Research to Prevent the Anti-charging Incident of the Voltage Transformer in the Substation

Abstract

The voltage transformer of the power system is a device which converts the high voltage of the primary side into the low voltage required by secondary device, and the primary side connects to the primary system, the secondary side connects to the measuring instrument, relay protection equipment and so on. This paper Introduces a kind of air switch with the ability of preventing the anti-charging occurring in the voltage transformer from secondary side of the to primary side in the ordinary air switch used in the practice. It will automatically handle the anti-charging phenomenon and protect the safety of the staff and equipments more effectively.