Directional overcurrent monitoring in substation transformers
AssigneeOneSubsea IP UK Limited
InventorsAudun Magne Askeland, Kristiansen Baricuatro
Life of this patent
Estimating the term…
Abstract
The present disclosure provides techniques and apparatus for fault monitoring for a substation transformer. An example substation includes a transformer coupled to a plurality of generators, and a monitoring circuit. The transformer includes a core and a monitoring winding disposed on the core. The monitoring circuit is coupled to the monitoring winding. The monitoring circuit is configured to measure a first single-phase voltage of the transformer via the first monitoring winding. The monitoring circuit is also configured to monitor for one or more faults that affect the substation based at least in part on the first single-phase voltage.
Claims20
A substation comprising:
- a transformer coupled to a plurality of generators and comprising:
- a core;
- and
- a first monitoring winding disposed on the core;
- and
- a monitoring circuit coupled to the first monitoring winding and configured to:
- measure a first single-phase voltage of the transformer via the first monitoring winding;
- and
- monitor for one or more faults that affect the substation based at least in part on the first single-phase voltage.
A system comprising:
- a plurality of generators;
- and
- a substation coupled to the plurality of generators and comprising:
- a transformer comprising:
- a core;
- and
- a first monitoring winding disposed on the core;
- and
- a monitoring circuit coupled to the first monitoring winding and configured to:
- measure a first single-phase voltage of the transformer via the first monitoring winding;
- and
- monitor for one or more faults within the system based at least in part on the first single-phase voltage.
A method for fault monitoring in a system comprising a substation and a plurality of generators coupled to the substation, the method comprising:
- measuring a single-phase voltage of a transformer of the substation via a monitoring winding, wherein the transformer comprises a core and the monitoring winding and wherein the monitoring winding is disposed on the core;
- and
- monitoring for one or more faults within the system based at least in part on the single-phase voltage.
Dependencies are inferred from the claim text.