Fault detection and signaling system
AssigneeArteche, Instrumentacion y Sistemas Electronicos, S.A.
InventorsJuan Jose Zubeldia Peral, Jose Luis Gomex Llona
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Abstract
A fault detection and signaling system is responsive to a fault detection to generate a first type of warning signal indicative of fault detection and includes means operable to indicate that a fault is "acknowledged" and for causing the generation of a second type of warning signal if the fault still exists and to cause ceasing of generation of the first type of warning signal if the fault no longer exists. Further provided is means responsive to fault detection by another fault detection and signaling system for causing generation of a third type of warning signal when a fault is indicated by the present system subsequent to a fault detection by another system.
Claims16
A multiple fault detection and signaling system for monitoring an electrical apparatus, comprising:
- sensing means (3,4,5,8) coupled to said monitored electrical apparatus, said sensing means sensing a first fault in the monitored electrical apparatus and generating a detection signal corresponding to said sensing of said first fault;
- signaling means (10,22,20,21,19,23) including a fault memory means (10) and a single warning signaling element (26), said signaling means including means responsive to said detection signal for energizing said single warning signaling element to generate a first type of warning signal which indicates said sensing of said first fault;
- memory means (11) coupled to said signaling means, said memory means (11) being responsive to said generation of said detection signal for storing an indication of said sensing of said first fault;
- means (17) coupled to said memory means (11) and including:
- means operable for indicating that said first fault is "acknowledged";
- and means for causing said signaling means to energize said single warning signaling element (26) to (i) generate a second type of warning signal, distinguishable from said first type of warning signal, if said first fault still exists and (ii) to cease generation of said first type of warning signal if said first fault no longer exists;
- and
- a fault memory means (13) operable to store a signal indicating a second fault sensed by another fault detection and signaling system, and operatively coupled to said signaling means;
- said signaling means including means responsive to said second fault indicating signal stored in said fault memory means (13) to energize said single warning signaling element (26) to generate a third type of warning signal, distinguishable from said first and second type warning signals, when said first fault is sensed by said sensing means (3,4,5,8) subsequent to said sensing of said second fault by said another fault detection and signaling system.
Dependencies are inferred from the claim text.