POWER SYS. ANALYSIS+DESIGN
6th Edition
ISBN: 9780357700907
Author: Glover
Publisher: INTER CENG
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Students have asked these similar questions
1/ Power loss due to corona is:
a. Inversely proportional to frequency.
b. Proportional to frequency.
c. Frequency does not effect.
d. All these answers are wrong.
2/ We prefer High voltage DC (HVDC) transmission system than High Voltage AC
transmission system according to the cost, when:
a. The distance of the line is more than B00 km.
b. The distance of the line is less than 300 km.
c. The distance of the line is equal to 300 km.
d. All the above answers are wrong.
3/ HVDC Transmission has lower corona losses than HVAC Transmission because:
a. HVDC Transmission tower is less height than HVAC Transmission tower.
b. HVDC Transmission system work with zero frequency than HVAC Transmission system of
50 Hz.
c. HVDC Transmission currents is uniform distributed in the all cross section of the
system conductors than HVAC Transmission due to skin effect.
d. All of the above answers are wright.
How will you ensure minimum cost for the generation of required power for a given load? You may neglect transmission line losses. Support with mathematical formulations
Complete the sentence
The power factor must be close to ……………. To insure that losses in the transmission lines will be reduced
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- The maximum power flow for a lossy line is somewhat less than that for a lossless line. True Falsearrow_forwardExpand 6k=13m=12Dkm.arrow_forwardThe following parameters are based on a preliminary line design: per unitVS=1.0, VR=0.9 per unit, =5000km,Zc=320,=36.8. A three-phase power of 700 MW is to be transmitted to a substation located 315 km from the source of power. (a) Determine a nominal voltage level for the three-phase transmission line, based on the practical line-loadability equation. (b) For the voltage level obtained in part (a), determine the theoretical maximum power that can be transferred by the line.arrow_forward
- lnAk=lnAk True Falsearrow_forwardiv. For a long high voltage transmission line with light loading : (a) The voltage is generally high due to reactive power generated by the line. (b) The voltage is generally high due to the light loading. (c) The voltage is generally high due to high reactive power generated and the low reactive power consumed by the line.arrow_forwardd) Calculate the per unit voltage drop on the transmission line e) Calculate also the sending end voltage Use an overall base of 100 MVA.arrow_forward
- Please answer in short and dont copy i will like.... A. For underground and underwater transmission, why are line losses for HVDC cables lower than those of ac cables with similar capacity? B. What are the benefits of controlling of power flows on individual lines? What are the risks?arrow_forwardWith the system shown in figures, use 100MVA as system base, and 230 kV as base voltage along the transmission line. 1. Build the Y-bus matrix without the Load. What is the element Y12 in susceptance value? 2. If you are to convert the real power load to a shunt conductance, what is the value of the conductance in per unit?arrow_forwardDiscuss three negative effects that result from the effects of the construction of a transmission line (during its construction and after)arrow_forward
- 9. Why in medium and long transmission lines, regulation is greater than voltage drop?arrow_forwardDescribe the effect of resistive load on sending and receiving end voltages, Power transferred and Power factor.arrow_forwardFor a 80 km transmission line given the values of R=0.5 22/km and X= 7 22/km. Find the admittance of the transmission line in per unit. Take base values as 125 MVA and tos kV.arrow_forward
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