What is the difference between Ac curent & DC current

2 Answers   Juniper Networks,

---

hi every body i am master student in control engineering and my project is slip control in trains i assumed a Dc motore as traction motor but i don't have characteristics of this kind of motor that is used in train. i want from every body if he or she has the characteristics or information about Dc motor that is used in train give me those information or technical characteristics .

0 Answers  

---

what is the safe meggar values for motor, transformer HT, LT and Cables? IF we want to replace I/C bay at our 220 kv substation which is of 140 mw load capacity bay to be replaced by 400 mw capacity bay.other than CT(1200/1) what are the other equipment i have to replace. why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero

0 Answers   Jindal,

---

The neutral to earth connection in my industry is showing a zero reading (shorted). I have a machine which has to be installed where neutral to earth is not shorted and shows a leak voltage <3 Volts. Please suggest me how it is possible.

6 Answers  

---

What are the protections used in a HT breaker to protect the HT motors.

2 Answers  

---

what is the difference between diode and zener diode?

4 Answers  

---

why the autotransformer burnt while stating the pumpmotor?, In starter and motor there was no abnormality.

4 Answers  

---

what is the difference between online & offline caliberation of KWH meters. Can Digital meters be caliberated

0 Answers  

---

for compensate 315mh inductance ,how many capaciance required?

0 Answers   Mitsubishi,

---

if we convert ampers into kw,which one formula use by us,pls tell me?

11 Answers   ABB,

---

why battery is connected in parallel ?

7 Answers  

---

at what base you will tell the direction of rotation of dc motors and generators?

0 Answers  

---