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Item

Unit

Specification

Rate voltage

kV

40.5

Rate current

A

1250/1600

Rate frequency

Hz

50 & 60

Power frequency withstand voltage (dry) (wet),ground/fracture

kV

80 95/95

Lightning impulse withstand current (peak) phase to phase,ground/fracture

kV

185

Rated short-circuit breaking current

kA

25/31.5

Rated short-circuit making current (peak)

kA

63/80

Rated peak withstand current

kA

63/80

Short-time withstand current,4S

kA

25/31.5

Rated operating cycle

O-0.1s -CO-3s -CO-6s CO-60s Recover

Rated short-circuit current breaking times

times

30

Mechanical life

times

10000

Mechanism control voltage

V

AC/DC220

Power frequency withstand voltage of secondary circuit (1min )

kV

2

Item

Unit

Specification

Contact stroke

mm

16±1

Contact over-travel

mm

4±0.5

Opening speed

m/s

1.4-1.8

Closing speed

m/s

0.4-0.8

Contact closing bouncing duration

ms

≤5

Center distance between phases

mm

460±2

Opening/Closing synchronism between poles

ms

≤2

Conductive loop resistance of each phase

μΩ

< 80

Closing time

ms

≤100

Opening time

ms

≤50

Weight

Kg

270