公开(公告)号：US09887530B2

公开(公告)日：2018-02-06

申请号：US14730785

申请日：2015-06-04

Applicant: ABB RESEARCH LTD

Inventor： Hariram Satheesh ,  Bernhard Deck ,  GN Krishnamoorthy ,  Mallikarjun Kande ,  Sanjeev Koul ,  Naman Raval ,  Nayan Shah ,  Vishal H. Shah

IPC: H02H1/00 ,  H02H1/06 ,  H02H3/05 ,  H02H3/093 ,  H02H3/10

CPC classification number: H02H1/063 ,  H02H3/05 ,  H02H3/093 ,  H02H3/105

Abstract: A protection relay is disclosed that generates a trip signal to operate a circuit breaker in case of a fault condition. A first module provides measurement and analysis of power parameters of the power line connecting the power equipment that is being protected, the protection being provided by generating a first trip signal for operating a circuit breaker connected in the power line. One or more second modules can boost performance of the protection relay by measurement and analysis of power parameters-to generate a second trip signal for operating a circuit breaker connected in the power line. The first trip signal and the second trip signal are logically combined to generate a trip signal that operates the circuit breaker.