The DXN12-3P high-voltage live display locking device is a device used for online detection of the live status of high-voltage cabinets or power grids and for implementing forced locking of the grounding knife switch on the live side. It can be used in places such as GIS combined electrical apparatus and high-voltage power grids.
1. Outdoor device
a) Ambient air temperature: +70℃ to -40℃;
b) Altitude: not exceeding 4000m;
c) Wind speed: not exceeding 34m/s
d) The surrounding air may be contaminated by dust, smoke, corrosive gases, steam, or salt spray, with the contamination level not exceeding Class II of GB/T5582.

2. Indoor device
a) Ambient air temperature: +40℃ to -25℃;
b) Altitude: not exceeding 4000m;
c) Humidity conditions: daily average not greater than 95%, monthly average not greater than 90%. During periods of high humidity, condensation may occur during sudden temperature changes.
d) The surrounding air is not significantly contaminated by dust, smoke, corrosive and/or flammable gases, steam, or salt spray.
For special conditions, users should consult with the manufacturer.
3. Technical conditions

1) Suitable for operating voltages from 12 to 1100kV
2) Operating voltage: AC/DC 220V or 110V
3) Sensor starting voltage: ≥20mV or ≥10μA
4) Total power consumption: ≤3W

5) Relay locking current: AC220V/5A