Product Description
Product Description
RM25 12V DC Built-in Rechargeable Lithium Battery Solar Panel Smart CHINAMFG ZigBee / Wifi Tubular Motor for blinds
We’re a leading curtain motor supplier in China, we always focus on motor and remote control system, we are especially professional at curtain motor, tubular motor and remote control system. Our products has built-in CHINAMFG module and are able to connect with GOOGLE HOME, echo dot .we also can work with the smart home system which adopts KNX,RS485,zigbee.
|
Product Type |
DC Tubular Motor |
Product Series |
RM25 LE Series |
|
Product Code |
RM25-LEC-W1-1.1/20, 1.5/20 |
Built In |
Lithium battery |
|
Battery capacity |
2600mAh |
Rated Voltage (V) |
12 |
|
Rated Current (A) |
0.9 |
Rated Power (W) |
10.8 |
|
Rated Torque (Nm) |
1.1 |
Rated Speed(rpm) |
20-28 |
|
Running Noise (dB) |
<38 |
Running Time (min) |
6 |
|
RF frequency(MHz) |
433.92 |
Protection Grade |
IP40 |
|
Insulation Grade |
B |
Length L1 (mm) |
587/579 |
Advantage :
1) With remote control, TuyaAPP can connect to Wifi, Google and Alexa
2) 25mm, 28mm, 35mm lithium battery motor stock is sufficient, quality assurance for 5 years.
3) Quite Operation , Customized service , Multi type control , Electronic limit , Obstacel detection , Aging test more than 10000 times .
Detailed Photos
Application
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| After-sales Service: | 24 Hours After-Sales Service |
|---|---|
| Warranty: | 3 Years |
| Kind: | Roman |
| Samples: |
US$ 50/Piece
1 Piece(Min.Order) | Order Sample |
|---|
| Customization: |
Available
|
|
|---|
.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
|
Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
|---|
| Payment Method: |
|
|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
|---|
| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
|---|
Can AC motors be used in both residential and commercial settings?
Yes, AC motors can be used in both residential and commercial settings. The versatility and wide range of applications of AC motors make them suitable for various environments and purposes.
In residential settings, AC motors are commonly found in household appliances such as refrigerators, air conditioners, washing machines, fans, and pumps. These motors are designed to meet the specific requirements of residential applications, providing reliable and efficient operation for everyday tasks. For example, air conditioners utilize AC motors to drive the compressor and fan, while washing machines use AC motors for agitating and spinning the drum.
In commercial settings, AC motors are extensively used in a wide range of applications across different industries. They power machinery, equipment, and systems that are crucial for commercial operations. Some common examples include:
- Industrial machinery and manufacturing equipment: AC motors drive conveyor belts, pumps, compressors, mixers, fans, blowers, and other machinery used in manufacturing, production, and processing facilities.
- HVAC systems: AC motors are used in commercial heating, ventilation, and air conditioning (HVAC) systems to drive fans, blowers, and pumps for air circulation, cooling, and heating.
- Commercial refrigeration: AC motors are utilized in commercial refrigeration systems for powering compressors, condenser fans, and evaporator fans in supermarkets, restaurants, and cold storage facilities.
- Office equipment: AC motors are present in various office equipment such as printers, photocopiers, scanners, and ventilation systems, ensuring their proper functioning.
- Transportation: AC motors are used in electric vehicles, trams, trains, and other forms of electric transportation systems, providing the necessary propulsion.
- Water and wastewater treatment: AC motors power pumps, mixers, and blowers in water treatment plants, wastewater treatment plants, and pumping stations.
The adaptability, efficiency, and controllability of AC motors make them suitable for a wide range of residential and commercial applications. Whether it’s powering household appliances or driving industrial machinery, AC motors play a vital role in meeting the diverse needs of both residential and commercial settings.
Are there energy-saving technologies or features available in modern AC motors?
Yes, modern AC motors often incorporate various energy-saving technologies and features designed to improve their efficiency and reduce power consumption. These advancements aim to minimize energy losses and optimize motor performance. Here are some energy-saving technologies and features commonly found in modern AC motors:
- High-Efficiency Designs: Modern AC motors are often designed with higher efficiency standards compared to older models. These motors are built using advanced materials and optimized designs to reduce energy losses, such as resistive losses in motor windings and mechanical losses due to friction and drag. High-efficiency motors can achieve energy savings by converting a higher percentage of electrical input power into useful mechanical work.
- Premium Efficiency Standards: International standards and regulations, such as the NEMA Premium® and IE (International Efficiency) classifications, define minimum energy efficiency requirements for AC motors. Premium efficiency motors meet or exceed these standards, offering improved efficiency compared to standard motors. These motors often incorporate design enhancements, such as improved core materials, reduced winding resistance, and optimized ventilation systems, to achieve higher efficiency levels.
- Variable Frequency Drives (VFDs): VFDs, also known as adjustable speed drives or inverters, are control devices that allow AC motors to operate at variable speeds by adjusting the frequency and voltage of the electrical power supplied to the motor. By matching the motor speed to the load requirements, VFDs can significantly reduce energy consumption. VFDs are particularly effective in applications where the motor operates at a partial load for extended periods, such as HVAC systems, pumps, and fans.
- Efficient Motor Control Algorithms: Modern motor control algorithms, implemented in motor drives or control systems, optimize motor operation for improved energy efficiency. These algorithms dynamically adjust motor parameters, such as voltage, frequency, and current, based on load conditions, thereby minimizing energy wastage. Advanced control techniques, such as sensorless vector control or field-oriented control, enhance motor performance and efficiency by precisely regulating the motor’s magnetic field.
- Improved Cooling and Ventilation: Effective cooling and ventilation are crucial for maintaining motor efficiency. Modern AC motors often feature enhanced cooling systems, including improved fan designs, better airflow management, and optimized ventilation paths. Efficient cooling helps prevent motor overheating and reduces losses due to heat dissipation. Some motors also incorporate thermal monitoring and protection mechanisms to avoid excessive temperatures and ensure optimal operating conditions.
