VD 9-12 Indoor Permanent Magnetic Vacuum Circuit Breaker

Short Description:

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


Product Detail

Product Tags

Specification: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

Note: Please contact the factory to confirm the latest parameters

Outline and installation dimension

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