Chapter 11, Problem 10TFQ

A 6-pole, 25-Hz, three-phase, Y-connected, synchronous generator has 36 slots. There are 17 turns per coil, and the flux per pole is 94.8 mWb. Find the line voltage if there are two parallel paths. Sketch the placement of three-phase group coils and show the winding connections. ("

072-kVA, 208-V, Y-connected, three-phase synchronous generator delivers the rated load at 0.866 pf lagging. The armature winding resistance is 20 mQ/phase. The core loss is 800 W. The friction and the windage loss is 350 W. The field winding is connected across a 120-V DC source and the field current is 5.5 A. Calculate the efficiency and voltage regulation of the generator.

11.32 A Y-D ideal three-phase transformer with a turns ratio of1 : 10 supplies a 32 kVA load at a line voltage of 208 V. Determinethe line voltage and line current at the primary side

11.33 A D-Y ideal three-phase transformer supplies a 32-kVAload at a line voltage of 240 V. If the line voltage at the primaryside is 51.96 V, what is the turns ratio?

I would like assistance with the electrical system of a streetcar/train, specifically in performing calculations related to speed, torque, and power for the motor and the train.Streetcar Gear SystemFrom my research, I have found that streetcars typically do not use traditional gear systems. Instead, the motor directly drives the truck (the assembly that holds the wheels and axles) to achieve the desired speed and torque required by the vehicle. The motor's speed and torque are controlled by a control box, which regulates the motor's performance according to the operational requirements. Truck LimitationsThe truck that will be used has certain limitations, such as: Maximun allowable speed: 50 mph Maximum motor output: 75 hp Motor specification: The specification of the motor is the following:Output power    200 HPSpeed    1150/2000 RPMArm’s voltage    600 VArm’s current     317 AFields volts    220 VField Amps    8/3Field Winding     CompoundTorque calculation of the…

7. Find the currents I₁ and 12 in the following circuit, (16 points) - node V=IR 18ΚΩ 12ΚΩ RE 12 V + ww -Supernode 6ΚΩ 4k9k 12 RE22

"Can you explain the method of choosing the direction?" Question- A plane wave in a non-magnetic medium = Нр 1 has an electric field- E = 50 sin(10®t +2)ây V m The standard equation of the electric field is- How can E = Eosin(t + Bây V m ✓ explan how (C. i)- The direction of the propagation is-âk = - âz the direction |

Express this graph/signal as a sum of singularity functions. Please give a proper solution.

2) A 208 V, four-pole, 60 Hz, Y-connected, wound-rotor induction motor has a rated power of 30 HP. The components of its equivalent circuit are R1 = 0.100 R2 = 0.070 XM = 10.0 X1 = 0.210 X2 = 0.210 Pmec = 500 W Psup ~ 0 Pcore = 400 W For a slip of 0.05, find: a) The line current b) The stator copper losses PcE c) The air gap power PEF d) The power converted from mechanical to electrical form Pconv e) The induced torque _ind f) load torque _load g) The total efficiency of the machine h) The speed of the motor in revolutions per minute and in radians per second