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11kv Switchgear Circuit Breaker 12kv 630a VS1 Embedded ZN63

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11kv Switchgear Circuit Breaker 12kv 630a VS1 Embedded ZN63

Country/Region	china
City & Province	zhejiang
Categories	Battery Chargers

Product Details

ZN63 11kv 12kv 630a VS1 VCB Embedded Switchgear Vacuum Circuit Breakers

Description:

VCB-12 series solid-sealed indoor vacuum circuit breaker is an indoor high-voltage switchgear for three-phase power system with rated voltage of 12 kV and frequency of 50 Hz. It is used as protection and control appliance due to vacuum circuit breaker. The special advantages are especially suitable for frequent operations requiring rated current or multiple short-circuit currents.

VCB-12 series solid-sealed indoor vacuum circuit breakers are fixedly mounted, mainly used for fixed switchgear. The circuit breaker can be used alone or in ring power supply, box transformer or various non- power supply system.VCB-12 series solid-sealed indoor vacuum circuit breaker is an indoor high-voltage switchgear for three-phase power system with rated voltage of 12 kV and frequency of 50 Hz. It is used as protection and control appliance due to vacuum circuit breaker. The special advantages are especially suitable for frequent operations requiring rated current or multiple short-circuit currents.

NO	Item	Unit	Technical parameters
1	Rated voltage	KV	12
2	Rated short-duration power frequency withstand voltage	KV	42/48(Interphase, ground/fracture)
3	Rated lightning impulse withstand voltage	KV	42/48(Interphase, ground/fracture)
4	Rated frequency	HZ	50
5	Rated current	A	630 1250	630 1250 1600 2000 2500 3150	630 1250 1600 2000 2500 3150
6	Rated short-circuit breaking current	KA	20/25	31.5	40
7	Rated short-time withstand voltage	KV	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	Secondary circuit power frequency withstand voltage (1min)		2000
12	Rated single / back to back capacitor group breaking current	A	630/400(40kA:800/400)
13	Rated capacitor bank closing current	KA	12.5 (frequency is not greater than)
14	Mechanical life		20000
15	Rated current breaking times (electrical life)		20000
16	Rated short circuit current breaking times	TIMES	50(40KA≤30)
17	Dynamic and static contacts allow wear cumulative thickness	MM	3
18	Energy storage time	S	≤10
19	Contact opening distance	MM	11±1
20	Overtravel		3.5±0.5
21	Contact closing bounce time	MS	≤2(40KA≤3)
22	Three-phase split/closed period		≤2
23	Average opening speed (contacts are separated by -8mm)	M/S	1.2±0.2
24	Main conductive loop resistance	μΩ	≤50(630A)≤45(1250A) ≤40 (1600,2000A)≤35 (2500A or more)
25	Rated operation sequence		0-0.3s-Co-180s-Co