sir i have applied for isro-09. still i did not got the HALL TICKET.

2 Answers  

---

length of 4 core cable 95mm from substation LV VFD panel to Motor at field approximately 150 meter. Motor stop and power has been isolated from LV MCC ( Substation )to disconnect Motor for services. After Motor completed service propose to reinstall and reconnect Motor Cable, found earth cable sparkling during touching at metal / motor body. Inspect by clamp meter found earth cable have current flow AC 1-2amps and all earth cable at MCC LV also have current flow as same value. why it is happen?

2 Answers  

---

where we use 1 phase & 3 phase supply ?what is major advantage using 3 phase over than single phase ?

3 Answers  

---

how braking & making capacity of circuit breaker is calculated?

0 Answers  

---

why DG sets power factor is 0.8 lagging.

1 Answers   Cummins,

---

what happened if power factor is "1"

9 Answers   Reliance,

---

what are the differences between MCB and MCCB ?

19 Answers   Bhel, DLF, Omax,

---

% voltage variation in distribution a)1% b)5% c)10% d)15%

2 Answers  

---

What is cable tray, its type, and its support?

0 Answers  

---

Shall I use 40A semiconductor Fuses in 32 A SFU ? Frame size is same. What Happen if Fuses burn on SFU?

0 Answers  

---

What is the formula to calculate the rating of power cable for three phase current.

0 Answers  

---

in control scheme dc logic wiring commonly using negative loop,what is the reason?if we use positive looping what will happen?

0 Answers   DNJ Energy LLC, WI,

---