Answer / vinayak

Even 10 mA current can cause a lot harm to human body. It can cause cramps, loosening of hands, and can cause some pain when allowed for shorter period, and can cause much harm if persist for longer duration of time.

what should be the value of helathy insulation b/w two cores of LT cable.

2 Answers  

---

for same rating of a transformer and induction motor which one will have higher magnetising current flowing?

2 Answers  

---

WHAT SHOULD BE THE BEST CURRENT RATINGS (PRIMARY / SECONDARY)FOR A CT INSTALLED AT THE INCOMING 11KV PANE? WILL IT BE CALCULATED ON THE BASES OF MAXIMUM DEMANT VALUE OR ON SUM OF ALL TRANSFORMER'S KVA? NOMALLY MAX DEMAND REPRESENT THE MAXIMUM OPERATING LOAD OF THE PLANT AND TOTAL KVA OF (SAY 5 NUMBERS TRANSFORMERS) REPRESENT THE CONNECTED LOAD. WHICH i.e. MAX DEMAND KVA OR CONNECTED KVA ARE BETTER TO USE FOR CT CURRENT CALCULATION? PLEASE ANSWER.

0 Answers  

---

I am an electrical power engineer and arranged power system for a data center, I installed MCB, ELCB and erthing system TN-C-S. But some times several ELCBs Disconnect circuits at the same time! what may be the reason? (the ELCBs are 25A ,30mA)

9 Answers  

---

in ONAN type transformer winding temperature is lower than oil temperature at evening time but morning winding temp is higher than oil temp what is the reason?

2 Answers   Areva,

---

Why does the phase voltage of two healthy phases become equal to the line voltage in case of an ungrounded neutral 3 phase star connected sytem when a single line to ground fault occurs ?

2 Answers  

---

what happens to current , when voltage drops .?

11 Answers  

---

If AVR fails in DG set what will be the affect?

17 Answers   GoodYear, Hotline Glass, HSL,

---

How to calculate u.p.s load parsentage plz give me formula

1 Answers  

---

Why design 150Hz in Exciter

1 Answers  

---

One 200 V, 100 W bulb is connected in series with primary of a 200 V, 10 kVA transformer. If its secondary is kept open circuited, then the bulb would have (1) Full brightness (2) Poor brightness (3) A little less than full brightness (4) More than full brightness...explain

2 Answers  

---

two bolbs of 100w and 40w respectively connected in series across a 230v supply.which bolb will glow bright and why?

16 Answers   DRDO, PSPCL, Siemens,

---