JN15A-12/31.5 Indoor AC high voltage grounding switches

Application

JN15A-12/31.5 indoor AC high voltage grounding switches is an advanced level product with high-tech parameters performance. After comprehensive evaluation, it conforms to GB1985 and IEC62271 standard, applies to power system of 3-12kV and three-phase AC 50Hz. It owns short-circuit making capacity to protect other electric equipment not being damaged. Can be used with various high voltage switchgear, also play a protective role in the high voltage electrical equipment overhaul.

Earthing switches are intended to use for the MV switchgears or in MV switching stations.

There shall have no conductive dust, no corrosive gasess, no severe vobaration and impact. no combustion and explosion on the site for switch operating.

Specifications

Ambient condition:

Ambient temperature scope: form -10°C to 40°C
Altitude not more than 1000m
Relative humidity: average everday not exceeding 95%

Monthly average not more than 80%

Pollution level: II

Parameter

Item		Unit	Data
Rated voltage		KV	12
Rated short-time withstand current		KA	31.5
Rated short-circuit duration		S	4
Rated short-circuit current		KA	80
Rated peak withstand current		KA	80
Rated insulation level	Rated short-time power frequency withstand voltage	KV	Phase to earth	42
	Rated lightning impulse withstand voltage	KV	Phase to phase	75
Mechanical life		Time	2000

Drawing

Product Model	A	B	C
JN15A-12/31.5-150	150	396	535
JN15A-12/31.5-165	165	426	565
JN15A-12/31.5-210	210	516	655
JN15A-12/31.5-230	230	556	710
JN15A-12/31.5-275	275	646	810

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