-A series generator dellvers a current of 90 A at 240 V. Its armature and series fleld resistances are 0.10 N and 0.05 s respectively. Find the generated voltage.

Q: A three-winding transformer is connected to an AC voltage source as shown in the figure. The number…

A: Given- 3 winding transformer, Number of turns- N1=100,N2=50,N3=50, Currents in secondary side- 2∠30o…

Q: A dc 4 pole lap wound generator is running at 10o00 rpm having 1200 conductors and flux density is…

A: Given  Pole P=4 lap A= P=4 N=1000 rpm Z=1200  φ= 10mwb

Q: Iron losses in a DC machine are independent of variations in

A: The explanation is as follows.

Q: 10. A potential difference of 250 V is applied to a field winding at 15-C and the current is 5 A.…

A: First Calculate the resistance of winding at 15°C: R15=2505R15=50 Ω Now Calculate the resistance of…

Q: was established or he ban, Dam based on the below in Formati. Height of dam)=2 lom Flow rate)= 80…

A: It is given that: Height of dam=h=210 mFlow rate=Q=80 m3/sg=9.81 m/s21 m3 of water=1000…

Q: True or False: In a DC Machine, the field windings can only be found at the Stator

A: In DC motor the field winding is on the stator of the motor and the armature winding is on the rptpr…

Q: The generated emf

A:

Q: In a 2 pole lap winding dc machine , the resistance of one conductor is 2Ω and total number of…

A: Given: A dc machine has, Total number of pole, P = 2. Resistance of one conductor, r = 2 Ω. Total…

Q: A dc 4 pole lap wound generator is running at 1000 rpm having 1200 conductors and flux density is 10…

A: Given that  A dc Lap wound generator having total conductor Z = 1200   speed or number of revolution…

Q: The dc armature resistance of delta-connected alternator measured across its two terminal is 0.8…

A:

Q: Question: 01 A three-legged circular core is shown in figure below. The winding on the left leg of…

A: To determine the total area of the three-legged circular core shown in figure. Now, the Area of leg…

Q: A 200 V/100 V, 50 Hz transformer is to be excited at 40 Hz from 100 V side. For the exciting current…

A: Given, A 200 V/100 V, 50 Hz transformer is to be excited at 40 Hz from 100 V side. The exciting…

Q: A toroidal coil, with a circular cross-sectional area of 0.2m2. The coil inductance is 0.28H. The…

A: Given: A=0.2 m2L=0.28 HN=500 turnsψ=498

Q: A short shunt compound generator supplies a load of 20 kW at 500 V. The armature, series and shunt…

A: Load current = power delivered to load/ terminal voltage voltage.  Power developed = armature…

Q: A dc machine has hysteresis loss of 300 W and an eddy current loss of 200 W when running at 1200…

A: Hysteresis loss Wh=300 W eddy current loss We=200 W The speed is N=1200 rpm Total core loss…

Q: What is the benefit of electrical transformers if there is a load and if there is no load?

A: Transformer: Transformer is a static electrical device which is used to transfer the power from one…

Q: 67. A 2200/200 V, 60-Hz, transformer takes 0.5 A at a power factor of 0.3 on open circuit when…

A:

Q: A potential difference of 250V is applied to a field winding at 15 C and the current 5A. What will…

A:

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: Ip Ep=40 V f = 60 Hz N₂ = 20- N₁ = 120 Find the maximum flux m om = Find the magnitude of the…

A: In this question, we need to determine the magnitude of the induced secondary voltage Es ,  maximum…

Q: Find out the equivalent inductance for the combination when 2 inductances L1 and L2 are connected in…

A: Note as there two different questions and we are asked to solve one question at a time. So repost…

Q: The core of a transformer operating at 50 Hz has an eddy current loss of 100 W/m3 and the core…

A: eddy current loss is given  as  Pe= k f2Bm2 t2

Q: Suppose there is a load that needs 120W of power and is located 50ft from a generator with a total…

A: Given data Load = 120 W V1 = 12 V V1 = 120 V Total resistance = R = 0.2525 Ohms Lenght = 50

Q: A 200 V/100 V, 50 Hz transformer is to be excited at 40 Hz from 100 V side. For the exciting current…

A: Given: A 200/100 V transformer with f1=50 Hzf2=40 Hz Transformer is to be excited at 40 Hz from 100…

Q: A 200V/100V, 50 Hz transformer is to be excited at 40 Hz from 100 V side. For the exciting current…

A: Given, A 200V/100V, 50 Hz transformer is to be excited at 40 Hz from 100 V side. V1=100 Vf1=50…

Q: What are the rotating parts on d.c machine. commutator segments O brushes O inter-pole O pole shoe

A: In dc machine from the above option only commutator segments is moving. so option A is correct.

Q: Example 2-3. A simple power system is shown in Figure 2–22. This system con- tains a 480-V generator…

A:

Q: Please answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. The coil of a generator has an…

A: In this question we will find temperature of coil with given resistance value...

Q: 7. A coil having a resistance of 20 ohms and an inductance of 0.75 henry is connected in series with…

A: In this question,  We need to determine the rate of current change and power delivered by the…

HVDC

HVDC stands for high voltage direct current in the electric power transmission system. The high voltage direct current system uses direct current (DC) for the transmission of electrical power through transmission lines in contrast with the alternating current that is the AC system. The HVDC is used to transmit bulk power point-to-point through long distances transmission lines. Power is rapidly transferred because the efficiency of transmission lines is greatly increased over long distances due to HVDC lines.