China 11kV Dry-Type Voltage Transformer Factory - High-Accuracy Instrument for Medium-Voltage Metering & Protection Suppliers
Product Parameter
| Parameter | Specification |
|---|---|
| Rated Voltage | 11kV |
| Rated Secondary Voltage | 100V / 110V |
| Frequency | 50Hz |
| Accuracy Class | 0.2 / 0.5 / 1.0 |
| Rated Burden | 10VA – 150VA |
| Insulation Class | Class F |
| Cooling Method | Natural air cooling |
| Partial Discharge | ≤5 pC |
| Power Frequency Withstand Voltage | 38kV (1 min) |
| Lightning Impulse Withstand Voltage | 75kV |
| Installation Type | Indoor (panel-mounted) |
| Standards | IEC 61869 / GB 1207 |
Product Applications
Indoor Switchgear and Electrical Distribution Panels
The 11kV dry-type voltage transformer is widely applied in indoor switchgear systems for precise voltage measurement and protection. With accuracy up to Class 0.2, it ensures reliable data for metering and relay systems. Its compact structure allows efficient installation in limited panel space, improving safety and performance in modern electrical distribution environments.
Power Substations and Monitoring Systems
In substations, this transformer converts 11kV primary voltage to standardized 100V/110V outputs, enabling accurate monitoring and protection. With partial discharge levels below 5 pC, it ensures excellent insulation reliability. It supports stable long-term operation, helping maintain grid safety and improving voltage monitoring accuracy across medium-voltage distribution networks.
Industrial Power Control and Automation Systems
The transformer is commonly used in industrial plants such as manufacturing facilities, energy systems, and automation control centers. It provides accurate voltage signals for control and protection equipment, maintaining performance within ±0.5% accuracy deviation. Designed for continuous operation, it enhances system stability and reduces the risk of electrical faults in high-demand industrial applications.
Product Advantages
Stable Electrical Performance
Provides reliable and stable voltage operation for long-term industrial power applications.
Compact Structural Design
The finished transformer features a compact structure with stable and dependable operating performance.
Reliable Insulation Structure
Durable insulation materials support safe and stable transformer operation over time.
Standardized Factory Production
Manufactured under controlled factory processes to ensure consistent product quality and reliability.
Maintenance-Free Operation
Solid finished structure reduces routine maintenance requirements during daily operation.
Flexible Installation Capability
Compact transformer design supports convenient installation in various electrical systems.
Key Benefits
The 11kV Dry-Type Voltage Transformer is a reliable, accurate, and compact solution for medium-voltage measurement and protection. Its advanced insulation design, high accuracy, and stable performance make it suitable for switchgear, substations, and industrial applications.
With long service life, minimal maintenance, and strong safety performance, it is an ideal choice for modern electrical monitoring systems.
FAQ
Q1. What distinguishes an 11kV voltage transformer from lower voltage models?
It is specifically designed to handle higher medium-voltage systems, offering improved insulation and dielectric strength.
Q2. Is this transformer suitable for precision energy metering?
Yes, it supports high accuracy classes such as 0.2, making it suitable for precise metering applications.
Q3. Can it operate continuously in industrial environments?
Yes, it is designed for continuous operation under varying load conditions in industrial settings.
Q4. What type of insulation system is used?
It uses epoxy resin casting, providing solid insulation and high reliability.
Q5. How does it ensure operational safety?
Through low partial discharge, strong dielectric strength, and flame-retardant materials.
Q6. What standards does this 11kV voltage transformer comply with?
It complies with international IEC 61869 and GB 1207 standards.