Product Overview: The general high-voltage switchgear for (hereinafter referred to as the switchgear) complies with the national standard GB/T12173-2008 "General Electrical Equipment for Mining"; GB/T1984-2014 High Voltage AC Vacuum Circuit Breakers
Model and meaning:
Product Usage: This product is applicable to the manufacturing and inspection of general mine- type high-voltage switchgear used in open chambers or main roadways of coal mines free of dust and gas explosion hazards,as well as non-coal mines without water dripping and dust intrusion.
Technical parameters:
Rated voltage: 10kV/6kV;
Rated current: 1250 (630) A;
Protection level: IP54 (enclosure), IP21 (operation panel);
Short circuit breaking and closing current times: 5 times of "on-off -0.3s, on-off -180s, on-off", 14 times of "on-off", and 11 times of "on-off";
Rated short-circuit breaking current: 31.5kA (effective value);
Rated short-circuit closing current: 80kA (peak);
Rated short-time withstand current: 31.5kA (effective value);
Rated peak withstand current: 80kA (peak);
Rated short-circuit duration: 4s;
Environmental conditions:
(a) Altitude: not exceeding 2000m;
(b) Environmental atmospheric pressure: 80-110kPa;
(d) The monthly average relative humidity of the surrounding air is not greater than 95% (25 ℃); e) In an environment without damaging metal insulation with gas or steam;
(c) Environmental temperature: -20 ℃ to 40 ℃, and the average value measured within 24 hours does not exceed 35 ℃;
Presidential structure: The switchgear shell is made of 1.5mm thick cold-rolled steel plate, which can withstand the impact strength and strength tests specified by national standards and the technical conditions of this product. The cable is connected through an electrical trench and sealed with explosion-proof adhesive after installation. The switchgear is fixed. The unused inlet during installation is blocked with explosion-proof adhesive.
Transportation and storage:
Capacitors must be packed in packaging boxes before transportation.
During transportation, capacitors should be in an upright position, with the casing facing upwards. It is strictly prohibited to lift the casing for transportation.
Capacitors should be stored upright, with no direct heat source or corrosive gases in the storage area.
