Question: A synchronous motor is operating on no-load at unity power factor. If the field current is increased, power factor will become (A) Leading &

A synchronous motor is operating on no-load at unity power factor. If

A synchronous motor is operating on no-load at unity power factor. If the field current is increased, power factor will become (A) Leading & current will decrease (B) Lagging & current will increase. (C) Lagging & current will decrease. (D) Leading & current will increase.

Step by Step Solution

★★★★★

3.40 Rating (147 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

The detailed ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Electrical Engineering Questions!

three-phase average power of a synchronous motor is 23kW. The three-phase line supplying the motor has a line voltage rating of 208 V (rms). The line current is 75A per phase. Determine the power...

A synchronous motor improves the power factor of a load of 200 kW from 0.8 lagging to 0.9 lagging. The motor carries a load of 80 kW. Find the power factor at which the motor operates.

A DC motor delivers mechanical power to a rotating stainless steel shaft (k = 15.1 W/m·K) with a length of 25 cm and a diameter of 25 mm. In a surrounding with ambient air temperature of...

What is the NPV of a project that costs $597,000 and returns $265,000 for each of the next 3 years and then $88,800 for each of the following 5 years, if the opportunity cost of capital is 9.00%?

A 50-Hz, two-pole, 750 kVA, 2300 V, three-phase synchronous machine has a synchronous reactance of 7.75 and achieves rated open-circuit terminal voltage at a field current of 120 A. a. Calculate the...

QUESTIONS: What are the Space Matrix, Grand Strategy Matrix, and The Internal-External (IE) Matrix for Jetblue Company? JetBlue Airways Corporation, 2015 www.jetblue.com, JBLU Headquartered in Long...

Homework # 4 ENEE 3 5 0 : Name Due Date: 1 2 / 1 6 / 2 0 2 4 A 3 - phase, 2 0 kVA, 2 0 8 V , 4 - pole star - connected synchronous generator has a synchronous reactance of x s = 1 . 5 per phase. The...

please answer all the questions:- A wound DC motor is connected in both a shunt and a series configuration. Assume generic resistance and inductance parameters Ra, Rf, La, Lf, let the field...

Motor Control Problems With reference to the power electronics block diagrams and rectifier formulas in Lecture 2 4 , complete the following problems. MC . 1 - An Inverter - fed synchronous motor...

Q. 1. Explain the concept of Operations Management and describe in brief contributions made by Henry Ford and Taguchi. Q. 2. Describe the characterstics of job production and mass production. Q. 3....

Getting a degree from a college or university can be a long and difficult task. Certain courses must be completed before other courses may be taken. Develop a network diagram, in which every activity...

If f is continuous on [0, ] and lim x f(x) = 0, show that f(x) dx = f(0)

IANCOSA roduction to Functional Areas of Management Jan 2 5 Y 1 S 2 The span of control principle states that the number of people reporting directly to any manager should be limited because one...

1. You are a LNC working for a criminal defense attorney. The case that you are working on involves defending a local physician who is alleged to have been diluting and adulterating medications...

Calculate the bond prices and Macaulay durations of the 99-year ("century") Penn bond, the 30-year T-bond, and the 30-year Zero under three possible interest rate scenarios in August 2020?

Halifax Msnufacturing allows its customers to return merchandise for any reasan up to 9 0 dsys sfter delvery and receive s credt to their accounts. All of Halifax's soles are for crecit ( no cash is...

John Parsons (123-45-6781) and George Smith (123-45-6782) are 70% and 30% owners, respectively, of Premium, Inc. (11-1111120), a candy company located at 1005 16th Street, Cut and Shoot, TX 77303....

A vertical force P on the foot pedal of the bell crank is required to produce a tension T of 400 N in the vertical control rod. Determine the corre- sponding bearing reactions at A and B. Image...

Le verbe avoir Compltez les blancs par les formes appropries du verbe avoir au prsent. Vous chaud. Anne de la chance,. Mes amis et moi, nous besoin d'tudier. Mes parents envie de manger au restaurant

The synchronous condenser of Problem 5.17 is connected to a 11.5 kV system through a feeder whose series reactance is 0.12 per unit on the machine base. Using MATLAB, plot the voltage (kV) at the...

A four-pole, 60-Hz synchronous generator has a rotor length of 5.2 m, diameter of 1.24 m, and air-gap length of 5.9 cm. The rotor winding consists of a series connection of 63 turns per pole with a...

Neglecting any effects of rotational and core losses, use MATLAB to plot the internal torque versus speed curve for the induction motor of Problem 6.10 for rated-voltage, rated-frequency operation....

Describe a strategy to randomly split 24 tomato plants into the three groups for the completely randomized single factor experiment of Exercise 4.

Exercises 24 and 36 describe an experiment investigating the effectiveness of exercise in combating insomnia. Researchers randomly assigned half of the 40 volunteers to an exercise program. a) Why...

Exercise 33 describes an experiment that studies hamstring injuries. Describe a strategy to randomly assign injured athletes to the two exercise programs. What should be done if one of the athletes...