Protecting motors from phase rotation errors

March 5th, 2014, Published in Articles: Energize, Articles: Vector


newelec-009-03-2014It is frequently necessary to ensure that motors in pumps, compressors and fans do not turn in the wrong direction. In some cases doing so can result in serious damage to equipment and high cost of repair. Phase rotation protection is available with the NewELec MA, the entire “K” range and the latest NewCode motor protection and control relays. All these products detect phase reversal conditions from the supply side of the circuit. When encountered, the motor is not permitted to start and an appropriate latching and warning LED is lit up on the relay control panel. The NewCode relay offers the technician the ability to “fix” the rotation by incorporating a software solution, which removes the necessity of a physical hard-wire fix.

Contact Luc Dutrieux, NewElec,
Tel 012 327-1729,

Related Articles

  • South African Government COVID-19 Corona Virus Resource Portal
  • Ministerial determinations propose 13813 MW of new-build by IPPs, none by Eskom
  • Crunch time for South Africa’s national nuclear company, Necsa
  • Dealing with the elephant in the room that is Eskom…
  • Interview with Minerals & Energy Minister Gwede Mantashe