FIELD: electric engineering, possible use in electric motor for automation of technological processes for controlling a group of asynchronous electric motors working in parallel.
SUBSTANCE: composition of a system for controlling a group of electric motors for water pumps includes multi-zone scanning transformer consisting of adders, integrator, relay elements, setting signal source, smoothing filters of, for example, first order, additional relay elements, voltage regulators for smooth launch of asynchronous electric motors, water pumps, draining water main.
EFFECT: increased reliability of operation.
6 dwg
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