Using the same basic principle as the step down monophased transformer, a voltage measurement transformer provides good precision in measurement stations.
It enables measurement of very high alternating voltages.
Unlike the current transformers, voltage transformers use larger windings at the primary side compared to the secondary.
Electrical characteristics
- Accuracy class : class 3 to class 0,1 (According to Standards 60044-2)
- Insulation voltage : up to 20kV DC (higher voltage on request)
- Frequencies :
- Railways: 16Hz 2/3 and 50Hz
- Industrial : 50Hz and 60Hz
- Military : 400Hz
- Other frequencies on request
Applications
- Energy measurement
- Voltage calibration
Terminals
- Screw terminals
- Protected terminals
- High voltage insulated terminals
- Flat tags or U terminals
- Pins for P.C.B.
- Connectors
Standard design
- Naked
- Encased
- Safety cover
- Resin moulding : epoxy, polyurethane, silicone, loaded resins (resins may be requested in accordance with the standard UL 94 V0, fire smoke, etc…)
- Other casings on request