Corona On Electrically Unbalanced Parallel Wires

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CONTENTS

(ii) Easy control. The electrically operated machines have simple and convenient starting, control and operation. For instance, an electric motor can be started or stopped by turning on or off a switch. Similarly, with simple arrangements, the speed of electric motors can be easily varied over the desired range. (iii) Greater flexibility.

نم ةدقع للحاو رمأ ىل رسيو ىردص ىل حرشا بر ىلوق اوهقفي ىناسل

Power lines running parallel to telephone lines produce electrostatic and electromagnetic field disturbances. These fields tend to cause objectionable noises and hums in the apparatus connected to communication circuits. Inductive interference with telephone lines may be avoided by proper transposition of both power lines and telephone lines.

POWER SYSTEMS, INC. Protecta*Lite Systems

in parallel with any of the Ohio Brass insulators Hi*Lite line posts, station posts or suspensions. With the appro-priate hardware for mechanical and electrical connection, the Protecta*Lite is used for new construction, line compaction and other applications. Protecta*Lite surge arresters are installed electrically in parallel with

Austin Isolation Transformer

of in parallel, or used as individual windings. Each of the two secondary windings is designed to carry half the rated kVA output of the transformer. On transformers type D1, a parallel connection provides 115 volts while a series connection provides 230 volts. On a type D2 transformer, a parallel connection provides 230 volts and a series