Lesson 11

a) Determine total admittance and impedance. b) Draw admittance diagram and impedance diagram. c) Determine the values ​​of C and L. d) Determine the voltage ?? ⃗ and the currents ??  (Se image ! last task)

Marked out of 1.50 P Flag question 13. i) The data for a wind turbine is given below: Wind speed = 14 meters/sec, Length of blade = 10 meter. Choose the correct statement for this wind turbine. a. The input wind power to the turbine is 258 KW b. The input wind power to the turbine is 51.7KW c. The input wind power to the turbine is 25.8KW d. The input wind power to the turbine is 517KW 13. ii) Refer to the above wind turbine choose the correct statement a. The wind rotor swept area is 40square meters. b. The wind rotor swept area is 62.4 square meters. c. The wind rotor swept area is 314 square meters. d. The wind rotor swept area is 31.4 square meters. O O O O

17- The electromechanical breakdown depend on the type of the dielectric between two electrodes a- Right. b- Wrong 18- Basic Insulation Level (BIL) is related to the design consideration of the electric device, while Basic protection (BPL) level is related to protection level of the that device. a Right. Wrong. b- 19- As the voltage regulation increased, receiving end voltage will be reduced. Right. b- Wrong 20- We can be using Solar power generation field as a power factor and voltage profile enhancement in Distribution system. (aRight. b- Wrong. 21- From the general electrostatic theories, the field strength at breakdown is given by: a Eb = V/ do =0.6 [Y/ (€ o Er) ] 0.5. b- Eb V/ do = 0.6 [Y / (€ 0/Er )] 0.5. C- Eb V/ do = 0.6 [ Y/(Eo Er) 20.05. d- Eb V/ do = 0.6 [ Y/ (Eo Er) 10.5. 22- Consider plane electrodes with a solid insulator between them. Find the electric field strength at breakdown, if Young's modulus = 10000 (V.F/m2). and the relative permittivity is (36000 TT). If the…

The system having ±0.5% of F.S.D if the full scale deflection is 50 units, then accuracy is _____ a. ±0.25 b. ±1 c. ±0 d. ±0.5

2. Explain the following sensors with neat diagram. (construction, operation and applications) a) Load cell b) Turbine meter

Two persons are standing near a HV equipment and working on it, when an arc flash occurred. Person A was directly in front of the equipment and he managed to move out within 5 msec of arc flash, whereas Person B was standing at 30 deg from the equipment and moved out in 8 msec. Who do you think will be seriously affected and why?

3) 94 select the proper answer for the following: 1) The main processes that have the responsibility of arc initiation in the switching of the high voltage power system are: a) the field and thermal emissions b) the deionization of the arc path c) the photoionization and magnetic field emission 2) The dead tank term is used with: a) Bulk oil circuit breaker b) Minimum oil circuit breaker c) Air blast circuit breaker 3) The errors in the PTs can be minimized by: a) By providing a suitable turn ratio b) By increasing the winding resistance and reactance 2

This question apportion control system I need this question in half an hour

Electric Powers System for Nonelectrical Professional  Can you Identify and describe the operations of all major equipment used in substations

Question 666 electric Full explain this question only text typing

Flag question Time period of voltage waveform(household power supply) in Sultanate of Oman is ____________ sec. 0.05 0.02 0.04 0.01

id 15186 18course id- 18678 18content id 220760 18question rum t Apps M Gmail YouTube Maps Remaining Time: 53 minutes, 27 seconds Question Completion Status: A Moving to another question will save this response. Question 6 In a capacitive load, the current angle: Lag the voltage by 90. In phase with the voltage angle. Between 90 and -90. Leads the voltage by 90. A Moving to another question will save this response. docx. . . . اختبار الاقتصاد النه docx. . اختبار الاقتصاد النه A ll slaislI Lisl.docx aill slail lil.docx aill sle ENG 4) A ETVIE 69 R T Y U O OP S F G K 1S 16

The strain gauge can be classified into three types which are not  based on __________________________ Principle  a. Thermoelectric  b. Electrical c. Piezoelectric  d. Mechanical

