Omicron CMC 256-6 Voltage Protective Relay Test Set

Omicron CMC 256-6 Voltage Protective Relay Test Set

High precision relay test set and universal calibrator

The CMC 256 is the first choice for applications requiring very high accuracy. This unit is not only an excellent test set for protection devices of all kinds but also a universal calibration tool. Its high precision allows the test and calibration of a wide range of measuring devices, including power quality (PQ) measurement devices of class A and S, energy meters of class 0.2, measuring transducers and phasor measurement units (PMU). Its unique accuracy and flexibility make the CMC 256 ideal for protection and measurement equipment manufacturers for research and development, production, and type testing

Multi-functional measurements

By utilizing the EnerLyzer software option, the ten binary inputs of the CMC 256 can also function as analog measurement inputs. The test set can then be used as a portable 10-channel multi-meter, transient and trend recorder, harmonic signal analyzer and much more. Analog measurements are very helpful for troubleshooting during commissioning or maintenance testing of protection devices (for example, recording of transients during switching operations or analysis of transformer inrush events).

Varied applications

Up to 12 independent channels of low-level signals are available on the rear of the test set, which can be used to test relays with non-conventional sensor inputs (for example, Rogowski coils) or to control external amplifier units.

Connectivity options

The CMC 256plus is designed to work with OMICRON’s most powerful software tools. Users can control the test set using either a Windows PC/laptop or an Android tablet and connect via Ethernet/USB cable or Wi-Fi (through the optional mini wireless USB adapter). Time synchronized applications according to IEEE 1588 are possible, for example, via CMGPS 588. The GPS controlled time reference with integrated antenna works as a Precision Time Protocol (PTP) grandmaster clock and is optimized for outdoor usage.

Organize your tests

For centralized planning, tracking, and managing of all engineering, testing and maintenance activities in the power industry, the ADMO software 1 ensures that the workflows of asset and operations managers, testers, and protection engineers are structured and coordinated. Key data will be kept up-to-date and available to all employees at all times.