International Library of Technology · Scranton, International Textbook Co. · leaf 335
es the air andconfines the arc to thesmall space between theterminals. When thearc tends to follow thedischarge, the smallspace is soon filled withthe vapor of the me-tallic electrodes thatwill not support com-bustion, and the arc isput out. The connec-tions of the arrester arevery simple, one… … 37. Magnetic Blow-Oiit Arresters.—Fig. 46 shows alightning arrester that has been used extensively by the General Electric Companyfor low-pressure direct-cur-■rent circuits. It is of themagnetic blow-out type,i. e., the arc that fol-lows the discharge is extin-guished by forcing it acrossa magnetic…
Electrical engineering
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