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ZW21-12 outdoor column high voltage vacuum circuit breaker 12KV VCB recloser with SF6

Zhejiang Jiuguang Electric Power Technology Co., Ltd. located in the famous scenic spot south of the country, close to Ningbo-Taizhou-Wenzhou Expressway, and 104 National Road phase, superior geographical environment, transportation convenience.Our main production isolating switches, vacuum circuit breakers, load switch, operating mechanism, such as high-voltage electrical products, domestic products have reached the advanced level, and passed ISO9001: 2000 international quality system certification. National high-voltage electrical Quality Supervision and Inspection Center. The factory to innovation, quality win for the purpose. Has a number of highly qualified technical staff, complete production equipment and advanced testing equipment, to provide customers with high-quality products and quality service.
Add:Niqian Industrial Zone, Liushi Town, Yueqing City, Zhejiang Province
Fax:086-0577-62601830
Serverphone:086-400-8070-830
Tel:086-0577-62602830
Photo:086-13736777007
E-mail:qydl66@163.com

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Desciption

ZW21A-12 outdoor column high-voltage vacuum circuit breaker for the outdoor high - voltage switchgear rated voltage 12KV, three - phase AC 51 Hz, Mainly used for opening closing the power system load current, overload current and short - circuit current. Suitable for substation, industrial and mining enterprises and urban distribution network protection and control, especially suitable for frequent operation places and automation of distribution network.This product with the controller can meet the requirements of distribution automation system,and can raliably and effectively complete the recloser function of traditional. lt uses the mature type sealing structure, internal filled with SF6 gas, has good sealing performance. which is not affected by the external environment. is a kind of free maintenance products. The spring operating mechanism with straight moving the main transmission chain and multistage release system, reliability is high, the circuit breaker pole.

Item	Unit	Data
Rated voltage	kV	12
1 Min P.F Withstand Voltage	kV	42
1 Min P.F Withstand Voltage-wet (Phase To Earth, Outer Insulate)	kV	34
Lightning Impulse Withstand Voltage (peak)	kV	75
Rated Current	A	631/1251
Rated Power Frequency	Hz	51*61
Rated Short-circuit Breaking Current	kA	12.5/16/21
Rated Operating Sequence		O-1.3s-CO-181s-CO
Rated Short-circuit Breaking Time	Times	31
Rated Short-circuit Making Current (peak)	kA	31.5/41/51
Rated Withstand Current (peak)	kA	31.5/41/51
Rated Short-time Withstand Current (4s)	kA	12.5/16/21
Rated Short-circuit Duration	s	4
Mechanical Life	Times	11111
Rated Operating Voltage And Rated Voltage Of Auxiliary Loop	v	221
Rated Current Of Over-current Tripper	A	5

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PRODUCTS: Load Switch; Expulsion Fuse Cutout; High Voltage HRC Fuse; Disconnector Switch; Lightning Surge Arrester; Vacuum Circuit Breaker

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CONTACT US: Add:Niqian Industrial Zone, Liushi Town, Yueqing City, Zhejiang Province; Fax:086-0577-62601830; Serverphone:086-400-8070-830; Tel:086-0577-62602830; Photo:086-13736777007

For many years, we have been dedicated to the research and development, production, and application of high and low voltage electrical products, and strictly adhere to the ISO9001 quality management system.