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A Protection Method For An Electrical Distribution System

Abstract: The present disclosure relates to a method for protecting an electrical distribution system comprising an electrical grid being electrically coupled to an electrical branch, the electrical branch comprising a plurality of switches for connecting or disconnecting the electrical branch at respective positions on the electrical branch, wherein a load is electrically coupled to a node on the electrical branch. The method comprises: detecting a fault occurrence on the electrical branch based on a monitored voltage and/or current of the electrical branch; limiting, based on the detecting a fault occurrence, a power flow from the node to the load; adjusting, based on the detecting a fault occurrence, a voltage and/or current on the electrical branch; determining a fault location based on the adjusted voltage and/or current on the electrical branch; and disconnecting a portion of the electrical distribution system based on the determined fault location. The present disclosure also relates to a respective controller and system.

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
25 September 2025
Publication Number
44/2025
Publication Type
INA
Invention Field
ELECTRICAL
Status
Email
Parent Application

Applicants

HITACHI ENERGY LTD
Brown-Boveri-Strasse 5 8050 Zürich

Inventors

1. YUAN, ChunMing
Room 1402, Building 6, Guangqumenneidajie, Dongcheng District Beijing 100062
2. SIEMASZKO, Daniel
Rue du Collège 4 1450 Ste-Croix
3. IGLESIAS, Javier
C/Julian Camarillo, 29C 28037 Madrid

Specification

Documents

Application Documents

# Name Date
1 202547092076-STATEMENT OF UNDERTAKING (FORM 3) [25-09-2025(online)].pdf 2025-09-25
2 202547092076-REQUEST FOR EXAMINATION (FORM-18) [25-09-2025(online)].pdf 2025-09-25
3 202547092076-PROOF OF RIGHT [25-09-2025(online)].pdf 2025-09-25
4 202547092076-PRIORITY DOCUMENTS [25-09-2025(online)].pdf 2025-09-25
5 202547092076-FORM 18 [25-09-2025(online)].pdf 2025-09-25
6 202547092076-FORM 1 [25-09-2025(online)].pdf 2025-09-25
7 202547092076-DRAWINGS [25-09-2025(online)].pdf 2025-09-25
8 202547092076-DECLARATION OF INVENTORSHIP (FORM 5) [25-09-2025(online)].pdf 2025-09-25
9 202547092076-COMPLETE SPECIFICATION [25-09-2025(online)].pdf 2025-09-25
10 202547092076-FORM-26 [26-09-2025(online)].pdf 2025-09-26
11 202547092076-Proof of Right [27-09-2025(online)].pdf 2025-09-27