... the currents in the moving coils of the armature have also their effect on the resultant field. There are in general two independent variables in a dynamo machine, the current around the magnets and the current in the armature, and the relation of... Nature - Page 21edited by - 1886Full view - About this book
| Electronic journals - 1892
...the current in the armature, and the relation of EMP to currents is fully represented by a surface. **In well-constructed machines the effect of the latter...to a minimum, but it can be by no means neglected.** When a section of the armature coils is commutated it must inevitably be momentarily short-circuited,... | |
| Electric engineering - 1887
...the current in the armature, and the relation of EMF to currents is fully represented by a surface. **In well-constructed machines the effect of the latter...to a minimum, but it can be by no means neglected.** When a section of the armature coils is commutated it must inevitably be momentarily short-circuited,... | |
| Sir Norman Lockyer - Electronic journals - 1886
...commutation. The ratio of the two elongations is the value of v. The distribution of the waste field (v - i)I **was roughly ascertained in a similar manner. The currents...upon the lead given to the brushes. Denote this by** A, which we may also regard as an independent variable, as it is subject to arbitrary adjustment. If... | |
| Electronic journals - 1886
...the fixed coils round the magnets are not the only magnetising forces applied in a dynamo machine. **The currents in the moving coils of the armature have...variable, as it is subject to arbitrary adjustment. If** I=F(4nmc) be the characteristic curve when no current passes through the armature, then 1+^=1 4XmC... | |
| Electronic journals - 1886
...the fixed coils round the magnets are not the only magnetising forces applied in a dynamo machine. **The currents in the moving coils of the armature have...upon the lead given to the brushes. Denote this by** X, which we may also regard as an independent variable, as it is subject to arbitrary adjustment. If... | |
| Sir Norman Lockyer - Science - 1886
...applied in a dynamo-machine. The currents in the moving coils of the armature have also their efifect **upon the resultant field. In well-constructed machines...upon the lead given to the brushes. Denote this by** Л, which we may also regard as an independent variable, as it is subject to arbitrary adjustment.... | |
| Electric engineering - 1892
...current in the armature — and the relation of EMF to currents is fully represented by a surface. **In well-constructed machines the effect of the latter...to a minimum, but it can be by no means neglected.** When a section of the armature coils is corn-mutated it must inevitably be momentarily short-circuited;,... | |
| Electronic journals - 1892
...the current in the armature, and the relation of EMF to currents is fully represented by a surface. **In well-constructed machines the effect of the latter...to a minimum, but it can be by no means neglected.** When a section of the armature coils is commutated it must inevitably be momentarily short-circuited,... | |
| John Hopkinson - Electrical engineering - 1893 - 249 pages
...armature; and the relation of EMF to currents is fully represented by a surface. In well constructed **machines the effect of the latter is reduced to a minimum, but it can be by no means neglected.** When a section of the armature coils is commutated, it must inevitably be momentarily short circuited... | |
| John Hopkinson - Dielectrics - 1901
...the current in the armature ; and the relation of EMF to currents is fully represented by a surface. **In wellconstructed machines the effect of the latter...to a minimum. but it can be by no means neglected.** When a section of the armature coils is commutated, it must inevitably be momentarily short circuited... | |
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