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 dont prefer ac voltage controller instead dimmerstat [if both have same rating] for conducting experiments in laboratories?

0 Answers  

---

How many lightning arrestors to be installed on 50MX60MX10M building and is there any formular for that?

0 Answers  

---

use of PIR in ehv breaker

0 Answers  

---

How the frame size of a flange mounted AC induction motor is calculated?

0 Answers   APCPDCL,

---

stand by earth fault protection (51G) for transformer rating 2000 kVA,Dyn11,33/0.400 V. LV NCT ratio and necessary resistor and metrosil values how to calculate

0 Answers  

---

A charge of 240 C is transferred in 2 minutes. The current flowing is:(a) 480A(b) 120A(c) 2A(d) 8A

2 Answers  

---

Why current transformer is earthed??

2 Answers  

---

What are the different condition monitoring techniques for a motor?

1 Answers   DAE,

---

Difference between copper earthing & aluminium earthing?

2 Answers  

---

how to do CT Burden test

2 Answers  

---

What are the types of earthing? Explain dagramatically.

3 Answers   Siemens,

---

hoe we can exlain the effect of caoacitor in fans????????

1 Answers  

---