A motor is operating at a rated25 hp. Voltage 208-230/460 AMPS 67-61/30.5 RPM 1185 Full Load Safety Factor 1/15 Efficiency % at 100% = 93.00 at 75% = 93.0 at 50%=93.0 1. What is the real power in kW (P =VI COS theta) ? 2. Apparent power in kVA ( S=VI) ? 3. Reactive Power kVA ( Q = VI sin theta) ? %3D 4. Motor power factor?

Q: Question-4 For each of the following main parts that make up the alternator (1 to 4), choose the…

A: As per guidelines I am solving first question only.

Q: a. the round part of the rotating field. b. wound with wire. c. usually round on large machines. d.…

A:

Q: Which of the following is equal to the unit of magnetic flux Weber (Wb)

A: Choose the correct option Which of the following is equal to the unit of magnetic flux Weber (Wb)

Q: A wind turbine gives maximum output put of 1MW at a wind speed of 15m/s. Refer to the above wind…

A: To find the swept area by the wind turbine (A)

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

A: In dc machine field winding is statinary and armature winding is rotating.

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A: Since it is a step down transformer therefore V2<V1 and number of turns in primary will be…

Q: Different a Motor, Generator, AC Generator, and DC Generator

A: Motor V/s Generator Motor Generator 1. Converts electrical energy to mechanical energy…

Q: How the armature reaction works in a de generator.

A: When Armature current flow in the Armature conductor, it generates a additional Flux inside the…

Q: In fleming's rule out of three fingers, if two fingers leaving the thumb in left hand(motor) and…

A: FLEMING'S LEFT HAND RULE: Fleming's left hand rule states that"if we stretch our thumb,the…

Q: Please write a short discussion for each number and explain.   1. Losses in a DC generator 2.…

A: Discussion about  1.Losses in a DC generator 2. Power stages in a DC generator 3. Efficiency of a DC…

Q: The spring in some instruments causes hysteresis effect. True False

A: Choose the correct option The given Statment The spring in some instruments cause hysteresis effect.…

Q: i need  theory about Characteristic of Separately excited Generator

A: To write the characteristics of separately excited Generator

Q: f electrodynamo type water meter B. Write

A: Electrodynamometer Wattmeter : These instruments are similar in design and construction to the…

Q: The counter e.m.f. of a d.c. motor often exceeds the supply voltage aids the applied voltage helps…

A: a..>> The back emf of a dc motor makes the motor to draw as much armature current as it is…

Q: iii. Induced emf in the coil if the current fall from 3A to 1A a. 420V b. 620V c. 0.62V d. 0.42V

A: Put the given inductor value L and change in time

Q: Please solve this question in control system quickly

A: From the given figure we can see that ; Damping frequency - wd =8 rad/sec

Q: Vertical axis wind turbine has blades like O a. Airplane propeller O b. Cylindrical bamboo structure…

A: Find explanation below

Q: explain about mechanical test in routin test of C B

A: Testing of a circuit breaker are of two types:  Type Tests  Routine Test. The circuit breakers carry…

Q: A DC machine can run either as a ______ or as a generator.

A: In this answer we will understand what is a machine and the types of a machine and then we will try…

Q: 14 If the induction electrical machine operates at slip s = - 0,1 the mode of operation is * O…

A: The answer is Generator

Q: Draw and label both the power and control circuit of a 3 phase DOL induction machine starter

A:

Q: In DC generator for heavy duty machine bearing is used.

A: We need to tell about the haeavy duty machine which bearing is used .

Q: What is generator in electrical engineering?

A: In this questionWe need to explain about he electric generator.

Q: 7. When it is necessary to provide automatic control of the voltage output at constant speed, the…

A: Conceptual Background:- DC Generators:- An electrical device called a DC generator's principal job…

Q: The brushes of DC machines are usually made of and are in the shape of rectangular block. Select…

A: Brushes of dc machine are made of corbon graphite .and these are in rectangular shape.

Q: In an On-Off AC Voltage controller, the ON time is 50 cycles and duty cycle is 0.25. The OFF time…

A: Let M be the number of on cycles and N be number of off cycles. Duty cycle=no.on cyclesno.on…

Q: A machine's armature winding is in progressive wave type if the number of conductors is 670 with 4…

A:

Q: O a. The amount of energy transferred is dependent on the rotor size and the wind speed. O b. The…

A:

Q: 1) A buffing wheel is connected to the shaft of a motor. When the motor is switched on, it takes the…

A: when motor is switched on ωi=0ωt=3602cycle/min=360260 cycle/sect1=6.1 seconds

Q: Identify the count cycle and timing diagram of counters

A: A Counter is a device in digital logic and computing that saves (and occasionally shows) the number…

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A: As per Bartleby guidelines we are allowed to solve only one question, since these parts are…

Q: 24. The number of parallel paths in wave winding of machine is a) 4 b) 6 c) 2 d) 8 25. The brushes…

A: The explanation is as follows.

Q: Different between motor and generator

A: Given :   In the they are asking the difference between motor and generator   Depending on the…

Q: 5. What is the name of 0.Cgenerator field? A. Short shunt compound generator B. Long shunt compound…

A: The field winding of the Dc generator is shown below:  There are two distinct windings hence it is…

Q: Explain the installation procedures of a flexible coupling

A: Flexible coupling is used to transfer torque from one shaft to another that is not fully aligned.…

Q: suitability of oscilloscopes for voltage measurement and DC display.

A: We need to write about the suitability of oscilloscopes in measuring DC voltage in display.

Gear Motor

A gear motor is a combination of a gearbox and an electric motor. This combination of two systems is used for efficient usage of the motor. It makes a cost-effective solution for high torque, low-speed applications. These motors are used in our household as, garage door openers, alarm clocks. In commercial areas, hospital beds, cranes.