Concept explainers
Want to see the full answer?
Check out a sample textbook solutionChapter 28 Solutions
Delmar's Standard Textbook Of Electricity
- What is the relation between length of span and sag?: a. sag is directly proportional to square of span b. sag is inversely proportional to squareroot of span C. sag is inversely proportional to square of span d. sag is directly proportional to squareroot of spanarrow_forwardanswer using kirchoff's lawarrow_forward2.35 For the circuit shown in Figure 2.29, convert the voltage sources to equiv- alent current sources and write nodal equations in matrix format using bus 0 as the reference bus. Do not solve the equations. 0.02 0 2 0.10 0.10 j.5N j.5N ーi19 Esi = 1.0 /30° V Es2 = 1.0 /0° V HIarrow_forward
- e = 0 Q1: What does happen if we change two currents? a. Q2: What does happen if we have a three-phase four poles machine? Q3: What does happen if we have a two-phase two poles machine? e = 0 Q4: What does happen if we apply a capacitance in phase b and then use same voltage for both phase. Dr. Ali Ki. pw --arrow_forwardVoltage fluctuations will be there for consumers at distant end in Ring feeder O Radial feeder O Interconnected system O Bus systemarrow_forwardHow to solve this using kirchhoff's law?☹arrow_forward
- An over head transmission line supported from two towers location at the same level. The distance between the towers is 200 m. The tension in the wires is 9000 N. The weight of one meter of the conductor is 10 N. The sag of the wires is * 2.55 m 1.55 m 4.55 m 5.55 m Non of themarrow_forwardThe ---_characteristi cs shows the relation between the generated e.m.f at no load and the field current. O a. internal b. non-magnetic C. external d. magneticarrow_forwardEMF in a circuit is ____. a. Cause current to flow b. Maintains potential difference c. Increases the circuit resistance d. Decreases the circuit resistance e. None of the Choicesarrow_forward
- 2. (a) (b) (1) A 100 kVA, 4000 V / 200 V, 50 Hz single-phase transformer has 100 secondary turns. Determine: The primary and secondary currents. The number of primary turns. Three single-phase transformers are connected in Delta- Wye (A-Y) as shown in Figure 2.1. Each transformer is rated 100 kVA, 2300/13800 V RMS, 50 Hz. The total three-phase load L is 270 kVA with a power factor of 0.866 lagging. The input voltages are: VAB = 23000° VBC = 2300 Z-120° VCA = 2300 120° Assume that the transformers are ideal and the line-to- neutral voltage on the secondary are in phase with the input voltages. A B C 100000 100000 b narrow_forwardQuestion No.14: Draw and explain working of pumped storage power plant. What is flow duration curve? What are the uses of flow duration curve?arrow_forwardQ4/ (A) What is the voltage measurement Vx-y , for the circuit shown below. 4v 4v 20 50 yarrow_forward
- Power System Analysis and Design (MindTap Course ...Electrical EngineeringISBN:9781305632134Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. SarmaPublisher:Cengage Learning