US 10,508,013 B2 · Method for cleaning an on-load top changer, and on-load tap changer

Abstract

In a method for cleaning an on-load tap changer (19) in a regulating transformer (20), provision is made for the on-load tap changer (19) to comprise a moving contact (11) and a fixed contact (12); for a cleaning signal to be generated; for the moving contact (11) to be frictionally moved relative to the fixed contact (12) on the basis of the cleaning signal. An on-load tap changer (19) in a regulating transformer (20) comprises: —a moving contact (11) and a fixed contact (12); —a contact drive (17) which is coupled to the moving contact (11); —a control device (18) which is connected to the contact drive (17) and is designed in such a manner that the control device can generate a cleaning signal and can transmit said signal to the contact drive (17); wherein the contact drive (17) is designed in such a manner that the contact drive can frictionally move the moving contact (11) relative to the fixed contact (12) on the basis of the cleaning signal.

Claims17

Dependent claims

A method of cleaning an on-load tap changer in a control transformer, where the on-load tap changer comprises a movable contact and a fixed contact, the method comprising the steps of sequentially:

generating a switching signal for actuating the on-load tap changer;
thereafter checking at least one cleaning parameter;
and
thereafter generating a cleaning signal as a function of the switching signal and in a manner depending on the result of the checking of the one cleaning parameter;
thereafter rubbing the movable contact against the fixed contact in a manner determined by the cleaning signal;
and
thereafter actuating the on-load tap changer as a function of the switching signal.

4 more elements

An on-load tap changer in a control transformer, the tap changer comprising

a movable contact and a fixed contact;
a contact drive coupled to the movable contact and so constructed that it can rub the movable contact against the fixed contact;
and
a controller connected with the contact drive and so constructed that it can
generate a switching signal for actuating the on-load tap changer,
thereafter, as a function of the switching signal check at least one cleaning parameter,
thereafter generate a cleaning signal in dependence on a result of the checking of the one cleaning parameter and transmit the generated cleaning signal to the contact drive,
thereafter rub the contacts together as a function of the cleaning signal, and
thereafter actuate the on-load tap changer as a function of the switching signal.

6 more elements

Dependencies are inferred from the claim text.

Method for cleaning an on-load top changer, and on-load tap changer

Life of this patent

Method for cleaning an on-load top changer, and on-load tap changer

Life of this patent

Abstract

Claims17