Model
X---------------------------------------box type
G---------------------------------------fixed type
N---------------------------------------handcart type
□---------------------------------------design No.
40.5-------------------------------------rated voltage (KV)
It is used to receive and distribute power of 40.5KV three-phase AC 50HZ system and it is especially suitable for the frequently operated place. The circuit breaker can be equipped with national ZN12-40 or ZN23-40.5 vacuum circuit breaker or SF2-35 SF6 circuit breaker, fixed installed and is with CD10 series of electromagnetic operating mechanism or CT19 series of spring operating mechanism. The disconnector applies the GN27 series of products. It is mainly used in the power plants, substations and industrial and mining enterprises.
Item |
Unit |
Value |
Rated voltage |
KV |
33~40.5 |
Rated insulation level |
1 min power frequency withstand voltage |
KV |
Phase-phase
Phase-earth |
Isolation fracture |
95 |
118 |
Rated lightning impulse withstand voltage |
185 |
215 |
Rated short-time withstand current (4S) |
KA |
20, 25, 31.5 |
Specified short circuit drop-out current |
KA |
20, 25, 31.5 |
Rated withstand current (peak) |
KA |
50, 63, 80 |
Rated short circuit making current |
KA |
50, 63, 80 |
Rated current |
A |
1250, 1600, 2000 |
Protection degree |
|
IP2X |
External dimension (W*D*H) |
mm |
1995*3120*3720 |
|