What is the method used to determine the capacity of a closed bank?

The method to determine the capacity of a closed bank is based on the percentage of the total open bank. This approach involves understanding how much of the overall capacity is being utilized and how that relates to the closed bank's performance. Essentially, a “closed bank” refers to a configuration of electrical components where certain parts may be disconnected or inactive, and evaluating it in relation to an “open bank” allows for better assessment of operational efficiency and load handling.

Using the percentage of the total open bank provides a clear metric as it quantifies the available capacity in terms of operational limits and expected performance under specific conditions. This method helps technicians and engineers estimate how much load the closed bank can sustain without causing strain or operational issues.

Other methods listed, such as measuring voltage or referring to manufacturer specifications, don’t directly assess the effective capacity in real-world operational contexts and may not take into account dynamic factors such as customer demand and actual load conditions. The calculation based on customer demand focuses more on specific usage patterns rather than an overall capacity measurement, which is vital when assessing a closed bank's operational limits.