Answer / a.p.nanjappa

INSULATION FAILURE, LIQUID/WATER BEING EMPTY OVER
TEMPERATURE

What is the difference between expansion joints & thermal expansion joints in Bus bar

1 Answers  

---

how do the stepper motor works.

1 Answers   Vardhman,

---

To avoid arcing what we connect in earthing.

4 Answers   HAL,

---

What is the technical difference between IS:1554 and Indian Railway IRS:S63/2007

0 Answers   Indian Railways,

---

1.Whats the use of GNAC(Generator Neutral Accessory Compartment) 2. why generator or any other system require Neutral Grounding and not Phase grounding 3. what happens if any one of the phase is grounded. 4. if 15kv is grounded directly what will happen, why it should not be grounded like that 5. use of of NGTR(Neutral Grounding Transformer and Resistor) for grounding is helpfull and how

5 Answers   BEMCO, CSS, Powergear,

---

Why the Transformer Nuetral is grounded?

10 Answers   Infosys, Khartoum Refinery,

---

what is wave trap? please explain the working and principle

4 Answers  

---

how to find the starting current of the motor?

1 Answers   BOC,

---

What is the unit of charge and current?

0 Answers  

---

can we run all LT motors at 360 volts which are normally rated 415+/-10% voltage rating

2 Answers   Meinhardt,

---

what is wave traps and why it is been used in switchyards?

1 Answers   NHPC,

---

when i am going to take trail on a 3ph sq.i/m motor 5.5kw, i observed that RPM of the motor is very low as compared to the rated RPM and also it rotates in clockwise in first ON command,and anticlock wise in second ON command. finally i observed that on phase is no available . but iam not clear about, why the motor is rotates in both directions without any phase interchanging.pls answer to my question.

1 Answers  

---