Which is the top conductor of EHV transmission line?

A guard wire or earth wire is the topmost conductor in high-voltage transmission lines. It is used mainly to protect lines from lightning. If in case lightning struck, then it carries the excessive current inrush to ground.…

Where are shell type and core type transformer used? Why?

The core type is used for high-voltage applications like autotransformers and power transformers. Shell type is used for low-voltage applications like transformers in an electronic circuit. Cooling is better in core type, b…

Where is a pin-type insulator used?

A pin insulator is a device that isolates a wire from a physical support such as a pin (a wooden or metal dowel of about 3 cm diameter with screw threads) on a telegraph or utility pole. It is a formed, single layer shape …

Ideal Transformer

What is an Ideal Transformer?       A transformer with no core loss, an ohmic resistance & no leakage flux is called ideal transformer. The ideal transformer is free from all types of losses. The ideal transformer is also cal…

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