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Effect of voltage on fixed capacitor

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3winding

3winding

Electrical
Joined
Jul 11, 2003
Messages
37
Location
CA
What effect does changing the voltage have on a fixed capacitor? Lets say a substation has a 10MVAR capacitor rated at 34.5kV. If the system voltage goes up or down, how does the MVAR output change?
 
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As voltage squared. But losses will also increase at higher voltage. Do not exceed rated voltage.
 
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Okay, so if the voltage rises to 37kV what is the output of the caps?
 
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The 10 Mvar (yes, small letters in var, it is a unit of its own) rises to 11.5 Mvar.
 
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