PRODUCT

GAS INSULATED SWITCHGEAR (GIS)

GAS INSULATED SWITCHGEAR (GIS)

ItemDescriptionDescription
Switchgear modelHICLAD 20GBHICLAD 30GB
Switchgear typeNBG-24BGB-36
Applicable standardsIEC62271-200
Clasification of switchgearSF6-insulated metal-enclosed
Service condition● Altitude < 1000m
● Ambient temperature Max. 40℃, Min. -5℃, 24h. average < 35℃
● Relative humidity 24h.average < 95%, 1 month average < 90%
Rated voltage (kV)2436
Rated current (A)1250, 20001250, 2000, 2500
Rated frequency (Hz)50/60
Insulation level
i. 1 min power frequency (kV rms)
ii. 1.2 × 50μs impulse (kV peak)
50
125
70
170
Rated short-time withstand current (kA-s)25-331.5-3
Degree of protection
i. HV compartment
ii. LV compartment
IP65
IP40
Gas pressure
i. Rated pressure (MPa)
ii. Alarm pressure (MPa)
0.05
0.02
0.08
0.06
Operation of 3-position isolatorMotorized / Manual
Auxiliary voltage
i. Control circuit (V)
ii. Motor circuit (V)
DC 30, 110, 125, 220
AC 220, 230, 240 / DC 110, 125

Vacuum Circuit Breaker (VCB)

ItemDescriptionDescription
VCB modelNVG-22VGB-33
Applicable standardsIEC62271-100
Rated voltage (kV)2436
Rated current (A)1250, 20001250, 2000, 2500
Rated frequency (Hz)50/60
Insulation level
i. 1 min power frequency (kV rms)
ii. 1.2 × 50μs impulse (kV peak)
50
125
70
170
Rated short-circuit breaking current (kA)2531.5
Rated short-circuit making current (kA peak)6382
Rated short-time withstand current (kA-s)25-331.5-3
Operating duty
(Other duties, O-0.3sec.-CO-15sec.-CO, O-0.3sec.-CO-1min-CO-1min-CO are also available.)
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
i. Rate of rise (kV/μs)
ii. TRV peak voltage (kV)
0.47
41
0.57
62
Type of operating mechanismMotor charged spring

Certifications

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