- - - ON-LOAD TAP CHANGER TAP-CHANGING TRANSFORMER FOR VOLTAGE REGULATION AND METHOD FOR IMPLEMENTING TAP CHANGING IN THE TAP-CHANGING TRANSFORMER

摘要

There is provided an on-load tap changer 10 for adjusting the voltage of a tap transformer 15 which has at least one phase 16 to be adjusted and the phase 16 comprises a first winding 20 and a second winding (30); The first winding 20 has a tuning winding 21 and a main winding 22 with an even number of winding tabs 23 and the second winding 30 has an odd numbered winding tab 33 Has a fixed winding (31) and a main winding (32); The first winding 20 and the second winding 30 having the adjusting windings 21 and 31 of the winding tabs 23 and 33 of the odd number and the odd number are inductively coupled; The on-load tap changer (10) has a selector (40) for alternating power preselection of the winding tabs (23, 33) of an odd number or odd number to be switched.