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Circuit Breaker Testing is utilised to test the operation of each switching systems and the programming of the entire tripping structure. Circuit Breaker Testing is essential to ensure the safe and reliable performance of this key link in the power asset chain. Circuit breakers perform three main tasks

Circuit Breaker Testing

As with insulators, it is vitally important to perform appropriate high-voltage testing on cables to ensure they meet required safety standards, and also to monitor any deterioration over time so you can take appropriate action when required.

High Voltage Cable Testing

An insulation resistance (IR) test measures the total resistance between any two points separated by electrical insulation. The test, therefore, determines how effective the dielectric (insulation) is in resisting the flow of electrical current.

Insulation Testing

Studies show that over 85% of disruptive failures in high voltage (HV) and medium voltage (MV) equipment are Partial Discharge related. Partial Discharge action ultimately leads to failure. Our PD testing service does not require shutdown and is the best way to plan maintenance, repair or replacement activities in a cost effective and efficient way.

Partial Discharge Analysis

Protective relays are used extensively across the power system to remove any element from service that suffers a short circuit, starts to operate abnormally or poses a risk to the operation of the system. The relaying equipment is aided in this task by instrument transformers that sense power conditions and circuit breakers that are capable of disconnecting the faulty element when called upon by the relaying equipment.

Relay & Protection Testing

Transformer ratio test. Transformer vector group test. Measurement of impedance voltage/short circuit impedance (principal tap) and load loss (Short circuit test) Measurement of no-load loss and current (Open circuit test) Measurement of insulation resistance.

Transformer Testing

An insulation resistance (IR) test measures the total resistance between any two points separated by electrical insulation. Such tests are useful for checking the quality of insulation, not only when a product is first manufactured but also over time as the product is used.

Resistance Testing

Transformer oil, a type of insulating and cooling oil used in transformers and other electrical equipment, needs to be tested periodically to ensure that it is still fit for purpose. This is because it tends to deteriorate over time.

Insulating Oil Testing

CT/PT testing methods are set by national and international standards. The relevant standards subdivide the instrument transformers into classes, for which the ratio error and phase angle are specified. The ratio errors are defined by the relative deviation of the measured amplitudes of the current- or voltage vectors from the nominal values.

CT PT Testing

Dissolved gas analysis (DGA) is an examination of electrical transformer oil contaminants. Insulating materials within electrical equipment liberate gases as they slowly break down over time. The composition and distribution of these dissolved gases are indicators of the effects of deterioration, such as pyrolysis or partial discharge, and the rate of gas generation indicates the severity

Dissolve gas analysis

The ASE 61850 Suite is a toolset of Windows-based applications designed to meet all your IEC-61850 operations test, engineering, compliance and management needs.

High Voltage Testing & Commissioning Services