Abstract:
The present invention refers to the method for manufacturing a stacked triangular core transformer. The method is used in a production of distribution and power transformers using a stacked technology for core transformers. The method comprises a step of assembling a triangular core (1) which is comprising the following steps: a) positioning of two halves of one leg (2a) on the assembly stand on the horizontal position; b) securing the positioned halves using an upper part of adapters (16b) on the assembly stand; c) positioning of an outer clamping beam (6) underneath two leg halves (2a) at the one end of the leg halves (2a); d) assembling the yoke segment (3) at the one end of two halves (2a) of the core leg (2); e) forming a first clamp of the frame (5); f) forming a second clamp of the frame (5) at the other end of the two halves (2a) of the core leg (2) by repeating the steps "c" to "e"; g) tightening the first clamp and the second clamp together by securing means; h) rotating a single core frame (5) into vertical position and releasing securing bar (17) of the assembly stand; i) assembling two additional single core frames (5), by repeating steps "a" - "h"; j) positioning the all three single core frames (5) in abutting position, and then tightening them mechanically at the bottom and the top of the frames.
Abstract:
The subject of the invention is portable heat exchange panel (1) for corrugated transformer tank with liquid medium. The heat exchange panel or panels are applicable for cooling corrugated transformer fins in distribution transformers. A portable heat exchange panel (1) for corrugated transformer tank characterised in that it has a form of a plate which is equipped with fastening means (3) for fixing the plate to the fins of a transformer tank and is equipped with at least two elastic distance elements (2) where one of the distance element is placed on one side of the plate and the other one is placed on the other side of the plate and each of the distance element (2) has an equal height (H).