Electrical installations of electric light, power, traction and industrial electrical machinery (1902)
Kennedy, Rankin, d. 1917 · Edinburgh T.C. & E.C. Jack · leaf 76
g the magnetism, didnot fall in proportion to the fall in current, so that to bring thepointer from a higher to a lower reading we had to reduce thecurrent more than was indicated by the pointer to bring it to 10.In the second place, wereduced the magnetismby the switching out,and upon switching… … Fig. 57 if we take a series of readings from zero, going up step by stepto full load, the readings will be correct, but if we take readingsfrom full load step by step downwards the readings will be wrong.However, by making the iron plates very thin and very soft—ofthe thinnest annealed ferrotype…
Electrical engineering · Electric power
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