Wiring Diagrams of Electrical Apparatus And Installations
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In our eReader you can find the full English version of the book. Read Wiring Diagrams of Electrical Apparatus And Installations 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 Wiring Diagrams of Electrical Apparatus And Installations
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To quickly assess the difficulty of the text, read a short excerpt:
— Connections of a dial rheostat resister arranged with contact buttons, over the surface of which the contact arm glides.
Fig. 229. — Two plates of the type shown in Fig. 228 connected in series.
146 WIRING DIAGRAMS OF ELECTRICAL APPARATUS Fig. 230. — Connections of a two-arm dial rheostat resister. This rheostat is equipped with two arms, one short and one long; the short one connects the line with the inner circle of contact buttons, while the long one is insulated from the short one and con...nects the outer circle with the intermediate circle. The short arm is fastened rigidly to the hand-wheel.
When both arms are in line and on the first point, all resistance is short-circuited. Rotation of the hand-wheel to the right carries the short arm around, leaving the long arm in its original position. When the short arm has made a half revolution, a projection on it strikes a pin in the long arm and carries it along, inserting the resister connected to the outer buttons. Move- ment in the opposite direction causes the short arm to carry the long arm with it.
What to read after Wiring Diagrams of Electrical Apparatus And Installations?
You can find similar books in the "Read Also" column, or choose other free books by Mcgraw-Hill to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
— Connections of a dial rheostat resister arranged with contact buttons, over the surface of which the contact arm glides.
Fig. 229. — Two plates of the type shown in Fig. 228 connected in series.
146 WIRING DIAGRAMS OF ELECTRICAL APPARATUS Fig. 230. — Connections of a two-arm dial rheostat resister. This rheostat is equipped with two arms, one short and one long; the short one connects the line with the inner circle of contact buttons, while the long one is insulated from the short one and con...nects the outer circle with the intermediate circle. The short arm is fastened rigidly to the hand-wheel.
When both arms are in line and on the first point, all resistance is short-circuited. Rotation of the hand-wheel to the right carries the short arm around, leaving the long arm in its original position. When the short arm has made a half revolution, a projection on it strikes a pin in the long arm and carries it along, inserting the resister connected to the outer buttons. Move- ment in the opposite direction causes the short arm to carry the long arm with it.
What to read after Wiring Diagrams of Electrical Apparatus And Installations?
You can find similar books in the "Read Also" column, or choose other free books by Mcgraw-Hill to read onlineMoreLess
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