VSM-12 Liyond High Quality Handcart Type Permanent Magnet Mechanism Vacuum Circuit Breaker

The permanent magnet operating mechanism and the vacuum interrupter of the VSM-12M vacuum circuit breaker adopt front and rear arrangement. The main conductive circuit is a floor-standing structure. The upper and lower outlet seats and the vacuum interrupter are installed in an embedded pole Inside. The embedded pole is made of epoxy resin by APG process.This structure can prevent dust accumulation on the surface of the vacuum arcing chamber and prevent it from being damaged by external factors. It can ensure that the product still has good insulation performance in the humid and hot environment and serious pollution.

Permanent magnet vacuum circuit breaker for indoor installation, air insulation, used to open and close various of different type of power load,Applicable to the construction and renovation of power grids such as urban nets, rural nets, mines and railways, especially the products absorb advanced technology and technology at home and abroad, with intelligent, high reliability, long life, maintenance-free and other characteristics. No pollution to the surrounding environment when used and it’s a green product.

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VSM-12 Liyond High Quality Handcart Type Permanent Magnet Mechanism Vacuum Circuit Breaker

Electrical Products

Technical Parameters
Dimensions

Technical parameter of VSM-12 Permanent Magnet Mechanism Vacuum Circuit Breaker

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	Specification
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	Specification
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)