22kV HT incoming should be 3 phase or 4 phase? why is it not 4 phase?

1 Answers  

---

difference between analog pressure gauge & digital pressure gauge?

1 Answers  

---

For testing 33kv cable hipot testing. How much kv we have to Apply .Give in details.

24 Answers  

---

WILL SCHNEIDER MAKE ACB(MASTERPACT)TRIP ON REVERSE POWER?

0 Answers   Schneider,

---

How can make a star delta with Rstar delta feeder ( ( 4contactor & one timer ) pls answer with digram (power &control digram)

1 Answers  

---

what is the difference between RTD & TERMO COUPLE?

1 Answers  

---

WHY HVDC?

3 Answers  

---

How calculate the MTA in relay?

1 Answers   Unicharm,

---

how the high voltages are produced?and what it causes?

4 Answers  

---

Between Turbo alternator and Hydro alternator which one is more difficult to cool and why?

2 Answers  

---

what is the merz prodution ? what is the turn to turn fault?

2 Answers   L&T,

---

what is the type of winding connection( star or delta) in 1HP to 5HP motors. How to check the motor winding connections( star or delta) if not provided in the nameplate?

5 Answers  

---