Seaward PR33D/PH3 Phasing Unit

Code: PR33D/PH3
  • Phasing
  • 33kV
  • Digital Voltage Reading

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Seaward PR33D/PH3 Phasing Unit is designed to provide phase comparison at the point of paralleling two circuits, without the need for voltage transformers or secondary wiring circuits. It will also indicate if voltage is present and provide a measurement reading. The phasing and digital legs make up the set. Supplied with detachable earthing lead which allows the digital leg to act as a voltage meter without the use of the phasing leg.  Suitable for earthed neutral circuits up to 33kV. Supplied with calibration certificate.

The digital rod comprises of an integral rechargeable battery, supplied with charger and H3 proving unit, to test operation before and after deployment. Like all models in the series the PR33D is constructed from high grade PVC tubing and include encapsulated resistor chains.

  • Phase angle comparison
  • Chart provides a means of checking phase angle difference of circuits paralleled
  • Two overhead Line Extensions 1.5m included
  • Digital Readout
  • Suitable for AC and DC
  • Phasing and Voltage measurement
  • Supplied in tough housing
  • Included carrying case holds the unit and all accessories
  • Domed contact electrode
  • Lengths in conformance with creepage and safety regulations
System voltage33kV maximum
Maximum voltage to earth19kV
Measurement range0.00kV to 19kV

Ordering Information

Part number: 109A913 Model: PR33D/PH3 Digital Phasing Unit up to 33KV & Proving Unit


141A901 1.5m Extension Rod for overhead lines

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Title Size
hv_phasing_units_datasheet 140 KB

Additional information

Weight0.09 kg


PR33DDigital LegPhasing Leg
Maximum System Voltage33kV33kV
Maximum Voltage to Earth19kV19kV
Measuring Range0.00kV-19kV
Circuit Current

(IEC 61234-2)

0.9mA nominal @ 33kV0.9mA nominal @ 33kV
Dielectric Leakage Current

(IEC 61234-2)

23μA nominal @ 18kV17μA nominal @ 18kV
Length (mm)600670
Diameter (mm)2525
Handle Length (mm)235240
Hand Guard Height (mm)23.523.5
Contact Electrode TypeDomedDomed

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