Plz solve within 30min I vill give definitely upvote and vill give positive feedback thank you sir 22A consumer is supplied at 380V 3 phase from a 11 kV substation through a 1500 kVA11kV/380V transformer and a 380V cable as shown in Fig. Q2. An overcurrent relaysupplied through a 3000/5 C.T. is installed at the low voltage side of the transformer toprotect the cable and the consumer. The fault level of the 11kV substation is 250 MVA.The impedance of the transformer and the 380V cable are shown in Fig. Q2.i) Calculate the maximum fault current which the relay will be expected to measure forany type of fault in the 380V system.MVAse 250 MVAII1x₁-x₂=X₂-5%Z₁-Z₂-0.005 +10.005Zo 0.01 +0.00511 XV1500 KVA11 kV/380 V3000/5Fig. Q2380 V

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22 A consumer is supplied at 380V 3 phase from a 11 kV substation through a 1500 kVA 11kV/380V transformer and a 380V cable as shown in Fig. Q2. An overcurrent relay supplied through a 3000/5 C.T. is installed at the low voltage side of the transformer t protect the cable and the consumer. The fault level of the 11kV substation is 250 MVA The impedance of the transformer and the 380V cable are shown in Fig. Q2. i) Calculate the maximum fault current which the relay will be expected to measure fo any type of fault in the 380V system. 1500 KVA 11KV/380 V 3000/5 MVAse 250 MVA 1x₁-x₂=X₂-5% 2₁-2₂ -0.005 +10.005 Zo-0.01 +10.005 380 V I

22 A consumer is supplied at 380V 3 phase from a 11 kV substation through a 1500 kVA 11kV/380V transformer and a 380V cable as shown in Fig. Q2. An overcurrent relay supplied through a 3000/5 C.T. is installed at the low voltage side of the transformer t protect the cable and the consumer. The fault level of the 11kV substation is 250 MVA The impedance of the transformer and the 380V cable are shown in Fig. Q2. i) Calculate the maximum fault current which the relay will be expected to measure fo any type of fault in the 380V system. 1500 KVA 11KV/380 V 3000/5 MVAse 250 MVA 1x₁-x₂=X₂-5% 2₁-2₂ -0.005 +10.005 Zo-0.01 +10.005 380 V I

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 3.58P: A single-phase two-winding transformer rated 90MVA,80/120kV is to be connected as an autotransformer...

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