transformer winding उदाहरण वाक्य
उदाहरण वाक्य
- 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.
- 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.
- 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.
- 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.