The tap selection on any tap changer may be made via an automatic system, as is often the case for OLTC, or a manual tap changer, which is more common for NLTC . Additionally, tap changers are often placed on the high voltage ( low current ) transformer winding for easy access and to minimize the current load during operation.
32.
Trouble comes quickly to such a scheme when there is more than one neutral or ground connection in the system, or when the DC voltage is applied directly across a transformer winding, which has AC reactance but little DC resistance to limit current flow, or when AC is applied directly across a capacitor which opposes DC flow but little reactance to AC flow.
33.
The resulting asymmetry in the traction heads is used for maximising the capacity of the head end power, which supplies on-board electric equipment and measuring devices : while six of the eight windings of the main transformer on the first traction head supply traction converters and two supply a 0.7 MW auxiliary converter for 670 V DC head end power, in the second traction head, traction converters need only four main transformer windings and the other four windings supply a 1.4 MW auxiliary converter.
34.
The traction motors are asynchronous induction motors like those of the HSR-350x, rather than synchronous motors as on the KTX-I . rather than the originally foreseen Each traction converter consists of two parallel-switched four-quadrant converters, which function as rectifier modules by converting single-phase alternating current ( AC ) from one main transformer winding each to direct current ( DC ), a 2, 800 V DC intermediate circuit, and one inverter module converting the DC supply to the three-phase AC supply for traction motors.
How to say transformer winding in Hindi and what is the meaning of transformer winding in Hindi? transformer winding Hindi meaning, translation, pronunciation, synonyms and example sentences are provided by Hindlish.com.
