How to perform a load balance?
Balance, "balancing" or load balancing refers to the same thing, it is the distribution that every technician or electrical engineer must make of the existing loads in an electrical installation, in such a way that the phases that feed it do it more or less in the same proportion for all. If the installation is monophasic it is obvious that no balance will be required. If the installation is two-phase or three-phase by official norm, you have to do it.
The equilibrium of the charges both in preliminary projects and physically (measuring the currents that circulate through the feeder conductors) is always an estimate, it is extremely complicated to balance them and they are kept in constant balance throughout the 24 hours of the day, it is practically impossible since its nature is variable in residences as well as in shops or industries, but it should be done and it should be sought to be as close as possible to the ideal equilibrium where exactly the same amount of current would circulate in the two or in the three phases required for feed them.
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The allowed imbalance must not exceed 5%, which means that the total loads connected to each Phase of a two-phase or three-phase system must not be different from each other by more than 5%.
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