SWITCHING CIRCUIT WITH TWO LOAD TAP CHANGERS, ELECTRICAL ASSEMBLY WITH SUCH A SWITCHING CIRCUIT, AND USE THEREOF

• Main Authors: SHEN Dazhong, BAEUML Gerhard, SHEIKO Stanislav, SPAETH Matthias
• Format: Patent
• Language: English
• Published: 01.06.2017
• Subjects: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; BASIC ELECTRIC ELEMENTS; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROL OR REGULATION THEREOF; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC SWITCHES; ELECTRICITY; EMERGENCY PROTECTIVE DEVICES; GENERATION; INDUCTANCES; MAGNETS; RELAYS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; SELECTORS; TRANSFORMERS

A switching arrangement (15) for an electric system (10) that includes a first and a second tapped winding (11, 13) comprises: - a first on-load tap changer (16) that includes a first discharge terminal (161) and three first switching terminals (162), at least two of which can be connected to associated first taps (12) of the first tapped winding (11); - a second on-load tap changer (17) that includes a first discharge terminal (171) and three second switching terminals (172), at least two of which can be connected to associated second taps (14) of the second tapped winding (13); - the second discharge terminal (171) is connected to the first discharge terminal (161) or to a first switching terminal (162") that is not associated with a first tap (12).