- Bearings and Friction Reduction: Friction losses in bearings and mechanical components can consume significant amounts of energy in AC motors. Modern motors employ advanced bearing technologies, such as sealed or lubrication-free bearings, to reduce friction and minimize energy losses. Additionally, optimized rotor and stator designs, along with improved manufacturing techniques, help reduce mechanical losses and enhance motor efficiency.
- Power Factor Correction: Power factor is a measure of how effectively electrical power is being utilized. AC motors with poor power factor can contribute to increased reactive power consumption and lower overall power system efficiency. Power factor correction techniques, such as capacitor banks or power factor correction controllers, are often employed to improve power factor and minimize reactive power losses, resulting in more efficient motor operation.
By incorporating these energy-saving technologies and features, modern AC motors can achieve significant improvements in energy efficiency, leading to reduced power consumption and lower operating costs. When considering the use of AC motors, it is advisable to select models that meet or exceed recognized efficiency standards and consult manufacturers or experts to ensure the motor’s compatibility with specific applications and energy-saving requirements.
What is an AC motor, and how does it differ from a DC motor?
An AC motor, also known as an alternating current motor, is a type of electric motor that operates on alternating current. It converts electrical energy into mechanical energy through the interaction of magnetic fields. AC motors are widely used in various applications, ranging from household appliances to industrial machinery. Here’s a detailed explanation of what an AC motor is and how it differs from a DC motor:
AC Motor:
An AC motor consists of two main components: the stator and the rotor. The stator is the stationary part of the motor and contains the stator windings. These windings are typically made of copper wire and are arranged in specific configurations to create a rotating magnetic field when energized by an alternating current. The rotor, on the other hand, is the rotating part of the motor and is typically made of laminated steel cores with conducting bars or coils. The rotor windings are connected to a shaft, and their interaction with the rotating magnetic field produced by the stator causes the rotor to rotate.
The operation of an AC motor is based on the principles of electromagnetic induction. When the stator windings are energized with an AC power supply, the changing magnetic field induces a voltage in the rotor windings, which in turn creates a magnetic field. The interaction between the rotating magnetic field of the stator and the magnetic field of the rotor produces a torque, causing the rotor to rotate. The speed of rotation depends on the frequency of the AC power supply and the number of poles in the motor.
DC Motor:
A DC motor, also known as a direct current motor, operates on direct current. Unlike an AC motor, which relies on the interaction of magnetic fields to generate torque, a DC motor uses the principle of commutation to produce rotational motion. A DC motor consists of a stator and a rotor, similar to an AC motor. The stator contains the stator windings, while the rotor consists of a rotating armature with coils or permanent magnets.
In a DC motor, when a direct current is applied to the stator windings, a magnetic field is created. The rotor, either through the use of brushes and a commutator or electronic commutation, aligns itself with the magnetic field and begins to rotate. The direction of the current in the rotor windings is continuously reversed to ensure continuous rotation. The speed of a DC motor can be controlled by adjusting the voltage applied to the motor or by using electronic speed control methods.
Differences:
The main differences between AC motors and DC motors are as follows:
- Power Source: AC motors operate on alternating current, which is the standard power supply in most residential and commercial buildings. DC motors, on the other hand, require direct current and typically require a power supply that converts AC to DC.
- Construction: AC motors and DC motors have similar construction with stators and rotors, but the design and arrangement of the windings differ. AC motors generally have three-phase windings, while DC motors can have either armature windings or permanent magnets.
- Speed Control: AC motors typically operate at fixed speeds determined by the frequency of the power supply and the number of poles. DC motors, on the other hand, offer more flexibility in speed control and can be easily adjusted over a wide range of speeds.
- Efficiency: AC motors are generally more efficient than DC motors. AC motors can achieve higher power densities and are often more suitable for high-power applications. DC motors, however, offer better speed control and are commonly used in applications that require precise speed regulation.
- Applications: AC motors are widely used in applications such as industrial machinery, HVAC systems, pumps, and compressors. DC motors find applications in robotics, electric vehicles, computer disk drives, and small appliances.
In conclusion, AC motors and DC motors differ in their power source, construction, speed control, efficiency, and applications. AC motors rely on the interaction of magnetic fields and operate on alternating current, while DC motors use commutation and operate on direct current. Each type of motor has its advantages and is suited for different applications based on factors such as power requirements, speed control needs, and efficiency considerations.
editor by CX 2024-05-03
China manufacturer CHINAMFG 110V AC Slg52802 Sliding Gate Motor with Spring Limit Switch Opener vacuum pump design
Product Description
Product Description
I , Safety Instruction
Please ensure that the using power voltage matches with the supply voltage of gate opener (AC110V or AC220V); kids are forbidden to touch the control devices or the remote-control unit.
The remote-control unit is controlled by a single button mode or 3 button mode (please refer to the instructions of the remote control in accordance with the actual gate opener type). The indicator light on the remote-control unit will flicker when the button on it is pressed. Main engine and gate can be unlocked by disengagement wrench and the gate can move with manual operation after disengagement.
Please ensure that no 1 is around the main engine or gate when the switch is operated and it is usually demanded to examine the stability of installation. Please temporarily stop using if the main engine needs repairing or regulation.
The installation and maintenance of the products must be carried out by professionals.
II,Technical parameters
More options
Our exhibition
Company profile
Packing and shipping
FAQ
Q1. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
Q2.What can you buy from us?
Transmitter,Tubular Motor Receiver,Sliding Gate Opener,Garage Door Opener,Photocell
Q3. Why should you buy from us not from other suppliers?
Hiland is professional designer and qualified manufacturer of the automatic door control systems.We have 15 years experience We
have sliding/garage/swing/rolling shutter opener and control systems,transmitters,receivers,photocell,flash lamp,keypad etc.
Q4.How can i get a price of needed garage door opener?
A: Please give the exactly size and quantity of your required door. We can give you a detail quotation based on your requirements.
Q5.We want to be your agent of our area. How to apply for this?
A: Please send your ideal and your profile to any e-mails of us .Let’s talk more.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| After-sales Service: | 1 Year |
|---|---|
| Warranty: | 1 Year |
| Structure: | Wheeled |
| Samples: |
US$ 91.3/Piece
1 Piece(Min.Order) | Order Sample |
|---|
| Customization: |
Available
|
|
|---|
.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
|
Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
|---|
| Payment Method: |
|
|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
|---|
| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
|---|
What factors should be considered when selecting an AC motor for a particular application?
