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VSM-12M-2500-40 Permanent Magnetic Circuit Breaker

VSM-12 Handcart Type 12kV Permanent Magnetic Vacuum Circuit Breaker

Model: VSM-12M-2500-40

Description

The VSM-12 vacuum circuit breaker integrates a permanent magnet operating mechanism and a vacuum interrupter in a front-and-rear configuration. The breaker features a draw-out type design with a fixed arc-extinguishing column (solid sealing poles) and is designed for high reliability and performance in demanding electrical environments.

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Product Detail
Technical Parameters

Product Overview:

The VSM-12 vacuum circuit breaker integrates a permanent magnet operating mechanism and a vacuum interrupter in a front-and-rear configuration. The breaker features a draw-out type design with a fixed arc-extinguishing column (solid sealing poles) and is designed for high reliability and performance in demanding electrical environments.

Key Features:

Permanent Magnet Operating Mechanism: The advanced permanent magnet operating mechanism ensures smooth, reliable operation, minimizing mechanical wear and maximizing performance throughout the breaker’s service life.
Vacuum Interrupter: The vacuum interrupter is housed in a fixed arc-extinguishing column, designed to protect the interrupter from external influences, while ensuring consistent insulation performance and reliability.
Draw-out Type Design: The vacuum circuit breaker adopts a draw-out type structure, making installation, maintenance, and inspection more convenient. This design provides flexibility for users to remove or replace the breaker without disturbing the entire system.
Solid Sealing Poles: The vacuum interrupter is mounted in a solid-sealed arc-extinguishing column, which protects the interrupter from dust accumulation and physical damage. The solid sealing design also enhances durability and ensures stable performance in harsh conditions.
Durability in Harsh Environments: The fixed arc-extinguishing column and vacuum interrupter are designed to perform well in humid, hot, and polluted environments. This structure ensures that the breaker maintains excellent insulation performance, even in adverse conditions.

Applications:

This vacuum circuit breaker is suitable for medium-voltage electrical systems, offering protection and control in power generation, distribution, and industrial facilities. It is particularly effective in environments where dust, humidity, and high pollution levels are common.

Table 1. Technical parameters

No	Item	Unit	Data
1	Rated Voltage	kV	12
2	Rated Current	A	630		1000,1250			1600,2000,2500,3150
3	Rated short circuit breaking current	kA	20	25	20	25	31.5	31.5	40
4	Rated peak withstand current	kA	50	63	50	63	80	80	100
5	Rated short-time withstand current	kA	20	25	20	25	31.5	31.5	40
6	Rated short circuit closing current	kA	25	63	25	63	80	80	100
7	Breaking times of short circuit current	times	50						30
8	Rated operating sequence		O-0.3s-CO-180s-CO,O-180s-CO-180s-CO(40kA)
9	Mechanical life	times	30000(small current) 20000(heavy current)
10	Breaking times of rated current	times	30000(small current) 20000(heavy current)
11	Rated lightning impulse withstand voltage (full wave)	kV	75
12	Rated short-time power frequency withstand voltage	kV/min	42

Table 2.Parameters of circuit breakers with capacitors

No	Item	Unit	Data
1	Travel of the contact	mm	11±1
2	Over-travel of the contact	mm	3.5±0.5
3	Closing speed	m/s	0.6±0.2
4	Opening speed	m/s	1.1±0.3
5	Contact closing bounce time	ms	≤2,≤3(40kA)
6	Three-phase contact closing and opening synchronization	ms	≤2
7	Closing time	ms	≤22
8	Opening time	ms	≤20
9	Energy storage loop supply voltage	V	110,220
10	Energy storage loop current	A	≤0.5(Before the capacitor is full),≤0.01(After the capacitor is full)
11	Energy storage time	s	≤10,First charge time≥30
12	Closing control voltage	V	110,220
13	Opening control voltage	V	110,220
14	Closing control current	A	0.2
15	Opening control current	A	0.2
16	Main loop resistance	μΩ	≤60(630A),≤45(1250A),≤30(2000A above)
17	Phase distance	mm	210,275(40kA)

Table 3.Parameters of circuit breakers with capacitors

No	Item	Unit	Data
1	Travel of the contact	mm	11±1
2	Over-travel of the contact	mm	3.5±0.5
3	Closing speed	m/s	0.6±0.2
4	Opening speed	m/s	1.1±0.3
5	Contact closing bounce time	ms	≤2,≤3(40kA)
6	Three-phase contact closing and opening synchronization	ms	≤2
7	Closing time	ms	≤75
8	Opening time	ms	≤65
9	Energy storage loop supply voltage	V	DC220-DC240V(From DC screen)
10	Energy storage circuit closing current	A	35<I<55(Small current)
11	Energy storage circuit opening current	A	10<I<20
12	Energy storage circuit closing time	ms	≤60
13	Energy storage circuit opening time	ms	≤25
14	Closing control voltage	V	110,220
15	Opening control voltage	V	110,220
16	Closing control current	A	0.2
17	Opening control current	A	0.2
18	Main loop resistance	μΩ	≤60(630A),≤45(1250A),≤30(2000A the above)
19	Phase distance	mm	210,275(40kA)