i want to know about the scope of IT engineers in ONGC

2217

---

How to calculate Ith (I thermal) for curent transformer

2084

---

substation+ plc system

2081

---

Dear all i am kumaravel. now in chennai. my work is control and relay panel auto cad designing.up to 11kv to 400kv then question is i am improving my knowledge. i want some books name and auther are available for this C&R panel related. plese any one help me

1776

---

Why AC & DC capacitor are use in UPS ??????????????????

2121

---

what ispositive, negative, zero sequence impedence?

2030

---

how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test. why transformer rating in always in KVA ? what ispositive, negative, zero sequence impedence? How ElCB tripping if Neutral touch with ground Why AC & DC capacitor are use in UPS ? why motor rating in KW? how to syncronize two dg sets

2189

---

can i get Mahagenco sample question paper?

2060

---

Why only sinusoidal ac voltages are generated?why not triangular or sawtooth?

2093

---

can a deareator be placed at any height with care that suction (NPSH) for feed pump is satisfied

1994

---

i have design dc-dc 3-way isolator circuit,how to test psrr,response time,limit frequency

2036

---

In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.

2124

---

When calculation of fault current and fault Kva is to be done,why always we use per unit value and why we consider the base kva?

1905

---

write 2 important assumption on fin theory?

2074

---

why we are using earth pit in sub stations.?

2169

---