220-66-kv-xmer-on-line-nifes-r4-sept-08 - Gujarat Electricity Board

GETCO/E/TS – XMER01power/R4 Sept 08
i) At normal voltage & frequency :
ii) At maximum voltage and normal frequency :
17. Efficiency at 75 0 C Unity P.F. :
i) On 100% load (%) :
ii) On 75% load (%) :
iii) On 50% load (%) :
iv) On 25% load (%) :
18. Efficiency at 75 0 C, 0.8 P.F. (Lag) :
i) On 100% load (%) :
ii) On 75% load (%) :
iii) On 50% load (%) :
iv) On 25% load (%) :
19. Load at which maximum efficiency occurs :
(% of full load)
20. Maximum efficiency (%) :
21. a) Percentage reactance at rated current and :
frequency
b) Percentage impedance at rated current and
frequency at 75 0 C
i) Positive sequence :
ii) Zero sequence :
c) Range of variation (±) offered in terms of cl. 1.16:
d) Tolerance applicable if any :
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