Premium Series

Potential
Transformers (PTs)

Powertech manufactures high-precision Potential Transformers (PTs) in both resin cast and oil-cooled variants for voltage measurement and metering applications in HT networks. These are built to ensure electrical safety, reliability, and compliance.

Key Highlights

Stable voltage scaling

Delivers consistent voltage reduction for accurate measurement and relay operation.

High impulse strength

Withstands transient surges and lightning impulses in power transmission systems.

Indoor & outdoor variants

Available in weather-resistant and compact designs for various substation conditions.

Low partial discharge

Manufactured for low dielectric losses, enhancing long-term performance.

Flexible mounting options

Supports both floor-mounted and panel-integrated configurations.

Compact and rugged build

Built to withstand mechanical stresses in demanding industrial applications.

SpecificationDetails
Voltage Class 11kV / 22kV / 33kV
Ratio11kV/√3 / 110V/√3 or as specified
Accuracy Class 0.2, 0.5, 1.0
Burden10VA to 50VA
TypeSingle-phase / Three-phase
InsulationEpoxy Resin / Oil Immersed
Applicable StandardsIS 3156, IEC 61869-3

Substation Voltage Monitoring

Enables voltage sensing in high-voltage substations for SCADA and control systems.

HT Consumer Metering

Used in commercial and industrial HT connections for energy auditing and billing.

Relay and Protection Circuits

Supports protective relays by providing scaled voltage inputs for fault isolation.

Energy Auditing Systems

Critical in load analysis and power quality assessment in grid-connected systems.