I have a drawing of a wound rotor induction motor for a crane. This crane motor has 5 forward speeds & 5 reverse speed implemented of course with different amount of resistance for each speed setting selected. What has got me scratching around is the fact that 8 of the 10 speed selections switch in uneven (unbalanced) amounts of resistances on each of the 3 connections to the motor's rotor.Can this be possible? I would have assumed this would produce unbalanced rotor currents and therefore vibration in the motor. I would greatly appreciate anyone's comments on this. Many thanks, Confused.

0 Answers  

---

Frequency of rotor emf in induction motor is around A same as stator frequency B 50% C 5 % or below D 30%

1 Answers  

---

Why electric sock occur to human or any lives ?

2 Answers  

---

What will happen if we on 200kvr capacitor bank(11kv in bus)If there is low load on transformer (1.5 mva 33/11 kv)

0 Answers  

---

is it possible to test of bus bar in high rise building without completed full floor ?

0 Answers  

---

There is any especial requirement for motor to drive through with VFD?

0 Answers  

---

What is the function of earthfault relay?

18 Answers   MultiTech, Tech Mahindra,

---

"TRANSFORMER MODELING AND ANALYSIS" MEANS WHAT AND WHICH TOPICS U READ IN THIS

0 Answers  

---

every motors written in name plate IP 55 what is this?

2 Answers  

---

how to find the transformer effiiency

3 Answers   Bosch,

---

How to measure the capacity/rating of a distribution transformer in KVA?

0 Answers  

---

how to calculate the KVAr for an motor for improving the PF

3 Answers  

---