摘要:
A system for use in supplying current from an electric power source to a plurality of power storage devices includes a first of a plurality of charging devices configured to supply current to a first of the plurality of power storage devices. The system also includes at least one other charging device coupled to the first charging device to form a network. The other charging device is configured to supply current to at least one other power storage device. The first charging device includes a processor programmed to determine an amount of current to be at least one of received from the electric power source and supplied to the first power storage device as a function of a number of charging devices, and enable the amount of current to be at least one of received by the first charging device and supplied to the first power storage device.
摘要:
A programmable logic controller is disclosed. The programmable logic controller includes control circuitry integrally arranged with a current path and at least one micro electromechanical system (MEMS) switch disposed in the current path. The programmable logic controller further includes a hybrid arcless limiting technology (HALT) circuit connected in parallel with the at least one MEMS switch facilitating the opening of the at least one MEMS switch. The programmable logic controller also may include a MEMS switch and a voltage sensor for measuring the voltage across the MEMS switch. The MEMS switches are arranged to transmit or receive logic signals.
摘要:
A load shedding system for operating at least one circuit breaker positioned within an enclosure is described. The load shedding system includes a processor configured to receive a demand signal and to provide a predetermined load shedding signal. The load shedding system also includes at least one load shedding apparatus configured to receive the load shedding signal from the processor. The load shedding apparatus is configured to be coupled to a door of the enclosure. The load shedding apparatus is further configured to be operatively coupled to the at least one circuit breaker and further configured to actuate the at least one circuit breaker in response to the load shedding signal.
摘要:
An arc fault detector which includes a filter which receives an input signal and filters the input signal, an amplifier which amplifies a signal output from the filter, an analog-to-digital converter disposed to receive the amplified signal from the amplifier and convert the amplified signal into a digital signal, and a processing unit responsive to computer executable instructions when executed thereon that receives samples of data associated with the digital signal and performs an arc detection algorithm on the data using fuzzy logic.
摘要:
A method of detecting a series arc fault in an alternating current electrical signal is provided. A method for detecting a series arc fault in an alternating current electrical signal, comprising: a) calculating discrete wavelet coefficients using a current signal as an input for the discrete wavelet coefficient calculations, and outputting discrete wavelet coefficient filtered output; b) subsampling the discrete wavelet coefficient filtered output and outputting a subsampled output; c) calculating critical variables from the subsampled output; d) determining from the critical variables whether a series arc fault is present in the current signal; and e) outputting an signal indicating that a series arc fault is present in the current signal, if substantially all of the critical variables meet a predetermined criteria.
摘要:
A charging device configured to receive power from a power source is described. The charging device includes a motion detection device configured to provide a signal corresponding to a motion of the charging device. The charging device also includes a system controller communicatively coupled to the motion detection device and configured to determine if the motion of the charging device has exceeded a predefined limit.
摘要:
A leakage current masking device for use with a circuit includes at least one inductive load device coupled to the circuit and configured to supply an inductive load to the circuit, and a processor communicatively coupled to the inductive load device. The processor is configured to receive a signal representative of a current through the circuit, calculate a capacitive leakage current component of the current, and cause the inductive load device to adjust the inductive load supplied to the circuit to reduce the capacitive leakage current component.
摘要:
A controller for a power system including a plurality of power system components includes a memory for storing computer-executable instructions and a processor configured to execute the computer-executable instructions. The computer-executable instructions program the processor to determine an operating condition of at least one first power system component and at least one second power system component of the plurality of power system components. The processor is also programmed to determine whether a predetermined condition is met based on at least one operating condition, and transmit a command to at least one other controller to at least one of electrically couple the first power system component to the second power system component and electrically decouple the first power system component from the second power system component based on whether the predetermined condition is met.
摘要:
An ablative plasma gun having a dual power source pulse generator is configured to generate a high voltage low current pulse and a low voltage high current pulse. A pair of electrodes are disposed and configured to receive the high voltage low current pulse, and to receive the low voltage high current pulse in response to the high voltage low current pulse.
摘要:
A circuit interrupter method for interrupting a flow of current, including: providing a controller for determining the presence of predetermined current in the circuit, the predetermined current value stored in the controller; providing a circuit breaker comprising a trip mechanism for receiving trip signal, a current transformer for providing output proportional to predetermined current in the circuit, a switch for interrupting the flow of current in the circuit, a control input for receipt of an operating signal by the trip mechanism, and proximate and distal connectors connecting the circuit breaker to a source and a circuit, respectively; determining, by the controller, the presence of a current in the circuit; receiving a trip signal at the circuit breaker from the controller, and interrupting the flow of current in the circuit, when the current in the circuit is determined by the controller to be a predetermined current.