When selecting an AC motor for a particular application, several factors need to be considered to ensure the motor meets the requirements and performs optimally. Here are the key factors to consider:
- Power Requirements: Determine the power requirements of the application, including the required torque and speed. The motor should have adequate power output to meet the demands of the specific task. Consider factors such as starting torque, running torque, and speed range to ensure the motor can handle the load effectively.
- Motor Type: There are different types of AC motors, including induction motors, synchronous motors, and brushless DC motors. Each type has its own characteristics and advantages. Consider the application’s requirements and factors such as speed control, efficiency, and starting torque to determine the most suitable motor type.
- Environmental Conditions: Assess the environmental conditions in which the motor will operate. Factors such as temperature, humidity, dust, and vibration levels can impact motor performance and longevity. Choose a motor that is designed to withstand the specific environmental conditions of the application.
- Size and Space Constraints: Consider the available space for motor installation. Ensure that the physical dimensions of the motor, including its length, diameter, and mounting arrangement, are compatible with the available space. Additionally, consider the weight of the motor if it needs to be mounted or transported.
- Efficiency: Energy efficiency is an important consideration, as it can impact operational costs and environmental sustainability. Look for motors with high efficiency ratings, which indicate that they convert electrical energy into mechanical energy with minimal energy loss. Energy-efficient motors can lead to cost savings and reduced environmental impact over the motor’s lifespan.
- Control and Speed Requirements: Determine if the application requires precise speed control or if a fixed speed motor is sufficient. If variable speed control is needed, consider motors that can be easily controlled using variable frequency drives (VFDs) or other speed control mechanisms. For applications that require high-speed operation, select a motor that can achieve the desired speed range.
- Maintenance and Serviceability: Assess the maintenance requirements and serviceability of the motor. Consider factors such as the accessibility of motor components, ease of maintenance, availability of spare parts, and the manufacturer’s reputation for reliability and customer support. A motor that is easy to maintain and service can help minimize downtime and repair costs.
- Budget: Consider the budget constraints for the motor selection. Balance the desired features and performance with the available budget. In some cases, investing in a higher quality, more efficient motor upfront can lead to long-term cost savings due to reduced energy consumption and maintenance requirements.
By carefully considering these factors, it is possible to select an AC motor that aligns with the specific requirements of the application, ensuring optimal performance, efficiency, and reliability.
What are the common signs of AC motor failure, and how can they be addressed?
AC motor failure can lead to disruptions in various industrial and commercial applications. Recognizing the common signs of motor failure is crucial for timely intervention and preventing further damage. Here are some typical signs of AC motor failure and potential ways to address them:
- Excessive Heat: Excessive heat is a common indicator of motor failure. If a motor feels excessively hot to the touch or emits a burning smell, it could signify issues such as overloaded windings, poor ventilation, or bearing problems. To address this, first, ensure that the motor is properly sized for the application. Check for obstructions around the motor that may be impeding airflow and causing overheating. Clean or replace dirty or clogged ventilation systems. If the issue persists, consult a qualified technician to inspect the motor windings and bearings and make any necessary repairs or replacements.
- Abnormal Noise or Vibration: Unusual noises or vibrations coming from an AC motor can indicate various problems. Excessive noise may be caused by loose or damaged components, misaligned shafts, or worn bearings. Excessive vibration can result from imbalanced rotors, misalignment, or worn-out motor parts. Addressing these issues involves inspecting and adjusting motor components, ensuring proper alignment, and replacing damaged or worn-out parts. Regular maintenance, including lubrication of bearings, can help prevent excessive noise and vibration and extend the motor’s lifespan.
- Intermittent Operation: Intermittent motor operation, where the motor starts and stops unexpectedly or fails to start consistently, can be a sign of motor failure. This can be caused by issues such as faulty wiring connections, damaged or worn motor brushes, or problems with the motor’s control circuitry. Check for loose or damaged wiring connections and make any necessary repairs. Inspect and replace worn or damaged motor brushes. If the motor still exhibits intermittent operation, it may require professional troubleshooting and repair by a qualified technician.
- Overheating or Tripping of Circuit Breakers: If an AC motor consistently causes circuit breakers to trip or if it repeatedly overheats, it indicates a problem that needs attention. Possible causes include high starting currents, excessive loads, or insulation breakdown. Verify that the motor is not overloaded and that the load is within the motor’s rated capacity. Check the motor’s insulation resistance to ensure it is within acceptable limits. If these measures do not resolve the issue, consult a professional to assess the motor and its electrical connections for any faults or insulation breakdown that may require repair or replacement.
- Decreased Performance or Efficiency: A decline in motor performance or efficiency can be an indication of impending failure. This may manifest as reduced speed, decreased torque, increased energy consumption, or inadequate power output. Factors contributing to decreased performance can include worn bearings, damaged windings, or deteriorated insulation. Regular maintenance, including lubrication and cleaning, can help prevent these issues. If performance continues to decline, consult a qualified technician to inspect the motor and perform any necessary repairs or replacements.
- Inoperative Motor: If an AC motor fails to operate entirely, there may be an issue with the power supply, control circuitry, or internal motor components. Check the power supply and connections for any faults or interruptions. Inspect control circuitry, such as motor starters or contactors, for any damage or malfunction. If no external faults are found, it may be necessary to dismantle the motor and inspect internal components, such as windings or brushes, for any faults or failures that require repair or replacement.
It’s important to note that motor failure causes can vary depending on factors such as motor type, operating conditions, and maintenance practices. Regular motor maintenance, including inspections, lubrication, and cleaning, is essential for early detection of potential failure signs and for addressing issues promptly. When in doubt, it is advisable to consult a qualified electrician, motor technician, or manufacturer’s guidelines for appropriate troubleshooting and repair procedures specific to the motor model and application.
Can you explain the basic working principle of an AC motor?
