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Transformer voltage regulation refers to the ability of a distribution transformer to maintain a consistent output voltage despite fluctuations in the load current. It is an important parameter indicating the transformer's efficiency and its effectiveness in delivering stable power to consumers.

Voltage regulation is typically expressed as a percentage, calculated by comparing the no-load voltage to the full-load voltage. A lower percentage indicates better voltage regulation.

To improve voltage regulation, we may employ techniques such as:

1. Installing tap-changing mechanisms to adjust the transformer's output voltage.

2. Using voltage regulators or automatic tap changers to maintain a constant output voltage.

3. Upgrading transformers to more efficient designs with improved winding technology.

4. Implementing load management strategies to balance loads across distribution networks.

5. Enhancing power factor correction by adding capacitors to compensate for inductive loads.

Maintaining good voltage regulation is crucial for ensuring the quality and reliability of the electrical supply, preventing equipment damage due to overvoltage or undervoltage conditions, and promoting energy efficiency.