China Good quality Yej Braking AC Phase Motorhigh-Capacity Three-Phase Asynchronous Motor for Large-Scale Applications vacuum pump for ac

Product Description

YEJ braking AC Phase MotorHigh-Capacity Three-Phase Asynchronous Motor for Large-Scale Applications 

Factory advantage

1.30 years of history
2. Competitive prices
3. Quality Assurance
Four. Fast Delivery Time: General model about 15-20 days, special model about 30 days
Each process is 100% tested and 100% selective in raw materials
5. Be Efficient
6. Low Noise
7. Live Long
8. Save Energy
9. Slight vibration
10. Professional service/Patience
11. Warranty period: 12 months from the date of delivery
Main Markets: South , Europe, Middle East, Southest Asia, Africa, etc

Product description

     The series of brake motors are motor non-drag shaft end equipped with electromagnetic brake, when the motor When the power is lost, the brake disc of the electromagnetic brake will automatically press on the back cover of the motor to produce friction braking force Cabinet, so that the motor stop, no-load braking time random number from small to large, for 0.15 ~ 0.45 s.
     The brake power supply must drive the motor. The power supply is synchronized. Yej series motors are widely used in.
     Processing machine tools and conveying machinery and packaging, carpentry, food, chemical, textile, construction, stores Rolling Door and other mechanical action driving force.

Conditions of use

Base Center height: 63-160mm.
Controller Power: Base Center H < 100mm, AC 220V (99V after rectification)
Base center height: H > 112mm, AC 380V (170V after rectification)
Power Range: 0.12 ~ 45kW
Rated voltage: 380V (other voltages subject to separate agreement)
Rated frequency: 50 Hz (or 60 Hz)
Protection level: IP54(or IP55)
Insulation Grade: B/F working system: S 1
If there is no other request in the order or agreement, terminal box standard position is at the right side of the frame; data above may be changed without prior notice.   

WHY  CHOOSE  US  ?
1.We are professional  electric motor manufacture for  20 years since 1996.

2.We have best quality materials to make our electric motors best performance.

3.Our products are 100% brand new , 100% cooper wire , 100% output.

4.We have advanced and automated machines such as high speed punching machines, swing punching machines, machines to form the rotors ,stators etc. in 1 piece, automated packing machines which can produce nice appearance and good performance motors while decrease the labor cost and mechanical loss .

5.We have professional financial department who are good at calculating and controlling the cost and capital operation which could make most favorable prices for our customers.

6.We have a strong R&D team, which can develop and produce products according to drawings or samples provided by customers.

7.We have our own pump and motor production line, raw materials processing, factory direct sales, inexpensive.

8.We are only 200 kilometers away from HangZhou port, which is very convenient for export.

Motor decomposition
                                                                                                                                                                                                                                                                                                                                                                                                         

1.BFlange 9.Key 17.Rear endshield 25.Terminal box cover 33.Brasslug
2.B4Flange 10.Rotor 18.Fan 26.Screw  
3.Front  endshield 11.Stator 19.Fan cowl 27.Earth mark  
4.Shaft cover 12.Pedestal 20.FancowlScrew 28.Brass washer  
5.Spring washer 13.Pedestal bolt 21.Fan clamp 29.Deductioncap  
6.Vring Oil seal 14.Nameplate 22.Cable gland 30.Brassnet  
7.Bolt 15.Main frame 23.Terminal box base 31.Termiani board  
8.Bearing 16.Wave washer 24.Gasket 32.Leather washer  

