Switchboards for Power, Light and Railway Service: Direct and Alternating Currents, High and Low Tension |
З цієї книги
Сторінка 11
This device is simply a resistance , or rheostat , and is called a field regulator . If
the voltage of the generator is too high , a sufficient portion of the regulator
resistance is thrown into the circuit of the generator field coils to bring it down to
the ...
This device is simply a resistance , or rheostat , and is called a field regulator . If
the voltage of the generator is too high , a sufficient portion of the regulator
resistance is thrown into the circuit of the generator field coils to bring it down to
the ...
Сторінка 20
1 it will be noticed that the ammeter is placed so that all the current of the
generator passes through it , but the voltmeter is in a circuit of its own , between
the wires N and P . The ammeter is an instrument of very low resistance , and as
it ...
1 it will be noticed that the ammeter is placed so that all the current of the
generator passes through it , but the voltmeter is in a circuit of its own , between
the wires N and P . The ammeter is an instrument of very low resistance , and as
it ...
Сторінка 21
Leave room behind board . passes through the voltmeter is very small , owing to
the fact that it is wound with fine wire and its resistance is very high . In Fig . 11
the voltmeter wires connect with the busses g and h , but these , as will be found
by ...
Leave room behind board . passes through the voltmeter is very small , owing to
the fact that it is wound with fine wire and its resistance is very high . In Fig . 11
the voltmeter wires connect with the busses g and h , but these , as will be found
by ...
Сторінка 31
As m and m ' are of the same resistance , or nearly so , in generators of the same
size , the current coming through wire N will divide upon reaching n , one half
passing to m , by wire a , and the other half to m ' , by wire a ' . Through wires b
and ...
As m and m ' are of the same resistance , or nearly so , in generators of the same
size , the current coming through wire N will divide upon reaching n , one half
passing to m , by wire a , and the other half to m ' , by wire a ' . Through wires b
and ...
Сторінка 73
... the bars may not rise to such a degree as to materially increase the electrical
resistance they are laminated so as to increase the radiating Figure 30 .
Increasing radis surface ; hence the construction shown in ating surface . Figs .
30 and 31 .
... the bars may not rise to such a degree as to materially increase the electrical
resistance they are laminated so as to increase the radiating Figure 30 .
Increasing radis surface ; hence the construction shown in ating surface . Figs .
30 and 31 .
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Загальні терміни та фрази
alternating ammeter amperes armature arranged arrester become blade break bus bars busses called circuit breaker closed coils complete Concrete connected construction contacts Contains controlled cross Derry Collard desired devices diagram direction distributing edition Electric engines entirely equalizing fact feed field Figure four fully gives ground heat illustrated increased independent indicate insulation lamps lead light located lower machine magnet main switch manner manufacture means mechanical metal necessary nected operation panel parallel passes phase placed plugs position practical prevent reduced regulator rent resistance seen separate short shown in Fig shows shunt side simple single steam street strength surface switch switchboard terminals throw tion transformers turned voltage voltmeter wires
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Бібліографічна інформація
| Назва | Switchboards for Power, Light and Railway Service: Direct and Alternating Currents, High and Low Tension |
| Автор | William Baxter |
| Видання | 2 |
| Видавець | Norman W. Henley, 1910 |
| Оригінал із | Мічиганський університет |
| Оцифровано | 25 трав. 2007 |
| Обсяг | 192 стор. |
| Експортувати бібліографічний опис | BiBTeX EndNote RefMan |