Star Delta Transformer connection:

This Diagram shows the Star Delta Transformer connection. In this circuit, we use three electric transformers. This circuit diagram is very simple and easy to make. If you want to know more details about this circuit please check our youtube video below the post. Please stay with our website for more updates about electrical electronics and robotics projects gadgets and circuits.

Diagrm of Star to Star Transformer connection:

Components needed For this Project:

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Single Phase Transformer [See Buy Click Amazon]

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Components used to make the Star Delta Transformer connection:

01. Transformer:

The primary voltage of the transformer is 11 KV and the secondary is 0.4 KV high voltage. This is a delta star transformer, the high voltage of this transformer uses a delta connection and the low voltage uses a star connection.11KV power transformers are commonly used in power transmission substations to step down high-voltage transmission to distribution levels. 11KV transformers are more often used in distribution substations and on utility poles to further step-down voltage for supply.

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Frequently asked questions

What is the star-to-delta connection in a transformer?

This type of connection is used, where the primary side requires a neutral terminal so that it can be grounded. The star-delta connection was mainly used in the step-down transformers, which were located at the substation end of the transmission line.

How is a delta transformer connected?

In a delta configuration, the 3 windings were connected end-to-end to form a closed path. A phase was connected to each corner of the delta. Although delta windings often operate ungrounded, a leg of the delta can be center-tapped and grounded, or a corner of the delta could be grounded.

What are the methods of connecting transformers?

Delta-Wye connection is common for the high-voltage and low-voltage applications. For high voltage and low current rating transformers (KVA), the Wye-Wye connection is used. The Delta-Delta connection is used for low voltage and high current flow rating transformers.

Why Delta is used in the transformer?

The low voltage side of the main transformer was triangulated to eliminate the 3rd harmonics. Prevent a large number of harmonics to the system, resulting in power supply grid voltage waveform distortion.

Why the star Delta is earthed?

To have a closed-loop system we are using the earthed system. By using an isolated star-connected system protection of the source from earth fault will be difficult as you cannot have any measurement of neutral current flow an ungrounded system suffers from the following drawbacks.

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Star Delta Transformer connection