Answer / vinod

smooth start and stop.
no jerking of load.
exact posiitoning
better protection for motor.
high/low speed selection.
reliability of break shoe.
programmable break control.
easy circutry
reduction in controls
increases motor life

Answer / sivaramakrishnan.s

Starting current is limited mostly to 1.5 times of motor
Full load current
as there is no contactor for power control maintenance is
less

What is the Ideal Earth to Neutral Rating for Techonology Equipment like Routers, Switched, PABX, Computers etc etc?

2 Answers  

---

what is DG A,B,C,D check?

1 Answers  

---

Is it required to use Automatic transfer Switch in L&T panel board if we use AMF panel with DG set? How the single line diagram will be? Please forward the material to sreenu_207@yahoo.co.in

0 Answers   HAL,

---

who is ohm's and his law ?

1 Answers  

---

What is mean by staling?

2 Answers   UPPCL,

---

Determine the minimum cable size for a 28A single phase final sub circuit originating from the distribution board supplied by three phase submain. The route length of the final sub circuit is 54 m. Assume 1% voltage drop in the consumer's mains. Submain specification: Cable: 50mm2 4 core V75 copper; Route length 42m; Maximum demand 135A per phase

1 Answers  

---

How can make a star delta with Rstar delta feeder ( ( 4contactor & one timer ) pls answer with digram (power &control digram)

1 Answers  

---

If ct ratio is 250/1 and mtr is of 5 amp, what will be mf?

1 Answers  

---

What is the diffrence in between Class PS & Class 5P10 for CTs

7 Answers  

---

what is a power factor?

0 Answers   MPWU Kiribati, Thermo,

---

what is AVP?

2 Answers  

---

the process cynide is used for?

2 Answers   MAHINDRA,

---