Answer / aatif alvi

Whenever we see in oscilloscope. the dc value .e.g if 3V
will become the axix and the Ac voltage will move to that
point .

whatever the dc voltage will be . AC will follow the Dc line.

Answer / vijay kumar surla

The AC voltage is the voltage between the phase and
the neutral. If the neutral is mixed with DC then you can
observe a shift in the AC voltage with the specified dc
line voltage as reference axis. But if the phase is mixed with the DC line then there will short ckt. And the fault current flow through the DC and AC lines.

Answer / murali

When the AC and Dc is mixed, there will be a shift. if the
+Dc is mixed, the ac will be shifted upward and -DC will
shift the AC downward. this can be seen using oscilloscope.
the shift will be depending on the magnitude of DC.

Answer / surendra

This is similar to phenomenon called CLAMPING the ac signal's magnitude is increased by dc magnitude,i.e it shifts above reference axis. . .

post your comments to kvv.surendra@gmail.com

Answer / pradeep

when ac and dc is mixed then spark may be occur in your
meter that cause fire..be awarte dont try this..
pradeep ojha(escorts)

Answer / md. zakir hosen

We know that ac current also contain dc part or parameter.
but in practical case when any dc supply mixed with an ac
supply then a abnormal situation will occur and system will
be unstable.but small quantity of dc may carry or used with
ac system.

thanking u
z_hosen@yahoo.com

Answer / vishvesh

if both AC and DC supply will mixed then the resultant
supply will become DC with pusating nature depend upon the
magnitude of the both the supplies.

Answer / sukhvinder

fault in system will occur.

Answer / aniruddh

if wew making a dc current mixed the current is in pulse
form &they are symetrical.

What is A check, B check, C Check & D check for a diesel Generat

0 Answers   Jtekt Koyo Bearings,

Why dc voltage used to excite alternator field in stead of ac?

4 Answers  

I am going to appear for the RRB Chennai junior Engineer online exam. Please send me the previous exams question papers (also solved) to my mail id: rrkhandhar@yahoo.com

0 Answers  

if you are in a software company,then why do you want to come in a core company like sail, ntpc(where lots of trouble like tension but you have a good life in a it company) ?

0 Answers   Sail,

what is ripple ??? what is harmonics ?

3 Answers   ABB,

As we know induction squirrel cage motor torque Directly praprortinal to applied voltage in star connection & delta also. If I connect 55KW Motor to DOL starter in load condition does motor withstand the load & what will be the current withdrawn ? motor will not fail ?

0 Answers  

What is the difference between an insulator and a dielectric?

2 Answers  

what is the potential of 11kv A.B.Switch

1 Answers   Power Grid,

Whata are the types of Cables?

0 Answers  

Why only three phase power generation are load are used

2 Answers   BARC,

what is meant by real power,active power,reactive power & apprent power ?please explain it?

3 Answers  

How much minimum insulation required between 11kv/3.3kv transformer windings?

0 Answers   Descon,