Answer / chakri

33kv tr=300 ohm
11kv tr=500 ohm

Answer / s.naidu

Naphthenic mineral oil ( higher flash points ) and minimum
safe insulation resistance in 33KV TR-500 ohm
11KV TR-300 omh
insulation at temperaturs more than 120 to 140 c the gas
bubble are formed as a result of insulation deterioration
these is reasion of leading breake down.

Which type of motor is used in trains, what is the rating of supply used explain working principal?

0 Answers  

---

in dc shunt motor if field winding is shorted then

0 Answers  

---

Why SF6,VCB,Oil Ckt Breakers are use in HT Side need brief information ?

5 Answers   Shell,

---

What is the principle of Excitation.

1 Answers  

---

Compare jfet’s and mosfet’s.

0 Answers  

---

How is magnetic leakage reduced?

0 Answers  

---

Why we generate power at multiple of 11 i.e 11kv,33kv etc.

9 Answers   DTV Solutions, Havells, TCS,

---

How many wall/floor flange will i use in bus duct system if we have in our design a 35th floor building.

0 Answers  

---

why motor range is available 22kv,30kv,37kv,45kv and so on? why motor range is not available 21kv,24,25,26,27kv and so on?

0 Answers   Government, PSU,

---

what is inductive voltage transformer? what is its application and how it differs from capacitive voltage transformer?

1 Answers   NRSC National Remote Sensing Centre,

---

why any centrifugal blower draw more current in starting. consider id fan and fd fan?

0 Answers  

---

If a manufacturer decribes a power supply transformer as providing a secondary voltage of 24 volts when connected to a 240 volts supply, do you think they are refering to the full load or no load secondary voltage?

3 Answers  

---