Answer / vijay

Meaning of Residue:

A small amount of something that remains after the main
part has gone or been taken or used.

Now coming to technical understanding:

Residual voltage is the voltage that is remaining in form
of induced emf i.e., magnetic field in the windings of
generator or motor which will help in producing voltage in
generators and back emf in motors.

Residual current is the current which the sum of currents
in all the phases flowing towards and away from the node
must be zero, if it is not so the value which remains is
called residue so residual current.
I1+I2+I3+IN=0

To detect the residual current in power system RCCB & ELCB
are used.

RCCB= RESIDUAL CURRENT CIRCUIT BREAKER
ELCB= EARTH LEAKAGE CIRCUIT BREAKER.

My friend I think this information may help you.
If any correction is to be made please send the corrections
to my mail id: knownfellow7@yahoo.co.in

Answer / mano

the induced EMF when the field current is zero is known as residual voltage

Answer / amarendra barad

Dear Friends,
I think, Residual voltage means the voltage that lefts in
the source of supply after removing the main cause of
production.

Answer / rajesh

This case arises only in series dc generator
current should be sent around the poles to magnetize.
this current can the source(generator).
current is passed through poles if it is loaded.
but if it is not loaded current is zero through the field.
load voltage should be zero actually.but this dont
happen.we us egenerator frequently.due to this poles are
partially magnetized this causes some voltage appear called
residual voltage.



i haven't heard about residual current

why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?

0 Answers   Siemens,

---

which one is dangerous AC Power r DC Power for Electrical Shock ?

10 Answers  

---

How many types of electric motors are there?

0 Answers  

---

The power factor of the fixed load is 0.8, now the p.f is varying from 0.8 to 0.5.

0 Answers  

---

HOW MUCH CURRENT CAN CARRY A 50 kvar DELTA CAPACITOR BANK?

2 Answers  

---

ct connection of energy meter

1 Answers  

---

how to reduce the magnetizing current in distribution transformers

1 Answers  

---

i want to measure voltage difference between neutral and earth so i just simply use voltmeter. my question is that may i use this measure continuosly.or there are some electricity board restrication on that? or it creat some problem on my measuring device..?

2 Answers   NEEC,

---

What is the result of under frequency to the system.

4 Answers  

---

what are the types of control systems to control the speed of the motor??

1 Answers  

---

What is working principle of washing machine?

9 Answers   IBPA, Samsung,

---

I have 380.KVA DG set how to Calculate the units from DG.

2 Answers   Ozone Pharma, Sperry Plast Limited, Sterling,

---