Product Main

Specifications

Vacuum Tube main techincal parameter

 

Parameter name

Unit

Value

Rated voltage

kV

12

Rated normal current

A

2000

Rated frequency

Hz

50

Rated short-circuit breaking current

kA

31.5,40

Rated short-circuit making current

kA

80,100

Rated peak withstand current

KA

80,100

Rated short-time withstand current

kA

31.540

Rated short-circuit continuous time

S

4

Rated single capacitor unit breaking current

A

630

Rated back to back capacitor unit breaking current

A

400

Rated short-time (1 min) frequency withstand voltage

kV

42

Rated contact pressure time-limit loop resistive

μΩ

≤25

Rated short-circuit breaking current breaking times

30

Rated lightning impulse withstand voltage

V

75

Mechanical life

10000

Contact automatic

N

120±50

Force required to hold contacts open at full stroke

N

200±50

Contact-wear allowance thickness

mm

3

Internal gas pressure

Pa

≤1.33×10-3

Shelf life

20

Vacuum Tube main techincal parameter

 

Parameter name

Unit

Value

Rated voltage

kV

12

Rated normal current

A

2000

Rated frequency

Hz

50

Rated short-circuit breaking current

kA

31.5,40

Rated short-circuit making current

kA

80,100

Rated peak withstand current

KA

80,100

Rated short-time withstand current

kA

31.540

Rated short-circuit continuous time

S

4

Rated single capacitor unit breaking current

A

630

Rated back to back capacitor unit breaking current

A

400

Rated short-time (1 min) frequency withstand voltage

kV

42

Rated contact pressure time-limit loop resistive

μΩ

≤25

Rated short-circuit breaking current breaking times

30

Rated lightning impulse withstand voltage

V

75

Mechanical life

10000

Contact automatic

N

120±50

Force required to hold contacts open at full stroke

N

200±50

Contact-wear allowance thickness

mm

3

Internal gas pressure

Pa

≤1.33×10-3

Shelf life

20