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Help CenterZW32M-12 Series Outdoor Permanent Magnet-type Vacuum Circuit Breaker
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ZW32M-12 series outdoor permanent magnet-type vacuum circuit
breaker is composite by ZW32-12 series Outdoor circuit breakers and CH-1
series line protection controller, after to increase the PT power composed
outdoor intelligent switch system and recloser . The intelligent system can
achieve three reclosing, overload protection, three-stage over-current
protection, automatic fault isolation section, improve system reliability in order
to achieve distribution network automation.
The use of environmental conditions
1. Altitude: ≤ 2000m.
2. Air temperature: -40°C ~ +50°C
3. Relative humidity: ≤ 95%
4. Maximum wind speed:35m/s
5. No fire, explosion hazard, serious filthy, chemical corrosion, as
well as places of intense vibration.
Mainly Technical parameters
No |
Item |
Unit |
Parameters |
|||
12kV |
24vK |
|||||
1 |
Rated frequency |
Hz |
50/60 |
|||
2 |
Rated voltage |
kV |
12kV |
24kV |
||
3 |
Rated insulation level |
1min power frequency withstand voltage dry wet |
Dry |
kV |
42 |
65 |
Wet |
34 |
50 |
||||
Rated lightning impulse withstand voltage |
75 |
125 |
||||
Current data | ||||||
1 |
Rated current |
A |
630 |
630 |
||
2 |
Loop resistance with limited on rated contact pressure |
µΩ |
≤80 |
≤80 |
||
3 |
Rated short-circuit breaking current |
kA |
20 |
20 |
||
4 |
Rated short-time withstand current |
kA |
20 |
20 |
||
5 |
Rated short-circuit duration |
S |
4 |
4 |
||
6 |
Rated peak withstand current |
kA |
50 |
50 |
||
7 |
Rated short-circuit closed current |
kA |
50 |
50 |
||
8 |
Rated operating sequence |
|
O-0.3s-CO-180s-CO |
|||
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