A d.c. series motor is running whith a speed of 800 r.p.m. while taking a current of 20 A from the supply. If the load is changed such that the current deawn by the motor is increased to 50 A , calculate the speed of the motor on new load . The armature and series field winding resistances are 0.2 ohm and 0.3 ohm respectively . Assume the flux

Q: 4. A three-phase A-connected six-pole winding is installed in 36 slots on a stator. There are 150…

A: Introduction A three-phase delta-connected system is a type of electrical power distribution…

Q: A 440 V d.c. Armature resistance of shunt motor is 0.25 Ω and field winding resistance is 220 Ω. A…

A: Solution: Given data; V =440 v, Armature resistance Ra=0.25 Ω, shunt resistance Rsh=220 Ω, Load…

Q: A dc generator is run at 500 rpm. The eddy current losses and hysteresis losses are found to be 100…

A:

Q: A DC generator feeds a load of current 20 A and voltage 220 V. Calculate the electrical motive force…

A: Load current IL= 20 A Load Voltage VL = 220 V Resistance of armature Ra= 0.02 Resistance of field…

Q: The armature of a shunt generator has 0.08-ohm effective resistance. Each brush has an effective…

A: In a shunt generator is having, Armature resistance, Ra=0.08 Ω. Resistance of each brush, Rb=0.02 Ω…

DC Generator

An electromechanical machine which converts input mechanical energy to respective output electric energy is called a generator.