Kumar, S.

dc.contributor.author	Kumar, S.
dc.date.accessioned	2014-12-01T08:49:17Z
dc.date.available	2014-12-01T08:49:17Z
dc.date.issued	1961
dc.identifier	M.Tech	en_US
dc.identifier.uri	http://hdl.handle.net/123456789/12566
dc.guide	Ghosh, C. S.
dc.description.abstract	While finding out the transient response of a direct current machine the field winding is represented by a resistance and an inductive react-ance of constant magnitude. The differential equa-tion of voltage around the field circuit is easily solved corresponding to any type of input, either step, rate or sinusoidal. The response in case of a step input or discontinuity is found to be expon-ential. This however, gives the response only app-roximately. The field winding changes its inducta-nce as the field current changes depending upon the saturation. Change in inductance can be found from the magnetisation characteristics of the winding. In the differential equation which is of the form Lf dLL + Rf if = V, Lg changes with if and hence dt we obtain a differential equation with variable coefficients. 3 methods of solution have been out- lined viz. (a) Point by point solution (b) Method of graphical integration. and (c) Actual solution of the differential equation representing magnetisati. on curve by an approximate equation. The method involving use of differential analyser has not been indicated as its use is limited by the availability of such a machine. In chapter I	en_US
dc.language.iso	en	en_US
dc.subject	ELECTRICAL ENGINEERING	en_US
dc.subject	FIELD WINDING	en_US
dc.subject	TRANSIENT RESPONSE	en_US
dc.subject	MAGNETISATION CHARACTERISTIC	en_US
dc.title	"EXCITER RESPONSE- ITS CALCULATIONS AND FIELD OF USE	en_US
dc.type	M.Tech Dessertation	en_US
dc.accession.number	62403	en_US