Transformer Testing:

• Sweep Frequency Response Analysis
• Tan Delta of bussing and transformer winding.
• Transformer winding resistance measurement.
• Transformer ratio test.
• Transformer vector group test.
• Measurement of impedance voltage/short circuit impedance.
• Measurement of insulation resistance.(Meager Test)
• Tests on on-load tap-changer.
• IR PI.

Transformer Services:

• On site repair & Overhauling of Power & Special Transformers.
• Overhauling and repair of On Load Tap Changers.
• Erection, testing and commissioning of new transformers.
• Transformer Oil Filtration.
• Transformer Oil Testing.
• Dehydration of Core Coil assembly of the transformer.

Transformer Spares:

• Bushings with metal part assembly.
• Cooling Radiators.
• Winding/Oil temperature indicator.
• Magnetic Oil Level Gauge, Pressure Relief Valve.
• Silica gel Breather & Flow indicators etc.
• Gasket & Oil seal etc.
• OLTC Spares.
• 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:

• Specific Resistance. (Resistivity)
• Dielectric Dissipation Factor. (Tan Delta)
• Neutralization Value. (Acidity)
• Moisture content.
• Inter Facial Tension.
• Dissolved Gas Analysis.
• Dielectric Strength.

Compact Substation Services & Testing:

Erection, Commissioning, testing and panting of Compact Substation

CT Testing

• Ratio test
• Polarity test
• IR
• Resistance
• Burden test

PT Testing

• Ratio test
• polarity test
• IR
• Resistance
• Burden test

Circuit Barker Testing & Maintenance:

• Insulation Test
• Resistance Measurement of Closing Coil, Tripping Coil, Spring Charge Motor Coil.
• Mechanical and Electrical Closing and Tripping Check
• Charging of spring through Manual and Electrical Check.
• Mechanical and Electrical Interlocks of Breaker Check.
• Trip Circuit Healthiness & Tripping
• Signal Lamp, Annunciation & amp; Anti pumping
• Mechanism Check
• Cleaning Of VCB Moving and Stand by Parts
• Greasing of All Moving Parts Of VCB
• Isolator
• Testing, Maintenance & Erection
• LA Testing
• Testing & Erection