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…
Classification of High Voltage Laboratories: Classification of High Voltage Laboratories depending on the purpose for which they are intended and the resources (finances) available, can be classified into four types.…
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…
High Voltage Test on Transformer: High Voltage Test on Transformer are very important and costly apparatus in power systems. Great care has to be exercised to see that the transformers…
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…
Dissipation Factor in Schering Bridge: Extension of range of the Dissipation Factor in Schering Bridge can be achieved by connecting in parallel an additional large capacitance across C3. But to…
High Voltage Schering Bridge: In the power frequency range (25 to 100 Hz) High Voltage Schering Bridge is a very versatile and sensitive bridge and is readily suitable for high…
Switching Surges in Transmission Line: Till the time when the transmission voltages were about 220 kV and below, over-voltages due to lightning were of very high order and overvoltages generated…