The 2P740 Series relays are solid state voltage sensing relays with electromechanical output contacts. Designed for application on 3 phase AC voltage systems the 2P740 is ideally suited to monitor power supply phase angle imbalance, undervoltage and reverse phase sequence. The 2P740 measuring circuitry keeps the output relay energised while the 3 phase supply remains within the specified imbalance window thus providing failsafe system protection.
In the event of any of the follow supply conditions the output relay contact will drop out:
PHASE ANGLE IMBALANCE
LOSS OF PHASE
SUPPLY UNDER VOLTAGE
REVERSE PHASE SEQUENCE
The 700 Series range of electronic measuring relays are manufactured as a modular approach to electrical system protection & control. Designed to meet rigid Australian & international specifications the 700 Series provide a flexible, cost effective & extremely reliable solution for a multitude of applications under electrically hostile conditions.