Phase Monitoring Relay Failure Reversal Digital Monitor Three Phase Detector

Product Overview

Description

 

Phase Monitoring Relay Failure Reversal Digital Monitor Three Phase Detector

♦ Features

  -- Compact modular 43mm housing

  -- Microprocessor technology provides highly accurate and repeatable protection

  -- Built-in LCD and keypad afford a precise digital setting

  -- Adjustable over- and undervoltage,phase unbalance threshold

  -- Independent adjustable delay time for overvoltage, undervoltage, voltage unbalance,

   phase loss and phase sequence

  -- Adjustable reset method:automatic reset or manual reset

  -- Start delay(power-on delay)

  -- Test trip with test button

  -- 1 NO & 1CO contacts

  -- with Timer and Counter for runing and faults

 

♦ Protective Function

  -- Phase sequence

  -- Phase loss

  -- Overvoltage

  -- Undervoltage

  -- Voltage unbalance

  -- Timer and Counter

♦ Typical Applications

 - Pumps  - Fans   - Refrigeration Units

 - Blowers   - Motors   - Compressors  

 - Lifts,Elevators   - Cranes

 - Mining excavators and conveyors

 

♦ Technical date

Model	JVR800-2
Measuring circuit	L1,L2,L3
Rated voltage	208~480VAC,50/60Hz
Monitoring functions	phase sequence, phase loss, overvolatege, undervoltage,voltage unbalance, timer, counter
Overvoltage setting range	200-600V
Undervoltage setting range	150-500V
Voltage hysteresis	1-20V
Delay time for overvoltage and undervoltage	0.1-30s
voltage unbalance ratio	1-50%
voltage unbalance hysteresis	1-10%
voltage unbalance delay time	0.1-30s
Delay time for phase loss	0.1-30s
Delay time for phase sequence	0.1-30s
Start delay time	0-999s
Auto reset mode	ON/OFF
Auto reset time	0.1-999s
Timer and counter input	AC/DC 80-450V
Indicators	LCD indicating voltage,current,operation status
Output contacts	1 C/O,1NC
Contact capacity	6A ,250VAC
Dimensions (H x W x D)	80×43×54mm
Mounting	DIN rail

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

♦ Wiring Diagram

 

* Please contact us for further information.