公开(公告)号：US11125821B2

公开(公告)日：2021-09-21

申请号：US16835450

申请日：2020-03-31

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Edmund O. Schweitzer, III ,  David E. Whitehead ,  Tony J. Lee ,  David J. Casebolt ,  Krishnanjan Gubba Ravikumar ,  David Schmidt ,  Austin Edward Wade

IPC: G01R31/327 ,  H01H47/00 ,  H02H1/00

Abstract: Systems and methods for testing a protection relay, such as a primary bus protection relay, may include a testing device for providing current signals imitating current on both sides of a bus to the primary bus protection relay. The signals may be provided using signals corresponding with a signal format from merging units or other monitoring devices. The testing device may be configured to receive communications from the primary bus protection relay for evaluation of the operation of the primary bus protection relay.

公开(公告)号：US20210109156A1

公开(公告)日：2021-04-15

申请号：US16835450

申请日：2020-03-31

Applicant: Schweitzer Engineering Laboratories, Inc.

Inventor： Edmund O. Schweitzer, III ,  David E. Whitehead ,  Tony J. Lee ,  David J. Casebolt ,  Krishnanjan Gubba Ravikumar ,  David Schmidt ,  Austin Edward Wade

IPC: G01R31/327 ,  H01H47/00 ,  H02H1/00

Abstract: Systems and methods for testing a protection relay, such as a primary bus protection relay, may include a testing device for providing current signals imitating current on both sides of a bus to the primary bus protection relay. The signals may be provided using signals corresponding with a signal format from merging units or other monitoring devices. The testing device may be configured to receive communications from the primary bus protection relay for evaluation of the operation of the primary bus protection relay.