NFC had pass the ISO management System, Certificate Number: 06/0635. 

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Testing Transformers

1 Measurement of winding resistance.

2 Ratio, polarity and phase relationship.

3 Impedance Voltage.

4 Load losses.

5 No load losses and No load currents.

6 Insulation resistance test.

7 Induced over voltage withstand test.

8 Separate source voltage withstand test.

9 Zero phase sequence impedance measurement.

10 Power frequency high voltage test.