Compact transformer stations

Compact substations require integrated and space-saving protection solutions that can handle transformer, feeder and often arc flash functions. They need rugged, maintenance-friendly relays capable of operating in constrained environments.

With its depth of only 90mm including terminal plugs, the SYMAP®Compact(+) product series is the ideal solution for limited space cabinets. With the long list of standard protection functions included in a single device, along with powerful integrated PLC functionality for customized logic, it is a versatile device which can cover multiple applications and protected elements.

Substations often require a control bay unit which SYMAP®Compact(+) can cover as a combined protection and control device, supporting:

  • control of up to 8 switching elements (breakers, disconnectors, earthing switches)
  • bay interlocking logic
  • single-line diagrams and other programmable user pages on touchscreen HMI
  • time synchronization: SNTP, PTP, IRIG-B
  • SCADA integration via IEC 61850 (ED1 and ED2), IEC 60870-5-103/104, Modbus RTU/TCP, Profibus DP and fast substation level GOOSE communication

Communication redundancy options include RSTP, PRP, HSR, ensuring high availability in substation networks.

For projects requiring a larger number of signals, using the modular EBS extension board system with SYMAP®Compact(+), users can benefit from:

  • up to 50 additional binary inputs
  • up to 24 additional binary outputs
  • multi-voltage input compatibility (12–230 V AC/DC)

The modularity enables scalable substation automation. 

Applicable products: