Why we use the D-curve MCBs in critical power distrubution.

4 Answers   Sodexo,

---

What happens to the terminal voltage of an alternator connected to a bus bar when it is suddenly disconnected from the bus bar??

2 Answers  

---

when i am going to take trail on a 3ph sq.i/m motor 5.5kw, i observed that RPM of the motor is very low as compared to the rated RPM and also it rotates in clockwise in first ON command,and anticlock wise in second ON command. finally i observed that on phase is no available . but iam not clear about, why the motor is rotates in both directions without any phase interchanging.pls answer to my question.

1 Answers  

---

For small size, high frequency coils, the most common core material is- a. )Air b. )Ferrite c.) Powdered ion d.) Steel

0 Answers   Ecil,

---

how calculate the electrical load for industry and office

2 Answers  

---

---

what is positive,negative and zero sequence in power system?

4 Answers  

---

how to protect transformer

2 Answers  

---

why ups rating in kva? and why ups are in parellel?.why isolation transformer is used in ups?

0 Answers  

---

How the Transformer oil testing is done & Why oil dielectric goes LOW & what is solution for that ??

3 Answers   NTPC,

---

What is the importance of counter based plan & how is it scheduled?

0 Answers   TATA,

---

the typical output of a solar cell is........

0 Answers  

---

power requirement of an l.e.d?

2 Answers  

---