Abstract:
A method for verifying that a disconnect is open includes providing a disconnect verification unit electrically connected to a load side of a disconnect to be verified, having the disconnect verification unit determine whether the contact for each phase of the disconnect is open, having the disconnect verification unit determine whether the leads are connected to the load side of the disconnect; and sending a signal to a user interface of a status of the disconnect.
Abstract:
A system for the detection and indication of both the absence and presence of voltage is described. The system has a voltage detector module, a voltage indicator module, and a communication network based continuous secondary power source configured to enable the voltage indicator module to positively indicate the absence of voltage in the primary circuit. In some embodiments, the system can positively indicate the presence of voltage in the primary circuit such that the positive detection and indication is powered by the primary circuit itself. In some embodiments, the positive detection and indication of voltage can also be powered by the communication network based secondary power source.
Abstract:
An absence of voltage detection system has an isolation module connected to a voltage source to be detected an I/O accessory module connected to the isolation module wherein the I/O accessory module is configured to allow remote activation of the isolation module.
Abstract:
An absence of voltage detection system has an isolation module connected to a voltage source to be detected an I/O accessory module connected to the isolation module wherein the I/O accessory module is configured to allow remote activation of the isolation module.
Abstract:
A safety termination apparatus for connecting to a power conductor has first and second galvanic connections, a sensor wire, and an insulating housing. The first and second galvanic connections are connected to an uninsulated portion of the power conductor and a sensor wire is electrically connected to each galvanic connection. The insulating housing encloses the galvanic connections and has first and second compartments for enclosing the first and second galvanic connections. The first and second compartments separate the first and second galvanic connections such that the first and second galvanic connections are not electrically connected to each other than through a mutual connection to the power conductor.
Abstract:
An installed device electrically connected to a power source. The installed device has circuitry capable of detecting voltage, performing self-diagnostics, and testing for connectivity to the power source. In one embodiment, the device can also check to see if the voltage is at a de-energized level, recheck for continuity and repeat the self-diagnostics. In another embodiment, the installed device can be electrically connected to the line and load side of a disconnect and have circuitry configured to check the status of the disconnect. In another embodiment, the device can be configured to communicate with a portable reader in order to transfer information to the portable reader. In yet another embodiment, the device can be configured to interact with a controller that controls access to the panel in which the device is installed.
Abstract:
A method for allowing access to an electrical enclosure having a disconnect includes upon initiation by a user or upon a change of state of the disconnect automatically performing the steps of checking for an absence of voltage, giving a positive indication of an absence of voltage, checking the state of each phase of the electrical disconnect to ensure contacts of the disconnect are open, and opening a lock on the enclosure.
Abstract:
A method of providing a user access to an enclosure with an absence of voltage testing device (AVT) includes initiating an absence of voltage test, determining whether the user has appropriate authorization, and providing access to the enclosure.
Abstract:
A safety termination apparatus for connecting to a power conductor has first and second galvanic connections, a sensor wire, and an insulating housing. The first and second galvanic connections are connected to an uninsulated portion of the power conductor and a sensor wire is electrically connected to each galvanic connection. The insulating housing encloses the galvanic connections and has first and second compartments for enclosing the first and second galvanic connections. The first and second compartments separate the first and second galvanic connections such that the first and second galvanic connections are not electrically connected to each other than through a mutual connection to the power conductor.
Abstract:
An absence of voltage detection system has an isolation module connected to a voltage source to be detected an I/O accessory module connected to the isolation module wherein the I/O accessory module is configured to allow remote activation of the isolation module.