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MS series aluminum housing 3 phase 0.5 hp motor is made of superior materials and conform to the IEC standard. MS motors have good performance, low noise, safety, reliable operation and nice appearance. It can be maintained very conveniently. This series has advantages of little vibration, light weight and simple construction. These series motors can be used for general drive such as water pumps, water treatment, road machinery, petroleum, chemical, metallurgy, cement and paper industries.
Product Detail
Motor Type: 3 phase 0.5 hp motor
Output Power: 0.06 kW - 18.5 kW
Frame Size: IEC Frame 56 - 160
Number of Poles: 2 / 4 / 6 / 8
Voltage: 220/380V, 380/660V, 230/400V, 400/690V
Frequency: 50 & 60 Hz
Protection Level: IP54 / IP55
Energy Efficiency Rating: IE1 / IE2 / IE3
Insulation Class: B/F
Cooling Method: IC411
Working System: S1
Product Parameter (Specification)
3 phase 0.5 hp motor
Type | Power HP | Rated Current (A) | Speed (r/min) | Eff (%) | Power Factor CosØ | Rated Torque Tn(N*m) | Tst/Tn | Tmax/Tn | Ist/In | |||||
220V | 380V | 660V | 230V | 400V | 690V | |||||||||
3000rpm.2 poles | ||||||||||||||
MS-633-2 | 0.5 | 1.96 | 1.14 | 0.66 | 1.85 | 1.08 | 0.63 | 2720 | 63.8 | 0.79 | 1.31 | 2.3 | 2.5 | 6.1 |
MS-711-2 | 0.5 | 1.95 | 1.13 | 0.66 | 1.83 | 1.07 | 0.62 | 2740 | 63.8 | 0.78 | 1.28 | 2.3 | 2.5 | 6.1 |
1500rpm.4 poles | ||||||||||||||
MS-712-4 | 0.5 | 1.98 | 1.16 | 0.67 | 1.91 | 1.08 | 0.64 | 1380 | 66.1 | 0.75 | 2.57 | 2.3 | 2.5 | 6.1 |
1000rpm. 6 poles | ||||||||||||||
MS-713-6 | 0.5 | 2.36 | 1.38 | 0.78 | 2.27 | 1.31 | 0.76 | 880 | 59.6 | 0.68 | 3.98 | 2.1 | 2.2 | 4.1 |
MS-801-6 | 0.37 | 2.34 | 1.36 | 0.79 | 2.24 | 1.29 | 0.75 | 910 | 59.6 | 0.71 | 3.94 | 1.91 | 1.8 | 4.1 |
750rpm.8 poles | ||||||||||||||
MS-90S-8 | 0.5 | 3.12 | 1.81 | 1.05 | 2.98 | 1.72 | 0.98 | 670 | 49.6 | 0.64 | 5.21 | 1.61 | 1.7 | 2.9 |
Production Features
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Analysis of motor bad heat dissipation
Analysis and Treatment of Bad Heat Dissipation of Motor
An AC induction motor burned out with smoke, and the fuse was blown.
The motor was running well after installation, but half a year later, the operator found that the temperature of the motor was higher than normal, and as the use date increased, the temperature of the motor became higher and higher. The operator asked an electrician to check and found no other abnormalities. The electrician believed that the current, voltage, speed, and sound were all normal and could continue to be used. But after a few days of continued use, the motor burned out with smoke and the fuse was blown. After disassembling the motor, it was found that unburned cotton wool remained in the ventilation duct.
Failure analysis:
When the voltage of the motor is normal and the load current is greater than the rated current, the temperature rise exceeds the allowable value, causing the motor to overheat and burn out, mostly due to poor ventilation, which affects the motor's heat dissipation. The unburned cotton wool remained in the motor ventilation duct, indicating that the cotton wool blocked the ventilation duct, which affected the heat dissipation and increased the temperature of the motor. As the use date increases, the degree of blockage becomes more and more serious, the heat dissipation conditions are getting worse, and the temperature rise is getting higher and higher, so that the temperature rise of the motor exceeds its allowable value, and finally causes the motor to burn.
After the motor burned out, the burned out of the motor windings further verified the cause of the burned out. If the motor winding coil is partially short-circuited or grounded, the winding burned is the local location. Motor overload (the current value is greater than the rated current) and the temperature rise exceeds the allowable value, all the stator windings are burned, and all the insulation is burnt. The load current of the motor did not exceed the rated value, the windings were all burned, and there were unburnt cotton wool remaining. Therefore, it can be concluded that the air duct was blocked, and the difference in heat dissipation of the motor increased the temperature rise, and finally burned.