Product Overview
Potential Transformer(PT)
High Voltage Voltage Measurement and Protection Solution for Power Systems
High-voltage instrument transformer designed to reduce high system voltage to a standardized low voltage level for measurement, protection, and monitoring applications.
It provides accurate voltage transformation and electrical isolation between high-voltage equipment and secondary measuring devices, ensuring reliable operation of power system protection and control equipment.
Potential Transformers are widely used in substations, transmission networks, and industrial power systems where accurate voltage measurement and protection functions are required.
Key Features
Accurate Voltage Transformation
Designed to provide reliable voltage measurement signals for metering, monitoring, and protection applications.
High Voltage Insulation Performance
Provides electrical insulation between high-voltage primary circuits and secondary measurement systems.
Flexible Configuration Options
Available configurations can be selected according to voltage level, accuracy class, installation type, and project requirements.
Protection and Measurement Applications
Suitable for power system monitoring, relay protection, energy measurement, and substation automation systems.
Potential TransformerTechnical Specifications
The following specifications should be completed according to the selected model and approved product datasheet. Available ratings may vary by voltage class and design.
| Parameter | Reference Value |
|---|---|
| High-voltage rated voltage | Confirm by model |
| Low-voltage rated voltage | Confirm by model |
| Frequency | 50 / 60 Hz, confirm by model |
| Rated Capacity | Confirm by model |
| Accuracy Class | Confirm by model |
| Insulation Level | Confirm by model |
| Installation Type | Indoor / Outdoor, confirm by model |
| Insulating Medium | Oil / SF₆ / Solid insulation, confirm by model |
| Applicable Standard | IEC 61869-3, confirm applicability |
Product Structure & Accessories
Product Structure
A Potential Transformer generally consists of:
- High-voltage primary winding
- Secondary winding
- Magnetic core
- Insulation system
- Enclosure or housing
- Terminal connections
- Grounding components
Accessories
Depending on the product model and application requirements, available accessories may include:
- Primary and secondary terminals
- Junction boxes
- Protective devices
- Mounting accessories
- Grounding terminals
- Monitoring components
Working Principle of an Potential Transformer
A Potential Transformer operates based on electromagnetic induction principles.
The high-voltage primary winding receives the system voltage and transforms it into a lower standardized secondary voltage output.
The reduced voltage signal is supplied to measuring instruments, protection relays, and control systems while maintaining electrical isolation from the high-voltage circuit.
Why Choose Our Potential Transformer
Flexible Product Solutions
Different equipment configurations, operating arrangements, and installation options can be provided according to application requirements.
Technical Documentation Support
Product specifications, drawings, and supporting documents can be provided according to the selected model and project requirements.
Application-Based Selection
Our team can review the intended application and technical requirements to help determine a suitable product configuration.
Project-Oriented Support
Our technical team can review project requirements and provide suitable equipment solutions for different power system applications.
F.A.Q.
Supporting Subheading
A Potential Transformer is a high-voltage instrument transformer used to reduce system voltage to a measurable level for protection, monitoring, and metering applications.
A Potential Transformer is used for voltage measurement, while a Current Transformer is designed for current measurement in power systems.
Potential Transformers are commonly used in substations, transmission systems, power plants, and industrial electrical networks.
Potential Transformers are commonly designed according to IEC 61869-3 and other applicable international standards depending on project requirements.
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WHAT WE DO
Applications
Our high-voltage electrical equipment supports a wide range of power infrastructure projects, from substations and transmission networks to power generation and industrial electrical systems. Equipment selection and configuration depend on the specific application, system requirements, and technical ratings.
High-Voltage Substations
Designed for integration into high-voltage substation infrastructure, supporting power system operation and electrical equipment arrangements.
Power Transmission Networks
Suitable for high-voltage transmission infrastructure, supporting network operation and the integration of electrical equipment.
Power Generation Facilities
Applicable to power plant switchyards and grid connection infrastructure, subject to equipment specifications and project requirements.
Industrial Power Systems
Suitable for industrial substations and power infrastructure where high-voltage electrical equipment is required.