Switchboards for Power, Light and Railway Service, Direct and Alternating Current, High and Low TensionDerry-Collard Company, 1906 - 192 стор. |
З цієї книги
Результати 1-5 із 14
Сторінка 21
... vertical position , near the wall , but not so near as to interfere with the thorough inspection of the connections on the back of it . The distance between the wall and the back of the board should be from three to four feet . All the ...
... vertical position , near the wall , but not so near as to interfere with the thorough inspection of the connections on the back of it . The distance between the wall and the back of the board should be from three to four feet . All the ...
Сторінка 70
... vertical row marked SS . The switch S is double throw , and when thrown to the left connects the generators and the main busses , and when thrown to the right connects the street mains with the main busses . The main busses , at both ...
... vertical row marked SS . The switch S is double throw , and when thrown to the left connects the generators and the main busses , and when thrown to the right connects the street mains with the main busses . The main busses , at both ...
Сторінка 80
... vertical angle irons placed at the sides of the board , and intermediate angles located where * By amalgamating the contacts on bus bars or switches with the Harold Brown process and using a thin layer of Plastic Alloy , the contact ...
... vertical angle irons placed at the sides of the board , and intermediate angles located where * By amalgamating the contacts on bus bars or switches with the Harold Brown process and using a thin layer of Plastic Alloy , the contact ...
Сторінка 81
... there will be only two angle bars , one at each side . At the bottom of the board the vertical angle bars are tied together by means of a horizontal bar which is sometimes Use of angle bars . secured in the way shown 81 W ...
... there will be only two angle bars , one at each side . At the bottom of the board the vertical angle bars are tied together by means of a horizontal bar which is sometimes Use of angle bars . secured in the way shown 81 W ...
Сторінка 82
... the marble can be made to rest directly against the vertical angle bars A , but with the arrangement of Fig . 36 there will be a clear space equal to the thickness of the side of the Details of fastening . angle iron , and unless the 82.
... the marble can be made to rest directly against the vertical angle bars A , but with the arrangement of Fig . 36 there will be a clear space equal to the thickness of the side of the Details of fastening . angle iron , and unless the 82.
Інші видання - Показати все
Загальні терміни та фрази
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 four fuse ground detector h Figure hence increased independent instruments insulation lamps lever light board lightning arrester lightning discharge located lower machines magnet main switch marble slabs means meter nected opening the circuit operated panel placed plugs rent resistance rheostats safety fuse seen series coils set of busses short circuit shown in Fig shows shunt sockets spark street mains switch blade switch is closed synchronizing three phase three-wire system tion transformers two-pole upper vapor vertical voltage voltmeter volts wattmeter Westinghouse