摘要:
A circuit testing closer is capable of closing a power distribution circuit and interrupting the resulting current at the next current zero. Upon detecting a fault, the circuit testing closer is operable to open contacts to isolate the fault. Next, the circuit testing closer tests the faulted line to determine whether the fault has cleared. The circuit testing closer may employ one or more dynamic thresholds to determine the existence of a fault.
摘要:
A system and method for improving operation of power systems using global filtering criteria across multiple reports or dashboards is provided herein. The system and method may receive data regarding electric power system components, along with a filter selection from a power system operator. The operator' s filter selection is applied to the received data, and a first summary is generated. Upon receiving a request to generate a second summary, the system and method apply the filters to the received data to generate a second summary without requiring additional filter selection. The power system operator may then use the generated data in operating the power system.
摘要:
A system for automated reconfiguration of a power distribution system, comprising a plurality of nodes being located in the distribution system; a plurality of node controllers controlling respective nodes in the plurality of nodes and including resources which monitor the distribution system, which source, permit or inhibit flow of power in the distribution system in response to detection of a condition requiring reconfiguration of the distribution system, which communicate information with at least one other node controller in the plurality of node controllers to transmit and receive communicated information; which affect the state of the associated node to source, permit or inhibit flow of commodity in accordance with one of a first operating mode and a second operating mode. The first operating mode being a primary operating mode and comprising a rapid restoration mode wherein a first node is operable to query the communicated information to identify at least one resource that is operable to affect optimal service restoration based on a minimal switching operation.
摘要:
A power distribution protection system comprising: a source (102) coupled to a load by a distribution line (104), the distribution line being segmented by a plurality of fault protection devices (106, 108), the fault protection devices of each segment (114) forming a team; each of the source and the plurality of fault protection devices including a communication device (602) permitting transmission or reception of a signaling message, and each of the source and the plurality of fault protection devices being operable to monitor the prevailing radio environment in the system to verify a communication response time, and to monitor the current in the system to detect an abnormal current, wherein, upon detection of an abnormal current, each of the source and plurality of fault protection devices detecting the abnormal current is operable to communicate a signaling message to at least one other member of its respective team, and wherein each of the plurality of fault protection devices receiving a signaling message is operable to adjust a fault protection characteristic by delaying operation for a configured delay time, only if the communication response time is not exceeding the configured delay time, such that the one of the source and the plurality of fault protection devices nearest to the fault on the distribution line operates to isolate the fault from the remainder of the distribution line.
摘要:
A method to determine the end-of-life of a vacuum interrupter, the method comprising for each fault current detected, monitoring at least one parameter associated with the fault current to be interrupted or an operation of the vacuum interrupter to interrupt the fault current; using the at least one parameter to determine a single operation percent life consumed value for the vacuum interrupter, the single operation percent life consumed value being associated with interrupting the fault current; determining a cumulative percent life consumed for the vacuum interrupter, the cumulative percent life consumed being an accumulation of each of the single operation percent life consumed values corresponding to each of the detected fault currents.