GW9-12/40.5 Outdoor Medium Voltage Disconnector
This series of outdoor medium-voltage isolating switches is designed for single-phase AC 50Hz medium-voltage switchgear, used in power systems with a rated voltage of 10kV, to connect or isolate the power supply under no-load conditions. The isolating switch is operated using an insulated rod.
The three-phase structure is simple, economical, and user-friendly.
This product features a single-break vertical opening structure. The single-pole isolating switch is mounted on its respective base, consisting mainly of a base, post insulator, main conductive circuit part, and self-locking device.
It use a knife switch structure to achieve disconnection and reconnection of the circuit. Each phase's knife switch is composed of two conductive blades, with compression springs mounted on both sides of the blades. By adjusting the height of the springs, the required contact pressure for the switch knife can be achieved.
The switch operation is performed using an insulated hook rod mechanism, and the knife switch has a self-locking device.
|
Tech. parameters |
Unit |
Parameters |
|||||||
|
Rated voltage |
KV |
10 |
15 |
35 |
|||||
|
Maximum operating voltage |
KV |
12 |
17.5 |
40.5 |
|||||
|
Rated insulation level |
1min power frequency withstand
Voltage (effective value)
|
to the ground |
KV |
42 |
55 |
95 |
|||
|
fracture |
KV |
48 |
65 |
118 |
|||||
|
Lightning impulse withstand voltage
(Peak)
|
to the ground |
KV |
75 |
105 |
185 |
||||
|
fracture |
KV |
85 |
120 |
215 |
|||||
|
Rated frequency |
Hz |
50 |
|||||||
|
Rated current |
A |
200 |
400 |
630 |
1250 |
630 |
1250 |
||
|
4S short-circuit withstand current |
KA |
6.3 |
12.5 |
20 |
31.5 |
20 |
31.5 |
||
|
Rated peak withstand current |
KA |
16 |
31.5 |
50 |
80 |
50 |
80 |
||
|
Mechanical life |
Times |
3000 |
3000 |
3000 |
|||||
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Tel：+86 15538537280
Email：lycnelectric@163.com
Add：No. 9 Duyu Street, Luolong District, Luoyang City, Henan Province
