Product Overview: The general dry-type transformer for (hereinafter referred to as the transformer) has been reviewed by a designated national inspection unit, passed the inspection, and obtained a qualification certificate.
Model and meaning:
Product Usage: This product is only suitable for use in coal mines where there is no dust, gas explosion, or water dripping or dust intrusion in non coal mine tunnels or alleys.
Technical parameters:
(a) Number of phases: 3 phases.
(b) Primary voltage (V): 10 (6) kV.
(c) Secondary voltage (V): 400V.
(d) Connection group number: Dynl1.
(e) Insulation level: Class F.
(f) Cooling method: ANAF.
(g) Rated frequency: 50Hz
Environmental conditions:
(a) The altitude of the installation and use location shall not exceed 1000m
(b) Environmental temperature for use; -20 ℃ to+40 ℃.
(c) The relative humidity should not exceed 95% (+25 ℃).
(d) In coal mines, there is no dust, gas explosion gas, or water dripping or dust intrusion in non coal mine tunnels or alleys.
(e) In a gas or steam environment that does not damage insulation.
(f) In situations where there is no significant vibration or impact.
(g) Install with a vertical inclination not exceeding 5 degrees.
(h) Pollution level: Level 3.
Execution standard:
GB/T12173-2008 "General Electrical Equipment for Mining"
JB/T3955-2016 "General Power Transformers"
Q/JB004-2025 "General dry-type transformers for mining"
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.
