Define unit and non-unit protection, illustrate the operating principle of differential protection and hence show that this protection does not respond to external fault.
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- For the given circuit in figure, data is mentioned. Find the fault current when the system is unloaded when the fault occurs at terminal P.Can we select components voltage references randomly in order to write KVL? Why?Using the rules for parallel circuits and Ohmslaw, solve for the missing values. ETE1E2E3E4ITl1I2l3l4RTR182kR275kR356kR462kPT3.436WP1P2P3P4
- multirange ammeter was designed using direct method to give three scales with Rsh1= 0.001285989 0, Rsh2=0.000562552 0, and Rsh3=0.000100001 Q. The d'Arsonval meter has Rm=6 Q and full scale current of 1.5 mA. Find the ranges.? 8 (Ctrl) -1. Describe the difference between regular (ohmic) resistors and non-linear/negativecomponents. How would the presence of a non-linear or negative component changehow you might analyze a circuit?Discuss the concept of an Electrical fault. How can we prevent such catastrophic incidentfor such fault in an electrical system?
- 3. Show full solution. Magnetically coupled circuits.7- DC-DC converters can be classified depending on the flow direction of current and voltage. Accordingly, which of the following is not one of the classified DC-DC converters? a) O Third Zone Converters b) O First Zone Converters c) O Second Zone Converters d) O First and Second Zone ConvertersExplain the concept of fault analysis in power systems. How is fault current calculated, and what protection mechanisms are in place?
- Q1 (i) What is an LVDT and what is it used for? (ii) Describe the construction features of an LVDT. Q2 (i) What is a strain gauge and what is it used for? (ii) What is the principle of operation of a strain gauge? (iii) Describe some applications of strain gauges.a. Describe the action of the circuit shown in the figure-1 below SPEAKER Vin REThe principle operation of LVDT is based on the variation of Select one a. Self inductance b. Reluctance c. Mutual inductance d. Permanence