High-Insulation 20kV Dry-Type Voltage Transformer from China Suppliers | Precision Monitoring Factory
Product Parameter
| Parameter | Specification |
|---|---|
| Rated Voltage | 20kV |
| Rated Secondary Voltage | 100V / 110V |
| Frequency | 50Hz |
| Accuracy Class | 0.2 / 0.5 / 1.0 |
| Rated Burden | 10VA – 200VA |
| Insulation Class | Class F / Class H |
| Cooling Method | Natural air cooling |
| Partial Discharge | ≤5 pC |
| Power Frequency Withstand Voltage | 50kV (1 min) |
| Lightning Impulse Withstand Voltage | 125kV |
| Installation Type | Indoor (panel-mounted) |
| Standards | IEC 61869 / GB 1207 |
Product Applications
Medium-Voltage Switchgear and Smart Distribution Panels
The 20kV dry-type voltage transformer is widely used in medium-voltage switchgear and intelligent distribution panels for precise voltage measurement and protection. With accuracy up to Class 0.2, it provides reliable voltage data for digital monitoring systems. Its compact epoxy-cast structure supports easy installation and enhances system safety in modern smart grid environments.
Power Substations and Grid Protection Systems
In substations, this transformer converts 20kV primary voltage into standard 100V/110V outputs for relay protection and monitoring devices. With partial discharge controlled below 5 pC, it ensures high insulation reliability and stable long-term operation. It plays a critical role in maintaining voltage stability and protecting medium-voltage networks from faults and fluctuations.
Industrial Automation and High-Load Electrical Systems
The transformer is extensively used in industrial plants such as manufacturing facilities, energy systems, and process industries. It provides accurate voltage signals for control and automation systems, maintaining performance within ±0.5% accuracy deviation. Designed for continuous operation, it ensures system reliability and minimizes downtime in high-demand industrial applications.
Product Advantages
Dependable Power Performance
Ensures stable and reliable transformer operation in industrial power systems.
Compact Integrated Structure
Finished transformer design provides strong durability and stable operating performance.
Reliable Manufacturing Process
Factory-standardized production ensures consistent quality and operational reliability.
Long-Term Operational Stability
Designed for stable performance during continuous industrial operation.
Maintenance-Friendly Design
Reliable structure helps reduce operational maintenance requirements.
Flexible Operating Configuration
Supports different industrial operating requirements with multiple specification options.
Key Benefits
The 20kV Class Dry-Type Voltage Transformer is a reliable, accurate, and high-performance instrument transformer for medium-voltage systems. Its advanced insulation, compact design, and stable operation make it ideal for switchgear, substations, and industrial automation environments.
With long service life, minimal maintenance, and strong safety performance, it provides a dependable choice for modern voltage monitoring and protection applications.
FAQ
What makes a 20kV voltage transformer different from lower voltage models?
It offers higher insulation strength and dielectric performance to safely handle increased voltage levels.
Can this transformer be used in digital substations?
Yes, it is compatible with modern monitoring systems and supports precise voltage data for digital grid applications.
What ensures its long-term reliability?
Epoxy resin insulation, low partial discharge, and high-quality materials contribute to stable long-term performance.
Is it suitable for high-precision measurement systems?
Yes, accuracy classes up to 0.2 make it suitable for precise metering and monitoring applications.
What installation environments are recommended?
It is designed for indoor installation in switchgear, control panels, and substations.