Answer / kalirajan.n

servo is an automatic device which uses error-sensing
feedback to correct the performance of a mechanism. The term
correctly applies only to systems where the feedback or
error-correction signals help control mechanical position or
other parameters. For example an automotive power window
control is not a servomechanism, as there is no automatic
feedback which controls position—the operator does this by
observation. By contrast the car's cruise control uses
closed loop feedback, which classifies it as a servomechanism.

Answer / subbu anna

A servomechanism, or servo is an automatic device which
uses error-sensing feedback to correct the performance of a
mechanism. The term correctly applies only to systems where
the feedback or error-correction signals help control
mechanical position or other parameters. For example an
automotive power window control is not a servomechanism, as
there is no automatic feedback which controls position—the
operator does this by observation. By contrast the car's
cruise control uses closed loop feedback, which classifies
it as a servomechanism.

Servomechanisms may or may not use a servomotor. For
example a household furnace controlled by thermostat is a
servomechanism, yet there is no closed-loop control of a
servomotor.

Answer / er. ankush miglani

first of all it is servomechanism not sero mechanism
it s used to serve any system an error free mechanism
it uses a feedback signal for the correction of the output
signal'

Answer / dhaval

trasformer is a static device which have no rotating part
and a device which used to step up and step down the
voltage from high value to the low value.

what is basic difference betmeen normal & flame proof motor??

0 Answers   Dynamics,

---

wow to calculate the transformer rating(KVA)

0 Answers  

---

HARMONICS ARE ALWAYS IN INTEGER LIKE 2ND OR 3RD HARMONICS,NOT IN FRACTION LIKE 0.5 HARMONICS.....????????

2 Answers  

---

PLEASE SEND ME NTPC RELATED INFORMATION LIKE WHICH TOPICS HAV MORE SCOPE,BOOKS TO READ,CUT OFF...PLEASE.mail at thiru.1203@gmail.com

0 Answers  

---

Define delay time.

0 Answers  

---

---

WHAT IS MEANT BY vfd(VARIABLE FREQUENCY DRIVE )HOW CAN WE APPLY VFD TO MOTOR ? I WANT FULL DETAIL IF ANYBODY KNOW THE WEBSITE FOR THAT PLZ SEND .THANK U

2 Answers  

---

which motor is used in electric train...???????

27 Answers   ESPL, IOCL,

---

What is transformer tap changers please explain

3 Answers   Feedback Venture, Sail,

---

what is inrush current in transformer?

17 Answers   Bhel, Essar, GMR,

---

What is the exact load current needed for a place which has 100nos of bulb of each 100w?

2 Answers  

---

what is total power generation in tamilnadu What are the methods used powerfactor improved? which place DC transmission line usde?

5 Answers  

---

What is master trip relay? How does it work?

1 Answers  

---