Testing & Commissioning

Protection System Testing

Instrument Transformer Testing CTs, VTs and CVTs

Instrument Transformer Testing CTs, VTs and CVTs

Relay Input & output checks
Review of relay settings and logic diagrams
On site primary and secondary injection testing for all protection functions and logic verifications.
Relay Bench testing
Programming of settings
Wiring checks
System based testing using network simulation methods
Protection studies and review

Instrument Transformer Testing CTs, VTs and CVTs

Instrument Transformer Testing CTs, VTs and CVTs

Instrument Transformer Testing CTs, VTs and CVTs

Insulation resistance (IR) test
Ratio and phase accuracy test
Excitation characteristics and determining of the knee point
Composite error measurements
Determination of the CTs and VTs accuracy classes
Residual magnetism tests
Transient dimensioning factor
Burden test
Winding resistance test
Polarity checks

Power Transformer Testing

Instrument Transformer Testing CTs, VTs and CVTs

Power Transformer Testing

Insulation resistance (IR) and Polarization index (PI) tests
Ratio test
DC winding resistance test
Dielectric loss angle test (DLA) and capacitance measurements
Vector group test
Dynamic winding resistance test to check the behavior of the OLTC
Excitation test
Short circuit reactance test.
Sweep Frequency response Analysis (SFRA)
Visual and functional checks.
Partial Discharge

Circuit Breaker Testing

Circuit Breaker Testing

Power Transformer Testing

Static contact resistance test
Dynamic contact resistance test
Coil current Analysis
Motion/ contact travel
Under voltage condition test
Minimum pick up test
Partial Discharge

Switchboard Testing

Circuit Breaker Testing

Switchboard Testing

Insulation Resistance test
AC HIPOT test
Contact Resistance (Ductor test)
Functional tests.
Partial Discharge

Earth Testing

Circuit Breaker Testing

Switchboard Testing

Soil resistivity
Step and touch potential
Earth potential rise (EPR)
Ground impedance

Rotating Machines testing

Rotating Machines testing

Rotating Machines testing

Insulation resistance and Polarization index tests
Dielectric loss angle test (DLA) and capacitance measurements
Impedance tests
Winding resistance tests
Noise Level Measurements
Partial Discharge

Cable Testing

Rotating Machines testing

Rotating Machines testing

Insulation Resistance tests
AC/DC HIPOT test
Tangent Delta test
Sheath test
Partial Discharge
Cable Fault Location

Rotating Machines testing