Meidensha 24kV And 36kV C-GIS High voltage Switchgear

Manufacturer: Meidensha Corporation
Model: 24kV And 36kV C-GIS

Features

High reliability
Reduction of maintenance work
Consideration to safety
Reduction of environmental contamination
Small footprint
VCB operational and capable of breaking short-circuit current even under low SF6 gas pressure

Specifications

Switchgear

Switchgear model	HICLAD 20GC
Switchgear type	BGC-24
Applicable standards	IEC62271-200
Classification of switchgear	SF6-insulated metal-enclosed
Service condition	• Altitude < 1000m • Ambient temperature Max 40°C, Min -5°C • 24h average < 35°C • Relative humidity 24h average < 95% 1 month average < 90%
Rated voltage (kV)	24
Rated current (A)	1250
Rated frequency (Hz)	50/60
Insulation level	1 min power frequency (kV rms): 50 1.2 × 50 μs impulse (kV peak): 125
Rated short-time withstand current (kA-s)	25-3
Degree of protection	HV compartment: IP65 LV compartment: IP40
Gas pressure	Rated pressure (MPa): 0.05 Alarm pressure (MPa): 0.02
Operation of 3-position isolator	Manual
Auxiliary voltage	Control circuit (V): DC 30, 110, 125 Motor circuit (V): AC 220, 230, 240 / DC 110, 125

Vacuum Circuit-Breaker (VCB)

VCB model	VGC-22
Applicable standards	IEC62271-100
Rated voltage (kV)	24
Rated current (A)	1250
Rated frequency (Hz)	50/60
Insulation level	1 min power frequency (kV rms): 50 1.2 × 50 μs impulse (kV peak): 125
Rated short-circuit breaking current (kA)	25
Rated short-circuit making current (kA peak)	63
Rated short-time withstand current (kA-s)	25-3
Operating duty	O-0.3sec-CO-3min-CO
Rated closing time (s)	0.05
Rated opening time (s)	0.05
Rated break time (s)	0.07
Rated TRV for terminal fault	Rate of rise (kV/μs): 0.47 TRV peak voltage (kV): 41
Type of operating mechanism	Motor charged spring

24kV, 36kV C-GIS 20GB, 30GB
Switchgear

Switchgear model	HICLAD 20GB	HICLAD 30GB
Switchgear type	NBG-24	BGB-36
Applicable standards	IEC62271-200
Classification of switchgear	SF6-insulated metal-enclosed
Service condition	• Altitude < 1000m • Ambient temperature Max 40°C, Min -5°C • 24h average < 35°C	• Relative humidity 24h average < 95% • 1 month average < 90%
Rated voltage (kV)	24	36
Rated current (A)	1250, 2000	1250, 2000, 2500
Rated frequency (Hz)	50/60
Insulation level	1 min power frequency (kV rms): 50 1.2 × 50 μs impulse (kV peak): 125	1 min power frequency (kV rms): 70 1.2 × 50 μs impulse (kV peak): 170
Rated short-time withstand current (kA-s)	25-3	31.5-3
Degree of protection	HV: IP65 LV: IP40	HV: IP65 LV: IP40
Gas pressure	Rated: 0.05 MPa Alarm: 0.02 MPa	Rated: 0.08 MPa Alarm: 0.06 MPa
Operation of 3-position isolator	Motorized / Manual
Auxiliary voltage	Control circuit: DC 30, 110, 125, 220 Motor circuit: AC 220, 230, 240 / DC 110, 125

Vacuum Circuit-Breaker (VCB)

VCB model	NVG-22	VGB-33
Applicable standards	IEC62271-100
Rated voltage (kV)	24	36
Rated current (A)	1250, 2000	1250, 2000, 2500
Rated frequency (Hz)	50/60
Insulation level	1 min power frequency (kV rms): 50 1.2 × 50 μs impulse (kV peak): 125	1 min power frequency (kV rms): 70 1.2 × 50 μs impulse (kV peak): 170
Rated short-circuit breaking current (kA)	25	31.5
Rated short-circuit making current (kA peak)	63	82
Rated short-time withstand current (kA-s)	25-3	31.5-3
Operating duty	O-0.3sec-CO-3min-CO
Rated closing time (s)	0.05
Rated opening time (s)	0.05
Rated break time (s)	0.07
Rated TRV for terminal fault	Rate of rise (kV/μs): 0.47 TRV peak voltage (kV): 41	Rate of rise (kV/μs): 0.57 TRV peak voltage (kV): 62
Type of operating mechanism	Motor charged spring
Note	* Other duties: O-0.3sec-CO-15sec-CO, O-0.3sec-CO-1min-CO-1min-CO are also available.