A long shunt generator delivers 50 A at 500 V at full load. The shunt field, armature and series field resistances are 400 Ω, 0.2 Ω and 0.08 Ω respectively. Iron loss is 1200 W and friction and windage losses total 800 W. Then find the total efficiency of the generator.

Q: 13. A 200V DC Generator has a shunt field resistance of 200ohms. Its field current A) 1A B) 2A C) 3A…

A:

Q: 13. A 200V DC Generator has a shunt field resistance of 200ohms. Its field current A) 1A B) 2A C) 3A…

A: 13. Given data, Terminal voltage V = 200 V Field resistance Rf=200 Ω

Q: Find the resistance of load which takes a power of 10kW from a shunt generator whose external…

A: Power P=10 kW, To Find- The resistance of load (RL).

Q: In DC generators, lap winding is suitable for ) high voltage, high current low voltage, high current…

A:

Q: Increasing the frequency of the supply :will .Decrease the rotor speed at a certain load torqueO…

A:

Q: A dc short shunt compound generator delivers 20 kW to a load at 500 V. The armature, series field…

A: In this question we need to find a power developed in armature .

Q: A 30kW generator has an armature resistance of 0.45 ohms, generates a terminal voltage of 225 V at…

A: 74.27 percent

Q: A 6 pole DC wave wound generator has 21 armature conductors with flux per pole is 29 mWb and the…

A: emf indued E = Flux×speed×no.of conductors60×no. of polesno. of parallel paths Given Flux=29 m Wb…

Q: If we need to use a DC generator witha very good voltage regulation we choose: * DC Generators…

A:

Q: Four compound generators operating in parallel supply a load of 1,000 A. The resistance of series…

A:

Q: The type generator field winding is supplied from the external D.C. source. O Shunt O Self excited o…

A: Seld excited generator does not require addtional power DC supply.

Q: shunt generator has an armature resistance of 12 and field resistance of 80N. Field c xty turns and…

A:

Q: The output of a shunt generator is 66A at 100V. Armature resistance is 0.04Ω and the field…

A:

Q: A 6-pole lap wound generator has 900 conductors. The e.mf induced per one tur being 3 V. the…

A: Given lap connected , So, No. of poles = No. of parallel paths = 6 Given voltage per turn = 3 volts…

Q: A three-phase synchronous generator is rotating at 1500 RPM synchronous speed. The output power of…

A: In this question we will find induced torque in generator...

Q: PZ 4- A 4-pole generator has a wave-wound armature with 722 conductors and the armature current is…

A:

Q: Q10. The rotating machine of Figure Q10 has the following parameters: Lss = 0.18 H, L = 0.06 H, and…

A: Given Source A=2.5 A (DC) Source B =8.5 A(rms), 50 Hz   peak values are Source A=2.5 A Source B=8.52…

Q: The 50kW, 500V short compound DC generator has an armature resistance of 0.06 Ohms, a series field…

A:

Q: Prove that in a DC generator the maximum efficiency is obtained when constant loss is equal to the…

A: Solution: The efficiency of a D.C generator is given by the formula,…

Q: 2. A 36, 60 Hz, 6 pole, wye-connected induction motor is rated at 600 hp (1 hp = 746 W) and 800 V.…

A:

Q: The shunt DC generator gives almost O Constant current O None of these O Constant voltage O Constant…

A:

Q: 1. If the number of poles in a lap wound generator is doubled, then the generated emf will be a)…

A: Given: Number of poles in lap wound generator are doubled.

Q: a. Does the slip increase as the load increases? What is the reason of this? b. What does it mean…

A: (a)  Slip :- It is the difference between the synchronous speed of the motor and the shaft rotating…

Q: Figure 1 shows an electric generator with 3 rotor windings as marked by a-1, b-2 and c-3. A…

A: The objective of the question is to design a 3-phase 3-wire connection for an electric generator…

Q: The shaft of a three-phase synchronous generator is rotating at 3000 RPM synchronous speed. This…

A: In this question , we will find efficiency of generator.....

Q: d. Winding table ( e. Winding diagram (

A: Turn per coil = 1Conductor per slot = 2Commutator segments = 25To create a winding table for a…

Q: tors with fiux per pole is 21 mwbD and the e m.f generated is 63 V, then the speed of the machine is…

A:

Q: Armature windings in ac generators are same as those used in DC machines Select one: O True O False

A: Armature is a conductor which carries the current.

Q: A Short shunt compound generator supplies 86 A at 423 V. If the field resistance is 231 0, the…

A: Given: Short shunt compound generator having Terminal voltage, V=423 V Load current, I=86 A Field…

Q: n 8.2kW seriesd generator has an armature resistance is 0.25 ohms with a generated voltage equal to…

A: The above question is based on the DC generator. The major classification of DC generators is as…

Q: The shaft of a three-phase synchronous generator is rotating at 3000 RPM synchronous speed. This…

A: Principle of Machine: In any electrical machine either it's a DC machine or AC machine, the EMF in…

Q: The shaft of a three-phase synchronous generator is rotating at 1800 RPM synchronous speed. This…

A: Electrical machines can be either generator or motors. They can be either Ac machines or DC…

Q: The field system is the rotating part of the DC Generator Select one: True False

A: In DC machine rectification of power (i.e. from AC to DC or viceversa ) is done by the commutator.…

Q: The armature core of a dc generator is laminated to reduce O hysteresis loss O copper loss O…

A: The armature core of a DC generator is laminated to reduce eddy current loss. Lamination means use…

Q: The open-circuit characteristic of a DC generator is also called as characteristics. O internal O…

A: The open characteristic equation of a dc generator is between no load emf and field current is…

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.