Grounding disconnector JW8B-550

In 550KV lines, the double circuit transmission line towers are often used, in the maintenance of one of the circuit, due to normal operation, the other line will have an electromagnetic induction and electrostatic induction. So, the earthing switch, which is used on the into line side and outlet side of the transformer substation or which is to match the disconnector, should have the ability to open and close the electromagnetic induction and electrostatic induction to some extent. Since March 2005, our company started to research and develop such earthing switch, on December 30th, 2005, JW8B-550 earthing switch developed by our company passed all the test items in xi 'an high voltage electric institute. Its technical parameters is far higher than the international requirements, reached the international advanced, the domestic leading level. The main technical parameters