GN22-12(C) Indoor high-voltage isolating switch

Описание:

• Classification Series: High-Voltage Disconnector • Product Name: GN22-12(C) Indoor High-Voltage Disconnector • Product Overview: The GN22-12 High-Voltage Disconnector is designed for three-phase AC systems with a frequency of 50Hz and a rated voltage of 12KV, intended for indoor installations. It is used to make, break, or transfer circuits in high-voltage equipment under energized (voltage-present) but no-load conditions.

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подробность

Introduce

GN22-12 Disconnect switch is an indoor electric apparatus of rated voltage 12kV three-phase AC 50160Hz.it is used to break,make and transfer lines when the HV apparatus is under situations with voltage and no-load.

Ambient condition

1、Altitude:≤1000m。

2、Ambient temperature:-25°C~+40℃。

3、Relative humidity:daily average S95%,monthly average ≤90%。

4、Steam pressure:daily average ≤2.2*10-3MPa,monthly average ≤1.8*10-3Mpa

5、Applicable occasions should free from inflammables,explosives.corrosives and severe vibralion。

Model implication

Technical specification

Item		Units	Parameters
Rated voltage		KV	12
Rated frequency		Hz	50
Rated current		A	1600-2000	2500-3150
Rated short-circuit resistance current		KA	40	50
Rated peak withstand current		KA	100	125
Rated short-circuit duration		S	4
Rated nsulating level	1min.PF withstand voltage	KV	Phase to phase/to earth:42,across open contacts:49

	Lightning impulse withstand voltage(peak)	KV	Phase to phase/to earth:75,across open contacts:85

0verall dimension