A transformer is an electrical device that transforms electrical energy into magnetic energy and vice versa. There are several types of transformers: current, voltage transformer , autotransformer, pulse voltage and current transformer, etc. The TMG 1000 kVA transformer is a power voltage transformer that is used to receive, convert and transmit electric power transmission lines.
How does a transformer work?
It can be seen from the figure that in the transformer TMG 1000 kVA there is a primary winding, a magnetic circuit and a secondary winding. Both the primary and secondary windings envelop the magnetic circuit. If you apply alternating current to the primary winding of the device, then a magnetic field arises around the turns of the winding. The magnetic flux moves along the magnetic circuit and thus reaches and passes through the turns of the secondary winding. Magnetic energy passes into electrical energy, as a result of which an alternating current appears in the secondary winding. Thanks to this simple device, voltage transformation occurs. The transformation ratio is controlled by reducing or increasing the number of turns of the windings.
Design features of transformer TMG 1000 kVA
The transformer tank is made of stainless steel and has a rectangular shape. To increase the area of heat transfer, the walls of the tank are corrugated, the so-called radiator. The tank does not have an expansion oil barrel. The active part of the transformer consists of a magnetic circuit, a primary multilayer winding, a secondary multilayer winding and a high voltage switch. The primary, as well as the secondary, winding can be made in two versions - copper or aluminum. The active part of the transformer is attached to the lid, which makes it convenient to disassemble it for repair purposes. The magnetic circuit is made of electrical steel. There is a tap for transformer oil filling on the tank cap . At the bottom of the tank there is a plug for draining the oil and a ground bolt. A float type oil indicator is mounted on the tank lid, with which you can find out the oil level in the tank. There is also a thermometer indicating the temperature of the oil. Removable high and low voltage leads are also installed there, they are made through porcelain bushings. The tank is mounted on rollers, which makes it possible to move the transformer, both along and across, without much effort.
Specifications
TMG 1000 kVA power transformer is designed to reduce voltage in a three-phase electric network. This is a two-winding transformer that converts electrical energy from high-voltage electric networks with a voltage of 6-35 kV to low-voltage voltage up to a standard of 0.4 kV. The transformer is marked as follows: TMG - 1000/10 U1 - X.
- T - three-phase transformer.
- M - oil cooling.
- G - tight.
- 1000 - power rating, measured in kVA.
- 10 - primary voltage rating, measured in kV, other options are possible: 6 kV and 35 kV.
- U1 - climatic modification, ambient temperature from -40 0 to +40 0 , there can also be 1 from -60 0 to +40 0 .
- X is the value of short circuit and idle losses.
dimensions
- Height H = 1775 mm.
- Length L = 2005 mm.
- Width B = 1240 mm.
- The distance between the terminals of the high voltage A 2 = 230 mm.
- The distance between the phase terminals of the low voltage A 3 = 145 mm.
- The distance between the high-voltage and low-voltage terminals b 1 + b = 180 mm + 200 mm = 380 mm.
- The total weight of the transformer is 3175 kg, including 730 kg of oil.