3 Phase Digital Voltage Monitoring Relay JVR800-2 Overvoltage-Undervoltage Phase Sequence Asymmetry Protect
♦ 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 |
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Overvoltage Undervoltage Three Phase Voltage Monitoring Relay Phase Sequence Asymmetry Protect Images
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