Voltage Relay, Over voltage Relay, Under voltage Relay, AC Relay, Annunciator Fascia, Manufacturer, Pune, india
 
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  Our Products

• Motor Controller
• LVM3P
• Single Phase Preventer
• Frequency Monitoring Relay
• Motor Protection Unit-Pump    Controller
• Phase Correction Relay
• Phase Selector Relay
• Scanner Without Display
• VMR 4p Dinrail
• Voltage Monitoring Relay

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We are introducing ourselves as leading manufacturers for Motor Controller & other products. Our company is in the field since last 15 years. We would like to become your valuable supplier. We request you to register our firm as a supplier for...
 
 
  Contact Us
S. No. 28, Jagtap Dairy, Pimple Nilakh, Pune - 411 027, Maharashtra India.
Tel. : +91-20-2727 0100,
Telefax : +91-20-2727 0800,
2727 6777
Mobile : 91 9422009655, 9423051875, 7350799200, 7350799300
visit Also at:
www.protonelectronic.com
  www.accontroller.com
 
 

Three Phase Voltage Monitoring Relay VMR4p Dinrail :

 
 
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 maxium load burn-out is overloading which occurs due to unbalance supply, Single Phasing & Reverse Phasing conditions. VMR 4 detects such Conditions & protect the load from burn out.
 
'PROTON's LVM 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.
 

VOLTAGE MONITORING RELAY- VMR 4 (SINGLE PHASE SPP)

   
 
VMR4p Dinrail
 
   
 
SALIENT FEATURES :
Microcontroller based technology.
Voltage protection along with digital voltage readout.
Wide range of supply variation.
Unit will also work if any one phase is present.
Protection against Under voltage.
Protection against Over voltage.
Single Phasing & Reverse Phasing protection.
All the set points setable by keys.
Phase unbalance protection.
Trip Delay for Under voltage & Unbalance is settable
Reverse Phasing Protection can be able to 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.
Hold feature:- Press INC key in Running condition to observe particular supply voltage.
Neutral Protection feature i.e. If one of the phase get connected to neutral then there will be no damage to the unit.
 
TECHNICAL SPECIFICATION :
Supply Voltage
3 Phase 415 VAC,50 Hz (R,Y,B &N) (No auxilliary supply)
Output Contacts
Two changeover ( C-NO),Rating 5A at 230VAC
Voltage trip setting
Lower Limit is 340 for Under voltage (Resolution of 1 Volt)
Upper Limit is 460 Volts for OV (resolution of 1 V)
( Hysterisis between cut off & cut in is 10V)
Trip Time delay
Trip time Less than 100msec.for SPP, Reverse Phasing & Over Voltage Trip Time is settable for Under Voltage & Unbalance..
ON Delay
Selectable by keys from 1 to 60 sec.
Reset Mode
Auto reset
Indications
SPP : RED LED
OVER VOLTAGE : RED LED
UNDER VOLTAGE: RED LED
RELAY ON : GREEN LED
Keys
 [ SET ] : FUNCTION key, To select a set point function.
 [ /\ ] : INC key, To increment set point.
 [ \/ ] : DEC key, To Decrement set point.
Operating Temperature range
-5 0C to 60 0C.
Relative Humidity
10 to 95%
Mounting
Din rail. : Base mounting dimensions
55 (W) x 65 (L) x 125 (D) mm.
 
WORKING :
- In the normal run mode, display shows Voltages Vry,Vyb,Vbr for 10 sec. each If the supply is within the range then On Timer starts decrementing on display & after Set On Time over Relay will be ON.

If Over voltage, Under voltage or spp/reverse phasing/unbalance

occurs in the supply then Relay will be OFF & corresponding

fault LED starts blinking.

Hysterisis betwen Cut off & cut in is 10V

WORKING

- Hold feature:- Press INC key in Running condition to observe particular supply voltage. To go into scroll mode press INC key again.