Related Questions

Two generators A and B have 6 poles each. Generator A has wave wound armature while generator B has lap wound armature. The ratio of the induced e.m.f. is generator A and B will be
Armature reaction is demagnetizing in nature due to a purely capacitive load in the synchronous generator.
What is the effect of demagnetizing component of armature reaction?
The e.m.f. induced in the armature of a shunt generator is 600 V. The armature resistance is 0.1 ohm. If the armature current is 200 A, the terminal voltage will be
Armature reaction is demagnetizing in nature due to purely lagging load.
Armature reaction is purely demagnetizing in nature due to a capacitive load in the synchronous motor.
Armature reaction in a machine is demagnetizing due to _________
In a turbopump system using a gas generator cycle, the flame temperature in the separate gas generator where a small portion of overall propellant is burned is _________ compared to the main gas generator and its mixture ratio is _________ compared to that of the main gas generator.
For the reaction, A = X + Y, the respective concentrations are CA, CX and CY. The forward reaction rate constant is kf and the backward reaction rate constant is kb. Choose the correct statement from the following:
P. At equilibrium, kf CA > kB CxCy
Q. If the reaction is irreversible than, kb CXCY = 0
R. The backward reaction rate will essentially be first order, if the forward reaction rate is first order.
S. Activation energy for the first order forward reaction will be independent of temperature.
For a given compound DC machine, Net field current obtained from characteristic is equal to 7.5 A, where shunt field current is equal to 5 A, armature current is 505 A, demagnetizing current equal to 0.95 A and shunt field winding of 1000 turns at rated speed of 1000 rpm. What will be the series field turns?