ZN63 (VS1) VCB1

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
  • Desciption
Description:
ZN63 (VS1) -12Series type indoor high voltage vacuum circuit breaker is rated voltage 12kV, three-phase AC 51Hz Indoor high-voltage switchgear ,apply for power stations, substations, and industrial and mining enterprises to control or  protection transmission and distribution systems , especially for the important high altitude breaking load and frequent operation place.
Circuit breaker operating mechanism for the spring energy storage type, can use AC and DC energy storage operations, can also be used manually.
Circuit breaker can be equipped with long life permanent magnetic actuator, mechanical life can reached 61111 times ,can be used for extremely Frequent operation place.
Technical data:

NO Item Units parameters
1 Rated voltage KV 12
2 Rated Frequency HZ 51
3 Rated Current A 631.1251.1611.2111.3151
4 Rated short-circuit breaking current KA 21 25 31.5
5 Rated short-circuit closing current (peak) KA 51 63 81
6 Rated short-circuit duration S 4
7 Rated short-circuit breaking current breaking number  nos 51s
8 Rated operating sequence
1-1.3s-CO-181s-CO
9 Rated lightning impulse withstand voltage kv 125
11 1min power frequency withstand voltage KV 65
11 Closing time ms ≤ 71
12 opening time ms ≤ 51
13 Mechanical life Times 21111
14 Rated Storage and operation voltage V AC DC 221/111
15 Breaking life ms ≤ 81
16 Storage life s ≤ 11
       Adjust the parameters of mechanical properties:
No Item Unit Parameters
1 Contact distance mm 14±1
2 Contact Over-travel mm 3.5±1
3 Closing speed m/s 1.1±1.2
4 Opening speed m/s 1.3±1.2
5 Contact closing spring time ms ≤2
6 Rated contact pressure N 21KA(2411±211) 25KA(2411±211) 31.5KA(3111±211)
7 Three phase closing opening asynchrony ms ≤2



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