AUTOMATIC TRANSFER SWITCH DEVICE HEALTH MONITORING
First Claim
1. A method, comprising:
- measuring, by at least one processor, a time at which control circuitry sends an instruction to a switch structured to control transmission of electrical power;
sensing, by at least one sensor, a change in position of the switch in response to the instruction;
determining, by the at least one processor, at least one delay between the time at which the control circuitry sends the instruction and a time at which the change in position occurs;
recording, by the at least one processor, the at least one delay in a delay measurement queue;
performing a first comparison between an average value of a plurality of delays recorded in the measurement queue and a reference delay value; and
determining whether to take an action with respect to the switch in response to the first comparison, the action comprising transmitting a notification to a user.
1 Assignment
0 Petitions
Accused Products
Abstract
A method includes measuring, by at least one processor, a time at which control circuitry sends an instruction to a switch structured to control transmission of electrical power. The method further includes sensing, by at least one sensor, a change in position of the switch in response to the instruction, and determining, by the at least one processor, a delay between the time at which the control circuitry sends the instruction and a time at which the change in position occurs. The method still further includes recording, by the at least one processor, the delay in a delay measurement queue and taking, by the at least one processor, an action with respect to the switch in response to the delay measurement queue.
3 Citations
23 Claims
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1. A method, comprising:
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measuring, by at least one processor, a time at which control circuitry sends an instruction to a switch structured to control transmission of electrical power; sensing, by at least one sensor, a change in position of the switch in response to the instruction; determining, by the at least one processor, at least one delay between the time at which the control circuitry sends the instruction and a time at which the change in position occurs; recording, by the at least one processor, the at least one delay in a delay measurement queue; performing a first comparison between an average value of a plurality of delays recorded in the measurement queue and a reference delay value; and determining whether to take an action with respect to the switch in response to the first comparison, the action comprising transmitting a notification to a user. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 23)
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10. An automatic transfer switch, comprising:
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a first movable contact member at a first location; at least one sensor configured to sense a change in position of the first movable contact member from the first location; and a circuit configured to determine a delay between a time at which at least the first movable contact member is instructed to move and a time at which the change in position from the first location occurs; record the delay in a delay measurement queue; and take an action with respect to the automatic transfer switch in response to the delay measurement queue, and wherein the circuit comprises a timer configured to initiate and terminate measurement of the delay within a predetermined latency time. - View Dependent Claims (11, 12, 13, 14, 16)
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15. (canceled)
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17. An apparatus, comprising:
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control circuitry configured to sense a position of a contact of a switch, and to deliver an instruction to the switch, switch being structured to control transmission of electrical power, wherein the instruction is configured to effectuate a change in the position of the contact of the switch; and a timer configured to measure respective deviations between times at which the switch receives the instruction and times at which the position changes; wherein the control circuitry is configured to record the respective deviations in a queue; perform a first comparison between an average value of the deviations in the queue to a calibrated value, and determine whether to transmit a notification to a user in response to the measured respective deviations in response to the first comparison. - View Dependent Claims (18, 19, 20, 21, 22)
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Specification