What is the difference between an ELCB and a RCD?
Answer Posted / 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
Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
please give me all the Alarm .Trip ,Safety Relays & Conditions of UPS Systems mail me on ashokbabunhce@gmail.com
Who are the manufacturer for Nitrogen based Fire Protectio/explosion prevention for Oil Filled Transformers? India and international both?
for 5KW resistive load can anyone please suggest me whether to go for UPS/Inverter or Generator depending upon cost calulations
How to decide whether A / B / C / D curve type MCB should be used?
Define peak time.
What is the Surge for 1.1 Phase Induction Motor(For Eg.1Hp) 2.3 Phase Induction Motor(For Eg.1Hp) 3.AirConditioner(For Eg 1Ton) 4.Refrigerator(For Eg 180Ltr or 160kW) 5.Induction Cooker 4. Ceiling Fan
Difference between drift current and diffusion current?
Showing results for capital, machinery, stock,wages, carriage in words, salaries, factory rent, repairs, fuel and power, buildings, debtors, sales, purchases, creditors, return outwords, return inwords, drawings, discount allowed, discount receivable, office expenses, bills payable, bills receivable, cash in hand, cash at bank, office rent comes under debit or credit
which type of questions asking for solar companies?
can you please send me the technical questions and aptitude questions of honeywell and jindal steel electrical engg. question paper my e-mail ID is(kkesavanraj@gmail.com)
How to Calculate the Fault Level of Electrical Installation
What is Auto Mains Failure Panel & Auto Synchronizing Panel
sir my exam is on 19/6/2013 under electrical branch pls send me sample aptitude questions as well as sample technical questions for jindal steel and power company
What shall be the secondary output voltage if the primary winding of a 220/6V, 50 Hz transformer is energized by an 110V, 60 Hz supply?
what is the maximim current drawn by 1 phase and three phase welding machine