Essentials of Alternating Currents
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In our eReader you can find the full English version of the book. Read Essentials of Alternating Currents Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Essentials of Alternating Currents
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If the motor in Fig. 132 were a unity-power-factor motor requiring 2 kw. and there were 720 lamps of 60 watts each, so connected to the neutral as to balance the system, what current would flow in the neutral? Construct diagram similar to Fig. 132 to show arrangement of lamps and neutral using one lamp to represent a group. State number of lamps tliis representative lamp stands for.
Prob. 30-7. A four-wire three-phase system is to be used to operate five three-phase 230-volt motors operated at ...unity power factor, and six hundred fiftj'^-watt lamps. Each motor takes 3 kw.
(a) For what voltage should the lamps be ordered?
(6) What current flows in each main if system is balanced?
(c) Show by diagram similar to Fig. 132 how the load should be distributed.
(6) Loads of different power factor. Let us replace the unity- power-factor three-phase motor in Fig. 132 with a three-phase motor carrying the same current of 10 amperes in the motor coils but at a power factor of 80 per cent lagging, and leave the same lamp load connected to the Hue.
What to read after Essentials of Alternating Currents?
You can find similar books in the "Read Also" column, or choose other free books by Timbie, W. H. (William Henry), B. 1877 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
If the motor in Fig. 132 were a unity-power-factor motor requiring 2 kw. and there were 720 lamps of 60 watts each, so connected to the neutral as to balance the system, what current would flow in the neutral? Construct diagram similar to Fig. 132 to show arrangement of lamps and neutral using one lamp to represent a group. State number of lamps tliis representative lamp stands for.
Prob. 30-7. A four-wire three-phase system is to be used to operate five three-phase 230-volt motors operated at ...unity power factor, and six hundred fiftj'^-watt lamps. Each motor takes 3 kw.
(a) For what voltage should the lamps be ordered?
(6) What current flows in each main if system is balanced?
(c) Show by diagram similar to Fig. 132 how the load should be distributed.
(6) Loads of different power factor. Let us replace the unity- power-factor three-phase motor in Fig. 132 with a three-phase motor carrying the same current of 10 amperes in the motor coils but at a power factor of 80 per cent lagging, and leave the same lamp load connected to the Hue.
What to read after Essentials of Alternating Currents?
You can find similar books in the "Read Also" column, or choose other free books by Timbie, W. H. (William Henry), B. 1877 to read onlineMoreLess
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