Rated voltage |
12kV |
Rated current |
630A |
Main bus current |
Incoming cabinet: 630A; Outbound cabinet: 125A |
Rated short-time withstand current |
20kA |
Rated short circuit duration |
4s |
Rated peak tolerable current |
50kA |
Rated short-circuit closing current |
50kA |
Rated active load breaking current |
630A |
Closed-loop breaking current |
630A |
Rated cable charging current |
20kA |
Ground switch rated short-time withstand current |
20kA |
Rated short-circuit duration of the grounding switch |
4(2)S |
Rated peak tolerable current of the switch |
50kA |
Rated short-circuit closing current of the switch |
50kA |
Rated power frequency withstand voltage of 1min |
Phase to phase, relative ground, vacuum load switch break: 42kV
Isolation switch break: 48kV |
Rated lightning shock resistance voltage |
Interphase, relative ground, vacuum load switch break: 75kV Isolation switch break: 85kV |
Mechanical life |
Vacuum load switch: 10000 times Ground switch (knife), isolation switch (to) : 2000 times |
Junction current |
3150A |