AISS 

│ DESCRIPTION │

- Overcurrent Trip Feature : It operates ±10% min, current trip and from 150% of min current trip, it maintains for 3sec, follow by special curve.
- Overcurrent Lock System : If the Fault Current Trip is over 800A, the switch is locked autumatically and operates the Arc Quencing Trip for protection.
- Inrush Current Restrain Feature : About inrush current generated ash abscisic not recognized as a fault current of the line 0.5sec.

  Or 1.0sec. Depending on the setting delays the tripping.
- Arc Quenching Trip Feature : Ensure coordination and operation of the order of protection or cream can be operated after the fault

  current is blocked by the choices protection against fault current is more than the current Lock (800A) it has an elastically charged trip functions.
- Malfunction due to Inrush Current Protection Feature

  Due to the failure of other suyongga or supply side line during Pick protective device is turned potential

  protection by the and the counting function to prevent malfunction due to inrush current track occurs when

  reactivation by determining the presence or absence of the previous fault current to be voltage-free when

  operating for the inrush current occurring is to prevent over the coefficient function.

- Rated Voltage : 25.8kv
- Rated Current : 200A
- Number of Poles : 3P
- Rated Frequency : 60Hz
- Rated Short Time Withstand Current : 10KA/Sec.(sym)
- Making Current : 15KA(peak)
- Short Time Current : 10cycles-15KA / 1.0Sec.-10KA / 10Sec.-3.5KA
- Switching Performances :
   Phase-Ground : 50KV
   Phase              : 50KV
   Same Phase    : 60KV
- Impulse Withstand Voltage :
   Phase-Ground : 125KV(1.2x50μδ)
   Phase              : 125KV(1.2x50μδ)
   Same Phase    : 145KV(1.2x50μδ)
- Rated Control Voltage : DC240V(AC220V)
- Controller Withstand Voltage : AC 2KV/min / 5KV(1.2x50μδ)
- standards : KEMC 1126