What happen to generator if i have unbalanced load?

0 Answers   Reliance Energy, Sail, TCS,

---

how to calculation increase power factor for single phase

0 Answers  

---

We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?

0 Answers   Siemens,

---

what is the speed of current?

29 Answers   Su Kam, TATA,

---

whye the current increases in the motor when the load on the motor increases

3 Answers  

---

i want to apper for apgenco or aptransco or related can any one sugest me where can i get previous papers of thouse exams

0 Answers  

---

how to find the resistance

3 Answers   Saint Gobain,

---

what is the differance between MC61C and MC61A relay of L &T make.

1 Answers   BARC,

---

CAN 50Hz transformer work at 60 Hz power supply? if yes how it is possible?

2 Answers  

---

a 100mva,400/200v transformer has leakage impdce of 10% draws a steady state line currentof---------------

0 Answers  

---

why three phase system is not preferred in aircrafts power cckts if yes than explain reasons?

3 Answers  

---

why CRGO material used in transformer?

2 Answers   Honda, Yazaki,

---