CMC500

CMC 500 is a universal protection relay test set designed for comprehensive secondary injection testing and commissioning of protection systems. It provides precise current and voltage outputs capable of testing all common protection relays, including distance, differential, overcurrent, and transformer protection. The device delivers high accuracy even under dynamic test conditions, ensuring reliable verification of relay characteristics. CMC 500 supports automated test sequences using OMICRON’s Test Universe software, enabling efficient workflows for routine, type, and commissioning tests. Its robust design makes it suitable for harsh field environments and critical substations. With optional accessories, the system supports IEC 61850 GOOSE and Sampled Values testing for digital substations. This makes CMC 500 a highly flexible testing platform used by utilities, EPCs, relay manufacturers, and testing contractors worldwide.

Key Features

• Precise 3-phase current and voltage outputs

• Supports all major protection relay types

• Automated testing with Test Universe

• Dynamic, transient, and fault playback

• Optional IEC 61850 GOOSE/SV testing

• Rugged, portable design

Applications

• Protection relay testing

• Commissioning of substations

• Secondary injection testing

• IEC 61850 testing

• Routine maintenance of protection systems

Keywords

relay test set, secondary injection tester, protection testing, CMC 500, IEC 61850 relay test