GN19-12 Indoor High Voltage Disconnector

GN19-12 series indoor high-voltage Disconnector is used in power systems with rated voltage of 12 kV, AC 50 Hz and below. It is equipped with CS6-1 operating mechanism to open and close circuits when there is voltage but no load. Model and meaning Main structural features Structural form: It...

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Product Introduction

GN19-12 indoor high-voltage isolating switch is a high- -voltage switchgear for power systems with rated voltage of 12KV and AC 50HZ and below, with CS6-1 type manual operating mechanism. It can be used as opening and closing circuit when there is voltage without load. There are also derivative products, like anti-fouling type, high prototype and retro charging display device, etc. This series of disconnector is a three- -stage type, which consists of an under frame, a rotating shaft, and a lever, a porcelain post insulator, a knife switch and a wiring board. The rotating shaft is arranged on the under frame, and three pairs of levers are welded thereon, and the lever is connected to the knife switch through the pull rod porcelain insulator. The shaft extends out of the under frame and any of its sections can be connected to the operating mechanism. Type C is through-the- -wall mode.Where C1 indicates that the rotation is on the wall side; C2 indicates that the breaking is on the wall side; C3 indicates that both sides are on the wall side.

Model and meaning

product-1-1

Main structural features

Structural form:

It consists of a base, a support insulator, a conductive knife switch (moving/static contact), an operating mechanism, etc.

The knife switch is usually a single-pole or double-pole structure, and a clearly visible disconnection point is formed after the switch is opened.

Insulation performance:

High-strength porcelain insulators or silicone rubber insulation materials are used to ensure electrical isolation reliability.

Operation mode:

Manual operation (common lever or rotary mechanism), some models can be equipped with electric operating mechanism.

Normal use environment

◇ Altitude not exceeding 1000m;
◇ Ambient air temperature: -25℃~+40℃;
◇ Ambient relative humidity: daily average value not greater than 95%, daily average value not greater than 90%;

◇ Earthquake intensity not exceeding 8 degrees;
◇ Installation location: no fire, flammable, explosive, severely dirty, chemically corrosive and violently vibrating place.

Technical parameters

No.	Item		Unit	Data
1	Rated voltage		KV	12
2	1min power frequency withstand voltage (effective value)	To ground	KV	42
		Fracturing	KV	48
3	Lightning impulse withstand voltage (peak value)	To ground	KV	75
		Fracturing	KV	85
4	Rated frequency		Hz	50
5	Rated current		A	400		630		1000		1250
6	Rated short-time withstand current		KA	16	20	16	20	25	20	25	31.5
7	Rated peak withstand current		KA	40	50	40	50	63	50	63	80
8	Rated short-time withstand current duration main knife switch/ground knife switch		S	4/2
9	Creepage distance		mm	300~800
10	Mechanical life		times	2000

Appearance and installation dimensions

product-967-609

Contact Us

If you need to know more about the detailed information, technical parameters, quotation or purchase of GN19-12 indoor high-voltage disconnector, you can contact us at:pannie@hdswitchgear.com.