How to calcluate the current by means wires/cables in square mm

2 Answers  

---

What is the diffrence in between Class PS & Class 5P10 for CTs

7 Answers  

---

why we r not earthed Control cable of C.T. terminals

0 Answers   HCC,

---

how 650 volts creates? where is use?

0 Answers   DCL,

---

if i am in front of transmission line how to know that current direction without any equipment

0 Answers  

---

Will The Rated Capacity of 20 MVA ,220/6.6 KV, ONAN cooling Power Tranformer be increased up to 25 MVA with respect to its %Impedence by ONAF cooling with same rating..?

2 Answers   Ambuja,

---

I Have 100Ah battery with 650VA Inverter, i WANT TO TAKE a Solar panel to charge my battery, so please suggest me,what rating of solar panel(with solar charge controller) can buy for a load of 450w for 4 hours

1 Answers   Chevron,

---

I HAVE 2 nO'S OF SYSTEMS, HOW MUCH UPS CAPACITY REQUIRED ALONG WITH 400WATTS ANOTHER LOAD? PLEASE GIVE THE FORMULA?

1 Answers  

---

How single phase & 3 phase motor select rotating direction ie clockwise/anticlockwise

6 Answers   DRJ ARDE,

---

how can calculated the rating of the 11 KV transformer?

6 Answers   NBCC,

---

Transfer function is == ? a. Mathematical model b. System with no physical structure c. Can be calculated through differential equations

1 Answers   CCP,

---

I have carried out wiring for lighting in a shed in Industrial area which contains Metal halide lamps & have balanced in 3ph.Now when we put all the lines on in the daytime the current taken at 3phases at MCB comes to be equal i.e.28,29,28Amps respectively but in the night time i.e between 7p.m.to 11p.m. at the same MCb the current is 52,59,62Amp, though I have fit 63A MCB it is tripping in the above period.What may be the reason.? Note: This industry is located in industrial area where majority of steel ingot manufacturing plants are there. Whether this may be due to harmonic? what should I do to overcome above problem.pl suggest urgently.

4 Answers  

---