General Electric Company

Clive Dias

Marzio Paride Pozzuoli

Guang Zeng

Roger Moore

A connection assembly for facilitating connection between a terminal block and a module containing protective relay circuitry. The assembly includes a keycode plate molded to align with and fit over terminal block connection elements extending through openings provided in the keycode plate. The assembly also includes one or more keycode elements fitting into keycode element reception areas provided in the keycode plate, and a module cover having pre-existing slots located and dimensioned so as to align with and receive corresponding keycode elements. The assembly substantially ensures that the correct module is connected to a correct terminal block and substantially prevents an incorrect module from being connected to an incorrect terminal block.

Keycode connection arrangement between a processing module and a terminal block

A protective relay having internal processing circuitry embodied by removable and replaceable modules. Each module includes a main circuit board having common circuitry and also includes removable and replaceable submodules which electrically connect with the main circuit board to perform specific functions. The protective relay can have its functions altered by replacing one or more modules or submodules.

Modular protective relay with submodules

A modular control panel for a protective relay. The control panel is removably attached to the housing of the protective relay, and the control panel has a frame which can be arranged to receive a plurality of independently replaceable control panel modules in either a horizontal or vertical orientation. The control panel can be removed from the protective relay housing and remotely mounted, while remaining operatively connected to the protective relay.

Protective relay with modular control panel

A modular terminal block for connection between an electrical distribution system and the processing circuitry of a protective relay. The terminal block includes multiple separable tiers, each which is provided with a set of terminal connections and signal contacts. The tiers are of different lengths such that each set of terminal connections are located at different distances from the protective relay to improve accessibility. The terminal block can be mounted in different orientations, and allow shorting between any two adjacent terminal connections.

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Pickering, Canada

Clive Dias