Answer / raghavendran r

ELCB stands for earth leakage CB.It trips any faulty circuit
by detecting the current flowing through the neutral.Under
normal condition, the intensity of current flowing through
the neutral must be the same as the current flowing through
phase to load then to neutral.If the intensity is not the
same then it means that the return current is deviating from
its actual path ie flowing through equipment body or if the
current is not returned properly.Now consider a case where
the return current is flowing through a operating persons
body(electrocution) after coming out from the load.
In this case, ELCB will not work because the return current
intensity flowing through the persons body is same.These
were the draw backs in older type of ELCB.
To over come this draw back RCD ie Residual Current
Detectors are used along with the ELCB which detects the
residual current deviation ie in case of any electrocution
also and then trips the Circuit.

To detect any

Answer / pramod sharma

ELCB - ELCB STANDS FOR EARTH LEAKAGE CURRENT BREAKER.

RCD - RESIDUAL CURRENT DEVICE.

WHAT HAPPENED DC SERIES MOTOR FIELD WINDING OPEN. CAN POSSIBLE.

1 Answers  

---

what is the instrument used for measuring insulator RESISTANCE

5 Answers   TATA, Transco,

---

Is there a possibility to use such a treshold voltage for the NMOS part of a CMOS circuit that during the switching it will start conducting only after the PMOS part will be already closed, by this eliminating the leakedge current? Please note, I'm not asking about the well bias in standby mode, but about the "antileakedge" measures during normal operation.

0 Answers  

---

DIFFERENCE BETWEEN TRANSFORMER AND CURRENT TRANSFORMER?

7 Answers  

---

How can we deside Short Ckt level of electrical System,Breakers etc.please provide formula to find SC of HV side & LV side

0 Answers  

---

---

what is the all safty name of diesel genrator?

2 Answers   Adani,

---

What are the types of windings present in the ceiling fan? What winding will be effective first when we started the fan?What are the resistance and inductance ratios comparatively at the initial speed and full speed of the fan?

0 Answers   MIT,

---

what is the max load on a 10 mva transformer & plz define it with its formula

0 Answers  

---

I have a 25kVA three phase transformer on our property. Will this transformer be large enough to run a large home with swimming pool, spa, 2 off full size reverse cycle air conditioners to service a 100 square house (10,000 square feet or 930 square metres)and the general power consumption of this house without upgrading to a 63kVA transformer.

1 Answers  

---

i m doing DEEE in part time,can i join regular cources in BE,,IF i join what the cources can i select like (civil,ece,IT) ,,kindly advice

0 Answers  

---

How can we Run three phase motor when only single or two phase supply is available ??

3 Answers  

---

why the all high voltage transformers are in 11kv , 33kv , 66kv, 132kv like that

2 Answers   Bhel,

---