Description
- Place of Origin: Liaoning, China (Mainland)
- Brand Name: Dandong Danli
- Model Number: ZW20-12/T630-25
- Type: Vacuum, DL-027
- Poles Number: 3
- Model: ZW20-12/T630-25
- Material: rubber
- Application: High Voltage Equipment
- Product Name: Circuit Breaker
- Standard: IOS9001:2000
- Color: Grey
- Rated Voltage: 12 KV
Overview:
ZW20A-12 Type of outdoor high voltage vacuum circuit breaker for a period of 12KV, rated voltage of the three-phase AC 50HZ outdoor distribution equipment. It adopts vacuum arcing and SF6 gas as insulating medium is ZW20-12 column type vacuum circuit breaker on the modified products.
The product suitable for substation industrial and mining establishments rural power network and occasions with frequent operation to protect and control. ZW20A outdoor AC high voltage vacuum circuit breaker is mainly used to break and close load current, over-load current and short-circuit current in outdoor 36kv three-phase alternating current 50Hz power system, also suitable for occasion with frequent operations.
Service conditions:
1. Ambient Temperature: -40℃ ~ +40℃
2. Altitude: ≤2000m
3. Wind speed: ≤34m/s
4. Earthquake intensity: ≤8
5. Relative humidity: daily≤95%, month≤90%
6. Installation site: Not including inflammable, explosive, chemical corrosion.
Technical parameters:
|
NO.
|
Item
|
Unit
|
Numeric
|
|
1
|
Nominal Voltage
|
KV
|
12
|
|
2
|
Rated Frequency
|
HZ
|
50
|
|
3
|
Rated Current
|
A
|
630
|
|
4
|
Rated Short-circuit Breaking Current
|
KA
|
20
|
|
5
|
Dynamic Stability rated current
|
KA
|
50
|
|
6
|
RMS/Rated the rmal stabilization
|
KA/S
|
20/4
|
|
7
|
Mechanism life
|
Times
|
10000
|
|
8
|
Rated short-circuit closing breaking Number
|
Times
|
30
|
|
9
|
Rated operating sequence
|
|
O-0.3s-CO-180s-CO
|
|
10
|
Rated breaking current number
|
Tmes
|
10000
|
|
11
|
Rated short-circuit close-open current
|
KA
|
50
|
|
12
|
Rated insulation level
|
KV
|
|
Short Power-frequency withstand
|
Thunder
shocking
|
|
PE
|
42/34
|
75
|
|
PP
|
42/34
|
75
|
|
Fracture
|
48/34
|
85
|
|
Assist
|
2
|
|
|
13
|
SF6 rated pressure (20 spend pressure)
|
MPa
|
0.01
|
|
14
|
Rated short-circuit closing breaking Number
|
T
|
30
|
|
15
|
Rated short-circuit cut-off current's DC component
|
%dc
|
51.3
|

Dandong Power Equipment Factory
Year Established:
Business Type:Manufacturer, Trading Company
Management Certifiation:
Operational Address: Wuying Street, Yalu River Office, Zhenan District, Dandong, Liaoning, China (Mainland)
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