US 2026/0095048 A1 · BACKUP SPLICE FOR ISLANDING

Abstract

In one implementation of a backup splice for anti-islanding, a system includes a wire cutter that severs an electrical wire (e.g., a main service line within a main electrical panel) within a microgrid of a residential unit, commercial unit, or other electrical system from the power grid. The system also includes multiple splices to provide an electrical connection on the electrical wire on each side of the wire cutter. A relay is configured to close to enable or complete the electrical connection along the electrical wire and open to disconnect one or more distributed energy resources (DERs) (e.g., a battery or solar panels) from the power grid. The system further includes a controller that opens the relay in response to detecting a power outage in the power grid, thereby preventing the islanding of the microgrid or the DER.

Claims20

Dependent claims

An apparatus comprising:

a lineside terminal and a load-side terminal electrically connected to an electrical wire via corresponding tap connections, the electrical wire including an interruption between the corresponding tap connections and being electrically connected to a power grid via an electrical meter;
and
a relay configured to close to enable the electrical connection on the electrical wire and open to disconnect one or more distributed energy resources (DERs) from the power grid in response to detecting a power outage in the power grid.

Dependencies are inferred from the claim text.

Backup splice for islanding

Life of this patent

Backup splice for islanding

Life of this patent

Abstract

Claims20