Switchboards for Power, Light and Railway Service, Direct and Alternating Current, High and Low TensionDerry-Collard Company, 1906 - 192 стор. |
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Сторінка 33
... practical examples of boards that have actually been made , and by explaining the conditions they have to fulfill , throw light upon the subject that will serve to show the proper course to pursue to obtain the best results . In some ...
... practical examples of boards that have actually been made , and by explaining the conditions they have to fulfill , throw light upon the subject that will serve to show the proper course to pursue to obtain the best results . In some ...
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William Baxter. PUBLICATIONS OF The Derry - Collard Co. NEW YORK . PRACTICAL PAPER SERIES TURNING AND BORING TAPERS . Fred H. Colvin . A plainly written explanation of a subject that puzzles many a mechanic . This explains the different ...
William Baxter. PUBLICATIONS OF The Derry - Collard Co. NEW YORK . PRACTICAL PAPER SERIES TURNING AND BORING TAPERS . Fred H. Colvin . A plainly written explanation of a subject that puzzles many a mechanic . This explains the different ...
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... PRACTICAL PERSPECTIVE . Richards - Colvin . Shows just how to make all kinds of mechanical drawings in the only practical perspective isometric . Makes every- thing plain so that any mechanic can understand a sketch or drawing in this ...
... PRACTICAL PERSPECTIVE . Richards - Colvin . Shows just how to make all kinds of mechanical drawings in the only practical perspective isometric . Makes every- thing plain so that any mechanic can understand a sketch or drawing in this ...
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... practical in every way . ( $ 1.00 . ) AMERICAN STEEL WORKER . E. R. Markham . The standard work on hardening , tempering and anneal- ing steel of all kinds . A practical book for the machinist , tool maker or superintendent . Shows just ...
... practical in every way . ( $ 1.00 . ) AMERICAN STEEL WORKER . E. R. Markham . The standard work on hardening , tempering and anneal- ing steel of all kinds . A practical book for the machinist , tool maker or superintendent . Shows just ...
Сторінка
... practical facts , such as life of rivet- ing punches and dies , work done per day , allowance for bending and flanging sheets and other data that means dollars to any railroad man . 421 pages . 334 illustrations . Six folding plates ...
... practical facts , such as life of rivet- ing punches and dies , work done per day , allowance for bending and flanging sheets and other data that means dollars to any railroad man . 421 pages . 334 illustrations . Six folding plates ...
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alternating current ammeter amperes angle armature arranged branch circuits break switches bus bars cables circuit breaker circuit connections close the circuit conducting bars conductors connected with bus construction cross section current passes current strength Derry Collard Derry Collard Co desired devices diagram distributing circuits double throw Electric equalizing bus equalizing wires erator feed field coils field regulator Figure four fuse ground detector hence increased independent Independent Circuits instruments insulation lamps lever light board lightning arrester located lower machines magnet main switch marble slabs means meter nected Non-arcing metals operated panel Phase Switchboard rent resistance rheostats safety fuse seen series coils set of busses short circuit shown in Fig shows shunt single phase sockets spark street mains switch blade switch S2 synchronizing three phase three-wire system tion transformers upper vapor vertical voltage voltmeter volts wattmeter Westinghouse