Proton Power controls

Voltage Monitoring Relay - MODEL: VMR-3P PR-07 Din Rail

Voltage Line Monitoring Relays, VMR 3P For Three Phase Systems, Phase Failure Relays, Reverse Phase Protectors, Single Phase Protectors Or Preventers, Digital Voltage Protection Relays, Digital Voltage Monitoring Relays, Digital Voltage Measuring Relays, Over And Under Voltage Protection Relays, Over And Under Voltage Monitoring Relays, Over And Under Voltage Measuring Relays, Over And Under Voltage Protection Relays, Three Phase Over And Under Voltage Protection Relays, Three Phase Over And Under Voltage Monitoring Relays, Three Phase Over And Under Voltage Measuring Relays, Manufacturer, Supplier, Exporter, Proton Power Control, Pune, Maharashtra, India

vmr-3p
vmr-3p

Protection of 3 Phase devices against Over voltage, Under voltage,Single Phasing, Reverse Phasing & unbalance supply are one of the major issue in electrical systems. For safe running of 3-phase devices, special protections that keep a continuous watch on supply conditions are very essential. The major cause of maximum load burn-out is overloading which occurs due to unbalance supply, Single Phasing & Reverse Phasing conditions. VMR3P detects such Conditions & protect the load from burn out. PROTON's VMR 3P' offer above protections along with 3 digit display showing R-Y,Y-B,BR voltages in scanning mode with precise accuracy. LOW/HIGH voltage tripping to ensure trouble free running of 3-phase Loads.



  • Supply voltage : 3 Phase 415 VAC, 50 Hz (R, Y, B & N) (No auxiliary supply)
  • Output Contacts : Two SPDT (C-N/O-N/C) Relay, Rating 5A at 250V AC
  • Indications : FAULT (UB/SPP/REVP, UV, OV): RED LED,RELAY ON: GREEN LED
  • Relative Humidity : 10 to 95% RH
  • Mounting : Drain Rail
  • Dimensions : 55(W) X 75(H) X 110(D) mm.
  • Keys :
  • 1) SET : SET key, Press to enter into SET Mode
  • 2) INC : Upward Arrow key, Press to increment the set point.
  • 3) DEC : Downward Arrow key, To Decrement the set point.
  • Microcontroller based technology.
  • Protection against under voltage, over voltage, Single Phasing & Reverse Phasing
  • All the set points settable by keys.
  • Trip Delay for under voltage, over voltage, Unbalance is settable
  • Reverse Phasing Protection can be bypass through settings.
  • Indications for Low voltage, High Voltage, SPP & Relay ON.
  • Message Display for SPP, Reverse Phasing & Unbalance Faults.
  • No separate auxiliary supply required.
  • In the normal run mode, display shows Voltage Vrn.
  • If the supply is within the range then timer indication blinks for time set in the set point & after that Relay will be ON.
  • If Over voltage,Under voltage in the supply then Relay will be OFF & corresponding fault LED starts blinking.
  • Hysterisis betwen Cut off & cut in is 10V
  • SET POINTS: 1. Under voltage 2. Over voltage 3.On Time for Relay
  • Procedure to view/change the set point:
  • To view the set point, press FN key.
  • Function Mode Message"Fun" will flash 3 times & then message ""uV" will flash three times & after that Under voltage set point will be displayed
  • User can view set points one by one like that.
  • But if user wants to change the set point, he has to enter correct password which is 11(Factory set) with the help of arrow keys.
  • Password will flash on display.If Password is correct, message "YES" will be displayed.
  • User will now able to access & change set points by pressing FN & arrow keys.
  • If Password is incorrect,message"no" will be displayed & Display will come out to run mode.
  • Setpoint will be saved by pressing FN key .
  • Important Note: User has to enter password within timelimit otherwise display will come out run mode quickly.
  • After set point entered,the system goes into Run mode automatically after 5 sec.