公开(公告)号：US10366225B2

公开(公告)日：2019-07-30

申请号：US15307363

申请日：2015-03-24

Applicant: ABB SCHWEIZ AG

Inventor： Vishal Shah ,  Darshit Prajapati ,  Dinesh Vaghela ,  Nayan Shah

IPC: G06F21/46 ,  H02H1/00 ,  H02H3/00 ,  G06F1/28 ,  G06F21/00 ,  G06F21/31 ,  G06F21/30 ,  G01R19/25

Abstract: The invention relates to a method for allowing a configuration change of an Intelligent Electronic Device (IED) of a power system, wherein the configuration change affects an operation of the IED. The method comprises receiving a request at the IED for the configuration change, wherein the request comprises a configuration change signal. The configuration change signal is received at the IED in response to establishing a connection between an I/O module of the IED and a signalling component. The method further comprises verifying the request automatically by the IED, wherein verifying the request comprises detecting a predetermined signal pattern at the I/O module upon receiving the configuration change signal, wherein the predetermined signal pattern is stored in a memory associated with the IED. In addition, the method comprises enabling the configuration change in response to successful verification of the request by the IED.

公开(公告)号：US11276997B2

公开(公告)日：2022-03-15

申请号：US16513707

申请日：2019-07-17

Applicant: ABB Schweiz AG

Inventor： Darshit Prajapati ,  Dinesh V ,  Nayan Shah ,  Pravin Vadhiyar ,  Vijay Shah

IPC: H02H3/00 ,  H02H1/00 ,  G01R15/18 ,  H02H3/08

Abstract: The present disclosure relates to a method of integration and compensation in a protection relay. The method may include the protection relay: receiving a measured signal from a Rogowski coil and converting the measured signal to digitized samples, where the measured signal is a differentiated current signal over time; iteratively computing integrated current data from the digitized samples using a first digitized function to obtain integrated value; iteratively computing a compensated current data from the integrated current data using a second digitized function to remove a DC component in the integrated current data; evaluating the compensated current data to identify a fault condition; generating a trip signal on identification of a fault condition to operate a switch to electrically disconnect to protect the power equipment. The steps of integration and compensation may be performed in time window that is within the time period of the measured signal.

公开(公告)号：US20200059080A1

公开(公告)日：2020-02-20

申请号：US16513707

申请日：2019-07-17

Applicant: ABB Schweiz AG

Inventor： Darshit Prajapati ,  Dinesh V ,  Nayan Shah ,  Pravin Vadhiyar ,  Vijay Shah

IPC: H02H1/00 ,  G01R15/18

Abstract: The present disclosure relates to a method of integration and compensation in a protection relay. The method may include the protection relay: receiving a measured signal from a Rogowski coil and converting the measured signal to digitized samples, where the measured signal is a differentiated current signal over time; iteratively computing integrated current data from the digitized samples using a first digitized function to obtain integrated value; iteratively computing a compensated current data from the integrated current data using a second digitized function to remove a DC component in the integrated current data; evaluating the compensated current data to identify a fault condition; generating a trip signal on identification of a fault condition to operate a switch to electrically disconnect to protect the power equipment. The steps of integration and compensation may be performed in time window that is within the time period of the measured signal.