Answer Posted / k.prakashchandra

As you open the contacts there will be heavy arc between contacts ,intensity depending on voltage ,current and weather condition. The arc will break as the separation increases and there will be a heavy sound . Insulators in the vicinity may be damaged due the heat produced by the arc . Never try it

what should be the no load current for 3 phase ac motors ranging from 5 kw to 1000kw?

1843

---

when 20hp 3 phase motor start no load condition in star or delta connection.find current and write formula.(tariq)

2123

---

State uses of different types of stsrters with different capacities of motors as below: a. up to 5HP b. above 5hp to 10hp c. above 10hp to 20hp d. above 20hp

2131

---

Does magnetomonopoles exists? one maxwell equation strongly suggests no, but how about their existance in plasma?

2050

---

in wind mill use 2100 kw asychronous generator ( induction generator ) rotor voltage : 3300,stator voltage : 690, rpm : 1511 type : MRL063E04 ' we check rotor resistance magger value found following. R-EARTH - 00 M.OHM,Y-EARTH-34 M.OHM,B-EARTH- 33M.OHM R-Y: 31 M.OHM, Y-B: 00 M.OHM,B-R :33 M.OHM HOW CAN I TAKE DECISION?pls ans. quickly

2349

---

write encoder 17 pins details? pin a;b+, pin b;w+,..pin s & t. what is the meaning of b+, w+? explain;

2197

---

what is the difference between capacitive and resistive voltage divider?

3595

---

WHAT IS DIFFERENCE BETWEEN CAPACITOR AND CAPACITANCE?

2129

---

sir plz send some previous year questions of jspl.

1990

---

What if high voltage side circuit breaker of a ehv transformer instead of lvcb? Kindly elaborate.

1799

---

what is transient stability analysis means?

2192

---

How many wall/floor flange will i use in bus duct system if we have in our design a 35th floor building.

1545

---

gas turbine genrator reactances

2045

---

How many types of oil using in H/T & L/T Oil Circuit Breakers. need Explenation ?

2973

---

how to calculate the torque of a motor?

2179

---