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hii.i am a B.TECH(EEE) graduate.i want 2 know wat type of qusns r asked in sbi clerk interview 2 candidates like me??kindly post answers ASAP..1 1207
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How do we measure earth fault current in Generator Transformer(20/420kv),Station Transformer(20/11 kv) and Unit Transformers(20/11kv) for our plant system, since these don't have any Neutral earth Fault relay connected to their Neutral Earth? But for Unit Service transformers(11/.433 Kv) we have an Earth Fault Relay connected to its neutral earth.Why is such so?
A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,031113
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why voltage form factor of PT are increase , when it is ecpected heigher spikes in system. how it is calculated.
what is the difference between the following 2 situations ? 1)Line & Neutral=240V Line & Earth=230V Neutral & Earth=10V 2)Line & Neutral=230V Line & Earth=240V Neutral & Earth=10V2 4860
What is the effect on power factor, shown by a trivector meter; incase of reverse phase sequence. If the power factor of a system is lag what meter will show in case of reverse phase sequence connected to the meter. and What in case of lead.
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hi Is there any possibilities to find out the rotation of a shaft or something else by using electromagnectic waves or by IR rays.If s then can v change the dir., of rotation of the same by remotely?& how? plz dn't any1 say "NO r CAN'T"
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