Interested to Buy Any Domain ? << Click Here >> for more details...
can you give main difference between ELCB And RCCB?
- 38 Answers
- 171130 Views
- MCB Bank, Reliance, Wipro, I also Faced
- E-Mail Answers
Answer Posted / sabarikumar r
ELCB is a voltage operated device.RCCB is a current
operated device.IN ELCB, Trip coil is connected between
system ground and non current carrying part of the
machines.RCCB having CBCT(Core Balanced Current
Transformer).CBCT consists of 2nos of primary winding
(P1,P2) and one secondary winding(S1).Primary windings are
in series with the load and secondary winding connected to
Trip coil.In case of healty time, voltage in both the
primary windings will be cancelled and hence no voltage on
secondary winding.During the leakge or If any body touch
the live wires of the machines, current will passing
through the body and connected to ground.It will cause the
voltage difference in primary windings and induced voltage
in secondary operates the trip coil(operating time 50ms).
| Is This Answer Correct ? | 220 Yes | 48 No |
Post New Answer View All Answers
Please tell me the power flow from pmg to main rotor of an alternator (Including AVR unit)?
I had applied for JE in PSEB, Can you pls send me the Question bank for related to my field
How many double suspension hardware fittings are required on a double circuit transmission tower?
could an induction motor be used for regenerative braking in electric-train control? in this type of application would some scheme have to be devised to obtain low synchronous speeds while braking? would induction-motor drive, therefore, be suitable for passenger service?
what are the disadvantages in GIS over AIS
What are the advantages of stationary armature and rotating field system?
why the earth is taken minimum in supplying? wather it the proportional factor to getting work any equipment or a power plant?
Define thermal resistance in the context of power amplifier.
Does the motor power displayed on the Motor name plate is the mechnical power motor delivers or it is consumed power from the system?
Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above
hi everybody how to design string combiner box (scb) internal parameters like bus bar and spd (surge protection device and fuse which place to set that,and also bus bar one particular cross sectional how much heat generated and how much power loss tell me Clearly and briefly
How to decide CT & PT ratings for a given transmission line carrying some rated voltage?
Type of motor stater detail and working detail
When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<
Difference between On Line capacitor and Station Type capacitor.
