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Indoor HV Isolation Switch For Switchgear Equipment
|Rate Voltage||12kV||Rate Current||630A-1250A|
|Hot Stable Current||12.5kA/4S||Move Satble Current||31.5kA/4S|
hv disconnect switch,
load break disconnect switch
GN30-12M Indoor High Voltage Isolation Switch with switchgear Equipment
1. The Indoor high voltage isolation switch GN30-12 is new design for rotating contact type switch , there have insulators and contacts .
2.The isolation switch, usually referred to as the high voltage isolation switch, is rated voltage above 1kV isolation switch, is the most used high voltage switch electrical appliances, working principle and structure is relatively simple, but because of the high usage, high reliability requirements, the design, construction and safe operation of power substation, power plant has a great impact.
Provide an electrical interval during the maintenance of electrical equipment and a visible break point for the safety of the maintenance personnel.
isolation switch operation: can not take rated load or heavy load operation, can not be divided, load current and short circuit current, but can take small load and empty circuit operation.
, general power supply operation: first the isolation switch, then the circuit breaker or load type switch; Disconnect circuit breaker or load type switch, then disconnect isolation switch.
The rated voltage, rated current, dynamic stable current, thermal stable current and so on shall be the same as other electrical equipment.
|Rated voltage (KV)||12|
|Insulator(capacity)||insulating||Frequency withstand voltage 5 min (KV)||42|
|Frequency withstand voltage 1 min (V)||2000|
|Lighting impulse withstand voltage (KV)||75|
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