What is the diffrence between an ELCB(earth leakage circuit
breaker) and RCCB(residual current circuit breaker)?which
has higher degree of safety and why?
Answer Posted / rvg
ELCB having protection against earth faults, but RCCB having
over current protection as well as earth fault protection.
So RCCB having higher degree of protection.
| Is This Answer Correct ? | 20 Yes | 5 No |
Post New Answer View All Answers
IF 8255 CONTROL WORD IS 94H,Tell the chip port work mode ?
what is meant by skew width in machines?
How much should be the load percentage for 15kva Inverter and Iinut & I output load with Calculations
Igfet is a
Please tell me the earthing procedures adopted for the STAR-STAR 3 Phase transformer in india and give a better sugession for earthing
What is the formula to calculate the size of Aluminium and copper cable?
What is the difference between a Root Locus plot and a Bode plot?
What is meant by derating factor?
why normally Generator rating are between 11Kv to 22Kv?
we are going to install a solar PV site and how can we calculate PV Solar Panel Efficiency, can anybody tell me complete method for its calculation.
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<
How can calculate the earthing strip of Copper/GI for rating of 30kV,discharge current 10KA Lightning arrester.
when ac current flows thru d coil of a contactr,it energizes,magnetic field attracts d contact of the coil...nw wont dt ac current in d contct induce current back on to d coil thru mutual inductance leading to high currnt in d coil
Explain what is use of lockout relay in ht voltage?
what is a reactive power? what is the relation with power factor?