Current measuring device
AssigneesConsolidated Edison Company of New York, Inc., Softstuf, Inc.
InventorsSanjay Bose, Anthony T. Giuliante, Amir Makki
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Abstract
A current sensor is provided for non-invasively measuring electrical current in an electrical conductor. The current sensor includes a housing having a Hall effect sensor and circuitry for transmitting a signal indicative of the current flowing through the electrical conductor. The current sensor further includes a clamp that allows an operator to easily and repeatedly install and remove the current sensor from electrical conductors. The current sensor may also include a mu-metal device for shielding the Hall effect sensor for stray magnetic fields generated by adjacent electrical conductors.
Claims20
A current measuring device comprising:
- a base having a generally hollow interior portion;
- a cover coupled to said base;
- an arm coupled to said cover;
- a clamp coupled to said arm, said clamp having a first semi-circular recess on one side of said arm and a lever portion on a side of said clamp opposite said first semi-circular recess;
- a semi-circular mu-metal member coupled to said first semi-circular recess;
- and,
- a Hall effect sensor coupled to said base adjacent said first semi-circular recess.
A removable current sensor comprising:
- a housing;
- a clamp coupled to said housing, said clamp having a locking portion on one end and a lever arm on an opposite end, said clamp being rotatable between a first position wherein said locking portion is in contact with said housing, and a second position;
- a Hall effect sensor having a first end mounted to said housing, said Hall effect sensor further having a second end positioned adjacent said clamp locking portion;
- and,
- a biasing member coupled between said housing and said lever arm, said biasing member being arranged to rotate said clamp locking portion towards said Hall effect sensor.
A current sensor for measuring electrical current flow through an electrical conductor, said current sensor comprising:
- a clamp member, said clamp member having a lever arm on one end and a first recess on an opposite end, said first recess being sized to receive said electrical conductor;
- a pivot arm rotatably coupled to said clamp member between said lever arm and said recess;
- a housing coupled to said pivot arm, said housing having a hollow interior portion and an opening adjacent said first recess;
- a Hall effect sensor positioned within said opening and mounted on one end to said housing within said hollow interior;
- and,
- a mu-metal insert coupled to said first recess, said mu-metal insert being sized to receive said electrical conductor.
Dependencies are inferred from the claim text.