Electricians' operating and testing manual; a hand book for men in charge of electrical apparatus, repair men, trouble men, lamp trimmers, and electricians generally (1916)
Horstmann, Henry Charles, Tousley, Victor Hugo, 1875- joint author · Chicago, F.J. Drake & co · leaf 149
ns as above the lamps will light up inthe order A, B, C. If the machine at the left movesfaster than the other the lamps will light up in theorder C, B, A and thus give an indication as to whetherthe incoming machine is running too fast or too slow. CHAPTER XII MOTOR OPERATION We have already seen… … Figure 96 One of the best rheostats for this purpose used inconnection with shunt or compound motors is illus-trated in Figure 96. This rheostat is equipped with overload and no voltage releases. Both of theseare necessary to protect the motor properly but it ispossible to operate motors without…
Electrical engineering · Electric testing
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