GETCO Exam Paper (30-11-2008) The number of pilot wires required for protecting 3-phase transmission lines using Translay System of protection is 6 3 2 4 6 3 2 4 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) The power handling capabilities of transmission lines are controlled by load frequency control equipments both (a) & (c ) set by design factors determined by system operators controlled by load frequency control equipments both (a) & (c ) set by design factors determined by system operators ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Which loss in a transformer varies significantly with load? Copper loss Eddy current loss Core loss Hysteresis loss Copper loss Eddy current loss Core loss Hysteresis loss ANSWER EXPLANATION DOWNLOAD EXAMIANS APP During O.C test obtained no load losses (core loss)During S.C. test obtained copper loss (load losses)during loaded condition of transformer copper loss more significant than core loss.
GETCO Exam Paper (30-11-2008) The voltage regulation of a transformer at full load and 0.8 power factor lagging is 2.5%. The voltage regulation at full load, 0.8 power factor leading will be zero 2.5% -2.5% 0.01 zero 2.5% -2.5% 0.01 ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) Two transformers are connected in parallel and share loads in the ratio of their kVA ratings when their ohmic impedances are in inverse ratio of their ratings purely reactive equal in direct ratio of their ratings in inverse ratio of their ratings purely reactive equal in direct ratio of their ratings ANSWER DOWNLOAD EXAMIANS APP
GETCO Exam Paper (30-11-2008) In the parallel operation of transformers, which statement is false transformers kVA ratings equal transformers transformation ratios same transformers voltage ratings same None of these transformers kVA ratings equal transformers transformation ratios same transformers voltage ratings same None of these ANSWER DOWNLOAD EXAMIANS APP
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