Description:
The performance of JN15-12 high-voltage grounding switch complies with GB1985-89 《AC high-voltage isolating switch and grounding switch》 and IEC129 requirements. It is applicable to 12kV and below AC 50Hz power system. It can be used with various types of high-voltage switchgear as grounding. For protection.
Advanced design, reliable technical performance; simple structure, convenient installation and commissioning; fast separation and integration capabilities.
Use conditions:
Altitude does not exceed 1000m; ambient air temperature: upper limit +40 °C: lower limit -10 °C
It is allowed to store and transport at 30 °C; the seismic intensity does not exceed 8 degrees; there is no flammable, explosive, severe dust, chemical corrosion and severe vibration.
Technology:
Project
|
Unit
|
Data
|
Rated voltage
|
KV
|
12
|
Rated short-time withstand current
|
KA
|
31.5
|
Rated short circuit duration
|
S
|
4
|
Rated short circuit closing current
|
KA
|
80
|
Rated peak withstand current
|
KA
|
80
|
Center distance between poles
|
mm
|
150,210,230,250,275
|
Rated insulation level
|
1minPower frequency withstand voltage
|
KV
|
Ground、interphase/inter Pole
|
42/48 75/85
|
Lightning impulse withstand voltage
|
Outline drawing:
Type
|
L
|
E
|
C
|
JN15-12/31.5-210
|
655
|
210
|
516
|
JN15-12/31.5-230
|
710
|
230
|
556
|
JN15-12/31.5-250
|
760
|
250
|
596
|
JN15-12/31.5-275
|
810
|
275
|
646
|