Hobart, H. M. (Henry Metcalf), 1868-1946 ed · Philadelphia, J. B. Lippincott · leaf 142
1000 hr. Cooper-Hewitt Mercury-vapour Eeo-TiFiER.—This consists of a large glass bulbfilled with mercury vapour and mounted intrunnions so as to be capable qf tiltingthrough a small angle. Into this bulb aresealed four electrodes in the case of a spconverter, and five in the case of a three- phase… … Fig. 9.—Cooper-Hewitt Mercury-vapour Rectifier M and N, Terminals, i, Mercury. L, Continuous-current lead. K, Reactance coil. mercury vapour and the surface of the nega-tive electrode. In order that the valve maybe continuously operating, this current mustnot be allowed to fall to zero, even for…
Electrical engineering
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