vacuum interrupter main technique parameter
|
Parameter name |
Unit |
Value |
|
Rated voltage |
kV |
12 |
|
Rated normal current |
A |
1250 1600 |
|
Rated frequency |
Hz |
50 |
|
Rated short-circuit breaking current |
kA |
31.5 |
|
Rated short-circuit making current |
kA |
80 |
|
Rated peak withstand current |
kA |
80 |
|
Rated short-time withstand current |
kA |
31.5 |
|
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 |
≤11 |
|
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 |