Types of grounding switches
The grounding switch is divided into two types, such as maintenance grounding switch (ES) and fault fast shutdown grounding switch (FES), according to the requirements of the mounting position. (1) Overhaul the grounding switch (ES) is used to ground or disconnect the switchgear. When the equipment is overhauled, an obvious grounding point is formed on each side of the possible call.
There are mainly busbar grounding switch, outlet, inlet (installed in the main transformer circuit breaker bus side and outlet side, line circuit breaker bus side) grounding switch. (2) The fault fast shutdown grounding switch (FES) has the ability to close the short-circuit current and open and open inductive current, which is operated by an electric spring mechanism. Fault grounding switch is suitable for line outlet side grounding switch, fault grounding switch as the protection device during maintenance, and has the ability to close short-circuit current and open and open inductive current, so it is an important protection device, divided and combined by electric spring mechanism operation, generally installed in the line outlet isolation switch line side, and related to the isolation switch, The circuit breaker has an electrical chain.