IF we want to replace I/C bay at our 220 kv substation which
is of 140 mw load capacity bay to be replaced by 400 mw
capacity bay.other than CT(1200/1) what are the other
equipment i have to replace.
How do you find HT and LT sides of a distribution transformer only by looking at it from outside?
how to calculate the surge level of surge suppressors related to the SF6 cicuit breakers?
What is the starting current of a motor?
why we are using DC violtage for testing of cables....which is used in HV AC applicatons...
explain why the armature voltage changes when the field rheostat is varied in self excited DC generator
Dear Sirs, I am a technical persons.In one of our Electrical Sub- Station, We have installed three numbers of 1250KVA ,11KV/0.415KV Transformer to feed the Factory load. We have found some abnormality. In one of our Transformers the leakeage current from transformer body to earth through earth continuity wire is almost 86 Amp but in other transformer it is (5-10)Amp. where the load current on three phase and neutral are respectively 1360Amp,1400Amp,1370 Amp & 176Amp. So please any technical person help me about the reasons of this situation and how I can rectify the fault. Moreover,I have measured the earth resistance of the Earth continuity wire which is less than 1 Ohm. Thanks Tapas Barua
How to improve insulation resistance of Motor
explain remenance . differentiate high remenance type ct & low remenance type ct
As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.
What are the causes of having an rmu explode after installation? And how do u treat the bushings of an rmu?
what is lowest system voltage?
List any four conventional sources of energy.
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