Installation dimensions

Model Output
kW
Rated Ampere
A
RPM Eff.% Power Factor Rated Torque
N.m
LRT
FLT
Tst
TN
LRA
FLA
Ist
IN
BDT
FLT
Tmax
TN
dB(A)
Synchronous speed   3000 r/min
YE3EJ80M1-2 0.75 1.7 2870 80.7 0.83 2.50 2.2 7.0 2.3 67
YE3EJ80M2-2 1.1 2.4 2875 82.7 0.83 3.65 2.2 7.3 2.3 71
YE3EJ90S-2 1.5 3.2 2880 84.2 0.84 4.97 2.2 7.6 2.3 75
YE3EJ90L-2 2.2 4.6 2880 85.9 0.85 7.29 2.2 7.6 2.3 75
YE3EJ100L-2 3 6.0 2880 87.1 0.87 9.95 2.2 7.8 2.3 79
YE3EJ112M-2 4 7.8 2915 88.1 0.88 13.1 2.2 8.3 2.3 79
YE3EJ132S1-2 5.5 10.6 2935 89.2 0.88 17.9 2.0 8.3 2.3 83
YE3EJ132S2-2 7.5 14.4 2930 90.1 0.88 24.4 2.0 7.9 2.3 83
YE3EJ160M1-2 11 20.6 2950 91.2 0.89 35.6 2.0 8.1 2.3 87
YE3EJ160M2-2 15 27.9 2945 91.9 0.89 48.6 2.0 8.1 2.3 87
YE3EJ160L-2 18.5 34.2 2945 92.4 0.89 60.0 2.0 8.2 2.3 87
YE3EJ180M-2 22 41.8 2950 92.7 0.89 71.2 2.0 8.2 2.3 92
YE3EJ200L1-2 30 54.7 2965 93.3 0.89 96.6 2.0 7.6 2.3 92
YE3EJ200L2-2 37 67.4 2965 93.7 0.89 119 2.0 7.6 2.3 95
YE3EJ225M-2 45 84.4 2965 94.0 0.90 145 2.0 7.7 2.3 97
YE3EJ250M-2 55 98.5 2975 94.3 0.90 177 2.0 7.7 2.3 98
YE3EJ280S-2 75 134 2975 94.7 0.90 241 1.8 7.1 2.3 99
YE3EJ280M-2 90 160 2975 95.0 0.90 289 1.8 7.1 2.3 99
YE3EJ315S-2 110 197 2975 95.2 0.90 353 1.8 7.1 2.3 101
YE3EJ315M-2 132 236 2975 95.4 0.90 424 1.8 7.1 2.3 101
YE3EJ315L1-2 160 282 2975 95.6 0.91 514 1.8 7.2 2.3 103
YE3EJ315L2-2 200 352 2975 95.8 0.91 642 1.8 7.2 2.2 103
Model Output
kW
Rated Ampere
A
RPM Eff.% Power Factor Rated Torque
N.m
LRT
FLT
Tst
TN
LRA
FLA
Ist
IN
BDT
FLT
Tmax
TN
dB(A)
Synchronous speed   1500 r/min
YE3EJ80M1-4 0.55 1.4 1430 80.6 0.75 3.67 2.3 6.0 2.3 61
YE3EJ80M2-4 0.75 1.8 1430 82.5 0.75 5.01 2.3 6.6 2.3 61
YE3EJ90S-4 1.1 2.6 1430 84.1 0.76 7.35 2.3 6.8 2.3 67
YE3EJ90L-4 1.5 3.5 1440 85.3 0.77 9.95 2.3 7.0 2.3 67
YE3EJ100L1-4 2.2 4.8 1440 86.7 0.81 14.6 2.3 7.6 2.3 70
