why substation rating interms of 11 multiples???like 11kv/33kv iis there any special reason???

5 Answers  

---

what is the difference between core & shell type transformer ?& where we use those transformers ?

10 Answers   BNCET,

---

What are the different sizes of cables for H.T and L.T side of supply?

7 Answers   Bhel, BSES, Karthik Industries, Lanco, Nedco, Shilpa Electrical Engineers, TATA, Torrent Power,

---

what is the use of starter in tube light?and what it contains

12 Answers   L&T, RRB,

---

Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

0 Answers  

---

when we gave dc supply to 220v dc motor its rpm is 1200. then we gave 180v. how many rpm of its motor. gave answer with calculation at my ID.... ravizak@ymail.com

0 Answers   Godrej,

---

if any house we instaled a 1.5 ton ac and its phase cable of wiring is installed but netrual cable of wiring not instaed. my question is that is neutual of house(for other wiring is capable for ac load or a sepeart neutrual wiring required

0 Answers  

---

What are the safeties in elevators?what is the use of governor in elevator?

3 Answers   JLL,

---

why reactive power control is required

5 Answers  

---

why open-delta core of 11kv Potential Transformer is 11000v/1.732/110/3?

1 Answers  

---

In Star type and Delta type Motors, If one phase will miss/Break then which phase winding will burn and why?

4 Answers  

---

Pls explain about vfd control?Where it is used, Give some example?

3 Answers   Siemens,

---