What’s the relationship among speed frequency and the number of poles in a three phase induction motor

Answers

Answer 1

Answer:

The number of poles in the windings defines the motor's ideal speed. A motor with a higher number of poles will have a slower rated speed but a higher rated torque.

Explanation:

Answer 2

The relationship among speed, frequency, and the number of poles in a three-phase induction motor is governed by what is known as the synchronous speed equation.

The synchronous speed of an induction motor is the speed at which the rotating magnetic field generated by the stator windings of the motor rotates.

The synchronous speed (Ns) of a three-phase induction motor is given by the following equation:

Ns = (120 × f) / P

where:

Ns is the synchronous speed in revolutions per minute (RPM).

f is the supply frequency in hertz (Hz).

P is the number of poles.

From the equation, it can be observed that the synchronous speed is directly proportional to the frequency and inversely proportional to the number of poles.

This means that if the frequency increases, the synchronous speed also increases, assuming the number of poles remains constant.

Conversely, if the frequency decreases, the synchronous speed decreases.

The actual speed of an induction motor is known as the rotor speed or slip speed, which is always slightly lower than the synchronous speed. The difference between the synchronous speed and the actual speed is referred to as slip and is necessary for the motor to induce a voltage in the rotor and generate torque.

It's important to note that the synchronous speed equation assumes an ideal motor with no load. In practice, the actual speed of the motor depends on various factors, including the load torque, rotor resistance, and motor design.

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Related Questions

Can anyone provide a good java program that shows how to implement a button?

Answers

no thanks, good luck though! <3

Answer:

Hello, this is Kyle Risso and I wrote a program for school not too long a go that can probably answer your question. This code creates two buttons that cycle through different colors.

Explanation:

The most important parts of the code are the ArrayList which implements the arrays for the different colors, but to answer your question the buttons are created using Action Listener as you'll see in the code. Hope this helps.

Which was the first cellular generation to completely replace circuit switched connections with packet switching.

Answers

Answer is : 3G

Explanation:

When we comes to 3G

Packet-switched networks moves data in separate, small blocks -- packets -- based on the destination address in each packet and receives, packets and reassembled in proper sequence to make up message. Circuit-switched networks shows dedicate point-to-point connections during calls.

Circuit-switched networks used for phone calls and packet-switched networks handled data. But because of the reach of phone lines and the efficiency and low cost of data networks, the two technologies have shared chores for years.

Ans 28.(c) Improve Voice Quality so that it is on par with PSTN (Public Switched Telephone Network)

IMT-2000 based on Flexibility,Affordability,Compatibility with existing systems,Modular Design. It improves voice quality with PSTN.

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What did World Com do to try to keep its stock price from falling?

Answers

The company had good enough internal controls to prevent Scott D.

Which of the following is the correct sequence of the DIIRE
value chain?

Answers

A lot of events often takes plain in value chain. The correct sequence of events in the value chain are  competitive strategy; value chain; business process and lastly the information systems.

A value chain is simply known as a business model that shows all the aspects or ranges of activities that is often needed to make a product or service.

Firms often conducts an indepth value-chain analysis through the act of evaluating the detailed procedures involved in each step of its business.

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the image on the right was prooduced by a computer. it shows a complex molecu;e consisting of many atoms. what would be an advantage of using a computer to create a model like this, instead of building it by hand?

Answers

Answer:

The image on the right was produced by a computer.It shows a complex molecule consisting of many atoms.

What would be an advantage of using a computer to create a model like this, instead of building it by hand.

By using computer-generated models, complex chemical structures can be represented with greater speed, accuracy, and flexibility, advancing research in a variety of scientific domains.

When developing a complex molecule model, such as the one shown on the right, there are various benefits to using a computer as opposed to doing it by hand.

The capacity to accurately depict and visualise complex chemical structures that would be too difficult or time-consuming to assemble manually is one important benefit.

Computers make it possible to locate atoms, bonds, and molecular parts precisely, guaranteeing scientific correctness.

Additionally, it is simple to experiment with and modify computer-generated models. Without the physical constraints of handling real components, scientists can quickly change chemical configurations, examine different conformations, and analyse their impacts.

