Answer / vinodh.t,sil,bellary

class-a
1.differential
2.over fluxing
3.residual over voltage
4.field failure
5.startup current
6.100% earth fault
7.low forward
claa-b
turbine trip+low forward
class-c
1.0ver frequency
2.under frequency
3.negative phase sequence
4.thermal over load

Answer / pj

yes

Answer / v_ram

hi vinodh....
is there any class-d trip in generator?

Can we use shunt trip coil instead of trip coil with protection relay for protection?

0 Answers  

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what is maximum demand.

9 Answers   HP,

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why we r used DC megger insted of AC megger?

1 Answers   Adani,

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In a ordinary plug can we hold the earth in hane and connect the circuit to supply?will we get a shock?

5 Answers  

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What is nichols chart?

0 Answers  

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CPC cable .PVC \1C....I want to get sure that type is flexible indoor or to be install on trench. please advice .thanx :)

0 Answers  

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it is possible to run 130V AC and 230 V AC cables run in same tray

2 Answers  

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why always out of the 3 phase(RYB) of supply, in Y phase w.r.t the voltage is higher? on R & B phase the voltage will be lower as compared to Y phase?

1 Answers  

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why generator and t/f ratings given in kva & motor rating is in KW?

6 Answers  

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what is meant by slip & where its occur ?

5 Answers   Lanco,

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What is difference between Over Current & Earth Fault protection?

0 Answers   ABC,

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what happens when a DC supply is given to AC motor?

9 Answers   Areva, ISMT,

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