Abstract:
An electrical connector includes a housing with a plurality of electrical contacts, including a ground contact, extending therefrom. The connector has a shell with the housing positioned therein. A monitor circuit is positioned in the housing and configured to determine continuity between the shell and the ground contact. In some examples, the monitor circuit includes an output connected to an indicator that is configured to output a signal in response to the continuity determination to indicate the condition of the connection between the ground contact and the connector shell.
Abstract:
A system comprises an explosion proof device and an intrinsically safe device. The explosion proof device is coupled to a power supply. The intrinsically safe device includes a user interface. The explosion proof device is configured to induce inductive coupling with the intrinsically safe device. The inductive coupling between the explosion proof device and the intrinsically safe device enables the transfer of power from the explosion proof device to the user interface of the intrinsically safe device. The inductive coupling can additionally enable the transfer of data between the explosion proof device and the intrinsically safe device.
Abstract:
A system to determine the ground impedance of a conduit system includes a conductive sheath and a resistor of known value. The conductive sheath is configured to surround a portion of a conductor housed within a conduit system. Capacitive coupling occurs between the sheath and the conductor to establish a voltage source. The resistor is electrically coupled between the voltage source and a metal component of the conduit system, and a voltage drop is read across the resistor to determine the health of the ground impedance of the conduit system.
Abstract:
An electrical connector includes a housing with a plurality of electrical contacts, including a ground contact, extending therefrom. The connector has a shell with the housing positioned therein. A monitor circuit is positioned in the housing and configured to determine continuity between the shell and the ground contact. In some examples, the monitor circuit includes an output connected to an indicator that is configured to output a signal in response to the continuity determination to indicate the condition of the connection between the ground contact and the connector shell.
Abstract:
An electrical circuit can include a power supply that generates a power output. The electrical circuit can also include a load that receives the power output from the power supply. The electrical circuit can further include an electrical conductor coupled to the power supply and the load, where the electrical conductor emits a magnetic field when the power output flows through the electrical conductor to the load. The electrical circuit can also include a response circuit coupled to the power supply and disposed proximate to the electrical conductor, where the response circuit generates a feedback output based on the magnetic field, and where the power output generated by the power supply is based on the feedback output.
Abstract:
The present disclosure relates to an electrical protection system, including a breaker enclosure and associated terminals, and the methods of use therefor that allow for a circuit breaker or other electrical protection device to be safely added or removed from a circuit while power is supplied to at least one of the terminals. The disclosed enclosure and terminals include a series of interrelated safety features that prevent a user from accidentally completing the circuit from one terminal to another when the electrical protection system would be in an unsafe state. The combination of features described herein allow for a replaceable electrical protection device for equipment under load to be realized, thus improving user safety.
Abstract:
An electrical connector testing system can include a first connector end and a controller coupled to first connector end. The system can also include an electrical load coupled to the first connector end, where the electrical load includes an electrical cable and a second connector end coupled to an end of the electrical cable. The controller can determine whether an adverse electrical condition exists with respect to the electrical load before allowing power to flow between the first connector end and the second connector end.
Abstract:
A moisture control system for an electrical enclosure can include a control module. The system can also include a drain assembly coupled to the control module, where the drain assembly is disposed, at least in part, within the cavity of the electrical enclosure, where the drain assembly is configured to remove, based on instructions received from the control module, liquid from the cavity to the ambient environment.
Abstract:
A system comprises an industrial enclosure, a first magnetic control and a second magnetic control. The industrial enclosure has a cover with an outer surface. The second magnetic control is nested within the first magnetic control, and the nested magnetic controls are secured to the outer surface of the cover of the enclosure.
Abstract:
A system includes a hot wire and a neutral wire configured to establish a closed circuit between a power source and a load. The system further includes first and second transformers as well as a sensor. The first current transformer is coupled to the hot wire and is configured to introduce a first test current, with a first polarity, into the hot wire. The second current transformer is coupled to the neutral wire and configured to substantially simultaneously introduce a second test current into the neutral wire. The second test current has the same polarity as the first test current. The sensor is configured to sense an asymmetry between the first and second test currents and is further configured to cause interruption of the closed circuit upon sensing the asymmetry.