Electrical installations of electric light, power, traction and industrial electrical machinery (1902)
Kennedy, Rankin, d. 1917 · Edinburgh T.C. & E.C. Jack · leaf 85
r bolting orpinching into the wire.An illustration of thisresistance is here shownin Fig. 79. It consistsof thin plates of highresistance metal, theplates giving large cool-ing surfaces. The ter-minals TT are massive,so that they also tendto cool ; but in somecases, owing to bad contact between the… … Fig. 79 Shunted Instruments Fig. 80 illustrates the Siemens resistances for their movino- coilinstruments. No. i is for currents from 75 to 1000 amperes. Ithas one tier of plates, and two massive bolts and nuts for connec-tions. No. 2 has two tiers of plates, for currents from 1200 to 2000amperes,…
Electrical engineering · Electric power
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