Active Member
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[China]
Address: 1107B Huidong Building, Wenhua East Road, Shandong, China
Contact name:Li Zheng
Shandong Green World International Trading Co., Ltd. |
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General:
ZN85-40.5 indoor high voltage circuit breaker is mainly used in 40.5KV power system and used as control and protect unit of power stations, substations and industrial mining enterprises, and frequency operation stations.
The main characteristics:
a) Circuit breaker uses the floor type handcart structure and make arc extinguish chamber above and institution below to make debug easy.
b) Circuit breaker uses air and organic materials compound insulation structure.
c) It can match with Cuter-Hammer vacuum arc-extinguish chamber and china vacuum arc-extinguish chamber. The arc-extinguish chamber uses vertical magnetic field arc-extinguish and has the function of lower closure.
d) Easy spring operation structure and 10000 times operation with maintenance-free.
e) Lead screw promoting structure with save effort, steady, good self-locking.
Model:
ZN85-40.5/T1250A,1600A/25 kA,31.5 kA
ZN85-40.5/T2000A,2500A/31.5 kA
The main parameters:
NO. | Item Name | Unit | Value | |
1 | Rated voltage | kV | 40.5 | |
2 | Power frequency withstand voltage(1min) | kV | 95 | |
3 | Lightning impulse withstand voltage(Peak) | kV | 185 | |
4 | Rated frequency | Hz | 50 | |
5 | Rated current | A | 1250, 1600,2000,2500 | |
6 | Rated short circuit breaking current | kA | 25 | 31.5 |
7 | 4s Rated short-time withstand current | kA | 25 | 31.5 |
8 | Rated peak withstand current(Peak) | kA | 63 | 80 |
9 | Rated short circuit making current(Peak) | kA | 63 | 80 |
10 | Rated capacitance breaking current | A | 400 | |
11 | Mechanical life | times | 10000 | |
12 | rated short circuit current cut-off times | times | 20 | |
13 | Rated operation sequence |
| part-0.3 s –close and open-180 s –close and open | |
