The resultant of the current is in phase with the current i y the total current twice of the zero sequence current flows through the operating coil of the relay.
Phase sequence relay price.
Siemens 3ug4513 1br20 monitoring relay three phase voltage insulation monitoring 22 5mm width screw terminal 2 co contacts off delay 0 20s delay time 160 690 line supply voltage by siemens 297 99 297.
Emr4 f500 2 phase sequencerelay phase sequence monitoring with a compact device the emr4 f500 2 phase sequence relay with its compact 22 5 mm width is used for monitoring the clockwise rotation of movable motors for which the phase sequence is important such as with pumps saws drilling machines.
Overview technical specification connection diagrams applications phase sequence auto reset 1 co output relay supply voltage system 380 440 vac 20 3ph 3 wire auxillary built in from 3 phase output contacts output contacts1 co trip setting volts phase sequenceyes phase unbalance trip time delay on phase failure unbalanceinstant for level sensing.
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