Answer / nitin khatana

D stand for hv winding in delta and y stand for lv winding in star.
11 stand for 30 degree lead.
and Dy5 means D stand for hv winding in delta and y stand for lv winding in star.
5 stands for 150 degree lag.
The Dy5 is not a legal 3 phase connection. it is obtain from Dy1 connection by change the connection of lv star winding star(form star from a1b1c1 to a2b2c2 to form Dy5 connection)

in which direction real power and reactive power flow and why???????

3 Answers  

---

At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?

0 Answers  

---

Is there any option to replace two Genset of capacity 125KVA with one higher capacity for same office?

8 Answers  

---

what is the difference between earth and neutral?

56 Answers   Bhel, Emerson, HCL, JLL, L&T, Siemens, TVS,

---

Is it possible to control the power in transmission lines by remote controlling method?? if yes explain in details???

1 Answers  

---

how to calculate IR value of 33KV cable ??

0 Answers  

---

What is the function of an exciter in a generator?

3 Answers  

---

CAN U PLEASE TELL ME SOME G.D TOPICS FOR APGENCO INTERVIEW&G.D

0 Answers  

---

What are the types of piano switches?

0 Answers  

---

When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number

0 Answers   TATA,

---

what will happen when the dc supply is given to the capacitor?

0 Answers  

---

29 Which of the following breaking method save energy? A regenerative breaking B plugging C dynamic breaking D none of above

1 Answers  

---