Gn30-12 Porcelain Isolating Switch

Prod Model:	GN30-12
Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Pole:	3
Function:	Protect Package Substation and Transformer
Rated Continuous Current:	630

Product Description

Gn30-12 Porcelain Isolating Switch
Specifications
1. Rated voltage: 10KV
2. Frequency: 50Hz
3. Function: Compact, small footprint, strong insulating ability, easy to install
Application
GN30-12 type rotary indoor high voltage isolating switch is a new type of touch rotating knife type isolating switch,
The main structure in three-phase chassis of the upper and lower two plane, fixed two set of insulator and contact,
By rotating contactor, so as to realize the switch of switching.
GN30-12D type switch is on the basis of GN30-12 switch increases with the form of earthing knife, can meet the
Needs of different power systems. This product design is compact, small footprint, insulating ability is strong, easy
To install, the performance meet GB198589 "ac high voltage isolating switch and earth switch" requirements,
Applicable to rated voltage 10 KV AC 50 HZ and the following indoor systems, as in the cases with voltage without
Load, for opening and closing current. Can be used with high voltage switch cabinet, and also can be used alone.
The use of environmental conditions
1. No more than altitude of 1000 meters.
2. Ambient air temperature: From -25° C to +40° C.
3. Air relative humidity: Daily average no greater than 95%; Monthly average no greater than 90%.
4. Amplitude: Seismic intensity not exceed degree 8.
5. Installation place: No fire, explosion, chemical corrosion and sharp shakes.
Type and meaning


Main technical parameter

Outline and mounting size

Number	Name	Unit	Parameter
1	Rated voltage	KV	12
2	Rated frequency	Hz	50
3	Rated current	A	630
4	Rated closed switch-off current	A	630
5	Rated power load switch-off current	A	630
6	5% rated power load switch-off current	A	31.5
7	Rated cable charging switch-off current	A	10
8	Rated no-load transformer switch-off current		1250KVA Transformer no-load current
9	Rated short-circuit controlly current	KA	50
10	Rated short-circuit peak withstand current	KA	50
11	4S rated heat-circuit peak withstand current	KA	20
12	Rated transfer current	A	3150
13	1min power frequency withstand voltage	KA	42
14	Lighting impulse resisting voltage(peak)	KA	75
15	Mechanical lifes	time	1000
Technical parameter
Number	Name	Unit	Parameter
1	Contact distance	mm	8+1
2	Contact ultra travel	mm	3±1
3	Three-phase on-an-off not the same period	ms	≤2
4	Switch-on contact jump time	ms	≤2
5	Switch-on speed	m/s	0.6±0.2
6	Switch-off speed	m/s	1±0.2
7	Main circuit resistance	μΩ	<150
8	Switch-off time	s	>0.06
9	Interphase distance	mm	210±0.2