Product DescriptionKSG series mine dry-type transformers are
suitable for central substations, underground yards, general air
inlets and main air inlets in coal mines. Metal and non-metal mines
that have gas but no explosion hazard are used to supply power to
various equipment in mines and underground mines, and are also used
to power public railway tunnels.KSG series mining dry-type
transformers are dry-type transformers with IP20 protection grade
shell and can be used in combination with high and low voltage
switches. The general dry-type transformer for mining is composed
of a separate dry-type transformer, shell and cable. It is used as
underground power supply and substation equipment, which is the
dry-type transformer for mining. The dry-type transformer for
general-purpose mobile substations for mining does not have When
equipped with high and low voltage switches, the middle case part
is equipped with the transformer core, that is, the winding part
and the iron core part.Model Description Technical parameters
and structure dimensionsProduct features and scope of useproduct
structure:The general dry-type transformer for mining is composed
of a separate dry-type transformer, shell and cable. It is used as
underground power supply and substation equipment, which is the
dry-type transformer for mining. The dry-type transformer for
general-purpose mobile substations for mining does not have When
equipped with high and low voltage switches, the middle case part
is equipped with the transformer core, that is, the winding part
and the iron core part.The input voltage of the dry-type
transformer can accommodate the line voltage from +5% to -5% of the
rated voltage. If it is necessary to change the high-voltage input
tap voltage, open the high-voltage junction box cover on the box
after confirming that the transformer is not energized, and change
the position of the connection piece on the high-voltage tap board
according to Table 4. When leaving the factory, the connection
pieces are always at 4-5, that is, the rated input voltage is
10000V.The dry-type transformer case is welded with steel plates,
and ventilation holes are added on the side of the main body to
increase the heat dissipation surface. There are four hanging
plates at the lower part of the dry-type transformer box, which
must be used at the same time when lifting the whole machine. The
lower part of the box is provided with a sliding shoe. The lower
part of the dry-type transformer box is provided with two M12
external grounding bolts with grounding symbols.The general type
dry-type transformer used in mines is used as electrical equipment
in the power supply system of non-coal mines. A separate feeder is
used for the equipment.Product Advantages &Characteristics:1.
KSG mine dry-type transformers have the advantages of safe,
reliable, energy-saving, fire-proof and explosion-proof, no harmful
gases, no pollution to the environment, and simple maintenance.2.
Product performance indicators are superior, maintaining excellent
electrical and mechanical properties during the entire service
life. It is most suitable for environments with high fire
protection requirements, large load fluctuations and high heat
resistance levels.3. The iron core of KSG mine transformer is made
of high-permeability and high-quality cold-rolled silicon steel
sheet, with small joints, low loss and low noise. The coil adopts
the most advanced winding technology, and heat-resistant insulating
materials are used between layers and turns. The insulation grades
are F and H heat-resistant grades, which can be operated for a long
time under a 180° environment.4. The coil is vacuum dipped with
imported paint, and the dipping paint completely penetrates the
deep layer of the coil. 160ºC~170ºC drying and curing, high
mechanical strength. The body is vacuum-dried by variable pressure
method, and the surface of the body is covered with a layer of
anti-moisture paint, which has good insulation properties.normal
operating conditions:Dry-type transformers should work normally
under the following conditions:a) Altitude: no more than 1000m;b)
Ambient temperature: -20ºC~+40ºCc) The relative humidity of the air
does not exceed 95% (at +25°C);d) in a gas or vapor environment
that does not damage the insulation;e) For use in explosive
atmospheres without methane dust.Product installation and
useInstallation and commissioning:Carry out a comprehensive
inspection of the product and necessary electrical tests before
installation1. Install mine dry-type transformer(1) Installation
site1.1 The transformer should be installed near the load
center.1.2 The protection level of the transformer room should meet
the requirements of IP20 protection level. Corrosive gases and dust
particles should be prevented from attacking the transformer.(2)
Installation basis2.1 The foundation of the transformer must be
able to withstand the full mass of the transformer.2.2 The
foundation of the transformer shall meet t
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