ENMU
ENMU meets IEC 61869-13 stand-alone merging unit standard. In addition to measuring inputs, ENMU may have digital inputs and outputs. Additional features of ENMU are synchrophasor measurement and digital fault recording.
ENMU digitizes input current and voltage signals and publishes up to 4 streams of IEC 61850-9-2 sampled values (SV) to the process bus for protection and measurement. High sample rate streams can be used for energy metering and power quality monitoring by ESM smart meters.
ENMU synchronizes the data using IEEE 1588v2 PTP. The modification with built-in digital inputs and outputs provides remote monitoring and control via IEC 61850-8-1 (MMS, GOOSE). The number of digital and analog signals processed can be increased by connecting external devices such as ENMV-1.
ENMU provides IEEE C37.118 phasor measurements. ENMU records and stores fault oscillograms and phasor measurements. Pairs of interfaces for publishing SV streams, and communication via IEC 61850-8-1 (MMS, GOOSE) can operate in IEC 62439-3 PRP redundancy mode.
Manual 
Software 
Hover over to see the location
- Power input
- Alarm binary output
- 2 ports Ethernet 100Base-FX (LC sockets, fiber multimode) SV IEC 61850-9-2LE, IEC 60870-5-104, C37.118.2
- Optical time synchronization interface
- Current measuring inputs
- Current protection inputs
- Voltage measuring inputs
- Service USB port
- Binary inputs
- Binary outputs
