ZW7-40.5 outdoor high-voltage vacuum circuit breaker is a kind of outdoor high-voltage switchgear under three-phase AC 50Hz, 36kv rated voltage and below. It can be used to switch on and off the loading, overloading and short-circuit current.
Features:
1. Storage, making and breaking by motor, It can operating by handle.
2. Breaking short-circuit current up to 25kA.
3. Mini motor spring mechanism (about 30W).
4. Installation method: adopt two type installation method.
5. Sealing performance: adopt reliable sealing technical.
6. Incoming & Outgoing method: adopt porcelain bushing to make enough insulate distance.
7. Safe operating: there is an equipment to protect explosion.
1.connect spring operating structure or electromagnetic actuator structure,
2.remote controlelectric points, closing, o local manual energy storage, manual, closing. Design and performance in line
3. The overall structure of the product for the porcelain post type vacuum interrupter with porcelain, porcelainvases under pillar Suita ble for frequent operation place.
4.it has the advantages of good sealing performance.aging resistance, high pressure resistance, no burning, no explosion, long service life, easy installation andmaintenance
Techincal data:
No. |
Item |
Unit |
Data |
||
1 |
Rated voltage |
KV |
40.5 |
||
2 |
Rated current |
A |
1250,1600,2000 |
||
3 |
Rated short-circuit breaking current |
KA |
20,25,31.5 |
||
4 |
Rated insulation level |
Power frequency withstand voltage |
Dry |
KV |
95 |
Wet |
KV |
80 |
|||
Lightning impulse withstand voltage (peak value) |
KV |
185 |
|||
5 |
Rated operating sequence |
|
O-0.3s-CO-180s-CO |
||
6 |
Rated capacitor group breaking current |
A |
400 |
||
7 |
Rated short-circuit breaking current |
Time |
20 |
||
8 |
Rated peak withstand current |
KA |
50,63,80 |
||
9 |
Rated short - time withstand current |
KA |
20,25,31.5 |
||
10 |
Rated Short-circuit Continuing Time |
S |
4 |
||
11 |
Machinery life |
Time |
10000 |
||
12 |
Permissible gross wearing thickness for dynamic/static contacts |
mm |
3 |