The comparator is designed for use in an electrical network with a nominal voltage of 22 kV.
The phase comparator for medium voltage is used to check phase coincidence in three-phase medium voltage networks at 50 Hz frequency. Phase comparison is achieved by making contact with both conductors one after the other. The determination of phase´s coincidence (not coincidence) is signalized by the three highly illuminative LED.
The phase comparators type 111 are constructed for use in indoor or outdoor environment at the normal climatic conditions (climatic category normal -25 °C až +55 °C). They can only be used outdoor environments if the atmospheric conditions are in accordance with the conditions under which live parts of MV equipment can be operated under voltage in accordance with safety regulations. This means that they must not be used in rain, fog or snow.
This product received the GOLDEN AMPER award at the International trade fair AMPÉR 99.
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