AQ-S255 Bay control IED

AQ-S255 bay control IED may be applied for demanding control applications. The AQ-S255 comes with full current, voltage, power and energy measurement capability and may be equipped with additional I/O depending on application needs.Easy to use and powerful logic programming expands further the application range to more demanding control needs. Up to 11 optional I/O or communication cards can be inserted depending on application requirements. Large freely programmable HMI display provides quick visualization of the object, alarm and event status. The AQ-S255 communicates using various protocols including IEC 61850 substation communication standard.

 

Highlights

  • Bay control unit with extensive IO
  • Synchrocheck for up to three circuit breakers
  • Up to class 0.2S power and energy measurement accuracy

  • Controllable objects: 10
  • Synchrocheck (25)
  • Autorecloser (79)
  • 8 setting groups
  • Phase and residual currents (IL1, IL2, IL3, I01, I02)
  • Voltage measurements (UL1-UL3, U12-U31, U0, SS)
  • Current and voltage THD and harmonics (up to 31st)
  • Frequency (f)
  • Power (P, Q, S, pf)
  • Power (P, Q, S, pf)
  • Power (P, Q, S, pf) and Energy (E+, E, Eq+, Eq)
  • Disturbance recorder (3.2 kHz)
  • Current transformer supervision (CTS)
  • Fuse failure (VTS)
  • Trip circuit supervision (TCS)
  • Event recording
  • Non-volatile disturbance records: 100
  • Non-volatile event records: 15000
  • Current inputs: 5
  • Voltage inputs: 4
  • Digital inputs: 3 (standard)
  • Output relays: 5+1 (standard)
  • Options (11 slots)
  • Digital inputs optional: +8/16/24/32/40/48/56/64/ 72/80/88
  • Digital outputs optional: +5/10/15/20/25
  • 2 x mA input + 68 x RTD input
  • Communication media (specified below)
  • RJ 45 Ethernet 100Mb (front standard)
  • RJ 45 Ethernet 100Mb and RS 485 (rear standard)
  • Double LC Ethernet 100Mb (option)
  • RS232 + serial fibre PP/PG/GP/GG (option)
  • Communication protocols
  • IEC 61850
  • IEC 608705103/101/104
  • Modbus RTU, Modbus TCP/IP
  • DNP 3.0, DNP 3.0 over TCP/IP
  • SPA