Working conditions
The paper-oil insulated voltage transformers we offer exhibit excellent resistance to extreme weather conditions. They can be used reliably at altitudes above 1000 m, in seismically active areas, and in high-wind environments.
High-voltage voltage transformer in paper-oil insulation (72.5–525 kV)
Application
What are paper-oil insulated HV voltage transformers used for?Their primary purpose is to step down voltage in a given line and isolate measuring instruments, meters, or relays from the high-voltage power circuit. Structurally, transformers can accommodate multiple voltage windings, and their insulators housing can be made of porcelain or silicone.Our product line includes two main types of Arteche transformers: inductive and capacitive voltage transformers. They are ideal for installation at measurement points due to their very high accuracy class.
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Advantages
- Very high and consistent accuracy (up to 0.1%) stable throughout the transformer’s entire service life
- Excellent mechanical strength while maintaining compact dimensions
- Anti-resonance winding design
- Protected by active elements inside a metal tank, pressure relief valves, and short-circuit-resistant electrical connections
- Easy to transport, store, and install (with minimal visual impact)
- Hermetically sealed for complete water resistance
- Compliant with international standards (including IEC, IEEE, UNE, BS, VDE, SS, CAN, etc.)
- Each transformer is designed to pass all type tests required in the standards
- Environmentally friendly design using high-quality PCB-free oils and recyclable materials
- Maintenance-free throughout their service life
Electrical data
Accuracy class (according to IEC standards for 100 VA)
Class 0.2/3P
Accuracy class (according to IEC standards for 250 VA)
Class 0.5/3P
Accuracy class (according to IEEE standards)
0.3 (WXYZ), 1.2 (WXYZ, ZZ)
Maximum operating voltage (kV)
52–525 kV
Power frequency withstand voltage (kV)
95–680 kV
Lightning impulse withstand voltage (BIL) (kVp)
250–1,550 kV
Thermal load (VA)
1,500–3,500
Standard creepage distance (mm)
1,300–1,3125 mm
Operating conditions
Value
Operating temperature
-55°C to +55°C
Max. altitude above sea level
1,000 m
Mechanical data
Weight
450–1,300 kg
Downloads
Catalog of HV transformers
Download PDFCertificate of conformity
Download PDF Product inquiry
"HV voltage transformers in paper-oil insulation from 72.5 to 525 kV"
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