High-Insulation 20kV Class Dry-Type Voltage Transformer from China Suppliers & Factory for Medium-Voltage Monitoring
| 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 |
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.
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.
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.
Ensures stable and reliable transformer operation in industrial power systems.
Finished transformer design provides strong durability and stable operating performance.
Factory-standardized production ensures consistent quality and operational reliability.
Designed for stable performance during continuous industrial operation.
Reliable structure helps reduce operational maintenance requirements.
Supports different industrial operating requirements with multiple specification options.
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.
It offers higher insulation strength and dielectric performance to safely handle increased voltage levels.
Yes, it is compatible with modern monitoring systems and supports precise voltage data for digital grid applications.
Epoxy resin insulation, low partial discharge, and high-quality materials contribute to stable long-term performance.
Yes, accuracy classes up to 0.2 make it suitable for precise metering and monitoring applications.
It is designed for indoor installation in switchgear, control panels, and substations.