Electric Wiring And Lighting ..
Electric Wiring And Lighting ..
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To quickly assess the difficulty of the text, read a short excerpt:
The Series System. This is the most simple of the three; the lamps, as the name indicates, are connected in series as shown in Fig. 45. A constant load is necessary if a constant potential is to be used. If the load is variable, a constant-current generator, or a special regulating device is necessary. Such devices are constant- current transformers and constant-current regulators as applied to alternating-current circuits.
The series system is used mostly for arc and incandescent lamps when ap...plied to street illumination. Its advantages are simplicity and saving of copper. Its disadvantages are high voltage, fixed by the number of lamps in series; the size of the machines is limited since they cannot be insulated for voltage above about 6,000; a single open circuit shuts down the whole system.
Alternating-current series distribution systems are being used to a very large extent. By the aid of special transformers, orj^egulators, Digitized by VjOOQ IC ELECTRIC LIGHTING 47 any number of circuits can be run from one machine or set of bus bars, and apparatus can be built for any voltage and of any size.
What to read after Electric Wiring And Lighting ..?
You can find similar books in the "Read Also" column, or choose other free books by American School of Correspondence to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The Series System. This is the most simple of the three; the lamps, as the name indicates, are connected in series as shown in Fig. 45. A constant load is necessary if a constant potential is to be used. If the load is variable, a constant-current generator, or a special regulating device is necessary. Such devices are constant- current transformers and constant-current regulators as applied to alternating-current circuits.
The series system is used mostly for arc and incandescent lamps when ap...plied to street illumination. Its advantages are simplicity and saving of copper. Its disadvantages are high voltage, fixed by the number of lamps in series; the size of the machines is limited since they cannot be insulated for voltage above about 6,000; a single open circuit shuts down the whole system.
Alternating-current series distribution systems are being used to a very large extent. By the aid of special transformers, orj^egulators, Digitized by VjOOQ IC ELECTRIC LIGHTING 47 any number of circuits can be run from one machine or set of bus bars, and apparatus can be built for any voltage and of any size.
What to read after Electric Wiring And Lighting ..?
You can find similar books in the "Read Also" column, or choose other free books by American School of Correspondence to read onlineMoreLess
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