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https://vkjsolutions.com/ Star delta starter main circuit explanation-தமிழில் || Tamil || All in ONE JANA

A star delta starter is a type of reduced voltage starter. We use it to reduce the starting current of the motor without using any external device or apparatus. This is a big advantage of a star delta starter, as it typically has around 1/3 of the inrush current compared to a DOL starter.

Advantages of Star Delta Starter

The advantages of star delta starters include:

Inexpensive

No heat is produced, or tap changing device needs to be used, hence efficiency increases.

Starting current reduced to 1/3 of direct online starting current.

Produce high torque per ampere of line current.

Disadvantages of Star Delta Starter

The disadvantages of star delta starters include:

Starting torque is reduced to 1/3 of full load torque.

A particular set of motors required.

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