Description:
The GN38-12KV series indoor isolator switch is designed and manufactured to meet the needs of compact and compact development for fixed high voltage cabinets.
It has a three-station structure, fully insulated bottom plate; and is equipped with coaxial locking and perfect mechanical interlocking mechanism, which is compact and compact. It is the best optional switch for compact box switchgear.
Use condition:
Ambient air temperature: upper limit +40 ° C lower limit -25 ° C
Above 2000m above sea level
Relative temperature: daily average is not more than 95%, monthly average is not more than 90%
The surrounding air should be free from corrosive or flammable gases, water vapor, etc., without frequent and severe vibrations
Serial
|
Project
|
Unit
|
Parameter
|
|
1
|
Rated voltage
|
KV
|
12
|
2
|
Rated frequency
|
HZ
|
50
|
3
|
Rated current
|
A
|
630-1250
|
4
|
Rated thermal stability current (4S)
|
KA
|
25-31.5
|
5
|
Rated dynamic current
|
KA
|
63-80
|
6
|
Rated insulation level
|
1 min Power frequency withstand voltage
|
KV
|
ground and phase 42; Isolation fracture 48
|
Lightning impulse withstand voltage
|
ground and phase 75; Isolation fracture 85
|