Partial Discharge Measurements

Partial Discharge Measurements: Earlier the testing of insulators and other equipment was based on the insulation resistance measurements, dissipation factor measurements and breakdown tests. It was observed that the dissipation…

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Testing of Materials Articles

Testing of Materials Articles: Dielectric Constant and Loss : Many insulating substances have dielectric constant greater than unity and have Dielectric Constant and Loss when subjected to a.c. voltages. These…

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High Voltage Testing of Electrical Apparatus Articles

High Voltage Testing of Electrical Apparatus Articles: Classification of High Voltage Testing Methods : Classification of High Voltage Testing Methods are divided into two groups: Power Frequency Withstand Voltage Impulse…

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High Voltage Laboratory Design Articles

High Voltage Laboratory Design Articles: Classification of High Voltage Laboratories : Classification of High Voltage Laboratories depending on the purpose for which they are intended and the resources (finances) available,…

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Grounding of Impulse Testing Laboratories

Grounding of Impulse Testing Laboratories: An earth or ground system means an established stable .reference potential normally taken to be zero. There are three types of Grounding of Impulse Testing…

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Operation of UHV Laboratory

Operation of UHV Laboratory: Operation of UHV Laboratory are designed as indoor laboratories or outdoor laboratories depending on the specific requirements. An indoor laboratory is preferred when most of the…

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High Voltage Laboratory Rating

High Voltage Laboratory Rating: The High Voltage Laboratory Rating and size of test equipment chosen in the h.v. laboratories depends on the test facilities to be provided. Normally, the design…

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High Voltage Laboratory Equipments

High Voltage Laboratory Equipments: A High Voltage Laboratory Equipments is expected to carry out withstand and/or flashover tests at high voltages on the following transmission system equipment: Transformers Lightning arresters…

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