Parameter name

Unit Unit

Numerical Value

Rated voltage

kV

forty point five

Rated normal current

A

one thousand two hundred and fifty

Rated short-circuit breaking current
Rated short-circuit breaking current

kA

twenty-five

Rated short circuit making current

kA

fifty

Rated peak withstand current

kA

fifty

Rated short-time withstand current

kA

twenty-five

Rated duration of short circuit

S

four

Rated breaking current of a single capacitor bank
Rated single capacitor unit breaking current

A

six hundred and thirty

Rated back-to-back capacitor bank breaking current
Rated back to back capacitor unit breaking current

A

four hundred

Rated short-time (1min) power frequency withstand voltage
Rated short time power frequency withstand voltage (1min)

kV

ninety-five

Circuit resistance under rated contact pressure
Circuit resistance at lower limit of rated contact pressure

μΩ

≤30

Rated short-circuit breaking current breaking times
Rated short circuit breaking current breaking times

time

Time

twenty

Rated lightning impulse withstand voltage
Rated lightning impulse withstand voltage

kV

one hundred and eighty-five

Mechanical endurance

Next Time

ten thousand

Contact self closing force
Closing force due to bellow and atmosphere

N

250±50

Contact reaction force at rated opening distance
Force required to hold contacts open at full stroke

N

330±60

Contact wear allowance thickness

mm

three

Internal gas pressure

Pa

≤1.33×10ˉ^three

Allow storage period

Year of Year

twenty

Project

Unit Unit

Numerical Value

Contact stroke distance

mm

22±2

Contact travel

mm

8±2

Average closing speed

m/s

0.6±0.2

Average opening speed

m/s

1.4±0.2

Rated contact pressure

N

2900±300

Contact closing bounce time

ms

≤2

Non synchronous closing and opening of contacts
Out of simultaneity of contact closing and opening

ms

≤2