What is the margin for secondary voltage?

The margin for secondary voltage is typically set at 10% to ensure proper operation and safety in electrical systems. This margin allows for minor fluctuations and variations in voltage due to load changes or other operational factors without compromising the functionality of the equipment or systems that rely on the secondary voltage. Setting the margin at this level helps to minimize the risk of equipment damage and maintain performance within acceptable limits, ensuring that the electrical devices operate efficiently and effectively.

Understanding why this margin is important in practical applications is crucial. A 10% margin provides a balance that acknowledges the need for system reliability while not being overly conservative, which could lead to unnecessary costs or inefficiencies in the system.