An AC motor operates based on the principles of electromagnetic induction. It converts electrical energy into mechanical energy through the interaction of magnetic fields. The basic working principle of an AC motor involves the following steps:
- The AC motor consists of two main components: the stator and the rotor. The stator is the stationary part of the motor and contains the stator windings. The rotor is the rotating part of the motor and is connected to a shaft.
- When an alternating current (AC) is supplied to the stator windings, it creates a changing magnetic field.
- The changing magnetic field induces a voltage in the rotor windings, which are either short-circuited conductive bars or coils.
- The induced voltage in the rotor windings creates a magnetic field in the rotor.
- The magnetic field of the rotor interacts with the rotating magnetic field of the stator, resulting in a torque force.
- The torque force causes the rotor to rotate, transferring mechanical energy to the connected shaft.
- The rotation of the rotor continues as long as the AC power supply is provided to the stator windings.
This basic working principle is applicable to various types of AC motors, including induction motors and synchronous motors. However, the specific construction and design of the motor may vary depending on the type and intended application.
editor by CX 2024-04-26
China manufacturer Cbb65 Sh Capacitor AC Compressor Air Conditioner Parts Motor Capacitors High Quality vacuum pump distributors
Product Description
Recommend view more >>
|
Model Number: |
CBB65 air conditioner capacitor |
|
|
Type |
Polypropylene film capacitor |
|
|
Safety approvals: |
CQC/VDE/TUV/CL |
|
|
Approval standard |
GB/T3667,EN65712 |
|
|
Climatic category |
25/70/21,25/85/21,40/70/21,40/85/21 |
|
|
Rated voltage |
150VAC~600VAC(50-60Hz) |
|
|
Capacitance range |
3uf~100uf |
|
|
Capacitance tolerance |
+_5%(J),+_10%(K),+10%(U),-5%(U) |
|
|
Testing voltage |
|
|
|
Between terminals |
2*Un(VAC)/5s |
|
|
Between terminals and case |
2*Un+1000(VAC)/5s(>=2000VAC) |
|
|
Insulation Resistance(20) |
|
|
|
Between terminals |
>=2000MΩ,UF(500VDC,5s) |
|
|
Tangent of loss angle(20) |
<=0.002(100Hz) |
|
|
Class of safety protection |
S0/S3 |
|
|
Fault Currency |
10,000AFC(UL810) |
|
|
Place of CHINAMFG |
CHINA |
|
|
Packing |
More pieces in 1 inner box or polybag as customer request. |
|
|
Color |
accept customization |
|
|
Supplier type |
OEM factory |
|
|
Capacitance(uf) |
250/300VAC |
|
|
400-450VAC |
|
|
||||
|
|
Cylindrical |
|
Ocal |
Cylindrical |
|
Ocal |
||||
|
|
D |
H |
L*W*H |
H |
D |
L*W*H |
||||
|
10uf |
40 |
55 |
51.5*31.5*65 |
30 |
60 |
51.5*31.5*65 |
||||
|
15uf |
40 |
55 |
51.5*31.5*65 |
35 |
60 |
/ |
||||
|
20uf |
40 |
65 |
51.5*31.5*65 |
40 |
60 |
51.5*31.5*75 |
||||
|
25uf |
40 |
65 |
51.5*31.5*65 |
40 |
60 |
51.5*31.5*85 |
||||
|
30uf |
/ |
/ |
/ |
40 |
70 |
71.5*45*75 |
||||
|
35uf |
40 |
75 |
71.5*45*75 |
45 |
70 |
/ |
||||
|
40uf |
/ |
/ |
/ |
45 |
70 |
71.5*45*85 |
||||
|
45uf |
45 |
75 |
71.5*45*75 |
45 |
80 |
/ |
||||
|
50uf |
45 |
85 |
71.5*45*85 |
45 |
90 |
71.5*45*100 |
||||
|
60uf |
45 |
95 |
71.5*45*100 |
50 |
90 |
/ |
||||
What’s a dual run AC capacitor ?
* A capacitor is an electric component that temporarily stores an electrical charge and AC capacitor is a key component to start
air conditioner motors.
* A dual run capacitor supports “TWO” electric motors, 1 section for the condenser fan motor and the other for the compressor
motor. Beacause of technological innovation, the dual run capacitor can saves space by combining 2 capacitors into 1 case.
* Round cylinder-shaped dual run capacitors are commonly used for air conditioning, it can help in the starting of the compressor
and the condenser fan motor.
* Air conditioner capacitor is small in size, lightweight, heat resisting and anti-explosion.
Dual capacitors come in a variety of sizes, depending on the capacitance (µF or MFD) and the voltage.
1. The capacitance (µF or MFD) must be the same or stay within ±6% of its original value. Example: 45 µF cap can be substituted
by 42.3 to 47.7 µF with the same or better voltage ratings capacitor .
2. A 440 volt capacitor can be used in place of a 370 volt capacitor, as it can work better, but the 370 volt capacitor can’t be
used in place of a 440 volt capacitor.It will work for a while or will fail prematurely, because exceeding the capacitor’s
rated voltage will cause the dielectric to break down and the capacitor to short out.
“TIME” to Replace
The Dual Run AC Capacitor needs to be replaced when the following conditions occur:
1. The fan wouldn’t spin – the condenser fan motor maybe died.
2. The air conditioner is making humming sound, but no air flow.
3. Air conditioner stopped cooling – the compressor in the condenser maybe not coming on.
“SUPER EASY” to Install
* First, Shut off power to the A/C at both the thermostat and the breaker box. Secondly, taking out the capacitor.
* What’s important, make sure you know which wire is for which terminal – 3 terminals on the top are labeled “Herm”/”H” for
the compressor motor, “Fan”/”F” for the fan and “C” for the common line.
* Direct replacement, no need to change wiring or adapter.
* Last but not least, self-install will save you a substantial amount of money!
What is a starting capacitor and a running capacitor for a motor?
As we all know, a single-phase AC motor is not like a three-phase motor. It can turn when it is powered. It needs a starting torque to rotate, and the clockwise and anti-clockwise of this torque determines the steering of the motor, and there are many
ways to start. Among them, the capacitor start is one, which is customarily called the start capacitor, and the single-phase motor needs it to rotate smoothly.
