Answer / guest

variable frequency drive

Answer / ramraj beda

variable frequency drive.This drive is used to control the speed of induction motor by controlling its frequency.This is used in fans, pumps, blowers etc.

what is per unit calculation?looking for simple and strong explanation thk u

0 Answers  

---

ro plant grundfos bm30type pump.we start the pump using siemens 3rw 4423-1bc44, 30kw soft starter. bur its failier frequently. so we planed to change the dol starter. sp please tell me any budy its possible or not翿შ†

1 Answers  

---

my question is how to answer the question "you are from b.tech eee background and why do you want to go for banking

0 Answers  

---

Which addressing mode contains the address for data as a part of the instruction in 8085.

3 Answers   Ecil,

---

how to calculate neutral current in three phase four wire system

1 Answers   Auto Meters,

---

what is the reason for connecting hvdc monopolar line with negative conductors

0 Answers  

---

what is broken conductor indication

3 Answers   KPTCL,

---

Can you any one explain application of buccholz relay operation and pressure relif device operation of power transformer

0 Answers  

---

How much should be the specific gravity of a DG set battery Electrolyte.

2 Answers  

---

How would you supply a single house hold load from a 3-phase supply coming out of a sub-station?

4 Answers  

---

what is the maximum current rating in india for home?

3 Answers  

---

why transformer are rated in KVA not in watt?

7 Answers   DMRC, L&T, TCS,

---