how does electrical train works and what type of motors are
used to drive the train?
which level of supply voltage is used?
Answer Posted / bhanu
Electric train runs by using either DC Series Motor or 3-
phase Induction motor
the train receives 25kv voltage, transformer in it steps
down the voltage to 600v ac and then converted to dc for dc
series motor and 750v ac for induction motors.
Is This Answer Correct ? | 31 Yes | 20 No |
Post New Answer View All Answers
I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?
What is the difference between isolators and electrical circuit breakers?
In convertor can we use rectifier thyristor in place of invertor thyristor with explain.
What is the name of the winding to which supply is given?
What is the working principle of servo motor? And explain it.
WHAT IS MEANT BY TV TERMINAL IN 500MVA TRANSFORMER?
Is there any guideline say about display of earthing value near to earth pit
what is mean by descripiency relay? & wht is its ansi code?
The screw thread commonly used for transmission of motion is one of the following types of threads
why the colour of insultor stack , petticoat is brown. Is it has some technical reason.
what is the cause of voltage dipp or swell in the transmission lines?
True or false question. 1.The fuse provide phase and neutral 2.power loss in electrical circuit can take place in (resistance or inductance or capacitance). 3.two phase system each phase has separated by a phase difference of (90 or 180 or 270 or 45). 4.3 phase balanced star connected load neutral current shall be (line current or phase current or zero or unity)
Draw a block diagramof Three UPS systems connected in Parallel mode?
What is the importance of counter based plan & how is it scheduled?
is there any device that works properly accept relay, it may be fuse but if i want fuse of 33kv 300 amp it is avaliable, pls give me details