Insulation Testing Procedure of Voltage Transformer

To guide the responsible persons in conducting Voltage Transformer Insulation testing.

SAFETY PRECAUTIONS – The following Safety precautions shall be taken in consideration prior, during and after conducting the test measurements.

• Safety tagging shall be implemented.
• Isolate the Area by Safety Warning Tape.
• Keep a Safe Distance from the device being tested.
• Wear Appropriate Personal Protective Equipment(PPE) Prior to starting any testing activity.
• Implementation of Proper Grounding.

Voltage Transformer Insulation Testing

TEST EQUIPMENTS: OMICRON CPC-100

1. Setup the CALIBRATED test instrument in a firm, reasonably level base and dry area.
2. Identify test parameters and terminals for proper connections.
3. Conduct testing as per the following illustrated test Connections:

4. Stabilize all measured values before recording.
5. Evaluate and record test results as per Standards in standard test forms.