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What is the difference between the watt hour meter and Var hour meter in terms of internal connection and work theory . ie "When the meter records watt-hour an when the meter records var hours ??"
13 20345Please let me if star point(Nutral) of Delta/ Strar transformer, in 4wire (TPN+E) is tobe gruonded seperatly,inaddition to LV Panel earthing????
1 3312A long transmission line is limited by - a)thermal limited b)voltage limited c)stability limited d) L,C limited please explain with proper reason.
1 3419what must be the mf for a meter with the following conditions. line ct ratio-100/1 line pt ratio- 220kv/110v meter pt ratio- 3X63.5V meter CT ratio- -/1 A
1 3361Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . please reply..............
NTPC,
9 23105Post New Electrical Engineering Questions
True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)
dg earth connect only in the amf panel or not why
can you send me the placement papers of electrical engg. from companis like NTPC,DRDO,IOCL,HPCL,BPCL etc.?If,plz send as soon as possible.Thanks.
An 8 pole, 50 Hz, 3-phase IM is loaded to a poing where pull out torque will occur. The rotor resistance per phase is 0.3 ohm and motor stalls at 650 rpm. The rotor reactance at stand still is A 2 ohm B 1.25 ohm C 3.15 ohm D 2.25 ohm
how to select battery for 15 KVA UPS with formula
Match the following a)(X'+Y') b)X'Y' C)XY 1)NAND 2)NOR 3)Carry
Usage of flywheel diode in relays
Is neutral transformer can be called as control transformer?
completed BE & done apprentice at tneb & having experience 6 years. want to get c license. will apprentiship & BE be helpful for getting c license. will i get any preference by showing this?
what are the difference between AC lamp and DC lamp
how to Select its CORE in electrical cables based on its applications? or Application of various types of electrical cable based on it CORE?
1.WHAT IS A SMART CAPABLE DB ( DISTRIBUTION BOX) ? 2. HOW TO DECIDE THE TYPE OF DB TO BE USED ( RECESSED/ PLUG TYPE/ SMART ETC ETC? 3. WHAT IS MILLENEUM BUS BAR USED IN DB? 4.DIFFERENTIATE MCCB AND MCB.
how we can do the insulation on secondary of ct explain and so that tan delta will within limit
What is the different between conventional MCC and intelligent MCC? Common controller or controller for each bucket
What are the section criteria for cables. Now everywhere XLPE power cable is used or PVC is also used?.
