tap changer What is a Load Tap Changer (LTC)? By electrical-engineering-portal.com Published On :: Mon, 04 Nov 2024 06:21:30 +0000 We all experienced the ocasional flickering of the house lights during evenings. This usually indicates a load tap changer (LTC) adjustment, or a sign that the bulb is about to drop dead, but that’s not the subject of this article... Read more The post What is a Load Tap Changer (LTC)? appeared first on EEP - Electrical Engineering Portal. Full Article Power Substation Protection Transformers arcing switches bias winding changeover switch circulating current load tap changer ltc ltc regulation operations sequence resistive switching reversing switch selector switch tap changers tapped winding transformer transformer tank
tap changer Tap changer and vacuum interrupter for such a tap changer By www.freepatentsonline.com Published On :: Tue, 03 Feb 2015 08:00:00 EST The invention relates to a tap changer for the interruption-free switchover between winding taps of a tap-changing transformer. Furthermore, the present invention relates to a novel vacuum interrupter which is particularly suitable for such a tap changer. The tap changer according to the invention is based on the general concept of combining in each case one main contact (V1) and one mechanical switching means (U1), connected in series therewith, of a first load branch and an additional resistive contact (V3) of a second load branch in only a single vacuum interrupter (1) with a common housing (5). The vacuum interrupter (1) according to the invention is furthermore based on the general inventive concept of replacing the functionalities of two required vacuum interrupters in accordance with the prior art and an additional mechanical switching means with a single vacuum interrupter (1) according to the invention by virtue of combining the design of a vacuum interrupter (1) with a plurality of moveable contact systems (I, II, III), which are arranged in separate vacuum interrupter chambers (2, 3, 4) which are sealed with respect to one another. Full Article