，
GOST standard Y2 three phase motor is a kind of TEFC squirrel cage motor with the national unified design. It has the characteristics of high efficiency, energy saving, high starting torque, low noise, low vibration and easy maintenance. The grade of power and mounting measurements are subject to the IEC standard. This series motor is commonly used in the machinery without special requirement specially for reducer, air compressor, water pump, oil pump, packing and food machinery and so on.
Product Detail
Motor Type: GOST standard Y2 three phase motor
Output Power: 0.18 kW - 315 kW
Frame Size: IEC 63 - 355
Number of Poles: 2, 4, 6, 8
Voltage: 220/380V, 380/660V others for request
Frequency: 50 & 60 Hz
Protection Level: IP54 / IP55
Energy Efficiency Rating: IE1 / IE2 / IE3
Insulation Class: B/F
Cooling Method: IC411
Duty: S1
Product Parameter (specification)
GOST standard Y2 three phase motor
Production Features
Know More Us
Why Us
Service and Packing
FAQ
Why is the no-load current of a motor sometimes too large or too small?
1. Because of the excessive pressure during lamination, the insulation lamination of the core silicon steel sheet is broken or the insulation performance of the original insulation layer is not up to the requirements, which causes the insulation resistance between the sheets to decrease, and the core eddy current loss increases. When the current increases, the increase in the no-load loss is greater than the increase in the no-load current.
2. The winding wiring is wrong. eg: The three-phase asynchronous motor should be connected in a star connection, but connected in a delta connection. At this time, the no-load current is more than 3 times the normal value; the number of parallel branches is more than the design value, eg: 1 circuit should be connected in series, In fact, 2 circuits are connected in parallel, or 2 circuits should be connected in parallel, but 4 circuits are connected in parallel. At this time, the current will increase exponentially. Measure the DC resistance to determine whether it is a wiring error and theoretical reasons; remove the terminal cover and visually inspect the wiring end of the winding to find the cause of the fault.
3. A motor with a rated frequency of 60HZ is connected to a 50HZ alternating current, and the applied voltage is still at the rated value of 60HZ. At this time, the no-load current will be more than 1.2 times the normal value. Theoretically, it is 1.2 times, but since the core magnetic density at rated voltage is generally selected at the "knee" of the magnetization curve during the motor design, that is, the part above the linear part that transitions to "saturation", it is actually greater than 1.2 times , The measured data shows that the maximum can reach more than 1.7 times.