However, some single-phase motors have more than 1 capacitor, and some motors have 2 capacitors. Why? Because some motors are equipped with a starting capacitor and a running capacitor, what is going on?
The difference between start capacitors and run capacitors.
Running capacitor: It is connected to the secondary winding to form an alternating magnetic field after phase-shifting the alternating current, and forms an approximately circular elliptical rotating magnetic field with the alternating magnetic field of the main winding. So he can be the same capacitor, but its role is different.
No matter what kind of capacitor, it has a starting effect at the beginning of the motor. However, when the motor reaches about 75% of the rated speed, the starting capacitor is automatically disconnected by the centrifugal switch, and the running capacitor continues to work with the motor. The process of starting the motor is actually the process of “column phase”. Because a single-phase motor is different from a three-phase motor, there is no phase difference, and a rotating magnetic field cannot be generated. The function of the capacitor is to make the starting winding current of the motor lead the running winding by 90 electrical angles in time and space to form a phase difference. Among them, the running capacitor also plays the role of balancing the current between the main and auxiliary windings. Since the starting capacitor works for an instant and a short time, the withstand voltage is required to be above 250V, while the running capacitor needs to work for a long time, and the withstand voltage is required to be above 450V.
The starting capacitor is to make the starting coil of the single-phase motor energized at the time of starting, and then cut off after starting. The running capacitor is to make the motor perform capacitance compensation during the operation, so the starting capacitor cannot be less, and the running capacitor can not be used.
The running capacitor is the starting capacitor used when the press is working normally. When the press starts, it starts the press together with the running capacitor. After the press is turned up, the start capacitor is disconnected. The running and starting capacitors are together, but 1 of the starting capacitors is open, and the starting capacitor is useless when the motor turns. What is the difference between the starting capacitor and the running capacitor? That is the capacity of the starting capacitor is large, generally 2-5 times that of the running capacitor, while the capacity of the running capacitor is small, and the capacity difference between the 2 is huge and easy to distinguish.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Home |
|---|---|
| Certification: | ISO9001, CE, CCC, RoHS |
| Type: | Polypropylene Film Capacitor |
| Samples: |
US$ 0.01/Piece
1 Piece(Min.Order) | Order Sample |
|---|
| Customization: |
Available
|
|
|---|
.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
|
Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
|---|
| Payment Method: |
|
|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
|---|
| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
|---|
What role do AC motors play in HVAC (heating, ventilation, and air conditioning) systems?
In HVAC (heating, ventilation, and air conditioning) systems, AC motors play a crucial role in various components and functions. These motors are responsible for powering fans, compressors, pumps, and other essential equipment within the HVAC system. Let’s explore the specific roles of AC motors in HVAC systems:
- Air Handling Units (AHUs) and Ventilation Systems: AC motors drive the fans in AHUs and ventilation systems. These fans draw in fresh air, circulate air within the building, and exhaust stale air. The motors provide the necessary power to move air through the ductwork and distribute it evenly throughout the space. They play a key role in maintaining proper indoor air quality, controlling humidity, and ensuring adequate ventilation.
- Chillers and Cooling Towers: HVAC systems that use chillers for cooling rely on AC motors to drive the compressor. The motor powers the compressor, which circulates refrigerant through the system, absorbing heat from the indoor environment and releasing it outside. AC motors are also used in cooling towers, which dissipate heat from the chiller system by evaporating water. The motors drive the fans that draw air through the cooling tower and enhance heat transfer.
- Heat Pumps: AC motors are integral components of heat pump systems, which provide both heating and cooling. The motor drives the compressor in the heat pump, enabling the transfer of heat between the indoor and outdoor environments. During cooling mode, the motor circulates refrigerant to extract heat from indoors and release it outside. In heating mode, the motor reverses the refrigerant flow to extract heat from the outdoor air or ground and transfer it indoors.
- Furnaces and Boilers: In heating systems, AC motors power the blowers or fans in furnaces and boilers. The motor drives the blower to distribute heated air or steam throughout the building. This helps maintain a comfortable indoor temperature and ensures efficient heat distribution in the space.
- Pumps and Circulation Systems: HVAC systems often incorporate pumps for water circulation, such as in hydronic heating or chilled water systems. AC motors drive these pumps, providing the necessary pressure to circulate water or other heat transfer fluids through the system. The motors ensure efficient flow rates and contribute to the effective transfer of thermal energy.
- Dampers and Actuators: AC motors are used in HVAC systems to control airflow and regulate the position of dampers and actuators. These motors enable the adjustment of airflow rates, temperature control, and zone-specific climate control. By modulating the motor speed or position, HVAC systems can achieve precise control of air distribution and temperature in different areas of a building.
AC motors in HVAC systems are designed to meet specific performance requirements, such as variable speed control, energy efficiency, and reliable operation under varying loads. Maintenance and regular inspection of these motors are essential to ensure optimal performance, energy efficiency, and longevity of the HVAC system.
In conclusion, AC motors play vital roles in HVAC systems by powering fans, compressors, pumps, and actuators. They enable proper air circulation, temperature control, and efficient transfer of heat, contributing to the overall comfort, air quality, and energy efficiency of buildings.
Are there energy-saving technologies or features available in modern AC motors?
Yes, modern AC motors often incorporate various energy-saving technologies and features designed to improve their efficiency and reduce power consumption. These advancements aim to minimize energy losses and optimize motor performance. Here are some energy-saving technologies and features commonly found in modern AC motors:
- High-Efficiency Designs: Modern AC motors are often designed with higher efficiency standards compared to older models. These motors are built using advanced materials and optimized designs to reduce energy losses, such as resistive losses in motor windings and mechanical losses due to friction and drag. High-efficiency motors can achieve energy savings by converting a higher percentage of electrical input power into useful mechanical work.
- Premium Efficiency Standards: International standards and regulations, such as the NEMA Premium® and IE (International Efficiency) classifications, define minimum energy efficiency requirements for AC motors. Premium efficiency motors meet or exceed these standards, offering improved efficiency compared to standard motors. These motors often incorporate design enhancements, such as improved core materials, reduced winding resistance, and optimized ventilation systems, to achieve higher efficiency levels.
