Physics, 17.07.2019 23:40 milkshakegrande101
An area of an interconnected 50 hz power system has two turbine- generator units rated at 500 and 1000 mva. the regulation constant of the units is 0.05 per unit based on their ratings. each uni is initially operating at 50% of its own rating when the load suddenly increases by 250 mw. assume that the reference power setting of each turbine-governor remains constant. neglect losses and the dependence of load on frequency. determine: (i) the unit area frequency response characteristic on a 100 mva q3. (a) base. (i) the steady-state change in area frequency in hz. (iii) the change in mechanical power output of each turbine in mw 30% (b) list and briefly describe five methods to improve power system stability. 25%
Answers: 2
Physics, 21.06.2019 13:50, lovemusic4
Aboat that travels with constant speed of 6.10 m/s in still water is to go directly across a river. the current in the river flows at 1.95 m/s. (a) at what angle must the boat be steered?
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Physics, 22.06.2019 15:00, rosehayden21
A10 kg box initially at rest is pulled 18 meters across a horizontal, frictionless surface by a 40 n force. what is the block’s final velocity over the 18 meters?
Answers: 2
An area of an interconnected 50 hz power system has two turbine- generator units rated at 500 and 10...
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