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Seaward PR33D HV Phasing Unit

Seaward HV Phasing Unit

The Seaward PR33D is a digital HV potential indicator and phasing stick which is designed to indicate the presence of voltage, make voltage measurements and provide a means of phase comparison at the point of paralleling two circuits, without the interposition of voltage transformers or secondary wiring circuits. It is suitable for use on earthed neutral systems up to 33kV.

The LCD display is powered by an integral rechargeable battery and is supplied complete with battery charger and PH3 proving unit in a bespoke carrying case. Conforming to recommended, creepage and safety standards, the PR33D features high-grade PVC tubing and incorporates totally encapsulated resistor chains.

The digital reading instruments provide voltage measurements and are supplied with a detachable earth lead, allowing the digital leg to be used as a voltage indicator, independently from the phasing leg.


  • Provides a means of phase angle comparison and indication of phase angle voltage at the point of intended paralleling of two circuits on neutral earthed systems. Both units are digital instruments.
  • Chart provides a means of checking phase angle difference of circuits paralleled
  • Kit comprises two elements with resistor chains, one with digital indicator and the second phasing rod

    Package Includes

  • 1 x Proving Unit
  • 1 x Battery Charger
  • 2 x Overhead Line Extensions (1.5m)
  • All Leads and Instructions
  • Carrying Case

  • Code HLLT.6
    Item Seaward PR33D HV Phasing Unit
    Weekly £180.00