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Protection Relay Supplier and Exporter

We supply numerical protection relays for feeders, transformers, motors, generators and lines, with IEC 61850 communication for substation automation. Relays are selected for the protection functions, CT and VT inputs and auxiliary supply you specify.

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Protection Relays specifications

Typical specifications buyers request. Exact ratings, availability and lead time are confirmed in each quotation.

Protection Relays
Protection Relays
FunctionsOvercurrent and earth fault (50/51), differential (87), distance (21)
ApplicationsFeeder, transformer, motor, generator, line
CommunicationIEC 61850, Modbus, DNP3
Auxiliary supplyFor example 24-48 V DC or 110-250 V DC
MountingPanel flush mounting

Standards commonly specified

  • IEC 60255
  • IEC 61850
  • IEEE C37.90

Applications

Where our protection relays are typically used.

  • Switchgear panels
  • Substation control and relay panels
  • Retrofit of electromechanical relays
  • Industrial motor protection

Before you request a quote

Functions
List required protection functions per feeder or asset.
Protocol
Match the communication protocol to the SCADA or substation system.
Retrofit
Check panel cut-out and CT/VT compatibility when replacing old relays.

Protection Relays: common questions

More answers on the FAQ page.

Related products

All Switchgear & Protection
High-Voltage SwitchgearWe supply gas-insulated (GIS) and air-insulated (AIS) high-voltage switchgear for transmission and grid substations, including circuit breakers, disconnectors, earthing switches and instrument transformers.Medium-Voltage SwitchgearWe supply metal-enclosed, air- or gas-insulated medium-voltage switchgear panels with vacuum circuit breakers for distribution networks, industry and infrastructure.Low-Voltage SwitchgearWe supply low-voltage switchgear assemblies, including main LV switchboards, power control centres (PCC) and motor control centres (MCC), built and verified to IEC 61439.Circuit BreakersWe supply circuit breakers across voltage levels, from MCBs and MCCBs for final distribution to air circuit breakers for LV incomers and vacuum and SF6 breakers for medium and high voltage.

Request a Protection Relay Quote

Send a short description of what you need. We'll review it and get back to you with a quotation.

Helpful to include

  • Functions
  • Applications
  • Communication
  • Auxiliary supply
  • Quantity and destination country

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