the system of distribution of electrical energy under various levels of ongoing tension

摘要

The system is for distribution of electrical supplies to a variety of loads requiring D.C. voltages and liable to interfere with each other due to surges and earth loop currents, resulting from the comparatively high power switching of relays themselves controlled from low power level integrated circuits. The system consists of two separate voltage sources, one high power and one low power, supplying the two circuits, which have some mutual coupling. A one to one ratio transformer having a high coupling factor has its two windings connected in series with the two supply lines such that surges in one produce an opposite effect in the other.