- Variable Frequency Drives (VFDs): VFDs, also known as adjustable speed drives or inverters, are control devices that allow AC motors to operate at variable speeds by adjusting the frequency and voltage of the electrical power supplied to the motor. By matching the motor speed to the load requirements, VFDs can significantly reduce energy consumption. VFDs are particularly effective in applications where the motor operates at a partial load for extended periods, such as HVAC systems, pumps, and fans.
- Efficient Motor Control Algorithms: Modern motor control algorithms, implemented in motor drives or control systems, optimize motor operation for improved energy efficiency. These algorithms dynamically adjust motor parameters, such as voltage, frequency, and current, based on load conditions, thereby minimizing energy wastage. Advanced control techniques, such as sensorless vector control or field-oriented control, enhance motor performance and efficiency by precisely regulating the motor’s magnetic field.
- Improved Cooling and Ventilation: Effective cooling and ventilation are crucial for maintaining motor efficiency. Modern AC motors often feature enhanced cooling systems, including improved fan designs, better airflow management, and optimized ventilation paths. Efficient cooling helps prevent motor overheating and reduces losses due to heat dissipation. Some motors also incorporate thermal monitoring and protection mechanisms to avoid excessive temperatures and ensure optimal operating conditions.
- Bearings and Friction Reduction: Friction losses in bearings and mechanical components can consume significant amounts of energy in AC motors. Modern motors employ advanced bearing technologies, such as sealed or lubrication-free bearings, to reduce friction and minimize energy losses. Additionally, optimized rotor and stator designs, along with improved manufacturing techniques, help reduce mechanical losses and enhance motor efficiency.
- Power Factor Correction: Power factor is a measure of how effectively electrical power is being utilized. AC motors with poor power factor can contribute to increased reactive power consumption and lower overall power system efficiency. Power factor correction techniques, such as capacitor banks or power factor correction controllers, are often employed to improve power factor and minimize reactive power losses, resulting in more efficient motor operation.
By incorporating these energy-saving technologies and features, modern AC motors can achieve significant improvements in energy efficiency, leading to reduced power consumption and lower operating costs. When considering the use of AC motors, it is advisable to select models that meet or exceed recognized efficiency standards and consult manufacturers or experts to ensure the motor’s compatibility with specific applications and energy-saving requirements.
What is an AC motor, and how does it differ from a DC motor?
An AC motor, also known as an alternating current motor, is a type of electric motor that operates on alternating current. It converts electrical energy into mechanical energy through the interaction of magnetic fields. AC motors are widely used in various applications, ranging from household appliances to industrial machinery. Here’s a detailed explanation of what an AC motor is and how it differs from a DC motor:
AC Motor:
An AC motor consists of two main components: the stator and the rotor. The stator is the stationary part of the motor and contains the stator windings. These windings are typically made of copper wire and are arranged in specific configurations to create a rotating magnetic field when energized by an alternating current. The rotor, on the other hand, is the rotating part of the motor and is typically made of laminated steel cores with conducting bars or coils. The rotor windings are connected to a shaft, and their interaction with the rotating magnetic field produced by the stator causes the rotor to rotate.
The operation of an AC motor is based on the principles of electromagnetic induction. When the stator windings are energized with an AC power supply, the changing magnetic field induces a voltage in the rotor windings, which in turn creates a magnetic field. The interaction between the rotating magnetic field of the stator and the magnetic field of the rotor produces a torque, causing the rotor to rotate. The speed of rotation depends on the frequency of the AC power supply and the number of poles in the motor.
DC Motor:
A DC motor, also known as a direct current motor, operates on direct current. Unlike an AC motor, which relies on the interaction of magnetic fields to generate torque, a DC motor uses the principle of commutation to produce rotational motion. A DC motor consists of a stator and a rotor, similar to an AC motor. The stator contains the stator windings, while the rotor consists of a rotating armature with coils or permanent magnets.
In a DC motor, when a direct current is applied to the stator windings, a magnetic field is created. The rotor, either through the use of brushes and a commutator or electronic commutation, aligns itself with the magnetic field and begins to rotate. The direction of the current in the rotor windings is continuously reversed to ensure continuous rotation. The speed of a DC motor can be controlled by adjusting the voltage applied to the motor or by using electronic speed control methods.
Differences:
The main differences between AC motors and DC motors are as follows:
- Power Source: AC motors operate on alternating current, which is the standard power supply in most residential and commercial buildings. DC motors, on the other hand, require direct current and typically require a power supply that converts AC to DC.
- Construction: AC motors and DC motors have similar construction with stators and rotors, but the design and arrangement of the windings differ. AC motors generally have three-phase windings, while DC motors can have either armature windings or permanent magnets.
- Speed Control: AC motors typically operate at fixed speeds determined by the frequency of the power supply and the number of poles. DC motors, on the other hand, offer more flexibility in speed control and can be easily adjusted over a wide range of speeds.
- Efficiency: AC motors are generally more efficient than DC motors. AC motors can achieve higher power densities and are often more suitable for high-power applications. DC motors, however, offer better speed control and are commonly used in applications that require precise speed regulation.
- Applications: AC motors are widely used in applications such as industrial machinery, HVAC systems, pumps, and compressors. DC motors find applications in robotics, electric vehicles, computer disk drives, and small appliances.
In conclusion, AC motors and DC motors differ in their power source, construction, speed control, efficiency, and applications. AC motors rely on the interaction of magnetic fields and operate on alternating current, while DC motors use commutation and operate on direct current. Each type of motor has its advantages and is suited for different applications based on factors such as power requirements, speed control needs, and efficiency considerations.
editor by CX 2024-04-26
China manufacturer Y2 Ykk Yks High Voltage AC Squirrel Cage Asynchronous Induction Motor vacuum pump brakes
Product Description
Y2, YKK, YKS High Voltage AC Squirrel Cage Asynchronous Induction Motor
1. General introduction
YKK-series (2Kv~11Kv) squirrel-cage 3 phase asynchronous motor, is building on the advanced technology in the nation. The protection degree of the motor is of IP23(according toGb4942.1), and the cooling method is IC01(according to GB/T1993).
