| Revision as of 21:56, 15 December 2024 editFormelsamling (talk | contribs)25 edits ←Created page with ''''Zero power factor curve''' (ZPFC) is a characteristic curve for Synchronous machines. Obtained by measuring the terminal voltage when the current has a zero power factor current. This is obtained by a load with pure inductors that could be regulated to compensate the reactive power of the generator EMF <ref name="EEEguide">{{cite web | url=https://www.eeeguide.com/armature-reaction-in-synchronous-motor/ | title=Armature Reaction in Synchronous Motor...' | Revision as of 22:58, 15 December 2024 edit undoВикидим (talk | contribs)Autopatrolled, Extended confirmed users, New page reviewers20,529 edits expanded based on User:Викидим/Zero power factor curveNext edit → | ||
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| The '''zero power factor curve''' (also zero power factor characteristic, ZPF, ZPFC) of a ] is a plot of the output voltage as a function of the ] or field using a zero ] (purely ]) load that corresponds to rated voltage at rated current (1 ]). The curve is typically plotted alongside the ]. | |||
| ⚫ | Obtained by measuring the terminal voltage when the current has a zero power factor current using a pure inductive load that could be regulated to compensate the reactive power of the generator EMF.<ref name="EEEguide">{{cite web | url=https://www.eeeguide.com/armature-reaction-in-synchronous-motor/ | title=Armature Reaction in Synchronous Motor | publisher=EEEguide – Online Electrical and Electronics Learning Site | access-date=2024-12-15 }}</ref> | ||
| ⚫ | The ZPFC could be used together with the ] in Potier Triangle |
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| The curve is obtained by rotating the generator at the rated ] with the output terminals connected to the unity load, varying the excitation field and recording the output voltage.{{discuss}} | |||
| ⚫ | The ZPFC could be used together with the ] in ] method. | ||
| The zero power characteristic is similar to the open-circuit characteristic but shifted down by <math>\alpha</math>.{{clarify}} | |||
| == References == | == References == | ||
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| {{Characteristics of synchronous machines}} | {{Characteristics of synchronous machines}} | ||
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| {{electric-stub}} | {{electric-stub}} | ||
Revision as of 22:58, 15 December 2024
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The zero power factor curve (also zero power factor characteristic, ZPF, ZPFC) of a synchronous generator is a plot of the output voltage as a function of the excitation current or field using a zero power factor (purely inductive) load that corresponds to rated voltage at rated current (1 p.u.). The curve is typically plotted alongside the open-circuit characteristic.
Obtained by measuring the terminal voltage when the current has a zero power factor current using a pure inductive load that could be regulated to compensate the reactive power of the generator EMF.
The curve is obtained by rotating the generator at the rated RPM with the output terminals connected to the unity load, varying the excitation field and recording the output voltage.
The ZPFC could be used together with the open-circuit saturation curve in Potier Triangle method.
The zero power characteristic is similar to the open-circuit characteristic but shifted down by .
.
References
- "Armature Reaction in Synchronous Motor". EEEguide – Online Electrical and Electronics Learning Site. Retrieved 2024-12-15.
| Characteristics of synchronous machines | |
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