Sposób i układ do zmniejszania błędów przekładników prądowych poprzez domagnesowanie rdzenia - Invention - MOST Wiedzy

Search

Sposób i układ do zmniejszania błędów przekładników prądowych poprzez domagnesowanie rdzenia

Invention

Description

Current transformers are electric devices which enable measurements of high current intensity with meters characterised by lower measuring ranges. Current transformers are usually used in combination with other measuring devices (e.g. ammeters). Therefore, it is substantial that the transformation errors of current transformers stay within the appropriate range, to retain the proper measurement accuracy, e.g. with the use of the transformer-meter set. The errors which occur during the device's operation have so far been corrected by applying various methods, such as adjusting the number of turns, shunting the winding with a capacitor or by applying various methods of core magnetization. The existing magnetization methods provide low performance stability, or limited possibilities of application in industry. The invention reduces current transformer errors by magnetising the core without the aforementioned inconveniences.

Market applications and customers

Manufacturers of current transformers

Innovative aspects and main features

Due to applying a high differential amplification, transformer errors can be significantly reduced within the entire operating range.

Details

Creators
Property
Politechnika Gdańska
Supervisor unit

Legal protection 226875

Status
Expired
Patent granting institution
Urząd Patentowy Rzeczpospolitej Polskiej
Application number
P.405867 31-10-2013
Patent number
226875
Verified by:
Gdańsk University of Technology

seen 107 times