VD 9-12 Indoor Permanent Magnetic Vacuum Circuit Breaker

Short Description:

Specification:1000-1200 USD/PIECEUse Parts:10 PIECESupply Ability:1000 PIECE Payment Terms:TT , LC , Others Tags:

Product Detail

Product Tags

DetailSpecification：1000-1200 USD/PIECEUse Parts：1 PIECESupply Ability：1000 PIECEPort：Ningbo or ShanghaiPayment Terms：TT , LC , OthersPlace of Origin：Hang Zhou,China

VD9-12 Indoor Permanent Magnetic Vacuum Circuit Breaker

VD9-12 type indoor permanent magnetic vacuum circuit breaker is main switchgear to control and protect distribution system of network industrial enterprises, our patented CDY permanent magnetic operating mechanism is cooperated with breaker, and direct driving system makes this type of breaker more excellent, specially suitable for frequently switching, or breaking short circuit for many times.A special carries provided for breaker, forms carrier type breaker system.

Main Technical Parameters

Item	Description	Unit	Data
1	Rated voltage	KV	12
2	1min Power frequency withstand voltage		42
3	Lightning impulse withstand voltage(peak)		75
4	Rated frequency	Hz	50
5	Rated current	A	630 1250	630 1600 2500	1250 2000 3150
6	Rated short circuit breaking current	KA	20	25	31.5	40
7	Rated short circuit withstand current		20	25	31.5	40
8	Duration of rated short circuit current	S	4
9	Rated peak withstand current	KA	50	63	80	100
10	Rated short circuit making current		50	63	80	100
11	1min Power frequency withstand voltage on secondary circuit	V	2000
12	Rated single/back capacitor bank breaking current	A	630/400(40KA:800/400)
13	Rated capacitor bank making current	KA	12.5
14	Opening time	ms	≤50
15	Closing time		≤70
16	Mechanical life	time	30000
17	Nos of breaking rated current		30000
18	Nos of breaking rated short circuit breaking current		50
19	Permissible abraded thickness of moving, static contacts	mm	3
20	Opening distance of contact		9±1(1600A:11±1)
21	Over travelling distance contact		3.5±0.5
22	Jumping time of contact at closing	ms	≤2(40KA≤3)
23	Asynchrony of three phase opening, closing		≤2
24	Average opening speed	m/s	0.9～1.2
25	Average closing speed		0.5～0.8
26	Rebound height of contact opening	mm	0
27	Ressistance of main circuit	μΩ	≤40(Below1250A)
			≤35(1600～2000A)≤25(Over2500)
28	Contacting pressure at closing contact	N	2000±200(20KA)2400±200(25KA)
			3100±200(31.5KA)4300±200(40KA)
29	Rated operating sequence		off-0.3S-on/off-180s-on/off