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KS General purpose mine oil transformer
Transformers of the KS series are distribution equipment for mines. These products are distinguished by their small dimensions, ease of descent into the mine, rational design, low losses and good heat dissipation properties.
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Product Description
Transformers of the KS series are distribution equipment for mines. These products are distinguished by their small dimensions, ease of descent into the mine, rational design, low losses and good heat dissipation properties.
In products of this series, the magnetic core is made of oriented highly conductive silicon steel. The magnetic core is of the rod type, with a completely oblique joint of the plates. The magnetic cores have a multi-stage circular cross-section, which ensures low noise levels and low losses. The transformer tank has a robust design. High and low voltage cable boxes are welded on both sides of the tank for connecting cables. The high voltage winding is tapped at ±5% of the rated voltage. When changing voltage using a tap changer, you must first turn off the power and then remove the switch protection cover on the tank wall to change the voltage. On the low voltage side of the transformer, a “Y” connection for a voltage of 693 V or a “D” connection for a voltage of 400 V is allowed. Six porcelain bushings are provided in the cable box directly at the secondary terminals for reconnection by the consumer. The transformer is lifted using lifting lugs welded to the walls of the tank. At the bottom of the transformer tank there are slides with mounting holes, allowing, if necessary, to install mine wheels.
Transformers are designed for oil mine power transformers with power up to 1250 kVA and voltage up to 10 kV inclusive. This type of mine transformers belongs to general-purpose oil transformers, does not have an explosion-proof design and is used primarily as a power source for mine lighting or a power electric drive for the distribution of electricity in mines. All transformers of this series after transportation do not require removal of the active part for inspection and can be assembled with the installation of the corresponding dismantled parts and subjected to acceptance tests.
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