Power Transformers Part

Power Transformers Part

1. Refrigerant

The temperature at which the transformer is operating will be influenced by the quality of the network voltage, losses in the transformer itself and the ambient temperature. High operating temperatures will cause damage to the transformer insulation paper. Therefore, effective cooling is needed.

Transformer insulating oil in addition to the isolation medium also serves as a coolant. At the time of the oil circulates, the heat emanating from the entanglement will be brought by the oil circulation on track and will be cooled on the fin - fin radiator. The cooling process can be aided by a fan and circulation pump in order to improve cooling efficiency.

Power Transformers Radiator

2. Oil preservation & expansion (Conservator)

When the operating temperature rise in transformer oil, insulation will expand so that its volume increases. Conversely when the operating temperature decreases, then the oil will shrink and the volume of oil will go down. Conservators used to accommodate the transformer oil at mengalamui temperature rise.

Power Transformers Conservator 

Silica gel

To avoid the transformer oil does not deal directly with outside air, then the current conservator designed using brether bag / rubber bag, which is a kind of rubber balloon that is placed inside the conservator tank.

Part of the Bushing

Broadly speaking, the bushing can be divided into four main sections namely insulation, conductor, clamp connections, and accessories. Isolation of the bushing consists of two types of oil impregnated paper and resin impregnated paper. In this type of oil impregnated paper insulation used is insulating paper and insulating oil while in the type of resin impregnated paper insulation used is the paper insulation and resins.

Paper insulation on the bushing (oil impregnated paper bushings)

Bushing conductor insulation coated paper

There are other types of conductors on the bushing is a hollow conductor in which there is an iron binding or hole in the middle penegang main conductor, solid and flexible conductor leads.

Is a means of fastening clamp connection between the stud bushing with a conductor Conductor bushing out.

Section - parts transformer and its function

Iron core

1 Electromagnetic Circuit (iron core)
Iron core is used as a medium course of flux caused by the induction of alternating current to the coil that surrounds the iron core so as to induce a return to the other coil. Formed from the plate - a thin iron plates insulated in such a way that the stacking.


2 Current carying circuit (Winding)
Winding consists of insulated copper rod that surrounds the iron core, which when alternating current flows