Answer / omar ashraf

Because In for Example Battery 120v , the + terminal voltage is 60 v and the - terminal is -60 v so the potential difference between its terminals is 60-(-60) =120 ,
When you measure the potential to ground so the + terminal is 60 and the other terminal is 0 so the potential difference is 60-0=60

Answer / k.prakashchandra

In case of bridge rectifier , the mid tap of the rectifier tr is earthed or two high resistances in series are connected across the charger out put terminals and the common point of the resistors is earthed . Hence the ground potential becomes (+ or -) zero

Does the motor power displayed on the Motor name plate is the mechnical power motor delivers or it is consumed power from the system?

2 Answers  

---

Can we put 3 layers of cable tray while installing tray

0 Answers   NTPC, Siemens,

---

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  

---

I am mechanical engineer,I need Training in Electrical & Electronics ( i.e. three days workshop training ) Where will I get the same Please suggest?

2 Answers  

---

what do u mean by PS-0.2-5P class of Ct

3 Answers   ABB,

---

where reactive power is used

0 Answers  

---

When i went to a interview the interviewer ask me a question for that i cant able to answer him if anyone knows answer me How will you design a capacitor bank for a plant? if my p.f is 0.6 i have to improve it to 0.9 or 1 what kind of steps i have to do? and is there any formula for calculating this?

2 Answers  

---

why auto transformer connected in star?

1 Answers  

---

what is phase angle and how its generate moreever how we measure the phasse angle?

1 Answers  

---

What is the difference between bushing and insulators.? what is the creepage distance?

4 Answers  

---

HOW WE CAN REDUCE THE CIRCUIT COMPLEX OF STAR-DELTA STARTER .BECAUSE NOW WE USING ONE TIMER RELAY & THREE CONTACTOR FOR MAIN,STAR & DELTA ?IF ANY IDEAS PLZ POST.THANK U

0 Answers  

---

My requirement is 1VA,50/5A Current Transformer for Metering .If I select 15VA , 50/5A CT.Is there any possibility of Technical Problem ?

6 Answers  

---