JVR800-1 Multifunction 3-phase and sequence/Overvoltage/Undervoltage Monitoring relay with counting and timing

1.Introduction of 3-phase And Voltage Relay

ME-JVR(800-1) is Multi-function monitoring and protection device which includes timing, counting and voltage show, over-voltage and under-voltage protection, open-phase advanced microprocessor chip and nonvolatile storage technology. Chinese LCD is easy to operate, show the current supply voltage, cut off power to protect the equipment when meet over-voltage, under-voltage, phase loss and phase reversal faults. It is fit for various of passenger eievator, goods lift, hoist, machine tool and other devices which frequent start. 

2.Protective Funtion of 3-phase And Voltage Relay

A.Phase Loss protection:power will be cut off during phase lose;

B.Phase sequence protection:power will be cut off during when wrong phase sequence;

C.Under voltage protection:power will be cut off during under-voltage;

D.Over voltage protectionpower will be cut off during over-voltage;

E.Phase unbalance protection;

F.Voltage display:show the current supply voltage;

G.Fault records:recording the times and the tatal time of the errors.

3.Feature of 3-phase And Voltage Relay

A.Built-in LCD and keypad afford a precise,digital setting;

B.Three-phase monitoring of phase sequence, phase loss, over- and undervoltage;

C.  Adjustable over- and under voltage threshold  ;

D.Independent adjustable delay time for phase sequence, phase loss, overvoltage, undervoltage;

E.Powered by the measuring circuit;

F.1 C/O & 1NC contacts;

G.with Timing, counting and faulure recording

4.Applications of 3-phase And Voltage Relay

A.Pumps;

B.Fans;

C.Blowers;

D.Motors;

E.Compressors;

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