16 IV. Alternating system. V. Incandescent system, usual. VI. Arc and incandescent series system, little used. VII. Arc and incandescent series and incandescent multiple, little used. VIII. Arc system. IX. Series-wound dynamo (arc). X. Shunt-wound dynamo (incan- XI. Compound-wound dynamo. "XIII. Closed and open circuit arma :6 tures. XIV. Siemens, Gramme, and alter nator windings. |