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Combined Instrument Transformer
Combined instrument transformers are used to separate protection and measurement devices from high voltages, and convert the current and voltage to be measured on high voltage lines into current and voltage signals with certain accuracy suitable for protection and measurement devices.
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Complete Product Portfolio
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Certified to International Standards
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Performance Optimized at Every Level
Product Highlights
Complete Product Portfolio
With voltage ratings ranging from 40.5 kV to 550 kV, the product features oil-paper insulation. Customized versions for low-temperature, high-altitude, and high-seismic environments are available to fully meet diverse application scenarios for different customers.
Certified to International Standards
The products are equipped with complete type test reports, low-temperature test reports, arcing test reports and seismic resistance reports, in full compliance with IEC, IEEE, GB and other authoritative standards, making them suitable for demanding working conditions and harsh regions. They have obtained EU CE, Spanish CE and UKCA certifications and are exported to more than 60 countries and regions worldwide.
Performance Optimized at Every Level
Featuring excellent electrical performance, the products boast reliable design, high accuracy and lightweight construction, fully meeting the high-precision metering requirements of various users. They exhibit outstanding mechanical properties and comply with seismic standards such as ETG1020 and IEEE-693.
Technical Specification
Rated Voltage
40.5-550 kV
Class
GB/IEC: 10/30/50/75/100/120/150/200/300
IEEE
0.15Y/0.15MWXYZ/0.3MWXYZ/0.6MWXYZ/0.6ZZ/1.2ZZ
Specific Creepage Distance
25/31 kV/mm
Insulator Material
Porcelain/Composite
Rated Frequency
50/60 Hz
Temperature Range
-60-50℃
Altitude
≤1000m,Customizable for high-altitude applications
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