Answer / vaseekaran

MCCB is used where the system voltage is up to 600v ac.motorized MCCB's are used more that 630A rating.In normal (manually) operated MCCB's we have to charge the spring manually every time when it changes to off state.in motorized MCCB's it will automatically charged the spring with the help of spring motor and ready for the next operation.these motorized breakers are very usefull in the auto change over system.

Answer / k.prakashchandra

In motorised ,the spring charging and cubicle draw-out are
with the help of a motor

Answer / k.prakashchandra

In the motorised ,the spring charging and cubicle draw-out
are with the help of motor

Answer / sri

motorized mccb is remote controlled mccb

what is magnetizing current test in power transformer

0 Answers   ABB,

---

In case of salient pole alternator when number of poles are 4 or more than 4 it helps the flux wave to be sinusoid as air gap length is increased from center to tip , but if the number of poles are 2 how does the flux wave is sinusoidal?

0 Answers  

---

what is anti-pumping relay and the significance of it in a switcgear cb control system?

1 Answers  

---

How can calculate ups battery back up time?

25 Answers   Cisco, Cooper, Pronet, Wipro,

---

define digital electronic

0 Answers  

---

---

What is potientometer.How it is useful in a sychronoscope.

1 Answers  

---

what is the cause of voltage dipp or swell in the transmission lines?

0 Answers  

---

Why donot sleep below the tree for night time?

12 Answers  

---

What kind of maintenance is conducted for Transformer

0 Answers   Gulf, UB Engineering,

---

how do skin effect is reduced when hallow cond or stranded cond are used ?

1 Answers  

---

Is possible to increase the voltage without using transformer? why?

9 Answers  

---

What is the constructional difference between ceiling fan and table fan

2 Answers  

---