Small, Sidney Aylmer, 1876- [from old catalog] · Chicago, F. J. Drake & co · leaf 138
ection for an instant only, but during this time thearrester on the line side of the coil can free the line ofthe charge. The damming up of the surge by the choke coil pro-duces an enormous pressure which helps to force thecharge through the arrester. Question 4. What is the objection to a choke… … Fig. 57. Hour glass Type of High Voltage Choke Coil. Question 5. What are the advantages? Answer. They increase the protection offered by thearrester and even if arrester fails to act the choke coilprotects to some extent by causing a side flash on theline where damage is less expensive than should…
Electricity
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