I am an electrical power engineer and arranged power system
for a data center, I installed MCB, ELCB and erthing system
TN-C-S.
But some times several ELCBs Disconnect circuits at the
same time! what may be the reason? (the ELCBs are 25A ,30mA)
- 9 Answers
- 10264 Views
- I also Faced
- E-Mail Answers
Answer Posted / prashant
that means tgat u wer using those 30 mA ELCB to feed ur ac/
power sockets or some other heavier load
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.
L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.
operation of protection relay watchdog contact?
We have studied about many techniques for finding the stability of system, ROOT LOCUS, ROUTH, BODE PLOT, POLER PLOT etc. In these which is used where. what are the difference among them... PLZ tell me.......
LET ME NOW MORE ABOUT icu and ics for circuit breaker. how we calculate the rating of circuit breaker and i c u and ics values
Don't you have similar question banks related to Oral Certification Examination conducted by Mercantile Marine Departments / Directorate of Shipping, Ministry of Shipping for Electro Technical Officer?
draw the full wave and half wave circuit of 3 phase system and inverter circuit used in ups
In radial network the source is fed from 1 end both ends at central
Could the power factor on electrical system can affect the registration of the kwhr meter or the CT/PT?
List examples of current sources?
Bimetal strip used in overload relay what is that,which types of material used for that & percentage.
Explain cos(theta) and Sin(theta)
How to work meggar?
what is vtg limit of earth and neutral at transformer side?
can we install HT panel & LT panel side by side or how much clearance is required ?
