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Transformer Repair and Service

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Transformer Repair and Service

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Z TECH ELECTRIC CO. DEALS IN MARKETING AND REPAIR OF POWER TRANSFORMER UP TO 20MVA, 132KV VOLTAGE CLASS

We provide services throughout the life cycle of your transformer, from commissioning to recycling, for all brands and kinds of transformers.

TRANSFORMER TESTING:-

    • 1. Sweep Frequency Response Analysis
    • 2. Tan Delta of bushing and transformer winding.
    • 3. Transformer winding resistance measurement.
    • 4. Transformer ratio test.
    • 5. Transformer vector group test.
    • 6. Measurement of impedance voltage/short circuit impedance.
    • 7. Measurement of insulation resistance.(Meager Test)
    • 8. Tests on on-load tap-changer.
    • 9. IR PI.

    TRANSFORMER SPARES:-

    • 1. Bushings with metal part assembly.
    • 2. Cooling Radiators.
    • 3. Winding/Oil temperature indicator.
    • 4. Magnetic Oil Level Gauge, Pressure Relief Valve.
    • 5. Silica gel Breather & Flow indicators etc.
    • 6. Gasket & Oil seal etc.
    • 7. OLTC Spares.
    • 8. RTCC and related spares.

    TRANSFORMER OIL IS TESTED AS PER RECOMMENDATIONS OF RELEVANT IS
    We test the transformer oil for various crucial parameters such as:-

    • 1. Specific Resistance. (Resistivity)
    • 2. Dielectric Dissipation Factor. (Tan Delta)
    • 3. Neutralization Value. (Acidity)
    • 4. Moisture content.
    • 5. Inter Facial Tension.
    • 6. Dissolved Gas Analysis.
    • 7. Dielectric Strength.

    COMPACT SUBSTATION SERVICES & TESTING ( CT TESTING )
    Erection, Commissioning, testing and panting of Compact Substation:-

    • 1. Ratio test
    • 2. Polarity test
    • 3. IR
    • 4. Resistance
    • 5. Burden test

    PT TESTING

    • 1. Ratio test
    • 2. polarity test
    • 3. IR
    • 4. Resistance
    • 5. Burden test

    CIRCUIT BARKER TESTING & MAINTENANCE:-

    • 1. Insulation Test
    • 2. Resistance Measurement of Closing Coil, Tripping Coil, Spring Charge Motor Coil.
    • 3. Mechanical and Electrical Closing and Tripping Check
    • 4. Charging of spring through Manual and Electrical Check.
    • 5. Mechanical and Electrical Interlocks of Breaker Check.
    • 6. Trip Circuit Healthiness & Tripping
    • 7. Signal Lamp, Annunciation & amp; Anti pumping
    • 8. Mechanism Check
    • 9. Cleaning Of VCB Moving and Stand by Parts
    • 10. Greasing of All Moving Parts Of VCB
    • 11. Isolator
    • 12. Testing, Maintenance & Erection
    • 13. LA Testing
    • 14. Testing & Erection