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High Voltage Testing

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High Voltage Testing

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Integral Power Testing and Commissioning Engineers undertake extensive testing and commissioning of your assets using state-of-the-art, professionally calibrated test equipment, fully traceable to a NATA accredited body under ILCAS. Test results obtained during testing are compared against FAT results, manufacturer’s publications, relevant Australian and International standards. Poor matches are investigated and rectified where possible, whereas, other issues are promptly reported to client.

Site Acceptance Tests (SAT) carried by Integral Power Testing and Commissioning Engineers covers the entire range of High Voltage Tests, including:

Power Transformers

  • Turns Ratio (TTR)
  • Excitation Current
  • Insulating Oil Tests (Dissolved Gas Analysis (DGA) & Standard Oil Test)
  • DC Winding Resistance
  • Vector Group
  • DC 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 (CTs)

  • 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 (VTs)

  • 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

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

Disconnectors & 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
  • Offline Partial Discharge
  • DC Insulation Resistance

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
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Testing & Commissioning Capability

Cable Testing

Substation Design Capability

Call us on

1300 206 964

Design Projects

IntegralPower® has been providing Specialist Electrical Engineering Design and Substation Consultancy Services to Power Generation, Transmission and Distribution clients for well over a decade. Here are some of our recent design engagements:

All projects
We provide Cost effective Design and Consulting Services for your Power Systems.

132kV SWITCHYARD

We provide Cost effective Design and Consulting Services for your Power Systems.

PROTECTION DESIGN

We provide Cost effective Design and Consulting Services for your Power Systems.

IEC61850 DESIGN

We provide Cost effective Design and Consulting Services for your Power Systems.

3D SWITCHROOM

Why Choose Integral Power Services?

Our High-voltage services are offered by Integral Power Services, with particular emphasis in the installation, maintenance, and refurbishment of high-voltage transformers.

Being Key substations contractors, we provide reliable and quality power services. Our experienced workforce assures efficiency in your electrical installations in terms of performance as well as safety and conformity to code.

Whether for scheduled Power (preventive maintenance) or sudden Power overhaul (emergent repairs), we provide lasting Power and assured results for total high-voltage (transformer) solutions, today and in the future.

ASP Level 1 to 3

  • Level 1: Work on high and low-voltage systems, including installation, repair, and removal of power lines and equipment.
  • Level 2: Connects low-voltage customers via overhead or underground service, including switchboards and meters.
  • Level 3: Provides certified design services for electricity network projects.

Experienced HV Team

The experienced HV team provides a complete high-voltage services coverage thus guaranteeing safe and optimum operation of your electrical appliances. Our service includes installations, regular maintenance, as well as timely emergency repair of your HV requirements. We will provide you with high-quality and long-lasting HV services to keep your business going.

High Voltage Transformer

We specialize in the installation of 11kV and 132kV transformers which offer efficient power distribution. We undertake all the work including project development, construction, and system integration as well as system validation. From 11kV transformer installation to 132kV transformer, we agilely handle the substation grounding and ultimate connection and guarantee long-term delivery.

High HV Equipment

Our services include high-voltage equipment installation and repair with an emphasis on the calibration (accuracy test) of electrical instruments and the testing of insulation resistance testers. We make certain that all measurements are correct and the dependability of the system is met for safety mechanisms for better running, durability, and safety of your electrical systems.

Certified Electrical Engineers

We employ professional electrical engineers in electrical commissioning of electrical installations for 33kV and 220kV testing and commissioning services. Our qualified team has various years of experience in high-voltage power systems hence guaranteeing you the best electrical systems that are safe, efficient, and of high quality as per the prevailing standards.

Australia Wide Service

We proudly offer Australia-wide service, covering major cities including Brisbane, Adelaide, Melbourne, and NSW. Our expert team is ready to provide top-tier electrical solutions across the country, ensuring consistent, high-quality service no matter where your project is located.