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Why dont we get shock while testing for voltage with a line tester? How the bulb inside the tester glows while testing with tester coz we are totaly isolated from earth or we are not giving close path for the current to flow?
3 16753What is the operational principle of direct current current transformer and direct current potential transformer?if possible plz reply with ckt. diagram.
1 4668i am BSEE student, my project study is to synchronize the generator of an hospital, it have a one 313KVA standby-power diesel gen.,and three 100kva transformer.The generator system is operated manually and no ATS or UPS. one more new building is being build so the transformer will be upgrade to a higher vale. 1)how i can connect the new gen. to the old gen. and to the synchronize panel? 2)what is the new gen. to be buy?(rating, etc.) These is my title: To synchronize the generator system of the ____ Hospital. Anyone have a good title? Thanks.
1 3734in a dc motor we supply current only to the armature conductors,from where is the field winding gets excited then??
3 6110please send me previous year questions of jspl through which i could prepare myself for the test.
1874Is there any option to replace two Genset of capacity 125KVA with one higher capacity for same office?
8 93491)which height building required lightning arrester? 2)how to calculate the requirement of lightning arrester? 3)what is the pro instrument? 5)how to test protective relay like overload?earth fault relay?
1 16883How can you calculate in detail the VA burden of current transformer used for Restricted earth fault protection? Please understand that the CT required here is Class PX or X. Also please show the calculations for knee point vtg, stabilizing resistor, magnetising current.
3 16843what is the significance of terminal voltage and phase sequence in the operation of paralleling of two generators?
2546Post New Electrical Engineering Questions
1)Explain why the cradle guard is used on railway crossing in overhead line construction?
Dears we deal in Chemical are Plate earthing. Kindly call if any requirement and questions. Tech Earth Solutions Mohit Verma 8791071007
what is the calculation method to design core and winding of a 200kva 3phase distribution transformer?
what happen if the parallel generator phase angle shift by 1 degree in manual mode
WHAT KIND OF LIGHTENING PROTECTION SCHEMS CAN BE ADOPTED FOR THE FLAT ROOF OF BIG DIMENSION.
Who are the manufacturer for Nitrogen based Fire Protectio/explosion prevention for Oil Filled Transformers? India and international both?
what is RFCT and Insulgard Relay & It's function?
ht side line to earth voltage
dg earth connect only in the amf panel or not why
reason of diode failure in alternator
hello friends..... any one have papers or any study materials?sail ,hpcl...?
whats the existence of reactive power and when it arises?
how we findout a ignater is faulty or not?
why sielent pole is used only in hydro generators and not in turbo generators
hi frnds what is meant by harmonics & what is meant by third hormonics,where its will occur ?thank u
