JN22-35 Indoor high voltage grounding switch

Description:

• Classification Series ：High Voltage Grounding Switch • Product Name ：JN22B-40.5/31.5 Indoor high voltage grounding switch • Product Overview： JN22B-40.5/31.5 indoor high voltage grounding switch is a new product developed by the company. Its performance meets the requirements of national standard GB1985-2004 "AC high-voltage disconnector and earthing switch" and IEC62271-102:2002...

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Detailed Description

JN22-35 Indoor HV Earthing Switch is used for 3 phase rated voltage 40.5kV, AC 50Hz power system , High Voltage switchgear with KYN61-405, high voltage electrical equipment maintenance as the use of ground fault protection. The switch conforms to the national standard GB1985-2004 " AC high voltage disconnectors and earthing switches" and IEC62271-102.

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)		35
Max. voltage (kV)		40.5
Rated short-time withstand current(thermal stability) (kA)		31.5
Rated short-circuit duration (s)		4
Rated short-circuit making current (kA)		80
Rated peak withstand current (dynamic stability) (kA)		80
Inter-pole center distance (mm)		350, 400
Rated insulation level	1min.PF withstand voltage (kV)	95
	Lightning impulse withstand voltage (kV)	185

Outline & Mounting Dimensions