Prerequisites for Series Coordination

Before using Series Coordination command, you will need to make sure that you have the following prerequisites.

The one-line is adequately modeled along with one source:

  • Both upstream and downstream breakers must exist.
  • If a transformer exists upstream to the breakers, the transformer size and impedance must be specified. This is the basis for calculating available short circuit currents. If there are no upstream transformers, then the utility data must be realistic.

For the design sheet specified in the options, the design sheet in the library must have the necessary data:

  • Desired breakers for the various amp values must be listed. Use manufacturer names and styles, and not “Generic.”
  • The breaker styles listed in the design sheets must have series coordination data in the breaker library.

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