What Is High Voltage Current/Voltage Transformer？
ZHIMING High-Voltage Shunt Power Capacitor is an advanced and reliable power capacitor designed for industrial and utility applications. Engineered to operate efficiently in 50Hz or 60Hz AC power systems, it plays a crucial role in power factor correction capacitor networks, helping to improve energy efficiency, stabilize voltage levels, and reduce overall system losses. By enhancing power factor and optimizing reactive power management, this capacitor not only increases the capacity of existing electrical infrastructure but also extends the lifespan of connected equipment. Complying with the international standard IEC 60871-1:2005, it is a nationally recognized energy-saving product suitable for a wide range of high-demand environments.
Working Conditions of the High Voltage Current/Voltage Transformer
- Ambient Temperature: -40°C to +55°C (daily average ≤+40°C)
- Altitude: ≤3000m above sea level
- Relative Humidity: ≤95% (non-condensing)
- System Frequency: 50Hz or 60Hz (optional dual frequency)
- Pollution Grade: Up to Class IV (heavy industrial pollution or coastal salt fog) – with extended creepage distance ≥31mm/kV
Why Choose ZHIMING's High Voltage Current/Voltage Transformer?
High Accuracy & Reliability
ZHIMING uses premium-grade silicon steel cores and precision winding technology, ensuring Class 0.2/0.5 accuracy for both current and voltage transformation, minimizing metering errors.
Robust Insulation Design
Our High Voltage Current/Voltage Transformer adopts vacuum epoxy resin casting or oil-impregnated paper insulation, providing excellent dielectric strength and partial discharge control, suitable for up to 245kV and beyond.
Wide Operating Range
Designed for extreme temperatures (-40°C to +55°C), high altitude, and humid environments, ZHIMING products maintain stable performance under challenging grid conditions.
Comprehensive Certification
All models comply with IEC 61869, IEEE C57.13, GB/T 20840, and have passed KEMA, CE, and type tests, ensuring global project acceptance.
Customizable & Fast Delivery
ZHIMING offers tailored ratios, number of cores (for metering, protection, or dual purposes), and enclosures (indoor/outdoor, bushing or freestanding) with typical lead time of 25–35 days.
FAQ
Can a High Voltage Current/Voltage Transformer be used for both metering and protection?
Yes, ZHIMING designs dual-core transformers: one core with high accuracy (Class 0.2) for billing, another with higher saturation point (Class 5P/10P) for relay protection.
How do you prevent ferroresonance in voltage transformers?
ZHIMING adds damping windings and uses anti-ferroresonance core materials. We also provide ferroresonance suppression resistors upon request.
What is the standard secondary burden for current transformers?
Typically 5VA, 10VA, 15VA, or 30VA at rated current of 5A or 1A. ZHIMING confirms burden with user before manufacturing.
Are your transformers suitable for GIS (Gas Insulated Switchgear)?
Absolutely. We produce both AIS (air-insulated) and GIS-compatible High Voltage Current/Voltage Transformer units with SF6 gas insulation as needed.
What tests do you perform before delivery?
Routine tests (ratio, polarity, insulation resistance, power factor, partial discharge) and type tests (lightning impulse, temperature rise, short-time current) per IEC standards.
