Answer / sreedarsh.b

the tansformer oil ambient temp is 40 degree celcious and the ambient temp for the winding is 55 degree celcious.
the fault temp depends on the class of insulating material used in the winding.

Answer / chandrasen mourya

Ambient - 50 deg
Oil- 40 deg
Winding - 45 deg

what is full form of dyn11( in transformer)

5 Answers   Divis Laboratories,

---

what is the formula to calculate the distance between one phase to another phase in single phase line and 3 phase line for different volt for example ; 33kv, 11kv ,22kv,230v

1 Answers   Suzlon,

---

megger how much voltage will produce ?

4 Answers  

---

When we use a multimeter, while checking continuity of a closed circuit , what is happening inside multimeter, how it is working to produce a beep wheather it is closed or open.. is there any internaly voltage/current source inside multimeter?

3 Answers   TNEB Tamil Nadu Electricity Board,

---

what is meant by twilight switches 7 where its applicable ?

0 Answers  

---

How to select KW/HP rating of motor for particular application? Is there any relationship od RPM?

1 Answers  

---

Why electric traction is used ??

3 Answers   IOCL,

---

what is the acb tripping & closing voltage.

2 Answers  

---

On what basis no of earth pits are to be decided either for transformers or for equipment?

8 Answers   BEL, Reliance,

---

ho can we calculate the conductor insulation value according to their ratings like voltage,current etc.how insulation value related with voltage,current and power of amachine

0 Answers  

---

what is resticted earth fault protection ? how did it protect & work in power transformer

3 Answers  

---

What will be the effect of circulating current in HT xlpe cable when both the armour ends are grounded. Will the termination fils after some time in case of 33 kv supply.

0 Answers  

---