why we use choke in tubelights nad other lighting fixer

1 Answers  

---

in a refinery one motor is suddenly stoped. what will do how can i findout the problem explain step by step

2 Answers  

---

What is boucholz relay and the significance of it in to the trformer?

0 Answers  

---

3phase cable calculation formula by motor load

0 Answers  

---

I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?

0 Answers  

---

DG cranking voltage?

0 Answers  

---

Differentiate between real and apparent power?

0 Answers  

---

when a cunductor is being disconnected from live cct, still it showing charged, if its checked by line tester?

8 Answers   GEB,

---

WHAT IS DIFFERENCE BETWEEN idmt and instentanous relay? is idmt is used as back up protection or else?or when instantenous relay saturates IDMT will operate???

1 Answers   BK, REL,

---

how could we calculate the no of outgoings from a 800 watt distribution board

0 Answers   United Engineering,

---

can anyone tel me what is competency of electrical supervisor??

2 Answers   ONGC,

---

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  

---