What is a start up transformer?

A startup transformer is used for more than plant start up. Using a separate transformer to supply the plant allows operation of all equipment in the plant weather the plant is generating or not.

What is the purpose of a power plant transformer?

A transformer is an electrical device that trades voltage for current in a circuit, while not affecting the total electrical power. This means it takes high-voltage electricity with a small current and changes it into low-voltage electricity with a large current, or vice versa.

What is the purpose of transformers at power line substations?

When electricity is generated at a power plant, transformers boost the voltage from a few thousand up to hundreds of thousands for purposes of long-distance transmission. As these wires reach points called power substations, transformers reduce the voltage to under 10,000 volts.

Why is a transformer used to connect a generator?

Unit transformers (UT), directly connects the system (high voltage consumer, grid etc.) and the generator. When these types of transformer transform the generator voltage step up to transmission voltage then called as Generator step-up (GSU) transformers.

How does step up transformer work?

When a transformer steps up voltage, current is stepped down. A step up transformer at the power station steps up the voltage and consequently steps down the current. Transmitting small current greatly reduces heat lost in the cables, which in turn reduces the number of power stations needed.

What is the purpose of a transformer and how does it work?

A transformer is an electrical apparatus designed to convert alternating current from one voltage to another. It can be designed to “step up” or “step down” voltages and works on the magnetic induction principle.

What is the importance of transformer and generator to industry?

7.1 Phase to phase and earth fault protection Earth fault protection of the LV windings of the generator transformer, the HV windings of the unit transformer and the connections between, is included in the stator earth fault protection (see Sections 6.1 and 6.2 of this chapter, ‘Generator stator earth faults’).

How does a generator and transformer work?

Generator and Transformer: An Introduction These two devices work based on Faraday’s law of electromagnetic induction principle. The “Generators” generate current, and transformers convert between current and voltage.