Voltage Transformers up to 33kV

  • Indoor Type Resin Cast CTs
  • Outdoor Type Oil-Cooled CTs
  • Outdoor Type Resin Cast CTs
  • Single Phase / Three Phase Units.
  • Customized solutions as per client specifications

1. Dry-Type Resin Cast Voltage Transformers

Key Features:

  • Type: Single Phase / Three Phase
  • Voltage Class: Up to 33 kV
  • Insulation: Epoxy Resin Encapsulated (Non-hygroscopic)
  • Cooling: Naturally Air-Cooled (Dry Type)
  • Secondary Voltage: 110 V or 110/√3 V
  • Rated Burden: 10 VA to 500 VA at 0.8 PF lagging
  • Frequency: 50/60 Hz
  • Accuracy Class:
    • Metering: 0.1, 0.2, 0.5, 1.0, 3
    • Protection: 3P, 6P

2. Outdoor Oil-Cooled Voltage Transformers

Key Features:

  • Type: Single Phase / Three Phase
  • Voltage Class: Up to 33 kV
  • Insulation Medium: Mineral Oil (Conforming to IS 335 / IEC 60296)
  • Secondary Voltage: 110 V or 110/√3 V
  • Rated Burden: 10 VA to 500 VA at 0.8 PF lagging
  • Cooling Type: Oil Natural Air Natural (ONAN)
  • Accuracy Class:
    • Metering: 0.1, 0.2, 0.5, 1.0, 3
    • Protection: 3P, 6P
  • Frequency: 50/60 Hz
  • Construction: Hermetically sealed or conservator type as per customer requirement
  • Standards Compliance: IS 3156, IEC 60044-2, ANSI C57

Applications

  • Revenue metering in substations
  • Protection of power system equipment
  • Voltage monitoring and indication
  • Detection of residual voltage in unearthed and grounded networks

Technical Specifications

  • Standard Secondary Voltage: 110 V or 110/√3 V
  • Rated Burden: 10 VA to 500 VA at 0.8 lagging power factor
  • Frequency: 50/60 Hz
  • Insulation Class: A, B, or F
  • Cooling:
    • Dry Type – Resin Cast
    • Oil-Immersed

Accuracy Classes

🔸 For Metering Voltage Transformers:

 • 0.1 • 0.2 • 0.5 • 1.0 • 3.0

🔸 For Protective Voltage Transformers:

• 3PR • 6PR

🔸 For Residual Voltage Transformers (RPT/RVT):

 • 5PR • 6PR

Voltage Factor Options

We offer a range of standard and custom voltage factors including:

  • 1.2 Continuous
  • 1.5 for 30 Seconds
  • 1.9 for 30 Seconds
    (Specified as per system application and protection requirements)

We are Manufacturer, exporter and Supplier of Voltage Transformer, Potential Transformer for India, United Arab Emirates , Dubai , Sharjah , Saudi Arabia , Bahrain , Iraq , Kuwait , Oman , Qatar, Afghanistan, South Africa , Zambia , Tanzania , Ghana , Nepal , Bhutan , Bangladesh, Indonesia, Kenya , Malaysia, Turkey, Zimbabwe and other countries.