Answer / balu

In star connected motor is used for low torque purpose.

And delta connected motor is used for high torque purpose.

Answer / geetartha

star connection is used for ht motors and delta connection
fot lt motors

Answer / 3nath

from above ans's which one is correct

Can a 50-Hz designed transformer be used at 60-Hz system? Is the same remains true, when a 60-Hz designed transformer be used at 50-Hz system? Consider only frequency variation. The voltage remains as rated value in all cases. Justify the answer.

2 Answers  

---

Can anyone tell me how a 12v battery is transformed to 20,000v at the spark plug

6 Answers  

---

how to stop oil leakage in power transformer.

1 Answers   APGenco,

---

On a 10 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 65 AH). What Shall be the current rating of DC MCB ?

6 Answers   RR, TNEB Tamil Nadu Electricity Board,

---

What is thef ormula to calculate the rating of a capacitor for a single phase motor

2 Answers  

---

---

how to get bearing & winding temperature of an induction motor?

0 Answers  

---

Benifits of 3ph 4 wire metering over 3ph 3 wire

0 Answers  

---

is there interlocking between duty and standby chilled water pumps?

1 Answers  

---

The magnitude of sum of two sinusoidal av voltage is equal to 230 volt.the magnitude of each individual voltage is also equal to 230 volt.what must be the phase difference between voltages?

0 Answers   PGVCL Paschim Gujarat Vij Company Limited,

---

WHAT IS THE DIFFERENCE BETWEEN NUTREL AND EARTHING

10 Answers   Areva,

---

Define reserve-generating capacity?

0 Answers  

---

flurescent bulb rating is to 230v,50HZ.now flurescent connected 230v,25HZ.whether nreduced frequency will affect the glowing properties of flurescent.

6 Answers  

---