Type Vs1-12 Indoor High-Voltage Vacuum Circuit Breaker

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Energy-storage Type
• Model NO.: VS1-12
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Open Frame
• Structure: Vcb
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker
• Certification: VDE
• Rated Voltage: 12kv
• Rated Current: 630A
• Rated Frequency: 50Hz
• Transport Package: Carton for Export
• Trademark: China Brand
• Origin: China

Product Description

Product Description

VS1 (ZN63A)-12 Indoor High Voltage Vacuum Circuit Breaker (hereinafter referred to as Circuit Breaker) is an indoor switchgear used in 12kV power system,
As the protection and control unit of power grid equipment and power equipment of industrial and mining enterprises, it is used as a control and protection unit for cables, overhead lines, distribution stations, and power distribution stations in the power distribution system.
Equipment such as motors, transformers, generators, and capacitors. The VS1 circuit breaker is mainly used to divide short-circuit currents and switch various loads (if on-load or
Overhead lines and cables, transformers and generators, motors, harmonic control systems, and even shunt capacitors under no load).
The circuit breaker has excellent performance in applications where frequent operation and/or short-circuit currents need to be interrupted, and it is fully charged
It meets the requirements of automatic reclosing and has a high level of operational reliability and service life.
The circuit breaker can be fixed and installed in the switch cabinet, and can also be equipped with a special propulsion mechanism for handcarts to form a handcart type.

Detailed Photos

Conditions of normal use

a) Ambient temperature
Maximum temperature			+ 40 ºC
Maximum temperature (24-hour average)			+ 35 ºC
Minimum temperature			- 15 ºC
Diurnal temperature differences			< 15K
b) Humidity
Daily average relative humidity			≤ 95%
Daily average water vapor pressure			≤ 2.2 × 10 - 3 MPa;
Monthly average relative humidity			≤ 90%
Average monthly water vapor pressure			≤ 1.8 × 10 - 3 MPa
c) Altitude			≤ 1000m
d) Seismic intensity			No more than 8 degrees
e) There is no dripping water, no flammable and explosive hazard, no chemical corrosive gas and no violent vibration in the place of use.

Specification

Serial number	Projects			unit	Value
1	Rated voltage			kV	12
2	Rated short-time power frequency withstand voltage (1min)				42 / 48(fracture)
3	Rated lightning impulse withstand voltage (peak)				75 / 85(fracture)
4	Rated frequency			Hz	50
5	Current rating			A	630 ~ 4000
6	Rated short-circuit interrupting current			kA	20 ,25 ,31.5 ,40
7	Rated short-time withstand current			kA	20 ,25 ,31.5 ,40
8	Rated short-circuit duration			s	4
9	Rated peak withstand current			kA	50 ,63 ,80 ,100
10	Rated short-circuit closing current			kA	50 ,63 ,80 ,100
11	Power frequency withstand voltage of secondary circuit (1min)			V	2000
12	Rated single/back-to-back capacitor bank breaking current			A	630 / 400    ( ≤ 31.5kA)     800 / 400    (40kA)
13	The rated capacitor bank closes the inrush current			kA	12.5
14	Opening time (rated voltage)			ms	20 ~ 50
15	Closing time (rated voltage)			ms	35 ~ 70
16	Mechanical life			time	20000
17	The number of times the rated current is interrupted				20000
18	Rated number of short-circuit current interruptions				50  ( ≤ 31.5kA)     30(40kA)
19	Dynamic and static contacts allow for wear and cumulative thickness			mm	3
20	Rated closing and opening operating voltage			V	AC110 / 220       DC110 / 220
21	Rated voltage of energy storage motor			V	AC110 / 220       DC110 / 220
22	Rated power of energy storage motor			W	80
23	Energy storage time			s	≤ 15
24	Contact opening distance			mm	11 ± 1
25	Contact stroke			mm	3.1 ±0.3  ( ≤ 31.5kA)     3.5 ±0.5(40kA)
26	Contact closing bounce time			ms	≤ 2
27	Three-phase splitting and closing, different periods			ms	≤ 2
28	Average opening speed			m / s	0.9 ~ 1.5
29	Average closing speed			m / s	0.5 ~ 1.0
30	Dominant electrical loop resistance			μΩ	≤ 60   (630A)     ≤ 45   (1250A)     ≤ 35   ( 1600A ~ 2000A)     ≤ 25   (2500A )
31	Rated sequence of operations			/	opening -0.3s- Combined -180s- Combined