Maintaining upper total power limit for group of electrical loads when drawing power from supplier involves switching off load(s) at least temporarily depending on total power trend

摘要

The method involves detecting (20) the actual total power for the group of loads (10,12,14,16) and the trend of the total power over a measurement period and switching off at least one load at least temporarily when it can be predicted from the trend computation that the mean actual total power will exceed a definable upper limit at the end of the measurement period, whereby the limit value is derived from a given function An Independent claim is also included for an arrangement for maintaining an upper total power limit for a group of electrical loads when drawing electrical power from a power supply company.