HOW CALCULATE MOTOR KW, IF MOTOR NAME PLATE MISSING, WE FIND ONLY MOTOR WINDING RESISTANCE ONLY

1 Answers  

---

what is differential relay in power transformer??

8 Answers  

---

Why annealing is done on transformer core manufacturing process?

1 Answers   ISRO,

---

pls tel me the electric train traction motors name plate details like rpm,torue,voltage,amps,watts..ect..

0 Answers  

---

I have motor 1500 HP and , 4160 V , 60 HZ , then i need the rating of transformer which can feed that motor ??

0 Answers   Elmaco,

---

---

HELLO EVERYONE, I RECENTLY HAVE FOUND ONE PROBLEM, I WAS TAKING NO LOAD TRIAL OF AN HT MOTOR 920 MOTOR , 1440 RPM , 6.6 KV, WITH AUTO TRANSFORMER. AT 450 V, LOAD WAS 40 AMP AND SPEED WAS 250 RPM. BUT AS WE INCREASE VOLTAGE FROM 450 TO 480V, LOAD BECOME 41 AND SPEED REDUCED TO SOME RPM . SO WHICH PHENOMENON ACTED HERE FOR REDUCING SPEED.?? AND IS IT HAPPENING ALWAYS OR IT IS RARE? I ALSO HAVE FACED SUCH PROBLEM WITH FEW LT MOTOR ALSO.

0 Answers  

---

when the flux enters into saturation mode then what will be the secondary voltage of the normal t/f?....high or low ? explain ...how?

1 Answers  

---

Explain the advantages and disadvantages of thermal power plant?

0 Answers  

---

i am completed diploma in ece,and working in ht and lt lines.so is elligible diploma in ece for get electrical C Licence?plse give ur opinion?

0 Answers  

---

Is there any capacitor in 3-phase IM?why,xplain.

2 Answers  

---

If not into production, how far did you follow the design and why did not you see it into production?

0 Answers   Bharti, Havells, Intel,

---

what should be the megger test report for 11KV cable when meggered with 5KV megger , what is the resistance value we should get

7 Answers  

---