Why is a capacitor a generator of lagging reactive power?

Click For Summary

Discussion Overview

The discussion revolves around the role of capacitors in generating reactive power, particularly in the context of alternating current (AC) systems. Participants explore the implications of capacitors having a leading power factor and how this relates to their function in inductive load scenarios.

Discussion Character

  • Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant states that an ideal capacitor has a power factor of zero degrees leading, indicating that current leads voltage, and questions what it means for a capacitor to be a generator of lagging reactive power.
  • Another participant suggests that capacitors are used for reactive power generation specifically at inductive load sites.
  • A different viewpoint is presented, asserting that while capacitors are generators of lagging reactive power, they actually add leading reactive power.
  • One participant references external articles to provide insights into the topic and expresses the complexity of answering "why" questions in this context.
  • A participant acknowledges the references and indicates they will review the articles before continuing the discussion.

Areas of Agreement / Disagreement

The discussion contains competing views regarding the nature of capacitors in relation to reactive power, with some participants asserting that capacitors generate lagging reactive power while others argue they add leading reactive power. No consensus is reached.

Contextual Notes

Participants express uncertainty about the definitions and implications of reactive power generation by capacitors, and there are unresolved questions about the relationship between leading and lagging power factors.

Engineer1
Gold Member
Messages
16
Reaction score
1
An ideal capacitor has power factor of zero degree leading as current leads the voltage in capacitor.But it also means that capacitor is generator of lagging reactive power.What does that mean.How does it do so.Capacitor is used for reactive power generation at inductive load sites.
 
  • Like
Likes   Reactions: anorlunda
Engineering news on Phys.org
Engineer1 said:
But it also means that capacitor is generator of lagging reactive power.
A capacitor adds leading reactive power.
 
  • Like
Likes   Reactions: cabraham and Engineer1

Similar threads

  • · Replies 2 ·
Replies
2
Views
1K
  • · Replies 8 ·
Replies
8
Views
3K
Replies
9
Views
2K
Replies
11
Views
3K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 37 ·
2
Replies
37
Views
7K
  • · Replies 38 ·
2
Replies
38
Views
4K
  • · Replies 38 ·
2
Replies
38
Views
5K
Replies
15
Views
2K
  • · Replies 5 ·
Replies
5
Views
3K