On-site HV/EHV Equipment Diagnostic Testing Services

We conduct the following tests.
• Power Transformer Testing
• CT/PT Testing
• CB Testing
• LA Testing
• Rotating Machine Testing (Motor /Generator)
• HT Cable Testing

Power Transformer Testing

Special Tests: –
1) Sweep Frequency Response Analysis (SFRA)
2) Partial Discharge Test
3) Capacitance & Dissipation Factor (Tan-Delta) measurement.
4) 10KV Excitation Current Measurement
5) 10KV Turn Ratio Measurement
6) On Line Water Content Measurement (Moisture Analysis)
7) Transformer Oil Test – General Tests, DGA & FURAN

Routine Tests: –
1) Winding Resistance Measurement.
2) Insulation Resistance / Polarization Index.
3) Magnetizing current & Short Circuit current.
4) Magnetic Balance & Vector Group.

CT / PT Testing

1) Capacitance & Dissipation Factor (Tan-Delta) measurement..
2) Insulation Resistance / Polarization Index.
3) Ratio & Polarity
4) Knee Point Voltage Measurement.

Circuit Breaker Testing

1) Insulation Resistance.
2) CRM (Contact Resistance Measurement)
3) DCRM (Dynamic Contact Resistance Measurement.), Travel & Velocity.
4) Timing Test.

Lightening Arrestors (L.A.) Testing

1) Capacitance & Dissipation Factor (Tan-Delta) measurement.
2) Insulation Resistance
3) On Line Leakage Current Measurement (LCM)

Rotating Machine Testing (H.T. Motor / Generator)

1) Capacitance & Dissipation Factor (Tan-Delta) measurement.
2) Insulation Resistance / Polarization Index.
3) Winding Resistance Measurement.
4) Partial Discharge Test.
5) Vibration & Current Signature Analysis.
6) Harmonic Analysis
7) Hi-Pot Test.
8) Surge Test

H.T. Cable Testing

1) Capacitance & Dissipation Factor (Tan-Delta) measurement.
2) VLF Hi-Pot Test & Tan-Delta.
3) Partial Discharge Test
4) Insulation Resistance & Polarization Index.
5) D.C. Hi-Pot Test.