give example situation in every field of practice in electrical engineering: Consultation, investigation, valuation and management of services requiring electrical engineering knowledge Design and preparation of plans, specifications and estimates for electric power systems, power plans, power distribution system including power transformers, transmissions lines and network protection, switchgear, building wiring, electrical machines, equipment and others. Supervision of erection, installation, testing and commissioning of power plans, substation, transmission lines, industrial plans and others

give example situation in every field of practice in electrical engineering: Consultation, investigation, valuation and management of services requiring electrical engineering knowledge Design and preparation of plans, specifications and estimates for electric power systems, power plans, power distribution system including power transformers, transmissions lines and network protection, switchgear, building wiring, electrical machines, equipment and others. Supervision of erection, installation, testing and commissioning of power plans, substation, transmission lines, industrial plans and others

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.16MCQ: In developing per-unit circuits of systems such as the one shown in Figure 3.10. when moving across...

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Substations have the functions of: Transmission Elevator, Subtransmission Lower and Distribution, according to their purpose. The common characteristic of the types presented is their objective, which is to modify the characteristics of electrical energy. Substations have sets of conductors, equipment and devices, and with these sets they work to ensure performance and safety in the electrical distribution system. Substations are also responsible for switching, protection, voltage and current transformation, reactive compensation to direct the power flow and enable its diversification through alternative routes, or a combination of these in the Electric Power System (SEP) . Describe the role of substations in the distribution of electricity, and what is their relationship with the primary and secondary distribution, describing the consumers of these demanded loads. PLEASE TYPEABLE BECAUSE THE LETTERS GET IN THE UNDERSTANDING.
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Explain the concept of FACTS (Flexible AC Transmission Systems) devices in power systems. How do they enhance the controllability and stability of electrical grids? Provide examples of FACTS devices.
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How to generate 480V three phase 400Hz ac from 230V three phase 60Hz ac source? (Please specify the power components you pick, such as transformers, dc-dc converter, dc-ac converter and/or ac-dc converter, how these components are connected and the key parameters of these components, such as the turns ratio of transformer and the duty cycle functions for the converters.)
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7. TY Hat CHICL Ans. 1. Iron los.........varies approximately as V². 2. Cu loss..........it also varies as ² but decreases with an increase in voltage if constant kVA output is assumed. 3. Efficiency...........for distribution transformers, efficiency at fractional loads decreases with in- crease in voltage while at full load or overload it increases with increase in voltage and vice- versa. 4. Regulation..........it varies as but decreases with increase in voltage if constant kVA output is assumed. 5. Heating.........for constant kVA output, iron temperatures increase whereas Cu temperatures decrease with increase in voltages and vice-versa. quems
Q2. (a) Explain what is per unit system? What are the advantages of per-unit computations? Prove for the problem given in part (b) that PU impedance of the circuit element connected by the transformers expressed on a proper base will be same if it is referred to either side of a transformer. (b) A 3-phase, A-Y transformer with rating 100 kVA, 11 kV/400 V has its primary and secondary leakage reactance as 122/phase and 0.052/phase respectively. Determine the PU reactance of transformer referred to primary side and then secondary side to prove that it will be same.
What effects are produced by change in voltage? 1. Iron los..........varies approximately as V². 2. Cu loss..........it also varies as V² but decreases with an increase in voltage if constant kVA output is assumed. 3. Efficiency...........for distribution transformers, efficiency at fractional loads decreases with in- crease in voltage while at full load or overload it increases with increase in voltage and vice- versa. 4. Regulation..........it varies as but decreases with increase in voltage if constant kVA output is assumed. 5. Heating.........for constant kVA output, iron temperatures increase whereas Cu temperatures decrease with increase in voltages and vice-versa.
Describe the components of a typical electrical power system and their functions, including generators, transformers, and distribution networks.
SUBJECT: Elements of Electrical Machines DesignINSTRUCTIONS: - Please write clearly and understandable way. - Write all the corresponding Given with their corresponding symbols and units. - Draw/Illustrate the diagram/circuit or drawings that is related to the problem, IF POSSIBLE, which is HIGHLY REQUIRED. - Solve in step-by-step, no shortcut - Underline twice the Final Answer.PROBLEM: In connecting ideal single-phase transformers in parallel, how will the load be shared if the two transformers have different VA rating?