Our CGIS series products use SF6 gas or environmentally friendly gas as the insulating medium, with current levels covering 1250A~3150A. They are specially designed for primary power distribution applications and have the characteristics of high safety, reliability, miniaturization and maintenance-free.
Category nameGas insulated metal enclosed switchgearClassificationJ10X | RMU inflatable ring main unit J20X | C-GIS inflatable cabinet J30X | GIS inflatable cabinet (72.5kV)
Product featuresC-GIS, box-type micro-positive pressure gas-insulated metal-enclosed switchgear; has the characteristics of high safety, reliability, miniaturization and maintenance-free; it is used in primary power distribution, substations, and rail transit; it is widely used in 12~40.5kV primary boost/step-down transformers and rail transit substationsTechnical parametersRated voltage: GMU-12 is 12kV; GMU-40.5 is 40.5kV; rated frequency: 50, 60Hz; power frequency withstand voltage (phase to phase, ground/fracture): GMU-12 is 42/48kV; G MU-40.5 is 95/118kV; lightning impulse withstand voltage (phase to phase, ground/fracture): GMU-12 is 75/85kV; GMU-40.5 is 185/215kV; rated current: GMU-1 2 is 1250A, 3150A; GMU-40.5 is 1250A, 2500A, 3150A; rated short-time withstand (current/time): 31.5/4, 40/4kA/s; insulation medium: SF6/ Dry air; annual average leakage rate: ≤0.01%; IAC level: AFLR/1s; SF6 air box protection level: IP67; front panel protection level: IP3X; rated inflation pressure (20℃): 0.03MPa
BrandJST
Product details
Functional use: Our CGIS series products use SF6 gas or environmentally friendly gas as the insulating medium, with current levels covering 1250A~3150A. They are specially designed for primary power distribution applications and have the characteristics of high safety, reliability, miniaturization and maintenance-free.
Detailed description: Product features:
C-GIS, box-type micro-positive pressure gas-insulated metal-enclosed switchgear;
It has the characteristics of high safety, reliability, miniaturization and maintenance-free;
It is used in primary power distribution, substations, and rail transit;
Widely used in 12~40.5kV primary boost/step-down transformers and rail transit substations.
Technical parameters:
Rated voltage: GMU-12 is 12kV; GMU-40.5 is 40.5kV
Rated frequency: 50, 60Hz
Power frequency withstand voltage (phase to phase, ground/fracture): GMU-12 is 42/48kV; GMU-40.5 is 95/118kV
Lightning impulse withstand voltage (phase to phase, ground/fracture): GMU-12 is 75/85kV; GMU-40.5 is 185/215kV
Rated current: GMU-12 is 1250A, 3150A; GMU-40.5 is 1250A, 2500A, 3150A
Rated short-time withstand (current/time): 31.5/4, 40/4kA/s
Insulating medium: SF6/dry air
Annual average leakage rate: ≤0.01%
IAC level: AFLR/1s
SF6 air box protection level: IP67
Front panel protection level: IP3X
Rated inflation pressure (20℃): 0.03MPa
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