Question 1

Electrical substation components

Accepted Answer

Power Transformer Instrument Transformer Voltage Transformer Current Transformer Lightning Arrester Wave-Trapper Circuit-Breaker Bus Bar Isolator in Substation Batteries Switchyard Relay Capacitor Bank Carrier current device Insulator

Question 2

What Is Power Transformer

Accepted Answer

The main use of a power transformer is to increase the voltage generated by the power plant and to supply the transmission line. While taking distribution this is used to reduce voltage. Typically transformers up to 10MVA (Mega-volt-Amperes) are filled with oil and kept naturally cool. Similarly, transformers with a capacity of more than 10 MVA (Mega-volt-Amperes) are kept cool with air or water. Usually, such transformers operate at full load. It is isolated from low load conditions. Therefore, power transformer efficiency can be highest in full load mode.

Question 3

What Is Instrument Transformer

Accepted Answer

The main use of an instrument transformer is to reduce high voltage for safe and real value. These values ​​can be calculated by conventional devices. The range of voltage and current is 110 V, and 1A (or) 5A. This transformer is also used to operate AC type relays by providing current and voltage. Such a transformer can be divided into two parts: the current transformer and the voltage transformer.

Question 4

What Is Voltage Transformer

Accepted Answer

This transformer can be defined as it is an instrument transformer used to convert voltage from a superior value to a smaller value.

Question 5

Lightning Arrester

Accepted Answer

This is the first component of an electrical substation to be used to protect the remaining substation component against high voltage. As well as preventing the amplitude and duration of the current flow. The components of the Lightning Arrester are connected in parallel with the earthing which protects the rest of the device. These components divert the flow of current to the ground and therefore protect the conductor of the system as well as the insulation from damage.

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