In aircraft,why we use 400 htz equipment.and use common earthing

1 Answers  

---

what will happen if the secondary of current transformer kept open....

11 Answers  

---

WHEN THESE TRANSFORMERS WINDINS CONFIGURATION ARE USED? SPECIALLY EXPLAIN REGARDING STEP UP AND STEP DOWN KEEPING IN MIND.AND REGARDING LOAD ALSO. a.star to delta b.delta to star c.delta to delta d.star to star ALSO EXPLAIN WHY V USE 415/415 TRANSFORMERS IN TUBEWELLS?

1 Answers   ABB,

---

if harmonics is generates on the secondary side of transformer then why we put LC ckt on prim side?(i m talking abt rectiformer transformer)

0 Answers  

---

1.What will be stored in online ups EPROM IC?

0 Answers   IBM,

---

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,

---

why resistive load has unity power factor,inductive load lagging and capacitive load leading power factor?

3 Answers   OEG,

---

what rectifiers is and what are the types of rectifiers?

0 Answers  

---

plz tell me in my que,how to connect thw electrical wirening in house?

1 Answers  

---

How we calculate the average power factor if the one phase is lag and another one is in lead?

1 Answers   DigiTech, MCR,

---

Is a direct shorth ciruit on a branch MCCB in a Low Voltage Switchboard a correct means of tesing the performance for discrimination?

0 Answers   Adani Power,

---

where we use compound motors in real time and why?

2 Answers   TATA,

---