. Electrical news and engineering. o-motion of economy and efficiency. Such industrial alliancewould, moreover, make it possible to carry out complete in-stallations within the allied group. An alliance of this naturehad already been arranged with Messrs. Dick. Kerr and , in the field of dynamo installations in all its ramifica-tions and other alliances were contemplated. July 15, 1918 THK ELECTRICAL N 39 A Compression Chamber Arrester for 10,000 and 13,200Volt Circuits. To protect pnle type traiisfornicrs >mi I(I,(IIIii and i;;,;.ii(ivolt distrilnitins lines, the Canadian (jene
. Electrical news and engineering. o-motion of economy and efficiency. Such industrial alliancewould, moreover, make it possible to carry out complete in-stallations within the allied group. An alliance of this naturehad already been arranged with Messrs. Dick. Kerr and , in the field of dynamo installations in all its ramifica-tions and other alliances were contemplated. July 15, 1918 THK ELECTRICAL N 39 A Compression Chamber Arrester for 10,000 and 13,200Volt Circuits. To protect pnle type traiisfornicrs >mi I(I,(IIIii and i;;,;.ii(ivolt distrilnitins lines, the Canadian (jeneral I-lectric Com-pany has ijlaced on the market a uniipie form of cmiipressorcliamlier, multigap liglifnint;- arrester in which is embodiedthe slumt resistance principle. Fig. 1. Gaps of a simple,tljough rather unusual design, are connected in sliunt witliand mounted on, the resistance rods from whicli tliey aresuitably insulated. The arrangement of the gaps and resist-ances is shown in Figs. 3. :; and 4. Protection from the wea-. Fig. 1 Fig. 2 Fig. 3 ther is obtained l)y enclosing the gaps and resistances in aporcelain tube. By reason of this combination of gaps andresistances the arrester will discharge at low rises in poten-tial, is sensitive to lightning over a wide range of frequency,and following the lightning discharge, quickly cuts off thegenerator current and jirevents grounds or shorts. Several paths for the lightning discharge through thearrester are offered by the four units of shunting resistance
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