1. Sphere of application

This specification is applicable to the detection and measurement of phase line current of three-phase direct access watt-hour meter (external relay) of State Grid 2020 edition. It can accurately measure AC, DC, impact load current, arc fault current, pulse current and various irregular waveform currents.

2. Applicable conditions

2.1 atmospheric pressure：63kPa~106kPa, at an altitude below 4000m.

2.2 Climatic environment: there are no gases, vapors, chemical deposits, dust and other corrosive and explosive media that seriously affect the insulation of the transformer.

See product specifications for details.