CMC256PLUS

CMC 256PLUS is a powerful relay test set designed for advanced protection testing in transmission and industrial environments. It delivers precise, stable current and voltage outputs suitable for distance, differential, generator, and transformer protection schemes. The device supports dynamic and transient simulation, enabling true-to-life verification of relay responses under complex fault conditions. Integrated with Test Universe, CMC 256PLUS offers automated test modules, fault playback, and comprehensive reporting tools. Its high channel density and advanced timing accuracy make it ideal for comprehensive end-to-end testing. Optional IEC 61850 testing capability extends its use into digital substation applications. Rugged and reliable, CMC 256PLUS is a benchmark for high-end protection testing.

Key Features

• High-accuracy multi-channel output

• Dynamic and transient fault simulation

• Support for advanced protection relays

• Automated test modules (distance, diff, etc.)

• IEC 61850 GOOSE/SV compatibility

• Excellent timing precision

Applications

• Transmission protection relay testing

• End-to-end protection scheme verification

• Commissioning of complex substations

• Fault analysis and simulation

• IEC 61850 environment testing

Keywords

CMC 256PLUS, advanced relay tester, differential protection testing, distance relay testing, end-to-end testing