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exelek indoor vacuum circuit breakers

10kV MV Indoor Vacuum Circuit Breaker/VCB for Switchgear, VAC83-12kV

EXC83-12kV (Side Installation)
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FOB
minimum order:
1 piece
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1. General description

    EXC83-12kV series of indoor  vacuum circuit breaker with lateral operating mechanism used spring to storage energy. The operating mechanism can be operated by two ways: by manual and electromotive operation. The characteristics is accordance with IEC standard 62271-1 00:2001 M.V. AC circuit breaker, JB3855-1996 3.6-4.5kV Indoor AC M.V. circuit breaker and GB1984-2003 M.V. AC circuit breaker.

2. Main technical parameter

Item

Unit

Data

Rated voltage

kV

12

Rated power frequency withstand voltage

kV

42

Rated lightning impulse withstand voltage

kV

75

Rated frequency

Hz

50

Rated current

A

630, 1250, 1600

Rated short circuit breaking current

kA

20, 25, 31.5, 40

Rated peak withstand current

kA

50, 63, 80, 100

Conductive circuit resistance of each phase

μΩ

≤40, ≤50

Clearance between open contacts

mm

11±1

Overtravel

mm

3±0.5

Contact bouncing duration at closing opening

ms

≤2

Out of simultaneity of CO operation of three poles

ms

≤2

Opening time

ms

≤50

Closing time

ms

≤100

Average opening speed

m/s

0.9~1.3

Average closing speed

m/s

0.4~0.8

D.C component

%

50

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