LCD 3 Phase Voltage Monitoring Relay , JVR1000 Time Delay Undervoltage Relay

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