Answer Posted / vishal aggarwal

765 kv

how to find ratio of CT & PT in 66/11kv 12 mva supply system ? explain with calculation.

2409

---

what is the main parts of transformer? how it is functioning? pls giv the ans briefly.

1961

---

How can calculate the rating of a servo stabilizer for given a specific load

3523

---

Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?

2306

---

What happens when two positively charged material is placed together?

1139

---

what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????

2344

---

prove that power consumed in 3 phase delta system is 3 times as compared to 3 phase star system

2272

---

1))why we run three phase or three different circuit from a single conduit 2)) why not two circuit of different phase run in same conduit?? and why we run same three cicuit of same phae run in single conduit??

2559

---

what is th basic difference between a d latch time line and a d flip flop time line???

1984

---

What is difference is of VSD,VFD,VSDS, are they the same as the direct current to control dc using above mention

1520

---

When the relative speed between the magnetic fields of stator and rotor does is zero under steady state operation?

1272

---

typically in power distribution substation. 1- Any idea how would be the graph of capacitor bank consumption verses time through the day . 2- How is the switching ( on and off ) of the capacitor bank, per need?

1734

---

what is the disadvantages of common earthing for AC and DC equipment? (i am talking about inverter control room and inverter duty transformer earthing is common...?)

1676

---

please send me previous year questions of jspl through which i could prepare myself for the test.

1874

---

hi can any body send me syllabus of rrb electrical section engg... and past pepar also of any board...

2684

---