Devices, systems and methods for detecting reversed polarity bootleg ground wiring configurations of an electrical outlet are disclosed. For at least one embodiment, a system in includes a test transmitter and a test receiver. The test receiver being configured to detect a ping generated by the test transmitter and determine whether the ping is received via a proper receptacle of an outlet being tested. The system also includes a test receiver configured to determine is a bootleg ground configuration exists using one of time domain reflectometry and/or a resistance based measurement approach. A method for testing an outlet includes one or both of testing for reversed polarity and bootleg ground configurations.

The present invention is directed to an electrical wiring device that includes an automatic test circuit configured to commence an automatic test at a predetermined time such that a test current propagates on a test conductor. The sensor assembly provides a sensor test output responsive to the test current only if both the differential transformer and the grounded neutral transformer are operative. A fault detector circuit is configured to generate a test detection signal in response to the sensor test output only if the fault detector circuit is operable and the at least one power supply is substantially charged. A device integrity evaluation circuit includes a timer that effects a tripped state when a time measurement exceeds a threshold, the test detection signal resetting the time measurement when properly wired before the time measurement exceeds the predetermined threshold but does not reset the time measurement when miswired.

A printed circuit board includes at least one multipole pin header with at least one first pin contact and a second pin contact arranged adjacent to the first pin contact and connected to a first predetermined reference potential, at least one evaluation circuit electrically connected to the first pin contact and arranged for this purpose, detecting the application of a predetermined voltage level at the first pin contact, and a safety circuit electrically connected to the at least one evaluation circuit, which is arranged to prevent a complete voltage supply to the printed circuit board when the evaluation circuit detects the application of the predetermined voltage level at the first pin contact.

Provided is a control system of an industrial machine that can automatically detect the presence or absence of a wiring error at a start-up of a machine, and that prevents a dangerous operation such as high rotation/high torque of a motor from occurring due to a wiring error. A control system of an industrial machine includes: a control unit that controls driving of a drive unit of the industrial machine; a command unit that issues a command to the control unit; and a wiring error detection device that detects a wiring error in a system of the control unit and the drive unit on a basis of a feedback value of actual driving of the drive unit upon a start-up of the industrial machine.

An automatic monitoring system for monitoring the integrity of a wiring having a number of cables, the monitoring system having an integrity measuring unit designed to be coupled to the electrical wires in order to carry out measurements and check for the presence of faults along the electrical conductors, and a detection unit to detect a voltage present in the electrical wires and to enable the integrity measuring unit in case the voltage has a predetermined relation with a voltage threshold, indicating the fact that the electrical load is not powered by the power supply source. The integrity measuring unit has an impedance measuring circuit to apply a measurement signal to a circuit formed by the pair of electrical wires and to obtain a value of the impedance of the same circuit. The integrity measuring unit checks for the presence of a fault depending on the impedance value.

An automatic monitoring system for monitoring the integrity of a wiring having a number of cables, the monitoring system having an integrity measuring unit designed to be coupled to the electrical wires in order to carry out measurements and check for the presence of faults along the electrical conductors, and a detection unit to detect a voltage present in the electrical wires and to enable the integrity measuring unit in case the voltage has a predetermined relation with a voltage threshold, indicating the fact that the electrical load is not powered by the power supply source. The integrity measuring unit has an impedance measuring circuit to apply a measurement signal to a circuit formed by the pair of electrical wires and to obtain a value of the impedance of the same circuit. The integrity measuring unit checks for the presence of a fault depending on the impedance value.

Devices, methods and systems for meter setup verification are provided. In one aspect, a device is provided including a communication interface and at least one processor. The communication interface receives a wiring setup configuration of at least one electronic power meter and at least one measured and/or calculated parameter from the at least one electronic power meter. The at least one processor determines if the at least one electronic power meter is wired correctly based on the wiring setup configuration of the at least one electronic power meter and the at least one measured and/or calculated parameter from the at least one electronic power meter. The device may be implemented in a separate client device or in the at least one electronic power meter.

A cooking apparatus and a controlling method, where the cooking apparatus includes a plurality of power input terminals, a plurality of heaters, a detection circuit connected to the power input terminals for detecting the phase of power input into the power input terminals, and a processor. The processor configured to identify a phase difference of input power based on an electronic signal of the power output from the detection circuit, and, based on the phase difference being within one of a plurality of threshold ranges, identify the voltage between live terminals among the plurality of power input terminals based on the phase difference of the power and control at least one heater among the plurality of heaters according to the identified voltage between the live terminals, and, based on the phase difference being outside the plurality of threshold ranges, stop the operation of the cooking apparatus.

A cooking apparatus and a controlling method, where the cooking apparatus includes a plurality of power input terminals, a plurality of heaters, a detection circuit connected to the power input terminals for detecting the phase of power input into the power input terminals, and a processor. The processor configured to identify a phase difference of input power based on an electronic signal of the power output from the detection circuit, and, based on the phase difference being within one of a plurality of threshold ranges, identify the voltage between live terminals among the plurality of power input terminals based on the phase difference of the power and control at least one heater among the plurality of heaters according to the identified voltage between the live terminals, and, based on the phase difference being outside the plurality of threshold ranges, stop the operation of the cooking apparatus.

Various embodiments relate to a method, apparatus, and machine-readable storage medium including one or more of the following: identifying a chunk of computer code from a larger process to be executed as a distributed computation; creating a job request specifying the chunk of computer code and data on which the chunk of computer code is to operate; selecting a device from a plurality of devices to process the job request; transmitting the job request to the selected device; receiving a job result from the selected device; continuing the larger process based on the job result.