- #1
Martin V.
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How is synchronous reactance for a cable defined?
How is synchronous reactance for a cable defined?
- Thread starter Martin V.
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- Cable Reactance Synchronous
In summary, the paper linked discusses the determination of various short-circuit impedances, including the synchronous reactance for a cable. This term is commonly used in high power motors or generators and is defined as the ratio between the EMF induced in the stator and the short-circuit current at the same excitation level.
- #2
anorlunda
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The paper linked has the section 2.2 Determining the various short-circuit impedances.
Hopefully, that will answer your questions. If not, you need to be more specific about which rectance you mean.
Hopefully, that will answer your questions. If not, you need to be more specific about which rectance you mean.
- #3
Martin V.
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Thanks :)
- #4
berkeman
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Interesting, I'd never heard that term before, "synchronous reactance", but there it is in the paper!
- #5
davenn
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berkeman said:
likewise, but then, am not into high power motors or generators for which this seems to apply toD
- #6
Babadag
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In my humble opinion, no synchronous reactance is defined for any part of a circuit except synchronous
machine: the ratio between EMF induced in the stator and short-circuit current at the same excitation level.
machine: the ratio between EMF induced in the stator and short-circuit current at the same excitation level.
FAQ: How is synchronous reactance for a cable defined?
1. What is synchronous reactance for a cable?
Synchronous reactance for a cable is a measure of the opposition of the cable to the flow of alternating current (AC). It is a key parameter in determining the performance of a cable in transmitting electrical power.
2. How is synchronous reactance for a cable calculated?
Synchronous reactance for a cable is calculated by dividing the reactance of the cable by the length of the cable. The reactance can be determined by measuring the inductance and capacitance of the cable, or by using mathematical equations based on the cable's dimensions and material properties.
3. What factors affect the synchronous reactance of a cable?
The synchronous reactance of a cable is affected by its length, cross-sectional area, insulation materials, and the frequency of the AC current passing through it. The type of cable, such as overhead or underground, can also impact the synchronous reactance.
4. Why is synchronous reactance important for cable design?
Synchronous reactance is crucial for cable design as it determines the amount of voltage drop and power loss that occurs during transmission. A lower synchronous reactance means less power loss and more efficient transmission of electrical energy.
5. How can synchronous reactance be reduced in a cable?
Synchronous reactance can be reduced in a cable by increasing its cross-sectional area, using materials with lower resistivity, and minimizing the cable length. Proper insulation and shielding can also help reduce synchronous reactance.