Question { Bajaj Hindusthan, 4921 }

Draw block diagram BOILER COMBUSTION loop & Explain

Answer

ETP (Effluent Treatment Plant) Actually the use of this plant is to remove impurities from the waste water which was used by the plant , we never drain the impurity contaminated water before the purification.

Question { Hexaware, 2318 }

Is it weather conditions make any problems to the
electrical equipments and if yes means is it any
precautions needed?

Answer

For weather condition protection we will use various thing for indoor machines there is no need but for outdoor ie:-
for transformer we use LA
For motor & Generator we use Canopy
In summer time we use cooling arrangement for substation for CT & PT units.

Question { 4239 }

We in my plant one of the transformer showing neutral to
earth voltage is 22V how to solve it

Answer

Such types of problem occur due to increased in value of earth pit.
So 1st you checked the all earth pit values individually by opening all the grounded connections.
As per standard the values of earthing in HT yard should be less than 5volt.
If the value is greater than 5 volt then apply the procedure to reduce the value, which is different as per type of earthing (Normal or Chemical).
If the values should be comes as per rated value your problem is short outed.
If you talking theoretical part then voltage between N & E is zero.
But practically 2 volt is permissible but i.e. also not good for the system
It will affected on electronics system.
Such types of problem occur in the hilly areas or in rocky soil.
( If the value will not coming as per standard then add n....number of earth pits in series otherwise use counterpoise method.)

Question { Reliance, 1843 }

explain ht breaker in a detailed way??

Answer

HT Breaker means High tension breaker which is used for protection of our transformer before LT or x-mer we use RMU (ring main unit ) for transformer protection,if we don't use HT breakers then we use DO fuse for x-mer protection which will blow due to excess current.We also use VCB at switch yard for protection purpose.

Question { KFC, 2276 }

My meter CT is 200/5amps
Then my electrical meter MF=???please suggest

Answer

CT 200/5 ratio means if 200 amps flow in primary winding then it will be show 5 amp in secondary winding according to this phenomena it will multiply the given factor and show the current on the meter display.
But if we talking about its multiplying factor then it will depend upon its meteric unit like Mwh/Kwh.
If it will be on Mwh then MF is 1
If it will be on Kwh then MF is 1000

Question { 1534 }

In the market there is availability of MCCB & ACB (800A), So, Where i can use MCCB & ACB for the same Rating?

Answer

ACB is mainly used at LT sides for the protection of whole distribution system for the desired area supply it trips at the moment of over load or any internal short ckt in the breaker.where as MCCB is advanced version of MCB which is used for particular equipment or some groups of single phase load which trips only due to over load current.