Miller, Kempster Blanchard, 1870-1933 · New York : McGraw publishing company · leaf 122
with the contacts of the clock are placed in series, thewindings of a number of relays, and a battery of 24 volts, as shown.A relay is provided for each battery to be tested and each relay isadapted when operated to close the circuit of its battery through aresistance equal to the average… … 53 56 00 FIG. 76.—CURVES OF BATTERY TESTS, CONST.\NT-RESISTx\NCE METHOD. with the circuit of each battery under test. The jack 0 is so con-nected as to include Between its terminals both the coil and thebattery under test, thus giving the reading of the current when aplug in circuit with the…
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