A.C. voltage stabilisers A new range of a.c. voltage stabilisers, with outputs from 300 VA to 6 kVA, and designed for use with any ... In the 300 VA type, shown in our illustration, stabilisation is effected by two transformers connected in series, the first having an ... with part of the main transformer winding. any slight variation in secondary voltage being eliminated by a bridge circuit and amplifier. A safety relay automatically reduces the secondary voltage if this rises above a certain level.
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