High power factor Is it Good/Bad? Why?

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Discussion Overview

The discussion revolves around the concept of power factor, specifically whether a high power factor is beneficial or detrimental. Participants explore its implications in electrical systems, including theoretical and practical aspects, while addressing a student's assignment question.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Homework-related

Main Points Raised

  • Some participants express uncertainty about the definition and implications of power factor, seeking clarification.
  • One participant defines power factor as the ratio of apparent power to real power, noting its range between 0 and 1.
  • Another participant mentions that a high power factor could be considered bad in the context of evaluating insulation in devices like transformers.
  • It is suggested that low-power-factor loads can increase losses in power distribution systems and lead to higher energy costs.
  • A participant emphasizes that power factor indicates how much current is used to perform useful work.
  • There is a call for participants to share their understanding of power factor before receiving assistance with the assignment.
  • One participant points out that power factor has been discussed extensively on the forum, suggesting prior resources for further reading.

Areas of Agreement / Disagreement

Participants do not reach a consensus on whether a high power factor is good or bad, with multiple competing views presented regarding its implications in different contexts.

Contextual Notes

Some definitions and implications of power factor remain unclear or are dependent on specific contexts, such as the type of load or application being discussed.

dawog
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High power factor! Is it Good/Bad? Why?

Is high power factor good or bad? Why?

Not really sure

An assignment i have got due!
 
Engineering news on Phys.org
Do you know what is power factor?
 
i do but i don't at the same time. Explain and could you please help me with that question i asked before

regards
 
We would be happy to help you. Just say what your understanding of power factor is.

btw, we don't do assignments for students here i.e. hand out answers. You must show us what you've done or tell us what your understanding of the problem is. These are the conditions you agreed to when signing up.
 
power factor is the ratio of apparent power which is multiplied to get the true power being consumed in the c.c.t
 
Power factor is the ratio of apparent power and what?

What can you say about the power factor in a purely resistive AC circuit? What happens when we add reactive load(s) to the circuit? How is the effective power affected by this change?
 
Do a search on this site. Power factor has been discussed many times.
 
Is a high power factor good or bad?
If you are talking about evaluating the insulation of a device (a transformer for example) a high power factor is bad.

Just thought I'd muddy the water a little.
 
The power factor of an AC electric power system is defined as the ratio of the real power to the apparent power, and is a number between 0 and 1. Real power is the capacity of the circuit for performing work in a particular time. Apparent power is the product of the current and voltage of the circuit. Due to energy stored in the load and returned to the source, or due to a non-linear load that distorts the wave shape of the current drawn from the source, the apparent power can be greater than the real power. Low-power-factor loads increase losses in a power distribution system and result in increased energy costs.
I think now you are able to understand, actually what the power factor is
 
  • #10
goldy said:
The power factor of an AC electric power system is defined as the ratio of the real power to the apparent power, and is a number between 0 and 1. Real power is the capacity of the circuit for performing work in a particular time. Apparent power is the product of the current and voltage of the circuit. Due to energy stored in the load and returned to the source, or due to a non-linear load that distorts the wave shape of the current drawn from the source, the apparent power can be greater than the real power. Low-power-factor loads increase losses in a power distribution system and result in increased energy costs.
is

Next time to wish to copy something verbatim; use quotes and point to the original source:
http://en.wikipedia.org/w/index.php?title=Power_factor&oldid=143904499
 
  • #11
Power factor indicates how much of the current is being used to produce useful work!
 

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