what is the diffrence between dol and star delta strater? why star delta starter used instead of dol?

3 Answers  

---

what phase and neutral.

3 Answers   HP,

---

Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?

0 Answers  

---

how do we calculate of transformer in va?what is calculation?

2 Answers  

---

How can we calculate the power factor of an electrical appliance ? Is there any formula ? Is there any meter around to calculate it ? And how to use that meter ? thanks

2 Answers   Essar, Philips,

---

HOW TO CALCULATE CT AND VT RATIO IN PRTECTION AND METERING?

1 Answers   College School Exams Tests, L&T,

---

working principle of generators?

4 Answers   Adani, MahaGenco,

---

What is the unit of inertia constant of rotating machines? Which has more inertia constant between turboalternator and hydroaltermanor and why?

2 Answers  

---

why bulbs when connected in series glow dim

4 Answers  

---

We've 2 diffrent DG's with same capacity (500 KVA). Can we sync them ?

1 Answers  

---

prove that power consumed in 3 phase delta system is 3 times as compared to 3 phase star system

0 Answers  

---

What is grid collapse? what is the reason for it?

0 Answers  

---