why should a transformer be never connected to dc supply

5 Answers  

---

what is the disadvantage of lagging power factor & why ?

2 Answers  

---

1)what is hypo test. 2) which cable need to hypo test.3) when hypo test can be done before or after glanding.4) what is the purpose of hypo test.

5 Answers  

---

why the perameters of secondary circuit are more important then that of the primary circuit of induction motor?

0 Answers  

---

what is the 2MVA distribution transformer efficiency

1 Answers  

---

---

What is the frequency of dc current????

4 Answers   SCS,

---

I have motor 1500 HP and , 4160 V , 60 HZ , then i need the rating of transformer which can feed that motor ??

0 Answers   Elmaco,

---

Why cables and busbar both needed in LT Panels?

0 Answers  

---

what is the difference b/w neutral and ground?

4 Answers  

---

What is plc and how to do preventive maintenance

1 Answers  

---

Why glands not provided for XLPE cables

1 Answers   Saint Gobain,

---

temp of cast resin 1500kva tx formerwent up to 138.c but came down very fast to about 100.c within 20 mins when load was reduced from 70% to 60%

0 Answers  

---