Testing & Commissioning

TESTING & Commissioning
An engineered approach

Our meticulously engineered client-specific Commissioning Plans,
Check Sheets and Test Reports help substations transition through
to energization in a safe, logical & step-by-step manner.

Power Transformers

Power Transformer Tests:

• Turns Ratio (TTR)
• Excitation Current
• Insulating Oil Tests (Dissolved Gas Analysis (DGA) & Standard Oil Test)
• DC Winding Resistance
• Vector Group
• Insulation Resistance
• Insulation Power Factor/ Dissipation Factor/ Tan Delta (Tanδ)
• Zero Sequence Impedance
• Sweep Frequency Response (SFRA)
• Primary Through Injection
• Transformer Differential Stability
• Tap Changer Continuity & Ratio
• Calibration of thermal sensors
• Standard Oil Test and Dissolved Gas Analysis (DGA)
• Ancillary Protection Testing

Current Transformers

• CT Polarity
• CT Circuit Continuity
• CT Ratio & Phase Error
• CT Secondary DC Resistance 
• CT Excitation/Magnetisation Curve 
• CT Primary & Secondary DC Insulation Resistance
• CT Burden Measurement
• Three-Phase Primary Injection
• CT Knee Point Current & Voltage Measurements

Voltage Transformers

• VT Polarity 
• VT Circuit Continuity
  VT Ratio
• VT Burden
• VT Primary & Secondary Insulation Resistance
• VT Phase and Magnitude Error
• VT Excitation curve
• VT Winding resistance
• VT Secondary burden
• VT Dielectric withstand/ HiPot

Generators

• Stator DC Winding Resistance
• Stator Zero, Positive & Negative Sequence Impedance
• Rotor AC and DC impedance
• DC Insulation Resistance & Polarisation Index
• Insulation Power Factor/ Dissipation Factor/ Tan Delta (Tanδ)
  Partial Discharge

Earthing Systems

• Soil Resistivity
• Earthing Inspection
• Earth Grid Continuity
• Current Injection Testing (CIT)
• Step and Touch Potential
• Earthing System Resistance

Circuit Breakers

• Static Contact Resistance
• Dynamic Contact Resistance
• Coil Current Analysis
• Charging Motor Current Analysis
• Motion/Contact Travel Test
• Under-Voltage Condition Test
• Circuit Breaker Timing
  Minimum Pick-up
• Insulation Power Factor/ Dissipation Factor/ Tan Delta (Tanδ)
• Circuit Breaker Trip & Open Checks
• DC Insulation Resistance
• Online Partial Discharge
• Protection Relay Trip Checks

Busbars

• Online Partial Discharge
• Contact Resistance
• Insulation resistance
• High Voltage Withstand (HiPot)
• Primary Injection
• Bus Zone Differential Stability

Isolators & Earth Switches

• Contact Resistance
• Insulation Resistance

Surge Arrestors & HV Bushings

• Contact Resistance
• Insulation Resistance
• Insulation Power Factor/ Dissipation Factor/ Tan Delta (Tanδ)

Power Lines

• Positive & Zero Sequence Impedance
• Earth Fault Current Compensation Factor
• Mutual Coupling between Parallel Lines,
• Coupling impedances between power lines, signal cables & pipelines

High Voltage Cables

• High Voltage Withstand (VLF)
• VLF Tan Delta / Dissipation Factor
• Sheath Withstand
• Online Partial Discharge
• DC Insulation Resistance

• 
  Power Transformers
  
• 
  Current Transformers
  
• 
  Voltage Transformers
  
• 
  Generators
  
• 
  Earthing Systems
  
• 
  Circuit Breakers
  
• 
  Busbars
  
• 
  Isolators & Earth Switches
  
• 
  Surge Arrestors & HV Bushings
  
• 
  Power Lines
  
• 
  High Voltage Cables
  

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From commissioning Utility-scale Renewable Generation to Mission Critical High Voltage Power networks, Integral Power has been at the forefront in the power industry, Leveraging High Voltage Expertise to create value for customers.

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