0
vacuum circuit breaker

35kV MV Outdoor Vacuum Circuit Breaker/VCB Switch on Pole with Permanent Mechanism, ZW37-40.5kV

EXZW37-40.5kV
Delivery:
FOB
minimum order:
1 piece
Quantity:
Contact Now
add to cart

1. General description

  EXZW37-40.5 type vacuum circuit breaker is outdoor high voltage switch equipment with rated voltage of 40.5 kV, tri-phase AC 50 Hz. It is mainly used to open and close electric power system load current, overload current and short circuit current. Applicable to substations, industrial and mining enterprises and the urban and rural electric protection and control, especially suitable for frequent operation sites and city network automation distribution networks.

2. Main technical parameter

Item

Unit

Data

Rated voltage

kV

40.5

Rated insulation level Lightning impulse withstand voltage

kV

185

Rated insulation level 1min P.F.withstand voltage

kV

95

Rated current

A

630, 1250, 1600, 2000

Rated short-circuit breaking current

kA

20

25

31.5

Rated short circuit making current (peak)

kA

50

63

80

Rated short-time withstand current

kA

20

25

31.5

Rated peak withstand current

kA

50

63

80

Rated short circuit duration

s

4

Rated operating sequence

O-0.3s-CO-180s-CO

Rated short-circuit current breaking times

time

20

Mechanical life time

time

10000

Rated operation voltage

V

220(DC, AC)

Send Message