Electrical installations of electric light, power, traction and industrial electrical machinery (1902)
Kennedy, Rankin, d. 1917 · Edinburgh T.C. & E.C. Jack · leaf 42
nometer. And similarly, the ammeter can be used as a low-resistancegalvanometer for thermo-electric tests, and other experiments wherelarge currents and low E.M.F. are used. The instruments shown are expensive and finely got up forcommercial purposes, but the design seems to lend itself to acheap… … FiG. 25.—Lord Kelvins Graded Ammeter ness should be calculated to carry the maximum current withoutsensibly overheating. This may be done from Table of Details of Conductors at endof the chapter. Say the ammeter is for five amperes maximum, areference to the table shows No. 14 wire will carry 5,4…
Electrical engineering · Electric power
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