Thus, this makes it easier to comprehend the interactions, behaviour, and characteristics of molecules.

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Victor and Ellen are software engineers working on a popular mobile app. Victor has been in his position for 10 years longer than Ellen, who is a recent graduate. During the development of a new feature, Ellen expressed her concern that VIctor's proposed code would create instability in the app. Victor told Ellen he would address her concern with their supervisor. When Victor met privately with his supervisor, he claimed that he had discovered the problem, and that Ellen had dismissed it. Which principle of the Software Engineering Code of Ethics has Victor violated

Answers

Victor violated principle 7: Colleagues of the Software Engineering Code of Ethics

A code of ethics reaffirms an organization's ethical conducts and morals so that workers, as well as, third parties are aware of the expectations they must meet.

A code of ethics' objective is to instruct persons functioning on behalf of an organization on how they should act.

The attitude of Victor towards her junior colleague (Ellen) is unjust and dishonest since Victor has claimed the credit meant to be for Ellen.

Therefore, we can conclude that Victor has violated principle 7: Colleagues of the Software Engineering Code of Ethics.

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Term software refers to

(a) Computer manuals only

(b) Computer programs only

(c) Machinery

(d) Computer manuals and programs

Answers

Answer:

(b) Computer programs only

Explanation:

[tex]{}[/tex]

Answer:

b

Explanation:

HOPE THAT THIS IS HELPFUL. HAVE A GREAT DAY.

Which type of game requires you to read people’s expressions to anticipate their moves?
chess-type games
dice games
board games
Poker-type games

Answers

Answer:

Chess-type games

Explanation:

Answer:

Explanation:

chess-type games

business cards can be send to other outlook users as email attachments or........

Answers

Answer:

Hey man, here is the answer

Explanation:

The easiest route is Forwarding the existing conversation to another person. The previous thread will be quoted in the new message.

The method in the question appears to be for preserving the top-down reading structure of the existing thread, of which there is no way I'm aware of. Often times, the aforementioned method of simply forwarding an email is enough to impart some context to the person.

Alternatively, one might view the entire thread, and create a PDF of it (possible from the Print dialog box on a Mac, or to save as a PDF in the File/Edit menus in certain windows applications), which they could then send in an email.

Write a class definition line and a one line docstring for the class Dog. Write an __init__ method for the class Dog that gives each dog its own name and breed. Test this on a successful creation of a Dog object. >>> import dog >>> sugar

Answers

Python Code:

class Dog:
""" Dog class definition """

# data attribute species as part of the class Dog
species = "Canis familiaris"

def __init__(self, _name, _breed):
""" Constructor """
# Assigning values
self.name = _name
self.breed = _breed
self.tricks = []

def teach(self, trick):
""" add a passed string parameter to tricks """
# Adding to list
self.tricks.append(trick)
# Printing message
print(self.name + " knows " + trick)


def knows(self, chkStr):
""" check whether a passed string parameter is in the dog’s list of tricks """
# Checking in tricks list
if chkStr in self.tricks:
# Printing message
print("Yes, " + self.name + " knows " + chkStr)
else:
# Printing message
print("No, " + self.name + " doesn't know " + chkStr)

Please help ASAP

14. What is the following code snippet doing?
cities_array = ["Boston":"Winthrop", "Belmont". "Braintree", "Cambridge"]

O increasing the scope of the variable cities_Array

O validating city inputs

O creating an index s city names for an array

OThis code would return a syntax error.

Answers

( If this is in python) then it would return a syntax error because you have used a dot and a colon instead of a comma

How does critical thinking relates to peer assessment?

Answers

Answer:

Peer review is a critical component of the life of the mind and an effective teaching strategy for nurturing students' critical thinking skills. ... peer review of writing is most effective when students have an opportunity to revise their writings prior to submitting a grade. Is it true that peer assessment helps students develop their critical thinking skills?

The students' perceptions of the peer evaluation activity were later elicited in interviews and a short written survey. The findings of the study indicate that peer evaluation activities did help in developing critical thinking skills, thus improving their academic writing performance.

