CONSTRUCTION OF GENERATOR CAPABILITY A CURVES
construction of generator ca atcs ca atcs capability curves
construction of generator ca atcs ca atcs capability curves
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DETERMINATION <strong>OF</strong> <strong>GENERATOR</strong>S<br />
POTIER REACTANCE<br />
• The obtained values (dependences) of Potier reactance<br />
x p =f(Q<br />
G ,U G )≈ f(Q G,cosφ=0 ) should be used for design of generator<br />
capability curve.<br />
• The specified rule was verified on the example of generator<br />
GTHW360 (360 MW) for regimes around the nominal (P G ≈P Gn and<br />
Q G ≈Q Gn ), )iebycomparisonof:<br />
i.e. of:<br />
• measured values (I f ,meas), and<br />
• calculated values (I f,calc ), on the basis of Potier reactances (x P ) for Q G,cosφ=0<br />
And, it is obtained<br />
I f,calc =I f,meas ±0.4%<br />
G,cosφ=0 ≈Q Gn .
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