Answer / uvaranjini

When the speed of the motor reaches about 70% of its synchronous speed, the starting winding will be disconnected by means of centrifugal switch (CS).

Answer / uditparashar

centrifugal switch is used for diconnecting the starting winding from the motor once it reaches the normal operating speed.

Answer / suresh

Centrifugal switch is used for when the motor speed reaches 75% then starting winding disconnecting from circuit.it is only starting purpose only.

what is the purpose of ignitor in lighting fixer

1 Answers  

---

How to select the rating of a CT used for REF protection. The rating can be of equal rating of Phase current or neutral current rating

2 Answers   UltraTech,

---

what happen if i connect DYn11 and DYn1 vector group transformer in parrallel?other things are same like votage ration,x/r ratiob etc...

4 Answers  

---

for distribution line ratio of x/r 1.<0.1 2.>10 3.>1 4.<0.01

3 Answers   HAL, HPPSC,

---

ward lconard control

5 Answers   Bhel,

---

---

what is the function of governor in dg set

1 Answers   Igarashi, Medispray, Reddy Labs,

---

What is the function of Harmonics filter, and how to calculate that rating of the energy saving?

1 Answers  

---

Form fator is the ratio of?

5 Answers  

---

what is the principle of singkle phase energy meter?

3 Answers  

---

what is the difference between RMS & TRUE RMS VOLTAGE

0 Answers   IIT,

---

what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?

0 Answers  

---

Why slip-ring and brushes are not required in squirrel cage induction motor?

4 Answers   L&T,

---