Testing and commissioning

Transformers, Relays, switchgear, Motors, generators & Power Lines

We provide testing and commissioning services for Power generation, Transmission and Distribution systems up to 400kV. Our services are typically but not limited to:

Transformer Tests

We carry our comprehensive testing and commissioning of shunt reactors, power and distribution transformers such as

  1. Transformer primary tests: insulation power factor, turns ratio, winding excitation, insulation resistance, winding resistance, sweep frequency analysis, leakage reactance, CT saturation and ratio and dissolved gas analysis
  2. Transformer mechanical trips testing (Bucholz, Pressure relief devices and electronic thermal monitors).
  3. On Load tap changer (OLTC) testing, inspection and functional checks
  4. Testing and configuration of power transformer control and Protection relays (Overcurrent, earth fault, differential protection) and OLTC control relay
  5. Transformer stability tests.
  6. Transformer Oil sampling and testing.
  7. Performance of predictive maintenances: oil levels, oil sampling and analysis, temperature readings, visual inspections, Infrared thermography and ultrasound 

Relay Tests

We test and configure control and protection relays as per the customer settings requirements such as:

  1. Line protection & control relays
  2. Transformer protection & control relays
  3. Power generator protection & Control relays
  4. Motor protection & control relays
  5. Busbar protection and control Relays
  6. Voltage protection and control relays

Substation & Switchyard equipment Tests

We carry out testing and commissioning of substation and switchyard equipment such as

  1. Breaker Tests (Breaker timing, contact resistance, insulation resistance, local and remote operation)
  2. Capacitor Bank Tests (Capacitance Measurement, Inductance Measurement and High Voltage Test) 
  3. Motor Tests (Insulation Resistance Test, Full Voltage Test, Load Test and Motor Circuit Analysis
  4. Current and Voltage transformers  Tests (Tan Delta, Insulation Resistance, Polarity, Excitation, Winding Resistance and Ratio Test)
  5. Isolators, switch disconnectors and earth switches Tests (Insulation Resistance, contact  Resistance, alignment,  local and remote operation)
  6. Battery System Tests (Functional checks on Charger Panel, Load Test of Battery Charger, Charging and Discharging Test for Battery Cells)

Other Tests

We also carry out

  1. High Voltage Tests: HIPOT (Insulation Resistance, DC/VLF Hipot Test for HV cables and AC Hipot Test for HV Switchgear)
  2. Over Head Line Tests (Insulation Resistance Test, Phase Sequence Check, Positive, Negative and Zero Sequence Impedance)
  3. Earth Measurements (Grid Resistance Measurement, Step and Touch Potential, Earth Pit Resistance and Soil Resistivity Test Measurement)
  4. Power Quality Tests (Measuring and Analysing the Power Quality of Electrical Equipment and Harmonic Analysis) 
  5. SCADA setup, testing and configuring

Substation and switchyard equipment

We carry our testing and commissioning of all substation and switchyard equipment such as