The complete set of column-mounted switch equipment has adaptive and comprehensive local feeder automation functions, independent of the automation master station and communication. Through control logic such as short circuit/ground fault detection technology, voltage free opening, and fault path adaptive delayed incoming and closing, it adapts to the multi-branch and multi-contact distribution network structure, so as to achieve on-site line selection, regional positioning and isolation of single-phase ground faults.
|
No.
|
item
|
unit
|
parameter
|
|
1
|
Rate voltage
|
kV
|
12
|
|
2
|
Rate current
|
A
|
630, 1000
|
|
3
|
Rate frequency
|
Hz
|
50
|
|
4
|
Rate short-circuit breaking current
|
kA
|
20
|
|
5
|
Rate peak withstand current
|
kA
|
50
|
|
6
|
Rate short-time withstand current
|
kA
|
20
|
|
7
|
Rate short-circuit closing current
|
kA
|
50
|
|
8
|
Mechanical life
|
times
|
10000
|
|
9
|
Times of rate short-circuit breaking current
|
times
|
30
|
|
10
|
Power frequency withstand voltage(1 min): phase-phase, to earth, isolating fracture
|
kV
|
42/48
|
|
11
|
Lightning surge peak withstand voltage: phase-phase, to earth, isolating fracture
|
kV
|
75/85
|
|
12
|
Secondary circuit(1min) withstand voltage
|
kV
|
2
|