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What are FACTS (Flexible AC Transmission Systems) devices, and how do they enhance the control and stability of power systems?

Describe the role of FACTS (Flexible AC Transmission Systems) devices in enhancing the control and stability of power systems.

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Q) A P-Pole three-phase induction machine with spatial distribution of stator windings is assumed to be sinusoidal A) It is desirable to express the Xs (0m) function for each phase in terms of conductor/radian B) It is desirable to calculate Tag(t,Oe), each phase

A Turgo type hydro-electric plant uses a 92% efficiency generator to produce its rated output of 32.5 MW. It was observed during its operation that the mechanical loss is 4.25 MW. Also, from the penstock down to the turbine, 14.3% hydraulic head loss and 8.9% leakage loss occurs which are equally distributed and based on the parameters at the dam. The average elevation from the headrace to the jet centerline is 40 m and from the tailrace to the jet centerline is 4.5 m. compute the following:   a. Power by the turbine, kW   b. Volume flow rate at the source, m3/s   c. Power by the jet, kW   d. Mechanical Efficiency, %

Comment Shard Q9: Salalah city is planning to install a 3.0 MW wind turbine. The turbine has a 112 m rotor diameter and the power/speed curve shown in Figure Q9. During the daytime hours (7am to 7pm) the wind speed is 12 m/s and the cost of electricity is $100/MWh. During the nighttime hours the cost of electricity is $50/MWh and the wind speed is 6 m/s. Assume that the air density is constant at 1.2 kg/m³. Determine the power output, wind power input, and efficiency of the turbine/generator during the daytime hours. Determine the power output, wind power input, and efficiency of the turbine/generator during the nighttime hours Calculate the daily revenue that the plant earns from selling electricity. 3,000 2,500 2,000 1,500 1.c00 s00 25 Outout kW)

Discuss motherboard power delivery systems, including voltage regulators and phases. How do they impact system stability and overclocking capabilities?

By comparing the principle of operation of a "three" phase generation system with a single-phase system, state what are the bendfits of three phase systems? In your own words, define the "skin effect" in transmission lines and discuss how can it be minimised? Name three advantages of AC transmission in comparison to DC transmission. What are the units of active, reactive and apparent power? The current in a single-phase motor lags 50° behind the voltage. What is the power factor of the motor?

Problem) Fill the blanks of the following questions:    (1) For a boost chopper, if current increases from Imin to Imax during Ton, then the input ripple current equal to ............. (2] single-phase AC controller classified into.............    (3] In AC voltage regulator when firing angle increased, the rms load voltage.......   [4] The half wave ac controller has rms output voltage equal to input rms Vs at..........    (5] In single phase bidirectional ac controller, the RMS output voltage can be varied between zero to.............. of input voltage

Explain the importance of load flow analysis in power systems. How does it help in optimizing the operation of electrical grids?

(c)Derive EMF Equation of the DC generator

Which type of wind turbine has a higher cut-in speed and lower efficiency? O a. VAWT- drag type O b. HAWT O . VAWT-lift type O d. VAWT- hybrid type

Discuss the significance of FACTS (Flexible AC Transmission Systems) devices in enhancing power system stability.

A synchronous generator with a synchronous reactance of 1.5 p.u. is connected to an infinite bus whose voltage is 1 p.u. The maximum permissible power output is 1.2 p.u. (a) Compute the excitation voltage. (b) The power output is gradually reduced to 0.7 p.u. with fixed field excitation. Find the new current and power angle δ.

To improve power factor by static capacitor method. If the capacitance per phase is increases, then current taking from supply is Does not change Increases O Doubled O Decreases In synchronous condenser method to increase power factor, synchronous motor is act as capacitive (Capacitor) nature at O No load, rated excitation condition. Full load under excitation condition O No load, under excitation condition. No load, over excitation condition. 0S の ENG 10/C

A synchronous generator connected to an infinite bus is supplying 50 % of its rated power at a lagging power factor. Discuss the consequences of increasing the steam input to the prim mover of the generator while maintaining the excitation at a constant value. 9.

true or false and why...

What is load capacity? What is the load capacity of a typical residential area, a city? What precautions are practiced by electric companies in terms of loading capacity? When is distribution box needed in terms of electrical supply?

Two synchronous generators operate in parallel and supply a total load of 400MW. The capacities of machinnes are 200MW and 500MW each, both have frequency dropp charactoristics of 4% from no load to full load. Calculate the laod taken by each machine assuming free governor operation. Also find the system frequency at this load.

A synchronous generator is rated 645 MVA, 24 kV, 0.9 pf lagging. It has a synchronous reactance 1.2 . The generator is feeding full load at 0.9 pf lagging at rated voltage. Calculate: (a) Excitation emf (E,) and power angle & (b) Reictive power drawn by the load Carry out calculations in pu form and convert the result to actual values.