In a remote area, electricity is supplied through a radial 11kV power network. The voltage at customer end was found at 8% below the nominal voltage. Is this voltage level acceptable to a customer and what is the stipulated limit of the company?
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- 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 UPSThere are 144 fuel cells are joined in a series through interconnects.there will be 4 stacks having 36 cell in each stack.these stacks are then oragnised in series and parallel combination to form a single module to deliver required voltage and output power.this SOFCs module then combined with CHP system to get thermal . From this data answer the following questions. a)Calculate voltage losses of module?.this question is very compulsory. b)Electrical efficiency of module? C)Thermal efficiency when module combine with CHP system? D)Combined electrical and thermal efficiency? The input parameters of single cell are given below: Ocv=1.020 Current density=2250mA/cm2 Power density=850mw/cm2 Cell active area= 121cm2 Net power=15kw System fuel utilization=80% Operating temp=550°c Cell voltage=0.8v Power of single cell=103 watt.3. (a)What does FACTS stand for? Name 2 series and 2 parallel FACTS devices. Explain one of these devices you mentioned (b) A 150 MW power station delivers 150 MW for 1 hour, 100 MW for 2 hours. 50 MW for 6 hours, 20 MW for 10 hours and is net operated for rest of the day. It is also shut down for maintenance for 30 days each year. Calculate its annual load factor. (c) What does IDMTL stand for? Sketch the diagram of a protection system showing the various protection elements. Explain how the system works.
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- Explain how electricty power is generated and tramnsimitted to customer unit. Show The single line diagram of a typical distribution system. Also Explain different methods of electricity distribution and the equipment used for different methods of electrical distribution.A generator operating at 50 Hz delivers 1 pu power to an infinite bus through a transmission circuit in which resistance is ignored. A fault takes place. reducing the maximum power transferable to 0.5 pu whereas before the fault, this power was 2.0 pu and after the clearance of the fault, it is 1.5 pu. By the use of equal area criterion, determine the critical clearing angle.A power generation plant connected to bulk load of high voltage industries shown in Figure Q3 has specifications given in Table Q3. Each equipment reactance is expressed in per unit on a common base of 100 MVA. a) Find the fault level for each bus bar in the generation plant. GI G2 TI Figure Q3: Single line diagram of a power generation plant Table Q3: Specifications of power system components Power System Component Voltage Rating X MVA Rating (kV) (pu) GI 50 33 0.2 G2 40 33 0.18 50 33/11 0.1 T2 40 33/11 0.1
- What are the key factors that influence power quality in electrical grids?A generator operating at 50Hz delivers 1 pu power to an infinite bus through a transmission circuit inwhich resistance is ignored. A fault takes place reducing the maximum power transferable to 0.5 puwhereas before the fault, this power was 2.0pu and after the clearance of the fault, it is 1.5 pu. By theuse of equal area criterion, determine the critical clearing angle.Explain the detailed process of Power Grid Extension