YE3EJ100L2-4 3 6.3 1440 87.7 0.82 19.9 2.3 7.6 2.3 70
YE3EJ112M-4 4 8.4 1455 88.6 0.82 26.3 2.2 7.8 2.3 74
YE3EJ132S-4 5.5 11.2 1465 89.6 0.83 35.9 2.0 7.9 2.3 78
YE3EJ132M-4 7.5 15.0 1465 90.4 0.84 48.9 2.0 7.5 2.3 78
YE3EJ160M-4 11 21.5 1470 91.4 0.85 71.5 2.0 7.7 2.3 82
YE3EJ160L-4 15 28.8 1470 92.1 0.86 97.4 2.0 7.8 2.3 82
YE3EJ180M-4 18.5 35.3 1470 92.6 0.86 120 2.0 7.8 2.3 82
YE3EJ180L-4 22 41.8 1470 93.0 0.86 143 2.0 7.8 2.3 82
YE3EJ200L-4 30 56.6 1475 93.6 0.86 194 2.0 7.3 2.3 84
YE3EJ225S-4 37 69.6 1480 93.9 0.86 239 2.0 7.4 2.3 84
YE3EJ225M-4 45 84.4 1480 94.2 0.86 290 2.0 7.4 2.3 84
YE3EJ250M-4 55 103 1485 94.6 0.84 354 2.0 7.4 2.3 86
YE3EJ280S-4 75 136 1490 95.0 0.88 481 2.0 6.9 2.3 89
YE3EJ280M-4 90 163 1490 95.2 0.88 577 2.0 6.9 2.3 89
YE3EJ315S-4 110 199 1485 95.4 0.89 707 2.0 7.0 2.2 96
YE3EJ315M-4 132 241 1485 95.6 0.88 849 2.0 7.0 2.2 96
YE3EJ315L1-4 160 288 1485 95.8 0.89 1571 2.0 7.1 2.2 97
YE3EJ315L2-4 200 359 1485 96.0 0.90 1286 2.0 7.1 2.2 97
Synchronous speed  1000 r/min
YE3EJ80M1-6 0.37 1.2 910 68.0 0.70 3.88 1.9 5.5 2.1 58
YE3EJ80M2-6 0.55 1.6 925 72.0 0.71 5.68 1.9 5.5 2.1 58
YE3EJ90S-6 0.75 2.0 945 78.9 0.71 7.59 2.0 6.0 2.1 61
YE3EJ90L-6 1.1 2.8 950 81.0 0.73 11.1 2.0 6.0 2.1 65
YE3EJ100L-6 1.5 3.8 950 82.5 0.73 15.1 2.0 6.5 2.1 67
YE3EJ112M-6 2.2 5.4 965 84.3 0.74 21.8 2.0 6.6 2.1 74
YE3EJ132S-6 3 7.2 975 85.6 0.74 29.4 1.9 6.8 2.1 71
YE3EJ132M1-6 4 9.5 975 86.8 0.74 39.2 1.9 6.8 2.1 71
YE3EJ132M2-6 5.5 12.7 975 88.0 0.75 53.9 1.9 7.0 2.1 71
YE3EJ160M-6 7.5 16.2 980 89.1 0.79 73.1 2.0 7.0 2.1 75
YE3EJ160L-6 11 23.1 980 90.3 0.80 107 2.0 7.2 2.1 75
YE3EJ180L-6 15 30.9 980 91.2 0.81 146 1.9 7.3 2.1 78
YE3EJ200L1-6 18.5 37.8 985 91.7 0.81 179 1.9 7.3 2.1 78
YE3EJ200L2-6 22 44.8 985 92.2 0.81 213 1.9 7.4 2.1 78

