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what is the difference between Earth and neutral? and what is the difference between ground earthing and neutral earthing?
2 6011Hi All, I am working as a Technical executive in a MNC company and we have 1500KVA & 1250KVA T/F in our site, can you help me that how many maintenance tests can be conducted and what are the procedures included for the tests can you share yours answers and also give any web address to get more information on this
5 9923How many types of relay are present in a VCB and ACB, what are the tests we can conduct on both breakers and how to set the relays values
2 47829what will happen if one of the phases from a 3-phase motor is disconnected?? stop/run at 2/3rd speed or run at same speed????
3 7475in battery charging room we find two fuses (one in positive other in negative cables ).why it is so?one fuse is ore than sufficient?
2215Post New Electrical Engineering Questions
how can i improve the power factor in domestic (230v)
what are the available sizes of pin type terminal lugs in the market today?
ASTM D 3455 - Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin has been used for Testing Transformer Oils with a product placed in it. Aged Control Oil has a Power Factor of 0.032% at 100°C. Aged Oil with a Test component has a Power Factor of 0.093% at 100°. Is this increase acceptable? If not why? How much increase is acceptable?
what is the best transformer oil breakdown voltage?
what is the series parallel connection of capacitors? and how can we use these application in three phase motors for controlling torque?
WE ARE PLACE A NEW 75 KW MOTOR FOR JPF.IT IS CONNECTED IN M.C.C. WHEN WE ARE STARTING M.C.C.INCOMER IS TRIPPED.THEN WE ARE CONNECTED IN P.C.C WITH A MM30 RELAY PROTECTION THEN WE ARE STARTED MOTOR WILL RUN SMOOTHLY.
Why we do 2 types of earthing on transformer (ie:)body earthing & neutral earthing , what is function. I am going to install a oo kva transformer & 380 kva dg set what should the earthing value?
some time we open engine breaker 8.0 MW load but plant not trip. and another time engine open 4.0 MW load engine trip why? individually engine breaker open & individually emergency stop why difference?
In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?
what is meant by power and distribution transformer ?
In electrical locomotive engines, the DC series motors is being used as traction motor. But in new engines like in WAP7 & WAG9 the 3-phase squiral cage induction motors has replaced them. So can someone tell me the advantages of induction motor over dc seris motor in engines points of view....???
how to select the isolation tranformer for siemens 802dsl cnotroller
what is sevice settings for mccb?How can be it setted?
In power transmission using open belts or horizontal shafts it is preferable to have the slack side of the belt on the top because
How to calculate per unit impedance of transformer?
