Answer / pillay

Anybody can temper an energy consumed meter if you know how
it works but it is plain cheating. No society condones cheating.

what are the types of cooling systems used in motors?

2 Answers  

---

How can we calculate the transformer rating if the load calculated is 1000KW (11Kv Supply)?

0 Answers  

---

what is the difference between HV and LV Breakers?

4 Answers   GM General Motors, OEG,

---

As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

0 Answers  

---

What we change frequency from transformer. yes or no

3 Answers   Intas,

---

For 7.5kw star delta starter how to calculate 1. Mccb rating 2. Contactor rating 3. Over load relay rating

1 Answers   L&T, MAHINDRA,

---

In a large office how do we calculate required number of light fittings, assuming fittings are 4x18W or 2x36W fluorescent fitting ?

0 Answers  

---

Why earthing transformer used in Distribution Sub-Station?

3 Answers  

---

what is mean impedance?

7 Answers   ONGC, Wipro,

---

What is the distance b/w R&Y phase in 33kv T.line,11kv &440v

1 Answers   NTPC,

---

WHAT HAPPENS IF STARTER OF A FLUROSCENT LAMP IS SHORT CIRCUITED AND WE PUT THE SUPPLY ON?

1 Answers  

---

can we run a motor rated 50Hz,415vac,1440RPM At higher speed then rated on name plate with the help of VFD /drive on long term basis.wheater it will effect the motor life

3 Answers  

---