General
The gas insulated switchgear designed for installation in transformer substation, industrial plants, and infrastructure & complies the most stringent requirement of
Safety in operation
Staff safety
Operation reliability
Smaller footprints
Reduced maintenance work
This switchgear conforms to IEC 62271-200 and all primary components employed therein are in accordance with the relevant standards.
It is designed to accommodate high performance vacuum circuitbreaker (VCB) which has been designed and tested in accordance with IEC62271-100.
The switchgear panels are suitable for the assembly of single &double busbar systems for indoor installation.
Features:-
1. Reliable
Each compartment is monitored individually &has its own pressure relief device.
Use of Vacuum circuit breakers with high number ofmechanical & electrical operations
Robust interlocking system
2. Safety
The primary side components are hermetically enclosed, gas filled compartment and thus insensitiveto atmosphere, dirt &dust.
Current transformer are mounted outside the gas compartment & mounted on earthed LV compartment
3. Space saving
Smaller foot prints. All operations on the switchgear front
4. Economically efficient
Reduced space & surface area requirement.
Long service life
Maintenance free Gas compartment
Technical Data

S/N	Item	Unit	Data
1	Rated voltage	kV	12
2	Rated current	A	630 1250 2000 2500
3	Rated frequency	Hz	50/60
4	Rated power frequenecy withstand voltage (1 min)
5	Phase to phase, phase to earth	kV	45
6	Between clearance	kV	48
7	Rated ligtning impulse withstand voltage
8	Phase to phase, phase to earth	kV	75
9	Between clearance	kV	85
10	Power frequency withstand voltage of auxiliary control circuit (1 min)	V	2000
11	Rated short-cricuit breaking current (rms)	kA	20 25 31.5
12	Rated short-circuti making current	kA	63 80 100
13	Rated short time withstand current	kA/s	25/4 31.5/4 40/4
14	Rated peak withstand current	kA	63 80 100
15	Degree of protection		Gas-filled compartment : IP67 LV compartment: IP4X
16	Every phase amin return circuit resistance	uΩ	<250
17	Rated SF6 gas pressure (20oC)	Mpa	0.045
18	Min SF6 gas pressure (20oC)	Mpa	0.03
19	Annual SF6 gas loss rate	%	<1
20	Rated voltage of auxiliary control circuit	V	DC 110/220 AC 220
21	Dimensions (WxDxH)	mm	500x1000x1850