Explanation:

What is one problem caused by spending too much time studying at your computer? A. It increases stress and negatively affects your sleep. B. It causes you to forget other projects that need work. C. It makes it more difficult to organize your time. D. It is not an effective use of your study time.

Answers

Answer:

A - It increases stress and negatively affects your sleep.

Hope that helps. x

Answer:

The answer is A

Explanation:

Assume that students in a course are required to produce a written report on an ICT-related
the topic each semester. If you wanted to create a model to estimate how long it should take a student to
complete such an assignment, what measure of work content would you use? Some reports might be
more difficult to produce than others: what factors might affect the degree of difficulty? Provide a list
of factors and explain each briefly.

Answers

Based on the information given, the measures of work content that can be utilized will be:

The student's knowledge of the subject.   The work's difficulty. The student's research hours.

In order to create a model to estimate how long it should take a student to

complete such an assignment, the important measures include the knowledge of the student on the subject, research hours, etc. This may be evaluated on a scale of 0 to 10.

The factors that may influence the degree of difficulty include:

The student's access to materials for the assignment. The student's familiarity with the work. The amount of time required to fully grasp the subject.

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Is majority intent determined by how many times the same type of result is shown on the search engine result page?

Answers

According to the search engine algorithm, it is True that the majority intent is determined by how many times the same result is shown on the search engine result page.

What is Search Intent?

Search Intent is a term used to describe a user's reason when typing a question or words into a search engine.

Generally, if a user found that no search results match his wants, he would likely not click on any link before performing a similar query search. This would make search engines return with more links that have higher clicks.

Different types of Search IntentInformationalCommercialNavigationTransactional

Hence, in this case, it is concluded that the correct answer is True.

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Matlab

K = 92

how do i do
AK= u * s * v'
with this value?

u = 1
s = 12.0048
v = 1

Answers

Answer:

Explanation:

AK = u*s*v

u = 1

s = 12.0048

v=1

K = 92

92A = 1 * 12.0048 * 1

92A = 12.0048             Divide by 92

A = 12.0048/92

A = .1304

What does this Python expression evaluate to?

100 != 100

True

False

“True”

“False”

Answers

Answer: False

Explanation:

"1. What sorts of problems does this declaration imagine being solved through science and technology?"

Answers

‎‎‎This proclamation focuses on overcoming age, cognitive limitations, involuntary pain, and our physical confinement to the planet. They seek to help bodies live longer, human minds gain more knowledge, stop world hunger, thirst, violence, and other forms of violence, and assist humans in living on worlds other than Earth.

Project planning output is :

A. Top-down planning

B. Bottom up planning

C. Waterfall planning

D. Iterative planning

Answers

Answer:

A

Explanation:

The main output of Project palnning is project plan.

How can you create a messages to look like an IMessage?

Answers

Answer:

An article about the company in a city newspaper are consumers most like to trust.

Explanation:

Write a python program to calculate and print the electric bill for Ethiopian Electricity Corporation. (consumer name meter number(mno),last month reading(Imr)and current month reading(cmr) of 50 customers and calculate the net bill amounts as follows: Number of unit(Nou)=cmr-lmr If Nou200 then bill =Nou*2 tax=bill*0.15 netbill=bill+tax Print all the details in the bill for all customers​

Answers

The electric bill program illustrates the use of loops (i.e. iteration)

Loops are used to execute repetitive operations

The electric bill program in Python where comments are used to explain each line is as follows:

#This iteration shows that the process is repeated for 50 consumers

for i in range(50):

   #This gets input for the consumer name meter number

   mno = input("Consumer name meter number: ")

   #This gets input for last month reading

   lmr = int(input("Last month reading: "))

   #This gets input for current month reading

   cmr = int(input("Current month reading: "))

   #This calculates the number of units

   Nou = cmr - lmr

   #This calculates the bills

   bill = Nou*2

   #This calculates the tax

   tax = bill*0.15

   #This calculates the netbills

   netbill = bill+tax

   #This next four lines print the electric bills

   print("Number of units:",Nou)

   print("Bills:",bill)

   print("Tax:",tax)

   print("Netbill:",netbill)

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How can you implement a framework?

