Answer / a.p.nanjappa

It is just the Client /owner/consultant choice.

As there are many protections in turbo alternater grouping
them in class A and B category indicate the severity of
faults and guess the extent of damages.
Class -A category need special attention and to be analized
cautiously.Ex- Generator differential means there is serous
trouble to identify the cause. Generator winding
damages,flash over..., It needs generator inspection and
tests. If it is ok then proceeds to Operations.
Where as Class -B an overload, overcurrent,under voltage...
secondary importance.Operational proceedure can be
followed.No need to trip units.However ,occurance of classB
protections also trips the turbo-alternator with time delay.

How can we choose the rating of submersible motors

0 Answers  

---

at the time of starting back emf of a motor is zero.so how can it will start to run??

1 Answers  

---

Why the Transformer Nuetral is grounded?

10 Answers   Infosys, Khartoum Refinery,

---

expalanation for 5p10 class.

6 Answers  

---

WORKING PRINCIPAL OF MCB

5 Answers   TATA,

---

What is difference is of VSD,VFD,VSDS, are they the same as the direct current to control dc using above mention

0 Answers  

---

how to calculate the earth fault current

0 Answers  

---

WHAT IS BASICS TO SELECTION OF 11 kv Trasformer, send any calculation sheet for selection of transformer

3 Answers   NBCC,

---

When star connection of motor is use?

1 Answers  

---

after applying C-License in how many days we get it?

2 Answers  

---

How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.

0 Answers  

---

three phase 180kva diesel generator can take how much load in amp and what is formula to get this?

13 Answers   lenovo,

---