jayasenthilnathan


{ City } thirupur
< Country > india
* Profession *
User No # 56438
Total Questions Posted # 0
Total Answers Posted # 10

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Users Marked my Answers as Correct # 149
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Questions / { jayasenthilnathan }
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Answers / { jayasenthilnathan }

Question { L&T, 69146 }

what are different types of alternator and discuss about the
methods of cooling


Answer

Alternators are classified into 2 types, they are
1.salient pole alternator
2.non salient pole alternator

Is This Answer Correct ?    52 Yes 14 No

Question { TPPL, 27569 }

what is 33 /11kv transformer bdv


Answer

it is a step down transformer, input is 33kv and output is
11kv

Is This Answer Correct ?    45 Yes 7 No


Question { L&T, 7846 }

In Plug used in house,Why Earth of the plug more thicker & deeper?


Answer

earth terminal is required to protect the human from schok
by increasing the area of the conductor resistence value of
conductor decreased. R=(ROW*L/A)

Is This Answer Correct ?    29 Yes 2 No

Question { 3483 }

why power factor laggs and leads in case of inductance and
capacitance??


Answer

power factor lags in inductive load because it have
reactive to oppoes the active power.

Is This Answer Correct ?    2 Yes 0 No

Question { Techno Engineering, 8295 }

what is the difference between UPS and INVERTER?


Answer

Inverter will convert dc into ac supply.
But ups get a ac supply convert it into dc and store it in
a back up battery, and then dc is converted into ac supply
and then suppllied to cpu.

Is This Answer Correct ?    4 Yes 3 No

Question { 6265 }

WHY AIR COMPRESOR IS STARTED UNLOADED


Answer

Air compressor is directly coupled induction motor.
Intially compressor is in loaded condition means induction
motor is not able to run the air compressor.for more
reference air compressor is widely using in agriculture
bore wells.

Is This Answer Correct ?    0 Yes 0 No

Question { 3308 }

what r the sizes of CB's? how to select CB's?


Answer

Cb beakers selected depending upon the load current. 16amps,24amps
etc like this cb are available in market.cv will trip(cut off the supply) the
load circuit when short circuit or over current flow occurs.

Is This Answer Correct ?    5 Yes 1 No

Question { Aditya Birla, 4724 }

what is use of stater and choke in tube light.?


Answer

choke is used to step up the voltage
starter is to seperate the initial voltage into two for two
ends of the tube light ,....

Is This Answer Correct ?    3 Yes 6 No

Question { 6230 }

In power generator sets, when they are coverted from 50hz
to 60hz, the kva rating after conversion increases. For
example, the manufacturer of a perkins 200kva @ 50Hz
generator set has mentioned it to become 220kva after
converstion to 60hz. What is the relation between the
frequency & the KVA rating. Any formula please.


Answer

If they increase frequency of the supply means perfomence
of the load will increased. number of cycles per second is
increased. that mean speed of the motor (load) is increased.

Is This Answer Correct ?    2 Yes 1 No

Question { Jindal, 6051 }

Difference between induction motor and synchronous motor?

i Think Synchronous motors operate at synchronous speed
(RPM=120f/p) while induction motors operate at less than
synchronous speed (RPM=120f/p – slip). Slip is nearly zero
at zero load torque and increases as load torque increases

am a right pls guide & send Other Comments


Answer

synchronous can run in lag lead and unity power factor but
induction motor run only in lagging power factor.

Is This Answer Correct ?    7 Yes 1 No