Question: A three-phase 6 pole, induction motor is rotating with 3% slip. Supply frequency is 50 Hz. Calculate the synchronous speed (Ns) and the frequency of

A three-phase 6 pole, induction motor is rotating with 3% slip. Supply frequency is 50 Hz. Calculate the synchronous speed (Ns) and the frequency of rotor current (fr) in Hz.
a) Ns = 1500 rpm & fr = 50 Hz
b) Ns = 1500 rpm & fr = 3.0 Hz
c) Ns = 1000 rpm & fr = 50 Hz
d) Ns = 1000 rpm & fr = 1.5 Hz

Step by Step Solution

★★★★★

3.37 Rating (163 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

The detailed answ... 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!

In the previous problem, suppose the firm was operating at only 85 percent capacity in 2020. What is EFN now? Data from Previous Problem The most recent financial statements for Retro Machine, Inc.,...

A 3-phase,4 pole Induction motor Is connected to 400 V,50 Hz supply Determine a) Synchronous Speed b) Actual speed of motor when running at 4% slip c) Frequency of emf induced in the motor.

A centrifuge rotor rotating at 10,300 rpm is shut off and is eventually brought uniformly to rest by a frictional torque of 1.20 m N. If the mass of the rotor is 4.80 kg and it can be approximated as...

A motor delivers 275 hp at 1000 rpm to the end of a shaft (see figure). The gears at B and C take out 125 and 150 hp, respectively. Determine the required diameter d of the shaft if the allowable...

A 200 hp, three phase, four pole, 60 Hz, 440 V(rms) squirrel-cage induction motor operates at 1746 rpm full load with an efficiency of 85%, power factor of 91%, and 3% slip. Find the line current.

A high power 3 phase cage rotor induction motor is running with single phase supply after one of the phase connection is broken. How can you interpret that situation in the mathematical model of...

Let A, B be sets. Define: (a) the Cartesian product (A B) (b) the set of relations R between A and B (c) the identity relation A on the set A [3 marks] Suppose S, T are relations between A and B, and...

lnfectious diseases. such as influenza' can spread according to the autonomous differential equation % : BI (N I) .u,I. I denotes the number of infected people' Ndenotes the total size of the...

i need detailed expanations ony 1. (36 points) Two firms, A and B, are competing in the production of a homogenous good. The good's marginal cost for both firms is equal, MC = $25. Assuming linear...

Please i need only the answers , some exercises are incomplete i cant find the other answers. thanks Cash Receipts The sales budget for Perrier Inc. is forecasted as follows: Month Sales Revenue May...

An officer for a large construction company is feeling nervous. The anxiety is caused by a new excavator just released onto the market. The new excavator makes the one purchased by the company a year...

Identify whether the items below are characteristics of information that are relevant (REL) or a faithful representation (FR): _______ Information that is neutral _______ Information has decision-...

Use Part I of the Fundamental Theorem to compute the integral exactly. - 1 1 ( x 7 2 x ) d x =

Below is the Probate case of Phillepe and Jenna. Review the fact pattern and answer the questions that follow. ============ Phillipe is a co-founder of a successful bio-med start-up company and Jenna...

On March 31, 20Y4, the balances of the accounts appearing in the ledger of Danns Fumishings Company, a furniture wholesaler, are as follows: Accumulated Depreciation-Building $774,550 Merchandise...

Of the 196 students in the entering class at Lakeside Community College, 100 of them plan to participate in sports, 85 in student government, and 55 in the theater arts. 27 indicated they would...

Question 1 The ABC Corporation has reported earnings available to common stock of $4,200,000 last year. The following information applies to the company. Dividend (preferred stock) # of outstanding...

1) Draw indifference a. pencils with white erasers and pencils with pink erasers b. left shoes and right shoes c. potatoes and rice d. income and polluted water cur curves that reflect the following...

A scatterplot is used to: Question 7 options: Compare part-to-whole ratios Show trends over time Reveal relationships between two continuous variables Display percentage values

(a) The speed at which the rotating magnetic field produced by stator currents rotates is (1) Synchronous speed (2) rotor speed (3) Greater than synchronous speed (b) A 3-phase, 400 V, 50 Hz, 4 pole...

Question 1: The flux per pole in a synchronous motor with the field circuit ON and the startor disconnected from the supply is found to be 25 mWb. When startor is connected to the rated supply with...

1. A 3 phase induction motor is running at 2% slip. If rotor input is 1000 W, then gross mechanical power developed by the rotor is _____ . 2. A 8 pole 3 phase induction motor operates from a supply...

1. We know that the most common form of color blindness results from an Xlinked recessive gene. A couple with normal color vision has a daughter with normal vision and a son who is color-blind. What...

Q. 1. "Management control is the process by which managers influence other members of the organisation to implement organisation strategies". Comment and explain the statement. Q. 2. What is a...

1. Explain the Need, importance, process and Types of Control. 2. What is Budgeting? What are its purpose and types? How can it be made effective in an organization? 3. Explain in detail the various...