Microprocessor Based Digital ELR 300mA-30A

Prok dv's make Earth Leakage Relay (ELR) MPEL series uses the state-of-the-art, Digital
microprocessor/micro controller based protection device to detect low level leakage due
to degradation of insulation of phase conductors or high impedance faults.The main feature
of Digital microprocessor/microcontroller Earth Leakage Relay (ELR) continuous display of
earth leakage currents of the power system. The unit has immunity to external disturbance
like harmonics and transients.

• Microcontroller based compact design
• Continuous monitoring and display of set value and measured value of leakage current
• 8 character 2line LCD displays with back lit
• Test & Reset facility
• CBCT connection monitoring facility
• True Rms measurement of leakage current
• Trip Circuit Failure indication (Optional) Default:Disabled
• Serial RS 485 communication port with modbus protocol (optional)
• Fault recording with date and time stampings, max up to 10 Faults (optional)
• Tropicalised and rugged design
• External test, reset, fault & healthy indication suitable for mining Application
• High sensitive leakage current setting (5mA to 1.00A) (MODEL:MPELSPL)