Model# 3PT3 | 5KV Class

Three Phase 3-Wire Potential Transformer

The 3PT3-60 model is a three phase 5kV rated potential transformer with 60kV BIL in open delta configuration suitable for 3-phase 3-wire systems.

The 3PT3-60 model comes complete with primary fuses and have voltage ranges from 840V up to 4800V.

The 3PT3 model is suitable for revenue grade metering applications.

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Detailed Model Specs

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Accuracy Class: 0.3 WX, 0.6M, 1.2Y at 100% rated voltage with 120V based ANSI burden.
Frequency: 60Hz
Thermal Rating:
– 350VA (2.4 secondary amps per phase):  60Hz at 30°C
– 225VA(1.7 secondary amps per phase):  60Hz at 55°C
– 5.6kV
– 60kV BIL Full Wave
Weight: Approximately 38 lbs.
Primary Terminals: No. 10-32 Brass Screws with one flat washer and lock washer.

The core and coil assembly is encased in a plastic enclosure and vacuum encapsulated in polyurethane resin.

Recommended Spacing is for guidance only. The user needs to set appropriate values to assure performance for: high potential test, impulse test, high humidity, partial discharge, and high altitude.

Primary Fuses Included.

  • Frequency:  60Hz
  • Standard Secondary Voltage:  120Vac
  • Insulation Class:  5.6kV, 60kV BIL Full Wave
  • UL Recognized