Elprom Trafo. Address: Kyustendil, Bulgaria, Dondukov Str. The factory was established in year under the name “Elprom Trafo” with its main activity being manufacturing of MV/LV Distribution Transformers. Elprom Trafo CH is company for Electrical Equipment in Kyustendil. Informaton about the company and its activities.

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These are performed upon special request of the customer. Dehydrating breather for TM series Our production is maximally extended — we manufacture the full range of oil immersed distribution transformers with rated power from 25kVA up to 10 kVA. The voltage is regulated at the HV side by means of an off-load tap-changer when the transformer is de-energized.

Contemporary automated lines cut the steel sheets delivered in rolls longitudinally and transversally. The leads from the HV winding are insulated with thick insulation paper layer and insulation tubes and press board.

Elprom Trafo CH PLC

China for transformer China transformer kva rating China transformer. The transport carriage with wheels elproj fitted to the tank bottom allowing bi-directional movement of the transformer. This site uses cookies.

yrafo Buchholz relay over kVA Dial type – thermometer with alarm contacts over kVA. Oil-draining and sampling valve DIN 9. Conservator for TM series We have a developed and introduced automated system for management of the purchase orders, management system for the technical documentations and management system of the material base of the plant.

Lifting lugs on tank cover The inner parts of the core and coil assembly are coated by an oil resistant enamel.

The outer surfaces are coated by several layers of anti corrosion primer and finished by high quality alkyd enamel. Oil trqfo venting plug In the upper part the walls are welded to a flange frame to which the tank cover is bolted. China dry transformer kva China transformer w China transformer kva toroid. The off-load tap-changer is situated vertically between two adjacent phases. For more than 10 years now the plant has an established and elpfom quality management system acc.

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The windings are of cylindrical type situated concentrically on the core limbs. The active part is lifted along with the cover by the ekprom eyes situated on it.

This is our path through the years — a path of tradition and continuous renewal. The thickness of the coating is increased depending on the operational climatic conditions. Nowadays we have control laboratories for incoming, current and outgoing control of the materials, used in the production, as well as testing laboratory for routine and type testing of the transformers. The HV winding is a multi-layer one for the lower ratings and two- or four-section multi-layer, block-coils or continuously wound disk winding for the higher ratings.

Not exactly what you want? At the bottom the walls are welded to the tank bottom. High quality of the welding seams is guaranteed by tests with penetrating agents in a special test field and by testing with over pressure of 40 kPa. The combinations of LV foil winding and multi layer HV winding results in a significant reduction of the axial electrodynamics forces at short circuit for the high ratings.

The active part is fixed to the traro cover and is supported by the tank bottom. Contemporary lines for automatic corrugation and plasma welding produce the tank walls. Special tests are performed on each transformer type including short-circuit test and noise level measurement.

Thus a sufficient thickness of the protective coating of min.

Rating plate and diagram 4. We are on the market since These include temperature rise test and lightning impulse test.

leprom Special epoxy resin bushing and plug-in cable connector at the HV side Elastimold system optional. The LV winding is situated at the core limb and is foil cylindrical elproj made out of profiled section copper for the ratings including kVA and out of copper foil for ratings kVA and above. Each coat is dried up in electric ovens.


TANK The standard type of the transformer tanks is rectangular a welded structure with corrugated walls made out of cold rolled steel sheets with low carbon content. The maximum production capacity of the plant has been reached before the end of the past century — 10 pieces of transformers are being manufactured annually.

Elprom – Trafo SN AD – SeeNews – Business intelligence for Southeast Europe

Upon request the tank and cover are hot-dip zinc galvanized. You, our customers know well that without solid foundation and clear goals there is elpprom development, and we have both.

Using the scroll is also considered to be a consent! One decade later the plant achieves significant development, it is renewed technologically, expands trao the production range is extended. The plant introduces a good working system, organized and maintained by high quality experts.

The fitting elements bolts, nuts, washers etc. They have an insulation of cable paper or enamel resistant to hot transformer oil. We have special design and technological departments, thereby the production cycle becomes fully closed — from the design of the transformer to its assembly, in accordance with the requirements of the end customer and every related national and international standard. We also have another advantage — the especially for us designed software for optimal design of transformers.

We can now shorten the production elpdom to elpdom maximum and this way — spare your time. The neutral terminal of the LV winding for all the transformers is brought out on the transformer cover through a separate bushing that is designed for the full rated current and is insulated for the highest voltage of the LV system.