SOBRANO LOM - LOSS OF MAINS
SOBRANO LOM ROCOF RELAY LINE MONITORING AND PROTECTION RELAY
LOM-01 is a product of multi-functionlal line monitoring(Loss of Mains) relays which is located between the grid circuit and a power plant.
It is monitoring the mains continuously. In case of any possible interference in voltage or frequency, it disconnects the power plant from the grid circuit at a particular time.
When the system values turns its nominal values, again the device provides the power plant put into use.
- Microprocessor Based Digital Control
- Supply: 18-36VDC, 0.2A
- Maximum Measurable Voltage: 400V AC RMS (560Vp)
- Frequency Measurement Range: 40-60Hz
- Modbus RTU data transfer
Device Inputs and Outputs
- 1 Rs485 port
- 4 isolated input
- 1 trip/starting relay
- 1 lock/closing relay
- 3 phases, 1 neutral voltage input
PROTECTION FUNCTIONS
59 Inverse Time Phase overvoltage
27 Inverse Time Phase undervoltage
81O Underfrequency 81O Overfrequency
79 Reclosing
81R Frequency Change Ratio (ROCOF)
EQUIPMENT
Supply Input 18-36V DC
Digital Inputs 4 Digital Inputs Digital Outputs 2
Digital Output
Voltage Input 4 Voltage Input
Communication RS485 Communication Port
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