High voltage instrument transformers
Current, voltage and combined transformers, oil-paper or gas insulated up to 800 kV.
Capacitive Voltage Transformers
Capacitive voltage transformers isolate the measuring instruments, meters, relays, protections, etc., from the high voltage power circuit and provide a scaled replica of the voltage in the HV line.
They enable transmission of high frequency signals through the high voltage (HV) lines. Coupling capacitors are only used for coupling high frequency communication signals, making them equivalent to the capacitive part of a CVT.
- Ideal for installation at metering points due to its very high accuracy class and extremely steady capacitance.
- Transmission of high-frequency signals through the high voltage lines (PLC).
- Helps to reduce voltage peaks in the line.
Capacitive voltage transformer:
- Model DFK up to 800 kV.
- Model DDB up to 170 kV.
Coupling capacitor:
- Model DFN up to 800 kV.
- Model DDN up to 170 kV.
Documentation and Downloads
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Brochure Capacitive voltage transformers
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Brochure High voltage instrument transformers
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Technical article An approach to instrument transformers
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Technical article Theory and technology of instrument transformers
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Technical article Insulation technology in instrument transformers
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Technical article Tests on instrument transformers
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Technical article Electrical fields in instrument transformers
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Technical article Serial ferro-resonance in voltage transformers
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Technical article Power quality measurement with capacitor voltage transformers
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Technical article Discharge of high voltage lines and capacitor banks through inductive voltage transformers
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User manual Capacitive voltage transformers
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User manual Oil sampling
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Training Brochure
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Arteche Services
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