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a wind turbine with a gearbox ratio of 200 produces electric energy when the generator speed is at least 910 rpm the
a reservoir-type small hydroelectric system has an effective head of 10m and a penstock of a flow rate of 1m3s assume
a person wishes to build a ws diversion-type small hydroelectric system on his property to measure the speed of the
parts a b and c of this problem should be done by inspection-that is mentally the intent is to obtain a solution
a tidal mill with blade length of 2m compute the blade power when the tidal current is 5 knots assume the power
a barrage tidal energy system is constructed between a lagoon and open ocean the base area of the lagoon is 1km2 the
referring to the network of given figure is va 88 v the correct reading for the given configurationif not which
a the voltage va for the network of fig 6102 is 1 v if it suddenly jumped to 20 v what could have happened to the
write a program that will tabulate the voltage v2 of fig measured by a vom with an internal resistance of 200 komega as
a flywheel system stores 1 kj the diameter of the rotor is 40 cm and its height is 20 cm the density of the rotor
which elements of the networks in given figure are in series or parallelin other words which elements of the given
a phs system is used to store electric energy from midnight to 500 am the reservoir is cylindrical with 200m radius
a single-phase transformer has a voltage regulation of 5 the input voltage of the transformer is 120v and the turns
a single-phase transformer is rated at 10kva 220110va compute the rated current of each windingb if a 2omega load
the synchronous speed of a 60hz three-phase induction motor is 1200rpm what is the synchronous speed of the motor if it
a single-phase 10 kva 2300230v two-winding transformer is connected as an autotransformer to step up the voltage from
three single-phase transformers are connected in wyedelta configuration each singlephase transformer has an identical
a portion of a residential service to a home is depicted in given figurea determine the current through each parallel
for the network of given figurea find the current i1b calculate the power dissipated by the 4-omega resistorc find the
a transformer is energized through a cable whose inductive reactance is 3omega the phase voltage at the source side of
a dc motor is driving a constant-torque load if the field voltage of the motor decreases by 20 calculate the percentage
for the network of given figurea find the current ib determine the voltage vc calculate the source current
for the compensated load in figure 1318 assume the load impedance is composed of 10omega resistance in series with 01h
using kirchhoffs current law determine the unknown currents for the networks of given
for the system in the previous problem assume that the generation capacity is 19gw compute the imported energy to