Answers

Answer:

that's the answer

Explanation:

I hope it helps to you

Which of these are examples of an access control system? Check all that apply.
OpenID
44:13
OAuth
TACACS+
RADIUS
Expand
10. Question

Answers

The examples of an access control system include the following:

C. OAuth

D. TACACS+

E. RADIUS

An access control system can be defined as a security technique that is typically designed and developed to determine whether or not an end user has the minimum requirement, permission and credentials to access (view), or use file and folder resources stored on a computer.

In Cybersecurity, an access control system is mainly used to verify the identity of an individual or electronic device on a computer network, especially through authentication and authorization protocols such as:

OAuth: Open Authorization.TACACS+: Terminal Access Controller Access Control Server.RADIUS: Remote Authentication Dial-In User Service.

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What refers to a set of instructions executed in order?
code block
code snippet
sequence
blueprint
30 points

Answers

Answer:

I think the answer is sequence

Answer:

sequence

sequence

When running the following code:
true = 5
false = 6
print (true + false)
-
The interpreter will:

Answers

Answer:

print(11)

Explanation:

true + false = print statement

5 + 6 = 11

To permit communication between two people who do not speak the same language, interpreters accurately and objectively translate spoken or sign languages into other languages.

What is role of print statements in interpreter?

It is the interpreter's responsibility to use these code objects and carry out the directives. You might be astonished to learn that compilation even occurs during the execution of Python code.

As contrast to “compiled” languages like C or Rust, Python is frequently referred to as a “interpreted” language like Ruby or Perl.

A trained expert who facilitates communication between those who speak or sign in various languages is known as an interpretation.

The print() function outputs the message to the normal output device, such as the screen. The message can be a string or any other object, and before it is displayed on the screen, the object will be changed into a string.

Therefore, true + false = print statement 5 + 6 = 11

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I need help with This excel chart. I don't know how to divide all the rows and columns.

In column F, enter formulas that use a function to calculate % Caught with Table (fish caught with Table hook divided by the total number of fish caught).
Format the % Caught with Table values as a percent with one decimal place.

Answers

Answer:

sorry I don't know how to do this.Very very sorry.

why the computer is known as versatile and diligent device ? explain.

Answers

Answer:

Computer is called versatile and diligent device because it is used in almost all the fields for various purposes and it can perform the task repeatedly without loosing its speed and accuracy for long time.

What is the difference between * and **operator? in python ​

Answers

Answer: "**" is used for power off while "*" is used for multiplication

Explanation: you just have to memorize it

In python language the "**" operator is used for 'power of" and "*" is used for multiplication.

To alter the value of operands in Python, utilise the operators constructs. These are the figurative representations of logical, mathematical, and other operations.

Consider the equation 4 + 5 = 9. The operator in this instance is +, and the operands are 4 and 5. We'll examine numerous Python operators in this session.

The following operator categories are supported by the Python language.

Comparison (Relational) Operators for ArithmeticOperators of assignmentsIntelligent OperatorsOperators in bitsOwners of membershipsIndividual OperatorsLet's quickly review each of these operators in turn.

In python language the "**" operator is used for 'power of" and "*" is used for multiplication.

Therefore, in python language the "**" operator is used for 'power of" and "*" is used for multiplication.

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I ate five M&Ms: red, green, green, red and yellow. Only these three colors are possible. I assume that p(yellow)=3p(green)
What is the estimated probability of green color?

Answers

Answer:

Below is code written in a free CAS (WxMaxima):

The above code creates the probability of 19 or more brown in the sample of 48 for population sizes from 5*19 to 10000 in steps of 5.

Here’s a plot of that data:

The horizontal blue line is the probability for an infinite population size (or, choosing each of the 48 M&Ms with replacement, which I infer is not what you meant). It is calculated using the binomial cdf:

The red curve approaches the blue line asymptotically as the population gets larger.

At population 10000, the red curve is

.

Simple question: what is bandwidth?

Answers

The maximum amount of data transmitted over an internet connection in a given amount of time

Answer:

It is the amount of data that can be transmitted in a set period of time, that is the rate of data supported by the network connection.

In simple definition, it can be said to be the data transfer capacity of a computer network in bits per second (bps).

Explanation:

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