Auto Section Switch for Indoor and Outdoor

Introduce

Ass that installed at 22.9kV multi and neutal grounded distribution line, less than 4,000 kVA capacity (2,000kVA in special load) can separate the faulted line speedfully by its tripping operation in order to reduce the customer’s damage due to the faulted current. Besides ASS is possible to coordinate to Recloser or Circuit Beaker according to user’s specification.

Basic Functions

Over current Protection
The ASS can break the over current less than 880A in compliance with Time-Current Characteristic Curve.

Coordination of protection with Recloser or Circuit Breaker
The ASS can opened in order to separate the faulted line even though the faulted current is removed by operating of the Recloser or Circuit Breaker prior to ASS opening.

Blocking Inrush Current
One function of ASS controller can be blocking inrush current that may be occurred during closing operation.

Locking over current
The ASS is locked when the faulted current is over 880A and it will be opened after the faulted current is removed by other equipments such as Recloser or Circuit Breaker, fuses.

Auto Section Switch for Indoor and Outdoor Desc

Auto Section Switch for Indoor and Outdoor Desc

Features

High Technology

  • Light weight and compact design
  • Air insulation design and puffer arc quenching system
  • Easy maintenance
  • Possible to combine the current limiting fuse 1A to 200A with AISS

Safety

  • Possible to operate it even though the line is alive
  • Visible breaking parts at outside of cubicle

High reliability and serviceability

  • Perfect arc quenching system by puffer pressured-air
  • Possible to install it at vertical or horizontal position
  • Comfort and easy manual operation system by using flexible cable
  • Remote control possible
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