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AssigneeHitachi Energy Ltd
InventorsRahul GORE, Jianping WANG, Mohsen TAJDINIAN, Md Tanbhir HOQ
Estimating the term…
This disclosure relates to a protection assisting device configured to communicatively connect to a first protection system at a first substation and a second protection system at a second substation, the first and second substations electrically connected to a power line, the first and second protection systems communicatively connected via a primary communication network, said first and second protection systems cooperating to provide differential protection via respective first and second protection relays based on a power line measurement of the power line at the first substation and a power line measurement of the power line at the second substation. The protection assisting device is configured to provide protection assisting information to the first and second protection relays based on predetermined protection assistance condition(s) determined from operational data received from the first and second protection systems via a secondary communication network, which secondary communication network is a non-dedicated communication network.
A protection assisting device configured to communicatively connect to a first protection system at a first substation of an electrical power network and a second protection system at a second substation of the electrical power network, the first substation and the second substation electrically connected to a power line, the first protection system and the second protection system communicatively connected via a primary communication network, said first protection system and said second protection system cooperating to provide differential protection via a respective first protection relay and a second protection relay based at least on a first power line measurement of the power line at the first substation and a second power line measurement of the power line at the second substation, the protection assisting device configured to:
A method of providing protection assistance to a first protection system at a first substation of an electrical power network and a second protection system at a second substation of the electrical power network, the first substation and the second substation electrically connected to a power line, the first protection system and the second protection system communicatively connected via a primary communication network, said first protection system and said second protection system cooperating to provide differential protection via a respective first protection relay and a second protection relay based at least on a first power line measurement of the power line at the first substation and a second power line measurement of the power line at the second substation, the method comprising:
Dependencies are inferred from the claim text.