Q: 1 Choose the appropriate answer(s). (CLO1-1, PLO-2, CL-4) a. Check all statements that apply (points can only be obtained if all boxes are checked correctly) Wind power ... (a) .is uncertain (True) (False) (b) ...is intermittent (True) (False) (c) ..is random (True) (False) (d)..can be forecasted (True) (False) b. If everything else remains constant, when a significant load is added to the system the generator rotating speed (a) Slows down and as a result the torque needs to be increased to keep the frequency (b) Speeds up and the resulting torque can be used to produce more energy (c) Speeds up and the turbine must slow down the generator to prevent damage c. The Hellmann formula describes . (a) solar irradiance depending on the thickness of the cloud cover. (b) the failure rate of power transmission lines depending on their length. (c) wind speed depending on height above ground. (d) the peak-to-average rate of load in a distribution feeder depending on average load. d. An…

Q2/ A telephone company operates three identical stations at different locations. During one-year period, the number of malfunctions reported by each station and the causes are shown below. Station C 1 1 A B Problems with electricity supplied 4 Computer malfunction 3 4 Malfunctioning electrical equipment Caused by other human errors 7 7 (a)Suppose that a malfunction was reported and it was found to be caused by other human errors. What is the probability that it came from station C (1.5 mark) (b) If a malfunction was reported because of computer malfunction, which station is most likely reported the malfunction? (1.5 mark)

How do I do question 2? Are the systems time varying or time invariant?

21 Q2/ The one Per-unit impedaunce digram line digram 3-Phave pouser System. Draw the G: 50 MVA, 13.2 KU , Xg = 0.2 Pu Tig 30MVA , 13.2/220KU, XT,=0-1s P4 Te 30MVA, 22./11 kU, X+Z=0.15pu T3:30MVA , 13.2/132 kv, XT,=0.15P4 Tu:30MUA 132/11 KV, XTzo.15 Pu M: 70 MVA, lo.45kv, Xm =0.2 p4 Load, 53 MVA , lo.45kv, o.7 P.R (Lag) line1: 22o ku, Xline I=4oA %3D line2: 132 kv, Xlinez = 6or Te 220 132 36 Ty load 38 Select a Common base of 90MUA ,13.2kv on the generator Side

The squaring function, shifted 7 units upward.

Figures / Diagrams, equations and solving of problems should be written by hand. Take a picture of it and attach it inside the word file. a) High Voltages are preferred for Transmission of Electricity. Why? b) Why Generation Voltage Levels are low in the range of 11 kV/ 33 kV etc? c) Why ACSR Conductors are preferred over Copper Conductors? d) Overhead Transmission Lines are preferred for Transmission of Power for Long Distances, why? e) Alternating Current is preferred over Direct Current in Power System, Why? f) Write the Installed Generation Capacity of Sultanate of Oman with current energy share of Conventional and Non-Conventional Energy Sources. g) Why the Capacitance effect is neglected in Short Transmission Line. h) Distinguish between Lumped or Distributed elements in a Transmission Line.

I need a correct answer not a wrong answer please do it Question: Write the necessity of power supply and briefly describe different types of SMPS and UPS

once. Force Completion This test can be saved and resumed at any point until time has expired. The timer will continue to run if you leave the test. Remaining Time: 34 minutes, 38 seconds. * Question Completion Status: A Moving to another question will save this response. uestion 1 What is the maximum recommended limit of RMS voltage (in percent) for continuous operation of shunt capacitors under contingency condition? O 110 120 130 135 A Moving to another question will save this response. 直 0 a hp

Question 777 electric  Full explain this question and text typing work only thanks

Question 2 Not yet answered Marked out of 1 P Flag question Which one of the following is not a subsystem of solar energy plant? a. Power generation from water turbine generator O b. Energy conversion in the solar concentrators c. Heat energy storage O d. Water circulation inside the collector

Assume that you were tasked to install a microwave oven using 12 AWG copper. When you look at the spec plate for the oven, you discover that the oven is rated for 240V, 60HZ, and takes a current of 25A. The location for the oven is 785.7 Ft, away from the breaker panel. Calculate the expected VD if any. Assume temperature to be 75 ̊ C     what is the answer? VD?

It provides AC during emergency such as multiple engine failure

A Moving to another question will save this response. Quèstion 8 In class A chopper supplying a DC motor, if the back emf of the motor increases then the motor current increases the motor current decreases the load current will remain constant None of the above A Moving to another question will save this response. week10.pptx week9.pptx

Electric Powers System for Nonelectrical Professional can you describe effective preventive maintenance programs used for substation equipment

A galvanometer is used as a _________a) current sourceb) voltage sourcec) null detectord) input impedance