A DC motor is fed with the armature voltage 430 V. At the current load, the speed is 180 rpm and the armature current is 29 A. The armature resistance of the motor is 0.9 Ω and the brush voltage drop is a total of 2.5 V. The shaft torque is 72 Nm and the magnetizing current is 0.87 A at the magnetizing voltage 494.5 V. a) What electrical power does the motor receive? b) what is the mechanical effect that the engine develops? c)determine the efficiency of the motor at this load d) how big will the speed be at half the load torque? (Armature voltage and magnetizing current are unchanged.) Tip: First calculate the motor's k2Fi value - half Half the torque gives half the armature current. e) The speed at idle is approximately (whole number with two decimal places)

Q: EA5 kW, 200 V dc shunt motor has armature resistance of 1 ohm and shunt field resistance of 100 ohm.…

A: According to the question we have to find the value of the total copper loss.

Q: An ideal 120V 2HP motor draws an apparent power of 1800w from the source. Determine it's power…

A: In this question the apparent power and active power are given ,so as we know power factor is the…

Q: (e) The coil of a simple electric motor has a resistance of 200 N. At start-up the motor uses 242 W…

A: Given Data:A simple electric motor with,The coil resistance The power at start-up The power at full…

Q: While discussing electric motors: Technician A says that when there is high CEMF, there will be high…

A: Given, While discussing electric motors: Technician A says that when there is high CEMF, there will…

Q: Can you draw a diagram of a separately excited motor. 1. Where the two coils are in series. 2.…

A: Separately Excited DC Motor: The main supply is delivered separately to the armature and field…

Q: The electric motor shown turns a shaft leading to a pump at a constant 1725 RPM. The motor is…

A:

Q: 9) If the series motor loss its load suddenly, then A. its torque goes too high B. its speed…

A:

Q: Which of the following is used for very heavy loads? 1. Permanent magnet motor 2. AC servomotor 3.…

A: We need to discuss about the these motor based on heavy load.

Q: tor has lap-wound arn rotating at 100 slots 2 turms per col. 100rpm. Flux per pole is 100mWb.…

A:

Q: A100 Volt dc series motors run at 400 rpm when taking a current of 55 Amp. Armature resistance is…

A:

Q: A short composite  motor  draw or pulls stream a current of 50 A at a voltage of 220 V it rotates at…

A: A short composite motor is nothing but a short shunt compound motor.  The given parameters for a…

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.