Arithmetic of Electricity: A Practical Treatise on Electrical Calculations of All Kinds Reduced to a Series of Rules, All of the Simplest Forms, and Involving Only Ordinary Arithmetic ...N.W. Henley Publishing Company, 1909 - 162 стор. |
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Сторінка 19
... SHUNT CIRCUITS . A single conductor , from one terminal of a gener- ator may be divided into one or more branches which may reunite before reaching the other ter- minal . Such branches may vary widely in resist- ance . Rule 8. In ...
... SHUNT CIRCUITS . A single conductor , from one terminal of a gener- ator may be divided into one or more branches which may reunite before reaching the other ter- minal . Such branches may vary widely in resist- ance . Rule 8. In ...
Сторінка 22
... shunt circuits , the resistance of the com- bined shunts is expressed by the reciprocal of the sum of the reciprocals of the resistances . EXAMPLE . Two leads of a 50 volt circuit ( leads differing in potential by 50 volts ) , are ...
... shunt circuits , the resistance of the com- bined shunts is expressed by the reciprocal of the sum of the reciprocals of the resistances . EXAMPLE . Two leads of a 50 volt circuit ( leads differing in potential by 50 volts ) , are ...
Сторінка 23
... shunt or branch of some resistance is carried around it , and a resistance coil intervenes between the united branches and one of the main leads . The resistance of the coil is 20 ohms . What should the resistance of the shunt be ? 3 ...
... shunt or branch of some resistance is carried around it , and a resistance coil intervenes between the united branches and one of the main leads . The resistance of the coil is 20 ohms . What should the resistance of the shunt be ? 3 ...
Сторінка 24
... shunt coil and motor . The conductance of the motor is equal to the reciprocal of 10 which may be expressed as or as . The conductance of the shunt coil must therefore be 8 % = 73 % = 30 mho . The reciprocal of this gives the resistance ...
... shunt coil and motor . The conductance of the motor is equal to the reciprocal of 10 which may be expressed as or as . The conductance of the shunt coil must therefore be 8 % = 73 % = 30 mho . The reciprocal of this gives the resistance ...
Сторінка 107
... shunt winding Sir William Thompson's rule . is that the product of armature and field resistance should equal the square of the external resistance . The latter may be taken ( Ohm's law ) as equal to 1 ohm . Properly the armature resist ...
... shunt winding Sir William Thompson's rule . is that the product of armature and field resistance should equal the square of the external resistance . The latter may be taken ( Ohm's law ) as equal to 1 ohm . Properly the armature resist ...
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Загальні терміни та фрази
50 cents 50 ohms 50 volts air gaps alternating current ampere turns ance appliances armature core battery C. G. S. units calculated calories capacity cells in parallel cells in series circular mils coefficient of leakage coil conductance conductor copper coulombs cross-sectional area cycles per second difference of potential distance divided drop dynamo efficiency electromotive force energy engines EXAMPLE expressed external circuit factors farad field resistance fractions given gives gram heat developed horse power horse-power inductance internal resistance joules kilogram-meter lamps in parallel leads length lines of force lines per square magnet core magnetic circuit meter microfarad microhms mils in diameter motor multiplied number of cells number of turns Ohm's law ohms resistance permeability permeance proportion ratio of conversion reciprocal reduced reluctance Rule 55 Rules 30 sectional area shunt Solution specific resistance square centimeter square inch tion turns of wire voltage weight wrought iron
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Сторінка 50 - This loss as previously explained, is equal to the square of the current multiplied by the resistance. The...
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