A 3-phase, 400 V, 6-pole, 3-phase, 50 Hz, star-connected synchronous motor has a resistance of 0.5 N and synchronous reactance of 4 2 per phase. It takes a current of 15 A at unity power factor when operating with a certain field current. If the load torque is increased until the line current is increased to 60 A, the field current remaining unchanged, calculate the torque developed and the new power factor.

Q: A certain de shunt motor has R.= 0.5 ohm, Rr= 80 ohms. and kr= 0.02 s/rad (kr Ir= ka D). Under…

A: Given,For a DC shunt motor,Ra=0.5 ΩRf=80 ΩKf=0.02 Ωs/radV=10 VIa=20 A

Q: 7-18. A 208-V, 60 Hz six-pole, Y-connected, 25-hp design class B induction motor is tested in the…

A: Asked to find the equivalent circuit of class B induction  motor.Plot the Torque-speed…

Q: P-1).. Which of the following determine the amount of torque produced by a single-phase split-phase…

A: In single phase split phase motor the amount of torque produced is depend on the phase angle…

Q: A 3 phase, 15 kW, 1750 rpm, Y- connected 460 V, 60 Hz, 4 poles, Y- connected induction motor has the…

A: To determine the slip power losses in the given induction motor, we need to follow a few steps and…

Q: A10 Kw, 400 V, 3- Phase induction motor has full load efficiency of 0.87 and power factor 0.85. At…

A: The given details are:

Q: A 415V 50HZ 50hP 34 8 pole induction motor is drawing 65A at 0.80pf lagging. Slip is given as 2…

A: The relationship between Horse power ( HP ) and Watts is 1Hp = 735W                        = 0.735kW

Q: A certain 60Hz, four-pole split-phase induction motor spins at 1760rpm when running with no torque…

A:

Q: On full load, a 300 V series motor takes 90A and runs at 15 rev/s. The armature resistance is 0.1…

A:

Q: im curious about #5 but its based on #4!

A: Solution Outline for Induction Motor Problem (#4)Assumptions:Neglecting mechanical, core, and stray…

Q: A 50-kW 440-V 50-Hz two-pole induction motor has a slip of 6 percent when operating at full-load…

A: It is given that:To find:

Q: A 125-hp, 480-V, 50-Hz, 6-pole, Y-connected induction motor has the per-phase equivalent circuit…

A: The given information about a Y-connected three phase induction motor is: Rated shaft output power…

Q: 2.. A three-phase 60 Hz asynchronous motor runs at 890 rpm at idle and 840 rpm at full load. ww w w…

A: Frequency f= 60Hz Speed 890rpm at idle  Find the number of poles Slip at nominal speed  What happed…

Q: three-phase, 460-V, 60-Hz, four-pole Y-connected induction motor

A: Three Phase Induction Motor A three-phase induction motor is a rotating electrical machine that…

Q: A 10hp six-pole 60-Hz three-phase induction motor runs at 1090 rpm under full-load conditions.…

A:

Q: An 60 Hz, three-phase induction motor has 2 poles and a rotor resistance of 0.19 per phase and runs…

A: Given diagram,No of poles P = 2Frequency f = 60 HzRotor resistance R = 0.19 ohm,Full load speed =…

Motor Load, Torque, and Power Quality Requirement

An electric motor is a gadget that changes electrical energy into mechanical energy over to follow up on a mechanical burden. The weight set on the motor because of this mechanical movement is known as motor load. Appropriately matching the motor burden to the engine is vital to forestall harm to the engine or wasteful and unnecessary expensive activity. Engines perform such undertakings as moving a thing starting with one spot then onto the next, cutting it, changing its shape, etc. The motors might be evaluated as far as a few variables including power yield, voltage, current, and temperature. Harm to an engine might happen when it is worked under over the top engine load contrasted with its appraised limit.