Answer / rajesh

blowers for blowing cooled air inside train
fan for exhaust hot air
compressor ( dc /induction motor ) for cooling liquid
refrigerant to gas phase

pump for assisting flow if exhaust is above toilet at roof
ckt breaker , switch panel for control
temperature , pressure sensor
lead acid battery in case of express train
etc

How to calculate earth fault current for 6.6 KV , 50 HZ , 756 Amps , 3000 RPM , 0.8 PF generator

0 Answers  

---

i have a Connected Load of 280KW and Maximum Demand of 224KW to one of SMDB under design with me. which criteria should i consider to design panel and main cables connected Load or Maximum Demand 1)Breaker rating 2)Panel Busbar rating 2)Incommer cable sizing (ignore Voltage drop)

1 Answers  

---

EHV current carrying parts need to have smooth finish,then how can a 245kv GIS with emery finish can run so long?

0 Answers  

---

IN 3 PHASE INDUCTION MOTORS SOMETIMES COPPER BARS ARE PLACED DEEP IN ROTOR WHY..?

3 Answers   ONGC,

---

xfhnchncv?

0 Answers  

---

what is fault level of power system ?

2 Answers   Infosys,

---

what is the working principle of smoke detector in fire alarm system

2 Answers   Vijaya Bank,

---

what r Grid stations?what r there role.Explain in detail

1 Answers  

---

how to distinguish between ac motor and dc motor without seeing name plate of it.only seeing its getup look

3 Answers   Nahar, Siemens,

---

how many maximum nos of add on contact we shd provide on 4 no contactor

1 Answers   Accenture,

---

What is the frequency of dc current????

4 Answers   SCS,

---

PLZ SEND ME SOME UNIQUE PROJECT OF ELECTRICAL ENG (B.TECH)

0 Answers  

---