Two single-phase transformers  and  each rated at 500 kVA are operated in parallel. Percentage impedances of   and  are (1 + j6) and (0.8 + j4.8), respectively. To share a load of 1000 kVA at 0.8 lagging power factor, the contribution of  (in kVA) is ______________

Two transformers are to be operated in parallel such that they share load in proportion to their kVA ratings.  The rating of the first transformer is 500 kVA and its pu leakage impedance is 0.05 pu.  If the rating of second transformer is 250 kVA, then its pu leakage impedance is

Two single-phase transformers A and B have the following parameters:

Transformer A: 10V/200V, percentage resistance and percentage reactance 3% and 4% respectively.

Transformer B: 5 kVA, 400V/200V, percentage resistance and percentage reactance are 4% and 3% respectively.

These two transformers are connected in parallel and they share a common load of 12 kW at a power factor of 0.8 lagging. Determine the active and reactive power delivered by the transformer A.

Two transformers of identical voltages but of different capacities are operating in parallel. For satisfactory load sharing

Two 550kVA alternators operate in parallel to supply the following loads

(i) 250 kW at 0.95 power factor lag

(ii) 100kW at 0.8 power factor lead

One machine is supplying 200kW at 0.9 pf lag. The power factor of other machine must be

Two transformers of different kVA ratings working in parallel share the load in proportion to their ratings when their