Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 113
. What is the object of the overload trip? Ans. It is intended to open the circuit when the currentexceeds a predetermined value. 1,632 HA WKINS ELE CTRIC1T Y Ques. What modifications are made in the mechanismshown in the elementary diagrams? Ans. Sometimes a latch is used in place of the toggle… … Figs. - . -h autorr..•• mechanism : maftnet and latch; views showing breed ns, and essi Ithe - ■ latch as shown, the .. which enpapes the arm to redoc* 6 In operation, ■ltua the eedsa predete-mined limit the mapnet attracts the tad arm. The brush contacts whichaway, and assisted by gravity, the arm…
Electrical engineering
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