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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The voltage is regulated at the HV side by means of an off-load tap-changer when the transformer is de-energized. For each rated power we offer different series, depending on the no-load and load losses.

The inner parts of the core and coil assembly are coated by an oil resistant enamel. The plant introduces a good working system, organized and maintained by high quality experts.

You, our customers know well that without solid foundation and clear goals there is no development, and we have both. China dry transformer kva China transformer w China transformer kva toroid.

The windings are of cylindrical type situated concentrically on the core limbs. Dial type – thermometer with alarm contacts over kVA.

Thus it remains stable frafo transportation. 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.

Special epoxy resin bushing and plug-in cable connector at the HV side Elastimold system optional.

Elprom-trafo Sn Ad, Ul. Dondukov 63 , CO. REGISTRATION NO

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. Thus a sufficient thickness of the protective coating of min. The optimal design of the windings and employment of most contemporary technology, the optimal selected cooling ducts, properly dimensioned insulation, effective tightening traafo radial and axial direction result in a high electrical, thermal and dynamic withstand capability according to the requirements of IEC.

Off-load tap-changer driving mechanism 5. Type tests are performed on each transformer type. The neutral terminal of the LV winding for all the transformers is brought frafo 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.

Contemporary automated lines cut the steel sheets delivered in rolls longitudinally and transversally.

Elprom Trafo CH PLC – Power, distribution, transformers

These include temperature rise test and lightning impulse test. We are on the market since 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.

China for transformer China transformer kva rating China transformer. The leads from the HV winding are insulated with thick insulation paper layer and insulation tubes and press board.

ELPROM TRAFO CH Oil Filled Distribution Transformers 25-2500 KVA

The active part is fixed to the tank cover and is supported by the tank bottom. Lifting lugs on tank cover TANK The standard type of the transformer tanks is rectangular a welded structure with corrugated trfo made out of cold rolled steel sheets with low carbon content.

Oil filling venting plug 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.

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. Dehydrating breather for TM series The active part is lifted along with the cover by the lifting eyes situated on it.

Elprom trafo

Each coat is dried up in electric ovens. One decade later the plant achieves significant development, elprok is renewed technologically, expands and the production range is extended. The fitting elements bolts, nuts, washers etc. The HV winding is a multi-layer one for the lower ratings and elporm or four-section multi-layer, block-coils or continuously wound disk winding for the higher ratings.

The quality procedures, according to ISO The LV winding is situated at the core limb and is foil cylindrical type made out of profiled section copper for the ratings including kVA and out of copper foil for ratings kVA and above.