The motors has a lot of advantages such as height efficiency, enerty-saving, low noise and vibration ,light weight and reilable performance. THey are easy for installation andmaintenance. The motor has high insulation class and moistureproof capacity.
The motor is used to drive various mechanical equipments such as blowers, pumps, crushers, storkremoing machines and other equipments. It can serve as the prime movers in coalmines, mechanical industries, powerplants and various industrial enterprises.
2. Brief Construction
The motor adopts compacted box structure, welding-jointed steel plate forits frame, light weight, rigid in construction, there is closed air to air coolers on the stator frame convenient for installation and maintenance.
Stator winding adopts F class insulation and its end adopts firm binding. The whole stator adopts solvent-free varnish Vacuum pressure impregnation(VPI) to ensure the stator has excellent electric property and humidity resistance.
Rotor is made of cast aluminium or copper bar. Aluminium rotor is made of pure aluminium, copper barwedging copper rotor enhances the entorety of rotor.
The motor adopts rolling bering or sliding bering, according to the output power and rotary speed. Bearing protection grade normally is IP44. If the motor’s protect grade increases, so does the berings’. Rolling bearing adopts iubricating gresse and its grease charger and discharger can be charged or discharged without stopping the motor.
The junction box is of IP54 protection grade and it is usually mounted on the motor’s right side(viewed from shaft extension end.) It is also can be mounted on the left side and its outlets have 4 optional orientations(up, down, left or right.) Separated grounding unit is available in main junction box, too.
3. Working conditions and performance
a) THe rated power supply is 6KV/50HZ, 10KV/50HZ.
b) The insulation class is F, the protection degreeis IP44 or IP54.
c) Height above sea level does not exceeding 1000 meters.
d) Height environmental temperature-15ºC.silding bering>5ºC.
e) The ambient air relative humidity does not exceed 95% and the mean monthly minimum temperature of current month does not exceed 25ºC
f) The deviation between power voltage and rated voltage is less than5%.
g) Rated frequency:50Hz+1%.
h) Duty type:continuous duty type S1.
i) Cooling method is IC611.
Order requirement:
Please indicate the motor type, rated output, rated voltage, rated frequency, synchronous speed, Explosion proof Mark, mounting type, protection grade, cooling method, rotation direction(view from the shaft extension side), using environment (indoor /outside).
Comparison of different series High Voltage motors
| No. | Squirrel-cage motor | Y | YKK | YKS | Y2 |
| Slip ring motor | YR | YRKK | YRKS | / | |
| 1 | Structure | Box-type construction, made up of steel plates welded with each other | Compact struction | ||
| 2 | Cooling method | IC01 or (IC11, IC21, IC31) | IC611 or IC616 | IC81W | IC411 |
| 3 | Natural ventilation, with top mounted protection cover | With top mounted air-air cooler | With top mounted air-water cooler | ||
| 4 | Protection type | IP23 | IP44 or IP54 | IP44 or IP54 | IP54 |
| 5 | Insulation | F | |||
| 6 | Mounting arrangement | IMB3 | |||
| 7 | Voltage available | 3kv, 3.3kv; 6kv, 6.6kv; 10kv, 11kv | |||
| 8 | Frequency available | 50Hz , 60Hz | |||
Pictures of YKK,YKS High Voltage AC Squirrel Cage Asynchronous Induction Motors
Vertical flange mounted IC81W air-water cooled high voltage squirrel cage motor
Vertical flange mounted cast iron frame IC411 TEFC high voltage squirrel cage motor
Cerificate
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Application: | Industrial |
|---|---|
| Operating Speed: | Constant Speed |
| Number of Stator: | Three-Phase |
| Species: | Y, Y2 Series Three-Phase |
| Rotor Structure: | Squirrel-Cage |
| Casing Protection: | Closed Type |
| Customization: |
Available
|
|
|---|
How do variable frequency drives (VFDs) impact the performance of AC motors?
Variable frequency drives (VFDs) have a significant impact on the performance of AC motors. A VFD, also known as a variable speed drive or adjustable frequency drive, is an electronic device that controls the speed and torque of an AC motor by varying the frequency and voltage of the power supplied to the motor. Let’s explore how VFDs impact AC motor performance:
- Speed Control: One of the primary benefits of using VFDs is the ability to control the speed of AC motors. By adjusting the frequency and voltage supplied to the motor, VFDs enable precise speed control over a wide range. This speed control capability allows for more efficient operation of the motor, as it can be operated at the optimal speed for the specific application. It also enables variable speed operation, where the motor speed can be adjusted based on the load requirements, resulting in energy savings and enhanced process control.
- Energy Efficiency: VFDs contribute to improved energy efficiency of AC motors. By controlling the motor speed based on the load demand, VFDs eliminate the energy wastage that occurs when motors run at full speed even when the load is light. The ability to match the motor speed to the required load reduces energy consumption and results in significant energy savings. In applications where the load varies widely, such as HVAC systems, pumps, and fans, VFDs can provide substantial energy efficiency improvements.
- Soft Start and Stop: VFDs offer soft start and stop capabilities for AC motors. Instead of abruptly starting or stopping the motor, which can cause mechanical stress and electrical disturbances, VFDs gradually ramp up or down the motor speed. This soft start and stop feature reduces mechanical wear and tear, extends the motor’s lifespan, and minimizes voltage dips or spikes in the electrical system. It also eliminates the need for additional mechanical devices, such as motor starters or brakes, improving overall system reliability and performance.
- Precision Control and Process Optimization: VFDs enable precise control over AC motor performance, allowing for optimized process control in various applications. The ability to adjust motor speed and torque with high accuracy enables fine-tuning of system parameters, such as flow rates, pressure, or temperature. This precision control enhances overall system performance, improves product quality, and can result in energy savings by eliminating inefficiencies or overcompensation.
- Motor Protection and Diagnostic Capabilities: VFDs provide advanced motor protection features and diagnostic capabilities. They can monitor motor operating conditions, such as temperature, current, and voltage, and detect abnormalities or faults in real-time. VFDs can then respond by adjusting motor parameters, issuing alerts, or triggering shutdowns to protect the motor from damage. These protection and diagnostic features help prevent motor failures, reduce downtime, and enable predictive maintenance, resulting in improved motor reliability and performance.
