Answer / sheik farvat

one end of capacitor wire is connected to phase and another of the capacitor wire is connected to the neutral,then remove from the socket and touch the capacitor two wire (phase and neutral )if spark is coming is good or otherwise is bad

Answer / harishdarade563

Firstly check out the rating of capacitor you want to check.According to voltage rating given on capacitor, apply the voltage to its two terminals(Note :Do not apply the voltage more than rating voltage,otherwise it will make a short circuit,less voltage can be applied) and then short those terminals.if spark between terminals is observed it is good otherwise it is bad.

Answer / l.chandrasekharareddy

How to the calculate kw in vfd motor

Answer / k.prakashchandra

Do not give supply directly but through a bulb. It may be shorted or you may exceed the rated voltage . If the capacitor is good the brightness will be less and you can also test for stored energy

what is the formula of knowing the clabe size on any load?

1 Answers   JSW, Scan Steel,

---

how CBCT works?

1 Answers  

---

to calculate voltage drop of cable which current we consider that means full load current or panel size?

2 Answers  

---

how nautral is provided for return path is 3 phase induction motor

0 Answers   SNGPL,

---

what is meant by reactive power ,active power & real power ? thank you

2 Answers  

---

how can we say that stator magnetic field rotates with synchronous speed?can we derive?

0 Answers  

---

1.what is meaning of curve into a mcb. 2.what is basic reason changing of curve

0 Answers  

---

why voltage is low at reciving end in summer??

4 Answers   JSW,

---

some practicle study shows that the reactive power at the receiving end is not equal to the reactive power at the sending end.But according to theory the reactive power is exchanged by different parts of the network – capacitors and reactors permanently, but is never consumed or produced. Then Where that reacrtive power loss occuring?is there any formula to calculate reactive power loss?

3 Answers  

---

why we are used D.c. voltage in L.T.side or controling side.we can use UPS also ,in place d.c. voltage

5 Answers   ABB,

---

Why the brushes used in dc machines are made of carbon not from other metal?

3 Answers  

---

why the colour of insultor stack , petticoat is brown. Is it has some technical reason.

0 Answers  

---