service Routine Tests | MEI Routine Tests | MEI

Routine Tests

Minimum Oil Circuit Breaker : Type T 52 / 2E & GUD

Standards followed:- IS 13118, IEC 56, IEC 694 & BS 116.

Tests Conducted:-

1. Power frequency voltage dry tests on the main circuits.
2. Power frequency voltage dry tests on the control & auxiliary circuits.
3. Measurement of resistance of the main circuit.
4. Mechanical operation test.

Oil Fuse Switches : Type VLE, VLEA & VLX

Standards followed:- IS 9920, IEC 420, IEC 265, IEC 285 & BS 3078.

Tests Conducted:-

1. Power frequency voltage dry tests on the main circuits.
2. Power frequency voltage dry tests on the control & auxiliary circuits.
3. Measurement of resistance of the main circuit.
4. Mechanical operation test.

Oil Fuse Switches & Isolators : Type OD & ODA

Standards followed:- IS 9921, IEC 265, IEC 285 & BS 116.

Tests Conducted:-

1. Power frequency voltage dry tests on the main circuits.
2. Power frequency voltage dry tests on the control & auxiliary circuits.
3. Measurement of resistance of the main circuit.
4. Mechanical operation test.

Vacuum Circuit Breakers : Type VB5-25/12 & VR5-20/08

Standards followed:- IS 13118, IEC 56, IEC 694 & BS 116.

Tests Conducted:-

1. Power frequency voltage dry tests on the main circuits.
2. Power frequency voltage dry tests on the control & auxiliary circuits.
3. Measurement of resistance of the main circuit.
4. Mechanical operation test.
5. Tests for contact speed & contact bounce.

Porcelain Clad Vacuum Circuit Breakers : Type PB5-25/12

Standards followed:- IS 13118, IEC 56, IEC 694 & BS 116.

Tests Conducted:-

1. Power frequency voltage dry tests on the main circuits.
2. Power frequency voltage dry tests on the control & auxiliary circuits.
3. Measurement of resistance of the main circuit.
4. Mechanical operation test.
5. Tests for contact speed & contact bounce.

Current Transformers

Standards followed:- IS 2705, IEC 185 & BS 3938.

Tests Conducted:-

1. Verification of terminal markings and polarity.
2. High voltage power frequency tests on primary winding.
3. High voltage power frequency tests on secondary windings.
4. Over voltage inter-turn test.
5. Determination of error according to the requirements of appropriate accuracy class.

Potential Transformers

Standards followed:- IS 3156, IEC 186 & BS 3941.

Tests Conducted:-

1. Verification of terminal markings and polarity.
2. High voltage power frequency tests on primary winding.
3. High voltage power frequency tests on secondary windings.
4. Over voltage inter-turn test.
5. Determination of error according to the requirements of appropriate accuracy class.

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