- Harmonics and Power Quality: VFDs can introduce harmonics into the electrical system due to the switching nature of their operation. Harmonics are undesirable voltage and current distortions that can impact power quality and cause issues in the electrical distribution network. However, modern VFDs often include built-in harmonic mitigation measures, such as line reactors or harmonic filters, to minimize harmonics and ensure compliance with power quality standards.
In summary, VFDs have a profound impact on the performance of AC motors. They enable speed control, enhance energy efficiency, provide soft start and stop capabilities, enable precision control and process optimization, offer motor protection and diagnostic features, and address power quality considerations. The use of VFDs in AC motor applications can lead to improved system performance, energy savings, increased reliability, and enhanced control over various industrial and commercial processes.
What are the safety considerations when working with or around AC motors?
Working with or around AC motors requires careful attention to safety to prevent accidents, injuries, and electrical hazards. Here are some important safety considerations to keep in mind:
- Electrical Hazards: AC motors operate on high voltage electrical systems, which pose a significant electrical hazard. It is essential to follow proper lockout/tagout procedures when working on motors to ensure that they are de-energized and cannot accidentally start up. Only qualified personnel should perform electrical work on motors, and they should use appropriate personal protective equipment (PPE), such as insulated gloves, safety glasses, and arc flash protection, to protect themselves from electrical shocks and arc flash incidents.
- Mechanical Hazards: AC motors often drive mechanical equipment, such as pumps, fans, or conveyors, which can present mechanical hazards. When working on or near motors, it is crucial to be aware of rotating parts, belts, pulleys, or couplings that can cause entanglement or crushing injuries. Guards and safety barriers should be in place to prevent accidental contact with moving parts, and proper machine guarding principles should be followed. Lockout/tagout procedures should also be applied to the associated mechanical equipment to ensure it is safely de-energized during maintenance or repair.
- Fire and Thermal Hazards: AC motors can generate heat during operation, and in some cases, excessive heat can pose a fire hazard. It is important to ensure that motors are adequately ventilated to dissipate heat and prevent overheating. Motor enclosures and cooling systems should be inspected regularly to ensure proper functioning. Additionally, combustible materials should be kept away from motors to reduce the risk of fire. If a motor shows signs of overheating or emits a burning smell, it should be immediately shut down and inspected by a qualified professional.
- Proper Installation and Grounding: AC motors should be installed and grounded correctly to ensure electrical safety. Motors should be installed according to manufacturer guidelines, including proper alignment, mounting, and connection of electrical cables. Adequate grounding is essential to prevent electrical shocks and ensure the safe dissipation of fault currents. Grounding conductors, such as grounding rods or grounding straps, should be properly installed and regularly inspected to maintain their integrity.
- Safe Handling and Lifting: AC motors can be heavy and require proper handling and lifting techniques to prevent musculoskeletal injuries. When moving or lifting motors, equipment such as cranes, hoists, or forklifts should be used, and personnel should be trained in safe lifting practices. It is important to avoid overexertion and use proper lifting tools, such as slings or lifting straps, to distribute the weight evenly and prevent strain or injury.
- Training and Awareness: Proper training and awareness are critical for working safely with or around AC motors. Workers should receive training on electrical safety, lockout/tagout procedures, personal protective equipment usage, and safe work practices. They should be familiar with the specific hazards associated with AC motors and understand the appropriate safety precautions to take. Regular safety meetings and reminders can help reinforce safe practices and keep safety at the forefront of everyone’s minds.
It is important to note that the safety considerations mentioned above are general guidelines. Specific safety requirements may vary depending on the motor size, voltage, and the specific workplace regulations and standards in place. It is crucial to consult relevant safety codes, regulations, and industry best practices to ensure compliance and maintain a safe working environment when working with or around AC motors.
Are there different types of AC motors, and what are their specific applications?
Yes, there are different types of AC motors, each with its own design, characteristics, and applications. The main types of AC motors include:
- Induction Motors: Induction motors are the most commonly used type of AC motor. They are robust, reliable, and suitable for a wide range of applications. Induction motors operate based on the principle of electromagnetic induction. They consist of a stator with stator windings and a rotor with short-circuited conductive bars or coils. The rotating magnetic field produced by the stator windings induces currents in the rotor, creating a magnetic field that interacts with the stator field and generates torque. Induction motors are widely used in industries such as manufacturing, HVAC systems, pumps, fans, compressors, and conveyor systems.
- Synchronous Motors: Synchronous motors are another type of AC motor commonly used in applications that require precise speed control. They operate at synchronous speed, which is determined by the frequency of the AC power supply and the number of motor poles. Synchronous motors have a rotor with electromagnets that are magnetized by direct current, allowing the rotor to lock onto the rotating magnetic field of the stator and rotate at the same speed. Synchronous motors are often used in applications such as industrial machinery, generators, compressors, and large HVAC systems.
- Brushless DC Motors: While the name suggests “DC,” brushless DC motors are actually driven by AC power. They utilize electronic commutation instead of mechanical brushes for switching the current in the motor windings. Brushless DC motors offer high efficiency, low maintenance, and precise control over speed and torque. They are commonly used in applications such as electric vehicles, robotics, computer disk drives, aerospace systems, and consumer electronics.
- Universal Motors: Universal motors are versatile motors that can operate on both AC and DC power. They are designed with a wound stator and a commutator rotor. Universal motors offer high starting torque and can achieve high speeds. They are commonly used in applications such as portable power tools, vacuum cleaners, food mixers, and small appliances.
- Shaded Pole Motors: Shaded pole motors are simple and inexpensive AC motors. They have a single-phase stator and a squirrel cage rotor. Shaded pole motors are characterized by low starting torque and relatively low efficiency. Due to their simple design and low cost, they are commonly used in applications such as small fans, refrigeration equipment, and appliances.
These are some of the main types of AC motors, each with its unique features and applications. The selection of an AC motor type depends on factors such as the required torque, speed control requirements, efficiency, cost, and environmental conditions. Understanding the specific characteristics and applications of each type allows for choosing the most suitable motor for a given application.
editor by CX 2024-04-02