| 摘要 |
FIELD: measurement equipment.SUBSTANCE: invention relates to measurement equipment, represents a method and a device for detection of inlet voltage of a transformer in a local network station. In realisation of the method they measure inlet current, outlet current and outlet voltage of the transformer, and also a phase angle between the outlet current and the outlet voltage, they detect with their help a transformation ratio and full conductivity of a transverse link of a p-equivalent circuit of the local network station transformer, and bases on the detected transformation ratio and full conductivity they determine inlet voltage of the local network station transformer.EFFECT: increased efficiency of measurement.8 cl, 3 dwg |
