Answer / imrul

Salient-pole rotors are used in low-speed synchronous
generators such as those driven by water wheels. They are
also used in synchronous motors. Because of their low speeds
salient-pole generators require a large number of poles as,
for example, 60 poles for a 100-rpm
50 Hz generator.

Answer / s

1.we that the example of cycle wheel . cycle wheel are made of
lot of rods due this when we stop the cycle cycle runs few
distance but if wheel of cycle made of complete disc it cnnt
move after stop the cycle .just like in case of salint &non
salient rotor.
2. damper winding(it is the AL rods which is mount in pole
face of rotor.

the parts of transformers ?

1 Answers   Bhel, Facility management,

---

What is principal to reduce earth leakage current with isolation transformer? When isolation transformer is installed in input stage of system, earth leakage current is reduced. the reason is why the leakage current of 2nd stage of isolation transformer does not affect the 1st stage's leakage current. I would like to know the reason. As you know, earth leakage current is a kind of AC. So, How to reduce earth leakage current in case that isolation transformer is used?

2 Answers  

---

What is CCTV System???Applications........

16 Answers   Emerson, Honeywell, Joyalukkas,

---

why high current produce in case of transformer when turns are internally gets shorted.

3 Answers   TCS,

---

What are the types of piano switches?

0 Answers  

---

why current increases when voltage decreases in ac system

10 Answers  

---

Maximum efficiency occurs in electrical machines is at i)Full load,ii)50% of full load,iii)Near full load,iv)None of these

1 Answers   IFFCO,

---

what is the criteria for selection of conductor used for ehv ac electrical dischrge

0 Answers   National Productivity Council,

---

Please help me regarding my one concern. - During earth pit testing we noticed that the Clean earth pit and dirty earth pit showing continuity (Resistance value - 5ohm) . I want to know that if both earth pit have separate location and there is not internal looping between PIT then why such continuity is showing on it . Because of this issue the field side all earthing point showing short. In PLC panel we are providing two types of earthing cable which is coming from separate earth pit (Clean and Dirty earth pit) because of earth PIT showing short our PLC is not complying spec . please help regarding this issues.

0 Answers  

---

What is the importance of setting TSM & PSM?

2 Answers  

---

effect of decrease in excitation?

2 Answers  

---

Meaning of ingrace protection for motor.for ex IPXY

0 Answers   BARC,

---