ZN63(VS1) 12 Vacuum Circuit Breakers 10kV 11kV 12kV VCB Indoor 630A 1250A High and Medium Voltage Vacuum Circuit Breakers
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- Supplier: Zhejiang Zhegui Electric Co. Ltd.
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Product Overview
Description
VS1-12 indoor mounted high voltage vacuum circuit breaker, suitable for rated voltage 12 kV, frequency 50Hz three-phase power system, as the protection and control of electrical appliances, because of the special advantages of vacuum circuit breaker, especially suitable for the need of rated current frequent operation, or many times break short circuit current places. VS1-12 indoor mounted high voltage vacuum circuit breaker is installed in a fixed type, mainly used in fixed switchgear, the circuit breaker can be used alone, but also for ring network power supply, box type transformer or various non-standard power supply system.
NO. | Project | Unit | Numerical value | ||||
1 | Rated voltage | kV | 12 | ||||
2 | Rated short-time power frequency withstand voltage(1min) | kV | 42 | ||||
3 | Rated lightning shock tolerance voltage (peak) | 75 | |||||
4 | Rated frequency | Hz | 50 | ||||
5 | Rated current | A | 630 1250 | 630 1250 1600 2000 2500 3150 | 1250 1600 2000 2500 3150 4000 | ||
6 | Rated short-circuit breaking current | kA | 20/25 | 31.5 | 40 | ||
7 | Rated short-time withstand current | 20/25 | 31.5 | 40 | |||
8 | Rated short circuit duration | S | 4 | ||||
9 | Rated peak tolerable current | kA | 50/63 | 80 | 100 | ||
10 | Rated short-circuit closing current | 50/63 | 80 | 100 | |||
11 | Secondary circuit power frequency withstand voltage (1min) | V | 2000 | ||||
12 | Rated single/back-to-back capacitor group breaking current | A | 630/400(800/400 for 40kA) | ||||
13 | Rated capacitor bank turn-on inrush current | kA | 12.5(Frequency not more than 100Hz) | ||||
14 | Switching time (rated voltage) | ms | ≤50 | ||||
15 | Closing time (rated voltage) | ≤60 | |||||
16 | Mechanical life | Time | 20000 | ||||
17 | Breaking times of rated current (electrical life) | 20000 | |||||
18 | Number of breaks of rated short circuit current | 50(40kA≤30) | |||||
19 | Kinematic and static contacts allow wear accumulative thickness | mm | 3 | ||||
20 | Rated closing operating voltage | V | AC110/220DC110/220 | ||||
21 | Rated switching operating voltage | ||||||
22 | Rated voltage of energy storage motor | ||||||
23 | Rated power of energy storage motor | W | 70 | ||||
24 | Energy storage time | S | ≤10 | ||||
25 | Contact opening distance | mm | 11±1 | ||||
26 | Overstroke | 3.5±0.5 | |||||
27 | Contact closing bounce time | ms | ≤2(40kA≤3) | ||||
28 | Three - phase switching and closing are different | ≤2 | |||||
29 | Average opening speed | m/s | 1.1±0.2 | ||||
30 | Average closing speed | 0.6±0.2 | |||||
31 | Main circuit resistance (fixed/hand) | μΩ | ≤45/60(630A)≤40/55(1250A) ≤30/50(1600-2000A)≤25/35(More than 2500A) | ||||
32 | Contact closing contact pressure | N | 2000±200(20kA)2400±200(25kA) 3100±200(31.5kA)4250±250(40kA) | ||||
33 | Rated operation sequence | Opening -0.3s(18OS)-Opening and closing 180S-Opening and closing | |||||
\tZhejiang ZheGui Electric Co., Ltd established in 2013. We are located in Zhejiang with convenient transportation access and developed electrical market. We are group of private enterprises that hold the production license issued by the former ministry of energy and ministry mechanical and electrical engineering.
\tThe company has nearly 60 million fixed assets and more than 60 employees, covering 23133 square meters. We are specialized in R&D production of complete swtichgear of high and low voltage equipment such as prefabricated substation, distribution cabinet/box, drawer cabinet, ring network cabinet, inflatable cabinet, etc.
\tWe owns three CNC bending machine, CNC shearing machine, CNC laser cutting machine and a series of advanced production equipment to further optimized the product structure and improve the efficiency of production. After nearly 7 years of development, it has passed ISO 9001-2000 quality system certification. All items produced by our own factory, so our advantages are: reliable quality and reasonable price. Gather world’s energy to delight your business. Its honorable for Zhegui to share your progress, brilliance and success!
\tThe company has nearly 60 million fixed assets and more than 60 employees, covering 23133 square meters. We are specialized in R&D production of complete swtichgear of high and low voltage equipment such as prefabricated substation, distribution cabinet/box, drawer cabinet, ring network cabinet, inflatable cabinet, etc.
\tWe owns three CNC bending machine, CNC shearing machine, CNC laser cutting machine and a series of advanced production equipment to further optimized the product structure and improve the efficiency of production. After nearly 7 years of development, it has passed ISO 9001-2000 quality system certification. All items produced by our own factory, so our advantages are: reliable quality and reasonable price. Gather world’s energy to delight your business. Its honorable for Zhegui to share your progress, brilliance and success!
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