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Help Center3 Phase 50Hz 12KV Circuit Breaker Outdoor Distribution Equipment
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3 Phase 50Hz 12KV Circuit Breaker Outdoor Distribution Equipment
ZW20A outdoor vacuum circuit breaker is a kind of outdoor distribution equipment, which is used to break and make load current, over-load current and short-circuit current in 12kv, three-phase AC 50Hz power system. Suitable for substations, industrial and mining establishments, rural power network and occasions with frequent operation to protect and control.
Main technical parameter
No. |
Item |
Unit |
Parameters |
1 |
Rated voltage |
kV |
12 |
2 |
Rated frequency |
Hz |
50 |
3 |
Rated current |
A |
630,1000 |
4 |
Rated short circuit breaking current |
kA |
12.5, 16, 20, 25 |
5 |
Rated peak withstand current (peak) |
kA |
31.5, 40, 50, 63 |
6 |
Rated short time withstand current (4s) |
kA |
12.5, 16, 20, 25 |
7 |
Rated short-circuit current (peak) |
kA |
31.5, 40, 50, 63 |
8 |
Mechanical life times |
time |
10000 |
9 |
Rated short-circuit breaking current breaking times |
time |
30 |
10 |
1 min power frequency withstand voltage (phase to earth / fracture) |
kV |
42/48 |
11 |
Peak lightning impulse withstand voltage (phase to earth / fracture) |
kV |
75/85 |
12 |
Secondary circuit power frequency withstand voltage 1 min |
kV |
2 |
13 |
Net weight |
kg |
140 |
14 |
Rated SF6 gas pressure (gauge pressure) |
Mpa |
“0” |
Product Structure
Basic configuration
1. The current transformer protection level 2
2. The spring mechanism 220V
3. To avoid the surge means
Optional equipment
1. The current transformer metering Level 3, 200/5 and above
2. External voltage transformer 2 (control power and metering)
3. coincide with the controller and a variety of FTU, RTU configuration uses
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