Electric Traction: A Practical Handbook on the Application of Electricity as a Locomotive PowerWhittaker and Company, 1903 - 453 стор. |
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Electric Traction: A Practical Handbook on the Application of Electricity as ... John Hall Rider Попередній перегляд недоступний - 2014 |
Electric Traction: A Practical Handbook on the Application of Electricity as ... John Hall Rider Попередній перегляд недоступний - 2015 |
Загальні терміни та фрази
accumulators alternating current ampères apparatus armature arrangement battery Board of Trade boiler bond booster bracket arms brake brushes bus-bars cables carried cells centre slot charged circuit breaker commutator conductor tees connected construction controller copper current motors curve diagram diameter Diatto direct current draw-bar pull dynamo electric railways electric traction energy engine fall of pressure feeder fish-plates fixed girder rail groove guard wires inches insulated joint length lighting and traction load machines magnet means metal method miles per hour motor-generators necessary obtained ordinary output overhead wire parallel passengers pipes plant plough points position posts practically pull-off regulating revolutions per minute road rotary transformer running shown in Fig skate slot rails speed station steam steel stud sub-stations supply switch gear three-phase torque track rails tramway transformers trolley arm trolley wire truck uninsulated usually volts water-tube boiler wheels winding yokes
Популярні уривки
Сторінка 392 - ... for the purpose of preventing disturbance by electric induction. In any case in which the company withhold their approval of any such apparatus the owners may appeal to the Board of Trade, who may, if they think fit, dispense with such approval.
Сторінка 387 - lines" on public roads ; for regulating the use of electrical power ; for preventing fusion or injurious electrolytic action of or on gas or water pipes or other metallic pipes, structures or substances; and for minimising as far as is reasonably practicable injurious interference with the electric wires, lines, and apparatus of parties other than the Company, and the currents therein, whether such lines do or do not use the earth as a return.
Сторінка 389 - ... 3. Where any rails on which cars run or any conductors laid between or within three feet of such rails form any part of a return, such part may be uninsulated. All other returns or parts of a return shall be insulated, unless of such sectional area as will reduce the difference of potential between the ends of the uninsulated portion of the return below the limit laid down in Regulation 7. 4. When any uninsulated conductor laid between or within three feet of the rails forms any part of a return,...
Сторінка 390 - The said resistance shall be such that the maximum current laid down in Regulation 6 (i.) shall produce a difference of potential not exceeding one volt between the terminals. The indicator shall be so constructed as to indicate correctly the current passing through the resistance when connected to the terminals by the insulated wire beforementioned.
Сторінка 394 - Neither conductor shall otherwise be permanently connected with earth. (g.) The conductors shall be constructed in sections not exceeding one-half a mile in length, and in the. event of a leak occurring on either conductor that conductor shall at once be connected with the negative pole of the dynamo, and shall remain so connected until the leak can be removed.
Сторінка 392 - ... 10. The insulation of the line and of the return when insulated, and of all feeders and other conductors, shall be so maintained that the leakage current shall not exceed one hundredth of an ampere per mile of tramway.
Сторінка 392 - The insulation resistance of all continuously insulated cables used for lines, for insulated returns, for feeders, or for other purposes, and laid below the surface of the ground, shall not be permitted to fall below the equivalent of 10 megohms for a length of one mile.
Сторінка 388 - ... pulsation. 2. One of the two conductors used for transmitting energy from the generator to the motors shall be in every case insulated from earth, and is hereinafter referred to as the "line"; the other may be insulated throughout, or may be uninsulated in such parts and to such extent as is provided in the following regulations, and is hereinafter referred to as the "return.
Сторінка 397 - Authority of any of the districts through which the said tramways pass, inspect such engines or carriages used on the tramways, and the machinery therein, and may, whenever they think fit, prohibit the use on the tramways of any of them which in their opinion are not safe for use.
Сторінка 400 - A printed copy of these regulations and bye-laws shall be kept in a conspicuous position inside of each carriage in use on the tramways. Penalty. NOTE. — Any person offending against or committing a breach of any of these bye-laws is liable to a penalty not exceeding forty shillings.