serial number

name

unit

Numerical value

rated voltage

kV

twenty-four

rated current

A

2000/2500

rated frequency

HZ

fifty

Short term (1-minute) power frequency withstand voltage

kV

sixty-five

Lightning impulse withstand voltage (peak value)

kV

eighty-five

Rated short-circuit breaking current

kA

forty

Rated peak withstand current

kA

eighty

Rated short-circuit closing current

kA

eighty

Rated short-time withstand current (4 seconds)

kA

thirty-one point five

Rated breaking current of a single capacitor bank

A

Rated back-to-back capacitor bank breaking current

A

Rated short-circuit breaking current breaking times

time

thirty

mechanical life

time

ten thousand

Circuit resistance under rated contact pressure

μΩ

≤15

Contact self closing force

N

200±60

Contact reaction force at rated opening distance

N

300±60

Allowable wear thickness of contacts

mm

three

Gas pressure inside the vacuum arc extinguishing chamber

Pa

≤1.33×10^-3

Quality of the sports section

kg

one point two

contact gap

mm

10±1.0

Average opening speed

m/s

1.2±0.2

Average closing speed

m/s

0.7±0.2

Contact closing bounce time

ms

≤2

Rated contact pressure

N

4200±200

Contact closing and opening at different periods

ms

≤1

Contact rebound amplitude

mm

≤1.5

Contact stroke of contacts

3+^one₀