Product Details:
Payment & Shipping Terms:
|
| Rated Voltage: | 380VAC | Frequency: | 50Hz |
|---|---|---|---|
| Protection Functions: | Over&under Voltage,phase Loss,phase Sequence,phase Unbalance | Overvoltage Range: | 390-490V |
| Undervoltage Range: | 300-370V | Delay Time: | 0.1-25s |
LCD 3 Phase Voltage Monitoring Relay , JVR1000 Time Delay Undervoltage Relay
The three-phase power supply monitor is a device that provides relay protection for the three-phase motor input power supply voltage is too high, voltage is too low, phase failure, reverse phase, three-phase voltage imbalance. The protector can timely break the contacts of the switch electrical appliances, disconnect the three-phase power supply of the motor, and quickly and reliably protect the motor.
1 . Reverse phase: The phase sequence of the power input to the protected device is incorrect.
2 . Overvoltage: The operating voltage of the protected equipment is higher than the set value.
3 . Undervoltage: The operating voltage of the protected equipment is lower than the set value.
4 . Static phase loss: refers to the phase failure of any phase when the protected device is in the non-operating state.
5 . Dynamic phase loss: refers to the phase failure of any phase when the protected device is in the running state.
6 . Three-phase voltage imbalance: refers to a kind of voltage imbalance protection that affects the safe operation of the equipment due to the unbalance of the three-phase voltage.
1. Its protection function is not affected by the size of the line or load current, inrush current, unbalanced current, and load properties.
2. Ability to perform full-performance, climate-wide long-term work to ensure normal and stable operation of appliances and motors.
3. There is no requirement for motor wiring when used for motor protection.
♦ Features
-- Built-in LCD and keypad afford a precise,digital setting
-- Three-phase monitoring of phase sequence, phase loss, over- and undervoltage and phase unbalance
-- Adjustable over- and undervoltage, phase unbalance threshold
-- Independent adjustable delay time for overvoltage, undervoltage, phase unbalance
-- Powered by the measuring circuit
-- 1 NO & 1NC contacts
-- Faulure recording
♦ Protective Functions
-- Phase sequence
-- Phase loss
-- Phase unbalance
-- Overvoltage
-- Undervoltage
♦ Typical Applications
• Pumps • Fans
• Blowers • Motors
• Compressors
♦ Approvals
• CE • CCC
♦ Technical data
| Type | JVR1000 |
| Measuring circuit | L1,L2,L3 |
| Rated voltage | 380VAC,50Hz |
| Monitoring functions |
Phase sequence,phase loss,overvoltage undervoltage,phase unbalance |
| Overvoltage setting range | 390-490V adjustable |
| Undervoltage setting range | 300-470V adjustable |
| Hysteresis | 10V |
|
Delay time for overvoltage and undervoltage |
0.1-25s adjustable |
| Phase unbalance setting range | 5%-29% adjustable |
| Delay time for phase loss | 1s |
| Delay time for phase sequence | Instant |
| Indicators | LCD indicating voltage,current,operation status |
| Output contacts | 1NO,1NC |
| contact capacity | 6A,250VAC |
| Dimensions(H x W x D) | 80*40*54mm |
| Mounting | DIN rail |
Contact Person: sales
Tel: +8613757785251
