Answer Posted / rohith sathees
Traditionally, these are DC series-wound motors, usually
running on approximately 600 volts. The availability of
high-powered semiconductors (such as thyristors and the
IGBT) has now made practical the use of much simpler,
higher-reliability AC induction motors known as
asynchronous traction motors.
source: wikipedia
| Is This Answer Correct ? | 10 Yes | 0 No |
Post New Answer View All Answers
A motor running with lenze frequiency inverter stops if I REDUCE SPEED with 25% load.If I run it in High speed and medium speed running smoothly with full load.please help me to solve it.
Dear Respected sir how to test ABB REX521 protection relay by relay tester.
Please explain the following and how these are working with PLC unit 1.I/O Module 2.I/O Device 3.Adaptor Card 4.Ribbon Adaptor 5.RS 485-FC
what is parellel power factor correction?
lenz law application and define
WHAT IS THE FORMULA FOR CALCULATING CURRENT RATING(DIRECT IN GROUND OR AIR) OF ARMOURED(XLPE) CABLE OF 4C,16Sqmm?
What is the formula formula for Busbar sizing and what are the things to be consider for Busbar Calculation?
i have a 1500kVA transformer what is the kWH meter i need to use?
How does an oscillator differ from an amplifier?
A system absorbs 100 k J of heat and the increase in its internal energy is 100 kJ; the work done is
Hi all I had applied for the RRB test in the ELECRICAL category. I would be pleased if any of you can sent me previous year question papers. Please forward the question papers to varshashahi@yahoo.com Thanks and regards Varsha
Explain Active power,reactive power,how its related to each other , & inductive ,capacitive.
What do you mean by cogeneration? What its working principle?
If symmetrical fault occurs at the terminal of a synchronous motor then how the motor will act...explain it..
why the check zone and main zone are used for Busbar Protn. scheem?