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SF6 Gas Insulated LBS (Overhead Line) SF6 Gas Insulated LBS (Underground Line) Oil Insulated ASS Disconnecting Swtich

Oil Insulated Automatic Section Switch

The oil insulated automatic section switch is a switchgear that can give the opportunity for transient fault clearing and is a line protection device used in order to prevent the influence of accident from expanding and in order to minimize the damage by promptly and accurately interrupting the current only in the fault section or opening when overload or fault current occurs after being installed at the service entrance of customer of extra high voltage under the ordinary load of 4000kVA (special load: 2000kVA) or below.
◎ Having an interruption function (800A±10%)
◎ Using its own charging method
◎ Having an overload protection function, a charging Trip function, a function of preventing a malfunction due to inrush current, and an over current lock function
Rated Voltage (kV) 25.8
Rated Current (A) 200A
Rated Making Current (kA, peak) 25
Rated Short-Time Current (kA, RMS) 10
Minimum operation Current (A) Phase Ground 15, 25, 35, 50, 70, 100, 140, 200A Block
8, 13, 18, 25, 35, 50, 70, 100 By-pass
Power Frequency Withstand Voltage (kV) 60
Impulse Withstand Voltage (kV) 150
Maximum Over-Current Lock Current 800A
Number of No-Voltage Operations (Times) 5,000
Weight 250
Applied Standards IEC 62271-1, KEMC 1126

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