 

Model Output
kW
Rated Ampere
A
RPM Eff.% Power Factor Rated Torque
N.m
LRT
FLT
Tst
TN
LRA
FLA
Ist
IN
BDT
FLT
Tmax
TN
dB(A)
Synchronous speed   1000 r/min
YE3EJ225M-6 30 59.1 985 92.9 0.83 291 1.9 6.9 2.1 81
YE3EJ250M-6 37 71.7 985 93.3 0.84 359 1.9 7.1 2.1 83
YE3EJ280S-6 45 85.8 990 93.7 0.85 434 1.9 7.3 2.0 85
YE3EJ280M-6 55 103 990 94.1 0.86 531 1.9 7.3 2.0 85
YE3EJ315S-6 75 145 990 94.6 0.84 723 1.9 6.6 2.0 90
YE3EJ315M-6 90 171 990 94.9 0.85 868 1.9 6.7 2.0 90
YE3EJ315L1-6 110 209 990 95.1 0.85 1061 1.9 6.7 2.0 90
YE3EJ315L2-6 132 247 990 95.4 0.86 1273 1.9 6.8 2.0 90
Synchronous speed   750 r/min
YE3EJ80M1-8 0.18 0.80 700 56.0 0.61 2.46 1.8 3.3 1.9 54
YE3EJ80M2-8 0.25 1.1 700 59.0 0.61 3.41 1.8 3.3 1.9 54
YE3EJ90S-8 0.37 1.4 695 66.0 0.61 5.08 1.8 4.0 2.0 58
YE3EJ90L-8 0.55 2.0 695 70.0 0.61 7.56 1.8 4.0 2.0 58
YE3EJ100L1-8 0.75 2.3 705 73.5 0.67 10.2 1.8 4.0 2.0 61
YE3EJ100L2-8 1.1 3.2 705 76.5 0.69 14.9 1.8 4.0 2.0 61
YE3EJ112M-8 1.5 4.2 715 77.5 0.70 20.0 1.8 4.0 2.0 63
YE3EJ132S-8 2.2 5.9 730 80.0 0.71 28.8 1.8 5.5 2.2 66
YE3EJ132M-8 3 7.6 730 82.5 0.73 39.2 1.8 5.5 2.2 66
YE3EJ160M1-8 4 9.8 725 85.0 0.73 52.7 1.9 6.0 2.2 69
YE3EJ160M2-8 5.5 13.1 725 86.0 0.74 72.4 1.9 6.0 2.2 69
YE3EJ160L-8 7.5 17.4 730 87.5 0.75 98.1 1.9 6.0 2.2 72
YE3EJ180L-8 11 25.0 725 89.0 0.75 145 1.9 6.0 2.2 72
YE3EJ200L-8 15 33.2 730 90.4 0.76 196 2.0 6.5 2.2 75
YE3EJ225S-8 18.5 40.6 735 91.2 0.76 240 2.0 6.5 2.2 75
YE3EJ225M-8 22 46.8 735 91.5 0.78 286 2.0 6.5 2.2 75
YE3EJ250M-8 30 62.6 735 92.2 0.79 390 1.9 6.5 2.0 77
YE3EJ280S-8 37 76.5 740 93.0 0.79 478 1.8 6.0 2.0 78
YE3EJ280M-8 45 92.6 740 93.5 0.79 581 1.8 6.0 2.0 78
YE3EJ315S-8 55 111 740 93.8 0.81 710 1.8 6.5 2.0 84
YE3EJ315M-8 75 151 740 94.0 0.81 968 1.8 6.5 2.0 85
YE3EJ315L1-8 90 181 740 94.5 0.81 1161 1.8 6.5 2.0 85
YE3EJ315L2-8 110 218 740 94.8 0.82 1420 1.8 6.5 2.0 85


/* 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, Universal, Power Tools
Operating Speed: High Speed
Number of Stator: Three-Phase
Species: Yej
Rotor Structure: Squirrel-Cage
Casing Protection: Closed Type
Samples:
US$ 450/Piece
1 Piece(Min.Order)

|

Customization:
Available

|

induction motor

Are there specific maintenance requirements for AC motors to ensure optimal performance?

Yes, AC motors have specific maintenance requirements to ensure their optimal performance and longevity. Regular maintenance helps prevent unexpected failures, maximizes efficiency, and extends the lifespan of the motor. Here are some key maintenance practices for AC motors:

  1. Cleaning and Inspection: Regularly clean the motor to remove dust, dirt, and debris that can accumulate on the motor surfaces and hinder heat dissipation. Inspect the motor for any signs of damage, loose connections, or abnormal noise/vibration. Address any issues promptly to prevent further damage.
  2. Lubrication: Check the motor’s lubrication requirements and ensure proper lubrication of bearings, gears, and other moving parts. Insufficient or excessive lubrication can lead to increased friction, overheating, and premature wear. Follow the manufacturer’s guidelines for lubrication intervals and use the recommended lubricants.
  3. Belt and Pulley Maintenance: If the motor is coupled with a belt and pulley system, regularly inspect and adjust the tension of the belts. Improper belt tension can affect motor performance and efficiency. Replace worn-out belts and damaged pulleys as needed.
  4. Cooling System Maintenance: AC motors often have cooling systems such as fans or heat sinks to dissipate heat generated during operation. Ensure that these cooling systems are clean and functioning properly. Remove any obstructions that may impede airflow and compromise cooling efficiency.
  5. Electrical Connections: Regularly inspect the motor’s electrical connections for signs of loose or corroded terminals. Loose connections can lead to voltage drops, increased resistance, and overheating. Tighten or replace any damaged connections and ensure proper grounding.
  6. Vibration Analysis: Periodically perform vibration analysis on the motor to detect any abnormal vibrations. Excessive vibration can indicate misalignment, unbalanced rotors, or worn-out bearings. Address the underlying causes of vibration to prevent further damage and ensure smooth operation.
  7. Motor Testing: Conduct regular motor testing, such as insulation resistance testing and winding resistance measurement, to assess the motor’s electrical condition. These tests can identify insulation breakdown, winding faults, or other electrical issues that may affect motor performance and reliability.
  8. Professional Maintenance: For more complex maintenance tasks or when dealing with large industrial motors, it is advisable to involve professional technicians or motor specialists. They have the expertise and tools to perform in-depth inspections, repairs, and preventive maintenance procedures.

