Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 387
be 87.5 ohms. Megger. Another device for testing resistance is known as amegger. As a rule these have a much wider range than ohmmetersand, for very high resistance measurements, are preferable. Amegger which can be used for resistance measurements as low as1000 ohms and up to 2000 megohms is shown… … Fig. 56. Evershed Megger with Case RemovedCourtesy of James G. Biddle, Philadelphia device whose insulation resistance is to be measured, and the pair ofcoils B B are connected in series and, with resistance, are connecteddirectly across terminals of the dynamo B. When the crank (seeFig. 56) is…
Electrical engineering
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