Answer / manikandan

by using rectifier we can convert ac to dc and by using
choke or capacitor filter we can control dc output

Answer / gopal

rectifire is used to convert the ac in to dc but the
rectifier are to types according to voltage level.for low
voltage diode are used as a rectfire,we cannt control the
output of diode,in high voltage system SCR thyristor are
used as a rectifire,we can control the DC output of the
thyristor.

Answer / apoorv

we can easily convert ac to dc by using rectifiers or diodes. dc output can be controlled by usingphase controlled rectifiers , which employ scr's. by properly trigering scr's , with proper firing angles, and commutation circuitry, dc voltage , can be controlled.

what is working of no & nc.

8 Answers  

---

If we have to find the inductance of a dc shunt motor then by giving dc supply or ac supply and what is the reason for it. (this example is from "to determine the transfer function of a dc shunt motor ")

0 Answers  

---

if harmonics is generates on the secondary side of transformer then why we put LC ckt on prim side?(i m talking abt rectiformer transformer)

0 Answers  

---

How many types of lightings are there

2 Answers   ABB, Met Trade,

---

what do you mean by star point.its importance in ct & pt

2 Answers  

---

why capacitor burst?

2 Answers  

---

how induction motor starts?

4 Answers   JSL,

---

why are the maintaine power factor and how can this control and this is how work.

0 Answers   Mukand,

---

what is the knee point voltage ? what is differtial rela? what is impedance and % of impedane? what is the postive phase sequance ? negative phase sequane ? and zero sequance impedance ? what is sortcircuit calculaion? why take calculation? define stabilty test ? why? what sentivity test? define merz protection ? what is the burden ? class 5p10, accracy, metering ct take knee point voltage test thet time what heppan why dont take knee point test to metering ct?

0 Answers  

---

what is the working of vfd drives.

2 Answers  

---

What is the purpose of SSVW, IOVW, DVDF Tests in transformer? Those who are answering, pls send mail ids also.

1 Answers  

---

What is difference between Electrical & Electronic Device? 

7 Answers   AZ Engineering, Vodafone,

---