Description
- Place of Origin: Zhejiang, China (Mainland)
- Brand Name: TENGEN
- Model Number: ZW32-24G
- Type: High Voltage
- Poles Number: 3
- Rated voltage: 24KV
- Rated current: 630/1250A
- Frequency: AC50Hz
- Power frequency withstand voltage: 79KV
- Altitude: ≤2000
- Function: device protection
- Electrical life: 10000times
- Rated operation voltage: 110V/220V
- Standard: GB1984-2003,IEC62271-100,GB/T11022-1999,DL/T402-2007,GB/T311.2-2002
- Temperature: -45~40℃
Introduction
ZW32-12,ZW32-24 Series outdoor high voltage vacuum circuit breaker is rated voltage 12KV,24kv, three phase AC 50Hz outdoor distribution equipment .mainly used to breaking closing power system load current ,overload current and short-circuit current.
Normal Service Conditions
a. ambient air temperature , upper limit +40, lower limit-45
b. elevation,≤1000mIf there is any need to increase the elevation,, the rated insulation level should be increased properly
c. wind pressure, less than 700pa(the same as 34m/s wind speed)
d. Amplitude, The earthquake intensity does not exceed 8 degrees
e. pollution level, level 3
f. daily range of temperature ,less than 25
The main technical parameter,
Table 1 Circuit breaker parameter
|
No.
|
Item
|
Unit
|
Value
|
|
12KV
|
24KV
|
|
1
|
Rated voltage
|
KV
|
12
|
24
|
|
2
|
Rated current
|
A
|
400,630
|
630,1250
|
|
3
|
1min power frequency voltages
|
KV
|
42
|
79
|
|
4
|
Lightning impulse withstand voltage (peak)
|
KV
|
75
|
145
|
|
5
|
rated short-circuit breaking current
|
KA
|
16,20
|
20,25
|
|
6
|
rated short-circuit closing current (peak)
|
KA
|
40,50
|
50,63
|
|
7
|
rated peak value withstand current(peak)
|
KA
|
40,50
|
50,63
|
|
8
|
4S Rated instantaneous withstand current
|
KA
|
16,20
|
20,25
|
|
9
|
Rated operation sequence
|
|
Open-0.3s-close open-180s-close open
|
|
10
|
rated short-circuit breaking current breaking number
|
Times
|
30
|
|
11
|
mechanical life
|
times
|
10000
|
|
12
|
Energy storage motor voltage
|
V
|
DC or AC220
|
|
13
|
Rated control voltage
|
V
|
DC or AC220
|
|
14
|
Moving fixed contact limit erosion
|
mm
|
3
|
|
15
|
Over-current tripper rated current
|
A
|
5
|
Table2 Circuit breaker mechanical characteristic parameter
|
No.
|
product
|
Unit
|
Value
|
|
12KV
|
24KV
|
|
1
|
Contactor torque
|
mm
|
9±1
|
13±1
|
|
2
|
Contact travel
|
mm
|
2±0.5
|
3±1
|
|
3
|
Average closing speed
|
m/s
|
0.6±0.2
|
0.8±0.2
|
|
4
|
Average breaking speed
|
m/s
|
1.2±0.2
|
1.4±0.2
|
|
5
|
Closing time(rated operating voltage)
|
ms
|
≤2
|
≤2
|
|
6
|
Three-phase opening synchronism
|
ms
|
≤2
|
≤2
|
|
7
|
Three-phase breaking synchronism
|
ms
|
≤2
|
≤2
|
|
8
|
Closing time
|
ms
|
25~50
|
25~60
|
|
9
|
Breaking time
|
ms
|
18~45
|
23~50
|
|
10
|
major loop direct-current resistance
|
μΩ
|
≤80
|
≤100
|
|
11
|
Center distance of interphase
|
mm
|
340±3
|
395±3
|
Yueqing Cowen Import And Export Co., Ltd.
Year Established:
Business Type:Manufacturer, Trading Company
Management Certifiation:
Operational Address: Qianxiyang Village, Liushi Town, Yueqing, Wenzhou, Zhejiang, China (Mainland)
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