Answer / b ramesh babu

preventive maitenance is the maintenance taken on the
equipment so that the breakdown does not happen. Corrective
maintenace is the action taken on the equipment after the
occurance of any breakdown to see that it does not repeat
again.

Answer / neha

preventive maintenance is the maintenance which is carried
out to prevent/avoid the upcoming breakdowns.
corrective maintenance is the maintenance which is carried
out to avoid the reoccurance of the same breakdown

Answer / ramendra shukla

Preventive Maintenance is maintenance which is done to
prevent the equipment from abnormal condition and it has
been done in scheduled manner to prevent the device.
Corrective Maintenance-it is also know as breakdown
maintenance which is done to keep the unit into normal
running condition from breakdown.

Answer / ch. tariq mehmood

as clear from its name to prevent any break down,carry out
maintenance at scheduled time, however it increases
maintenance cost. corrective means some fault has arised
and now you are going to correct it.

Answer / basheer ahmed

PREVENTIVE MAINTINANCE IS CARRIED OUT TO AVOID THE
OCCARANCE OF FAULTS AND CORRECTIVE MAINTINANCE IS DONE TO
CORRECT THE FUALT AFTER IT OCCURS.

Answer / mr.subrat tripathy.

simply,preventive maintinance is taken where not to bring
any damage to elect.equipments in normal and abnormal
conditions.
but corrective maintinance is taken for making the faulty
equipments clear(replacement may or may not require) and
connect them to the desired position again.

Answer / dharmesh

the preventive maintinansce grow product and machine
kariysamatama vadharo

What is the basic difference between 90% stator earth fault and 100% stator earth fault, and its phenmenona?

4 Answers   Reliance,

There are two nos of 33Kv/11Kv 5MVA transformers conecting through HT cable from substation having metering at substation itself.One transformer used at a time another remains stand by.Further 11 nos of 11Kv/440V transformers are attached on it and each transformer is having its own Power factor correction panel.Now one 33/11Kv transformer at no load condition/Stand by condition is having power factor in leading side upto 0.21 and while when another tranformer at same situation have power factor in lagging 0.42. Now one thing is clear that transformer one is having 1.5 Km long 33kv cable due to that PF goes in leading side and another is having only 250 mtr length remains him lagging. Now i want to know that how i can maintain the Power factor at no load/ stand by position though both are behaving in seperate manner.

1 Answers  

We need to current density & short circuit calculation at 65kA for aluminium & copper busbar.

0 Answers  

why circuit breaker closing time is always higher then tripping / opening time.

13 Answers   United Phosphorus,

how to calculate the ct burden?

1 Answers  

what is the effect of vector group while phase sequence of a generator changes,whether the vector group changes or not

0 Answers  

What is the drawback of static coefficients?

0 Answers  

what is meant by CT burden = 10 VA?

1 Answers  

what is function and advantage of double delta winding in induction generator?

1 Answers  

how to calculate the load on transformer..????

2 Answers   Bhel,

What is meant by bus bar protection?

0 Answers  

what is the use of static frequency converter and static excitation equipment? and where it is employed? for what?

0 Answers   Toshiba,