Breaking with rated current, overload current (FZRN21-40D/T125-31.5 can short-circuit breaking current) and to prevent equipment missing running ability to switch a visible fracture of isolation, with combined installed capacity of the ground with the relevant switches and electrical spring agencies, to remote control.
Category: Switchgear & Medium Voltage LBS
Brand: JGGY Electric
Model: FZRN21-40/FZN21-40
Power: 40KV/ 630A
FOB Port: Ningbo/Shanghai
Terms of Pyament: Western Union,T/T,Paypal
FZN21-40/T630-20 and FZN21-40(R)D/T125-31.5 type Indoor AC high voltage load switch- fuse combination units appliances for three-phase AC 40kV, 50Hz power system, or with the complete power distribution equipment and loop-network switch cabinet , combined substation and other ancillary uses, is widely used in urban network construction and transformation engineering, industrial and mining enterprises, high-rise buildings and public facilities ,can be used as ring power supply unit or terminal equipment, play power distribution, control and protection.
Breaking with rated current, overload current (FZRN21-40D/T125-31.5 can short-circuit breaking current) and to prevent equipment missing running ability to switch a visible fracture of isolation, with combined installed capacity of the ground with the relevant switches and electrical spring agencies, to remote control.
The use of environmental conditions
1.Air temperature: -25°C ~ +40°C;
2.Altitude: ≤1000m;
3.Relative humidity: daily average is not more than 95%,
4.Installation places: No fire, explosion hazard, serious filthy places.
5.Contamination level: II
Mainly technical parameters
NO. | Items | Unit | Value |
1 | Rated voltage | kV | 40.5 |
2 | Rated frequency | Hz | 50 |
3 | Maximum rated current of fuse | A | 63 |
4 | 1min power frequency withstand voltage | kV | 95/110 |
5 | Lightning impulse withstand voltage | kV | 185/215 |
6 | Rated peak withstand current | kA | 50 |
7 | 4S rated short time withstand current | kA | 20 |
8 | Rated active load breaking current | A | 1250 |
9 | Rated closed loop breaking current | A | 1250 |
10 | Rated cable charging breaking current | kA | 21 |
11 | Rated short circuit breaking current | kA | 31.5 |
12 | Rated short circuit making current | kA | 80(expected peak value) |
13 | Mechanical life | times | 10000 |
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