A 500-hp, 460-V, three-phase, 60-Hz, four-pole, 1728-rpm induction motor is driving a large ventilating fan. When it
Question:
A 500-hp, 460-V, three-phase, 60-Hz, four-pole, 1728-rpm induction motor is driving a large ventilating fan. When it is running from a variable-frequency drive (VFD) output of 230 V, 30 Hz with a constant V/f ratio, determine:
(1) The approximate speed and
(2) The exact speed.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 50% (4 reviews)
At 60 Hz a fourpole ac motor has synchronous speed 120 604 1800 rpm The motor has a rated speed of 1...View the full answer
Answered By
PALASH JHANWAR
I am a Chartered Accountant with AIR 45 in CA - IPCC. I am a Merit Holder ( B.Com ). The following is my educational details.
PLEASE ACCESS MY RESUME FROM THE FOLLOWING LINK: https://drive.google.com/file/d/1hYR1uch-ff6MRC_cDB07K6VqY9kQ3SFL/view?usp=sharing
3.80+
3+ Reviews
10+ Question Solved
Related Book For
Introduction To Electrical Power And Power Electronics
ISBN: 9781466556607
1st Edition
Authors: Mukund R. Patel
Question Posted:
Students also viewed these Engineering questions
-
A 300-hp, 480-V, three-phase, 50-Hz, four-pole, 1446-rpm induction motor is driving a large ventilating fan. When it is running from a VFD output of 25 Hz with a constant V/f ratio, determine: (1)...
-
Manage risk-related issues and concerns within the program. Meet with relevant program stakeholders on two separate instances, and in each instance: Go over their program-risk related issues and...
-
TIM produces and sells two products, the MK and the KL. The organisation expects to sell 2 MK for every 2 KLs and have monthly sales revenue of GHe150,000. The MK has a C/S ratio of 20% whereas the...
-
All individuals in Canada have the responsibility to take meaningful actions towards truth and reconciliation. As business professionals, we take it a step further and talk about our responsibility...
-
Indicate whether each of the following is identified with (1) an asset, (2) a liability, or (3) stockholders equity (retained earnings): a. Cash b. Wages expense c. Accounts payable d. Fees earned e....
-
The gear rack has a mass of 6 kg, and the gears each have a mass of 4 kg and a radius of gyration of k = 30 mm at their centers. If the rack is originally moving downward at 2 m/s, when s = 0,...
-
A 1000-kg compact car and a \(2000-\mathrm{kg}\) van, each traveling at \(25 \mathrm{~m} / \mathrm{s}\), collide head-on and remain locked together after the collision, which lasts 0.20 s. (a)...
-
Carlyle Lighting Products produces two different types of lamps: a floor lamp and a desk lamp. Floor lamps sell for $30, and desk lamps sell for $20. The projected income statement for the coming...
-
(a) Explain the following methods of payment that could be used by a multinational corporation (MNC) to settle international transactions: Required: (i) Prepayment. (2 marks) (ii) Letters of credit...
-
A three-phase, 600-V generator feeds a load via single-phase feeder and 50-kVA, single-phase 600/120-V step-down transformer with series impedances of 2 + j6% as shown in the figure below. The...
-
Why is a voltage boost needed in the VFD output voltage when starting and at low motor speeds?
-
The president of the Tacke Corporation believes that statistical research by his staff shows that the firm's long-run total cost curve can be represented as TC = 0Q1PL2PK3 where TC is the firm's...
-
Analyze risk and its measurement. Why must managers be conscious of risk and understand how to properly measure it? What could potentially happen if risk assessment did not occur?
-
The diagram below shows how the elevation above sea-level (in m) varies over a landscape, with and y coordinates measured in kilometres relative to a field station located at (0,0). -2 2 y YA 3 0 1 6...
-
A singer's average audience size is currently 470 people and grows at a consistent 25%/year. When the average audience size hits 1,000 she will seek a major label deal. In how many years will she...
-
On December 1 . 2 0 2 5 , Bramble Corp. purchased a tract of land as a factory site for $ 8 0 5 0 0 0 . The old building on the property was razed, and salvaged materials resulting from demolition...
-
Regarding Harvard management company, why the increase in alternative investments? What are the properties that make Alternatives suitable for portfolio management, particularly for Harvard...
-
Ed Johnson is a real estate manager and investor. Nearly 20 years ago, Ed embarked on a partnership with Jack Jones to improve and operate an office building in New Haven, Connecticut. The building...
-
Eleni Cabinet Company sold 2,200 cabinets during 2011 at $160 per cabinet. Its beginning inventory on January 1 was 130 cabinets at $56. Purchases made during the year were as follows: February . 225...
-
Refer to Figure 16.14a. For H = 6 m, = 17.0 kN/m 3 , f' = 36, c' = 0, = 85, = 10, and ' = 24, assume that the backfill is in the active state and use Coulombs equation to determine the magnitude,...
-
In Problem 16.12, what would be the active thrust Pa when there is a surcharge of 25 kN/m 2 at the ground level? Problem 16.12 Refer to Figure 16.14a. For H = 6 m, = 17.0 kN/m 3 , f' = 36, c' = 0, ...
-
Refer to Figure 16.16a. Given H = 5 m, a = 0.3, and q = 10 kN/m, plot the variation of the horizontal earth pressures on the wall. Figure 16.16 Line load. g/unit length - z= bH (a) q/unit length (b)
-
A wet soil weighed 100 g (Mt = 100 g). After oven-drying for 24 hours, all the moisture in the wet soil was gone and the dried soil weighed 80 g (Ms = 80 g). Then, the water content of the wet soil...
-
b. A volume of air with a temperature of 68F and a vapor pressure of 10 mb mixes with a volume of air of temperature 86F and vapor pressure 30 mb. Does a cloud form? Explain your answer. c. You...
-
Yummy Jams Company produces a line of jams. Yummy's estimated production of jars of jam for the fourth quarter of the year is as follows: October 75,000 November 98,000 December 63,000 Each jar...
Study smarter with the SolutionInn App