Combined Instrument Transformer
Designed for high-voltage substations, this Combined Instrument Transformer integrates both current and voltage transformers into a single, compact unit. It offers accurate metering and reliable protection in power systems, reducing installation complexity and saving valuable space. Engineered to perform in demanding environments, it ensures stable operation, high insulation strength, and minimal maintenance requirements.
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All
Ring Main Unit
Auto Recloser
Combined Instrument Transformer
Gas insulated switchgear
Metal Clad Switchgear
SF6 Circuit Breaker
Vacuum Circuit Breaker
Fuse Cutout
Compact Substation
High Voltage Transformer
Load Break Switch
Cable Distribution Box
High Voltage Insulator
Isolator
Lightning Arrester
Current Transformer
Potential Transformer
Vacuum contactor
Grounding Switch
Frequently Asked Questions
What is a Combined Instrument Transformer?
It integrates CT and VT in one unit for efficient, compact power measurement and protection in high-voltage systems.
Why use a combined unit instead of separate CT and VT?
It reduces space usage, simplifies wiring, and lowers installation costs while maintaining high accuracy.
Is it suitable for outdoor installations?
Yes, it is designed for harsh environments with excellent weather resistance and high insulation strength.
What voltage ranges are supported?
Standard models range from 11kV to 220kV. Custom designs are available based on project needs.
How accurate is the transformer?
It complies with IEC/ANSI standards, offering metering accuracy up to class 0.2S and protection class 5P or 10P.
What is the typical service life?
Over 25 years under normal conditions, thanks to robust design and high-grade insulation materials.
Do you offer oil-filled or dry-type units?
We provide both oil-insulated and epoxy resin cast types, depending on your application and environment.
What kind of maintenance is needed?
Minimal. Resin types require visual inspection; oil-filled units may need periodic oil checks and dielectric tests.
Can it be installed in high-altitude or seismic areas?
Yes, our units can be custom-built for seismic conditions and altitude above 1000m, with tailored insulation design.
Is installation support provided?
We offer full technical documentation, remote guidance, and on-site support upon request to ensure smooth commissioning.