It’s important to note that specific maintenance requirements may vary depending on the motor type, size, and application. Always refer to the manufacturer’s guidelines and recommendations for the particular AC motor in use. By following proper maintenance practices, AC motors can operate optimally, minimize downtime, and have an extended service life.

induction motor

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.

induction motor

How does the speed control mechanism work in AC motors?

The speed control mechanism in AC motors varies depending on the type of motor. Here, we will discuss the speed control methods used in two common types of AC motors: induction motors and synchronous motors.

Speed Control in Induction Motors:

Induction motors are typically designed to operate at a constant speed determined by the frequency of the AC power supply and the number of motor poles. However, there are several methods for controlling the speed of induction motors:

  1. Varying the Frequency: By varying the frequency of the AC power supply, the speed of an induction motor can be adjusted. This method is known as variable frequency drive (VFD) control. VFDs convert the incoming AC power supply into a variable frequency and voltage output, allowing precise control of motor speed. This method is commonly used in industrial applications where speed control is crucial, such as conveyors, pumps, and fans.
  2. Changing the Number of Stator Poles: The speed of an induction motor is inversely proportional to the number of stator poles. By changing the connections of the stator windings or using a motor with a different pole configuration, the speed can be adjusted. However, this method is less commonly used and is typically employed in specialized applications.
  3. Adding External Resistance: In some cases, external resistance can be added to the rotor circuit of an induction motor to control its speed. This method, known as rotor resistance control, involves inserting resistors in series with the rotor windings. By varying the resistance, the rotor current and torque can be adjusted, resulting in speed control. However, this method is less efficient and is mainly used in specific applications where precise control is not required.

Speed Control in Synchronous Motors:

Synchronous motors offer more precise speed control compared to induction motors due to their inherent synchronous operation. The following methods are commonly used for speed control in synchronous motors:

  1. Adjusting the AC Power Frequency: Similar to induction motors, changing the frequency of the AC power supply can control the speed of synchronous motors. By adjusting the power frequency, the synchronous speed of the motor can be altered. This method is often used in applications where precise speed control is required, such as industrial machinery and processes.
  2. Using a Variable Frequency Drive: Variable frequency drives (VFDs) can also be used to control the speed of synchronous motors. By converting the incoming AC power supply into a variable frequency and voltage output, VFDs can adjust the motor speed with high accuracy and efficiency.
  3. DC Field Control: In some synchronous motors, the rotor field is supplied by a direct current (DC) source, allowing for precise control over the motor’s speed. By adjusting the DC field current, the magnetic field strength and speed of the motor can be controlled. This method is commonly used in applications that require fine-tuned speed control, such as industrial processes and high-performance machinery.

These methods provide different ways to control the speed of AC motors, allowing for flexibility and adaptability in various applications. The choice of speed control mechanism depends on factors such as the motor type, desired speed range, accuracy requirements, efficiency considerations, and cost constraints.

China Good quality Yej Braking AC Phase Motorhigh-Capacity Three-Phase Asynchronous Motor for Large-Scale Applications   vacuum pump for ac	China Good quality Yej Braking AC Phase Motorhigh-Capacity Three-Phase Asynchronous Motor for Large-Scale Applications   vacuum pump for ac
editor by CX 2024-05-17

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