A 100 kVA , 400 v/250 kv testing transformer has 8% leakage reactance and resistance on 100 KVA base . A cable has to be tested at 500 kv using the above transformer as a resonant transformer at 50 hz . if the charging current of the cable at 500 kv is 0.4 A find the series inductance required . Assume 2% resistance for the inductor to be used and the connecting leads . Neglect dielectric loss of hte cable . what will be the input voltage to the transformer ?

0 Answers   L&T,

---

why delta delta connection generally not use in transformer

4 Answers   Lanco,

---

what are the main Parts of VCB

1 Answers  

---

Explain Energy and Power signals?

0 Answers   UOG,

---

Why we use duplex coil and hook switch in telephone system?

0 Answers  

---

what difference between tapping -15% to +5 % and -5% to +15% tap. & how can define HV turns on maximun & minimum tap of power transformer.

2 Answers  

---

What is mean by spike arrester(Voltage Operated)

0 Answers   Siemens,

---

How can i get my certificate of competency as an electrical supervisor? I have complicated my B.Tech from Uttarakhand technical university this year (2012).

0 Answers   ONGC,

---

which circuit takes max. load & which circuit takes min. load i.e. SERIES CIRCUIT OR PARALLEL CIRCUIT??

3 Answers  

---

what is use of substation? Any book on how to instal or construction of substations?

6 Answers   Siemens,

---

battery capacity use of made?

0 Answers   JLL, Shankar Electricals,

---

i had aplied Hindustan Petroleum corporation limited for the post of maintenance technician -Electrical,i want model questions,if anybody have please send it or please advice?

0 Answers  

---