Answer / pradeep jangid

First of all we check for supply is proper than Starter
after this Check circuit is open or not than check some
fault(Mechenical or Electrical)occured in Motor.

Answer / u.v.v.satyanarayana

first of all cheak if any opencircuit occure than chek
stator wdg are shortcircuit

Hello friends., my question is related to testing of current transformer... A Ct having knee point voltage of 750 volts., and I have two step up transformer's of rating 230 v to 440 volts., can I obtain the value of 750 volts by using the two transformer's.... If yes then how could I connect the transformer's to obtain knee point voltage?? thank you in advance

1 Answers   ABB,

---

Why (In India) we preferably go for +-30 deg connection of transformer? what are the advantages in this connection?

2 Answers  

---

Greeting to all members, How to calculate spill current when we have different ratio CT and Class for REF(Low Imp) I have 500/1A 5P20 @line side n 400/1A CL.X @ Neutral.

0 Answers   DEWA,

---

what is the use of static frequency converter and static excitation equipment? and where it is employed? for what?

0 Answers   Toshiba,

---

What is the difference between earth and neutral

3 Answers  

---

---

Draw transformer phasor diagram.(full load,no load)

0 Answers   PowerTech, Trine,

---

how many joints are allowed in underground HT cable of 1 KM

0 Answers  

---

A separately excited dc motor having 2 ohm armature resistsance draws a current of 10A and torque developed is 20 Nm under rated field condtion. the speed of the motor under the rated field condtion , when it is connected to a 100V DC source and delivering 10Nm torque....

2 Answers   DRDO,

---

What is the similarity and what is the difference between relays and PLC?

3 Answers   NTPC,

---

what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker

1 Answers   Siemens,

---

Does the dg syncronization sucessful in practical.

2 Answers  

---

suppose we using 3 phase motor of 440 v means what range of C.T. is require for measuring current ?

9 Answers  

---