the input mechanical power of a single alternator is
increased,its RPM increased but in case of an alternator
synchronised with grid its RPM does not increased with
increase of input mechanical power. why?
1)we have 1000 cfm Blower,Dia-1Mtr,Velocity of air 94 m/s
2)We have Natural Air velocity 94m/s
3If i Put Wind Mill in natural air ,speed is 94m/s
Then it will generate Assume 100kw
4)If i put same wind mill across the Blower,air speed is
same 94m/s now the Question is Will it generate 100 kw?
What is the current carrying capacity of 0SWG,3SWG,10 & 12
SWG solid bare overhead copper conductors?
why effective resistance should be more than static resistance
in transmission line?
2. A current i=(10+10 sin t)amperes is passed through MI
type ammeter. its reading will be.........
Explain how you intend to work under pressure to meet up with
what is the transmission loss for electrical supply?
specifically a large shopping complex where the grid is
half KM away, what will the % of transmission loss? is
there any transmission loss for captive unit generation for
In 6600/√3/110/√3v voltage transformer,how much output
voltage in open delta transformer,after removing 1-phase of
primary side on transformer?
how can we select the type of wire.what factors we have to
look on it , do we have some formula to calculate it.
please guide me on it
can anyone explain 11kV 3core cable megger,hi pot test
procedure with connection details?
how much leakage current is allowed in MC61A L&T make relay?
1. What is differential relay? How it operates?
2.How to calculate the Short Circuit Impedance in
3.What is the alternate solution for testing of polarity by
tester while its milli ammeter does not works?
4. While testing the 33KV Busbar by using Hipot kit, what
should be the test
voltage we have to apply?
5. What is the procedure/activities to be taken to inject
the current more than
2000A by using 2000A Loading Transformer?
6. Explain how you can give the overload setting to any
Relay for a HT motors with formula and example?
7. Why restricted earth fault protection is needed? Why
Protection is sufficient?
8. What should be the minimum and maximum ohmic value for
9. Why DC Currents are not used in transformer?
10. What is the Frequency while we step up the voltage from
11KV? Is it possible? Explain it?
WHAT CAUSED THRESHOLD VOLTAGE TO EXIST?
How to calculate no of EARTH PIT? Describe the formula as
per IS standard?
1. Can a 12v DC choke operate a 60v/12w PL lamp ?
2. Can a 230v ballast fire / operate a 60v/12w PL lamps.
what topics we have to concentrate for power grid
et.written test.and tell what to read for english synonyms
how can i reduce sparking without stepdowning the voltage