JN15-12/31.5 Indoor high voltage grounding switch

Description:

• Classification Series ：High Voltage Grounding Switch • Product Name ：JN15-12/31.5 Indoor high voltage grounding switch • Product Overview： JN15-12 indoor HV earthing switch is applied to power system of rate voltage 12kV/40.5kV, and AC 50/60Hz. It is suitable for various types HV switchgear for earthing protection...

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Detailed Description

JN15-12 indoor HV Earthing Switch is applied to power system of rate voltage 12kV/40.5kV, and AC 50/60Hz. It is suitable for various types HV Switchgear for earthing protection.

The whole earthing switch consists of chassis, supporting insulator, main axis, main blade, fast spring, fixed and moving contact. Additional electronic display is also available according to the requirement. It conforms to GB1985 AC HV disconnect switch and earth switch, relative standards IEC60129 and passes KEMA test

Environment condition

Ambient temperature: -25℃~+40℃

Altitude: ≤1000m

Relative humidity: monthly average ≤90%; daily average: ≤95%

Earthquake intensity: ≤8 degree

Technical Data

Rated voltage (kV)		12	40.5
Rated short-time withstand current (thermal stability) (kA)		31.5	31.5
Rated short-circuit duration (s)		4	4
Rated short-circuit making current (kA)		80,100,125	80
Rated peak withstand current (dynamic stability) (kA)		80,100,125	80
Central distance between poles (mm)		150,165,210,230,250,000	350,385,460
Rated insulation level	1min.PF withstand voltage (kV)	42/49	95
	Lightning impulse withstand voltage (kV)	75/85	185
Mechanical lift (Times)		2000

Outline & Mounting Dimensions