Quick Details
Description
- Model NO.: ZW8-12, ZW8-12G
- Operation: Manual Type
- Arc-extinguishing Medium: Vacuum
- Structure: Moulded Case Circuit Breaker
- Type: Circuit Breaker
- Trademark: ZHON
- Origin: China
- Breaking Capacity: High Voltage Circuit Breakers
- Speed: High-Speed Circuit Breaker
- Installation: Fixed
- Certification: ISO9001-2000
- Function: Circuit-Breaker Failure Protection
- Specification: 12KV
- HS Code: 8535210000
ZW8-12 series outdoor high-voltage vacuum circuit breaker is a kind of three-phase outdoor high-voltage switchgear of rated voltage 12kV and AC 50Hz.
Its population structure is three-phase together box type. Three-phase vacuum arc-extinguish chamber palaces in a metal cabinet, using the SMC insulating material to insulate inter-phase and phase to earth, which is reliable in performance and high in insulating intensity.
ZW8-12G is combined with ZW8-12 circuit breaker and isolating sword, called combination circuit breaker and used as a section switch.
|
Item
|
Unit
|
Parameter
|
|
Rated Voltage
|
kV
|
12
|
|
Rated Current
|
A
|
630
|
|
Rated Short-circuit Breaking Current
|
kA
|
6.3
|
12.5
|
20
|
|
Rated Short-circuit Making Current (Peak)
|
kA
|
16
|
31.5
|
50
|
|
Rated Peak Withstand Current
|
kA
|
16
|
31.5
|
50
|
|
Rated Short-time Withstand Current
|
kA
|
6.3
|
12.5
|
20
|
|
Rated Insulation Level
|
1min Power Frequency
Withstand Voltage (Dry Test)
|
kV
|
42
|
|
Lightning Impulse Withstand Voltage (Peak)
|
kV
|
75
|
|
Rated Operating Sequence
|
|
O-0.3s-C O-180s-CO
|
|
Mechanical Life
|
times
|
10000
|
|
Rated Short-circuit Current Breaking Times
|
times
|
30
|
|
Rated Closing Voltage of Operator
|
V
|
110, 220
|
|
Rated Opening Voltage of Operator
|
V
|
110, 220
|
|
Clearance Between Open Contacts
|
mm
|
11± 1
|
|
Over travel of Contacts
|
mm
|
3
|
|
Three-phase Opening/Closing Synchronization
|
ms
|
≤ 2
|
|
Closing Bouncing Time
|
ms
|
≤ 2
|
|
Average Opening Speed
|
m/s
|
1.0± 0.2
|
|
Average Closing Speed
|
m/s
|
0.7± 0.15
|
|
Opening Time
|
Highest Operating Voltage
|
s
|
0.015~0.05
|
|
Lowest Operating Voltage
|
s
|
0.03~0.06
|
|
Closing Time
|
s
|
0.025~0.05
|
|
Main Loop Resistance of Each Phase
|
μ Ω
|
≤ 120
|
|
Total Thickness of Permissible Wear of Moving and Static Contacts
|
mm
|
3
|
Zhejiang Zhongneng Electrical Co., Ltd., located in Zhejiang Province, is the key medium/high voltage electric productive enterprise of FATO Mechanical and Electrical Equipment Group Co., Ltd.And a provincial advanced enterprise, mainly producing 220kV and below high voltage electro ceramic products, especially lightning arrester series, composite insulator series and drop-out fuse cutout series, and low-voltage surge protective device series.Our products have complete testing devices and strict quality and production management systems.Our products are known for the characteristics of solid power, advanced science and technology, considering service and solid quality.Moreover, for some core products, we have the independent intellectual property right.
Our corporation has the independent corporate capacity.Our progenitor is the division store of Suzhou Surge Arrester Co., Ltd.Which is founded in 1989, and after joined into FATO Mechanical and Electrical Equipment Group Co., Ltd.In 2003, we changed the name to Zhejiang Zhongneng Electrical Co., Ltd.
Zhejiang Zhongneng Electrical Co., Ltd.Is the professional over-voltage protectors manufacturing enterprise, and a member unit of China Electric Industry Association.We passed the certification of ISO9001 quality system and confirmed to standards such as IEC 60099-4, 61643-1, 291, 282 issued by international electric and industrial committee.Moreover, we have a long-term technical cooperation with many technical and research institutes and core enterprises in this industry line, and the qualities of our products can stand long-time decimation.
Following the technical and economical developing step, and the globalization process, in the merger process of global advantage resources, we constantly expect the cooperation coming from global partner.We are looking forward to cooperating with you!
