MTekpro Technologies Private limited ::
B - 229, Greater Kailash N D-110048

+91 9810703882

Mon - Sat 8:30 AM - 7:00 PM

MOTOR TESTING

H.T. MOTORS (3.3 kV to 11 kV and >250 kW)

RECOMMENDED TESTS AS PER IEC

Tests on Stator

 Insulation Resistance and Polarization Index Measurement at recommended test voltage.
 
Capacitance and Tan delta Measurement at 10 kV or Uo Voltage  whichever is less.
 
Partial Discharge Measurement at 10 kV or Uo Voltage whichever is less.
 
DC Leakage current Measurement (Hi-Pot test).
 
DC Winding Resistance Measurement at 1A /10A DC constant source. 

 

1. Power quality 

Voltage level test(Over voltage/under voltage),Voltage unbalance(Examines the single-phase voltage in the motor by calculating its percentage unbalance via NEMA derating,Compares the voltage unbalance level with the stored threshold),Harmonic Distortion( Total Harmonic Distortion & Total Distortion-deal with quantifying the effect of non-fundamental components to the voltage and current waveform),Power.

2. Machine Performance

Effective Service Factor(Identifies thermal overloading of the machine),Load, Operating condition, Efficiency, Payback period(This test searches the database for motors, and compares the energy expenses of the motor under test with higher efficiency motors. Payback period is calculated, based on the compared motor’s list price, the energy savings calculated according to the specified duty cycle of the motor, the entered Rs/kWh, and the latest calculated input power of the motor. This test uses the premise that the comparison motor operates, on average, on a load point similar to the one measured.)

3. Current :Overcurrent, Current unbalance.

4. Rotor bar/Operating condition.

5. V/I spectrum.

6. Connection Domain Analysis.

 

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