Asco Power Technologies, L.p.

Automatic Switch Company

John E Hayes

Mario Ibrahim

Victor E Bonachea

Robert Siciliano

Daniel G Scheffer

Vladimir Miloslavskiy

Christian G Hess

Zbigniew Baranski

Systems and methods for providing a mobile memory module in an automatic transfer switch (ATS) allow the memory module to be easily removed from a controller of the ATS. The mobile memory module is a discrete, nonvolatile memory module that stores operational settings for the ATS and can be mounted and removed via a removable fastener. When thus mounted, the mobile memory module is connected to a signal path that allows data communication with a microprocessor on the controller. The microprocessor can retrieve operational settings from the mobile memory module as needed and store updated or new operational settings on the mobile memory module as required. In some embodiments, the mobile memory module has a protective outer housing that is hardened to withstand catastrophic transfer switch failure while still retaining all operational settings stored on the module.

Mobile memory module for electrical transfer switch

According to aspects of the disclosure, a method and system are provided for transferring a load between a primary power source and a secondary power source. In accordance with the disclosure, a method of transferring a load between a first power source and a second power source includes analyzing a plurality of power sources to identify one or more power sources providing a power greater than a threshold value. The method also includes selecting a power source from the identified one or more power sources providing power greater than the threshold value. The method further includes connecting the selected power source to a transfer mechanism. The method still further includes actuating the transfer mechanism, using power provided to the transfer mechanism by the selected power source, to transfer the load from a connection with the first power source to a connection with the second power source.

Transfer switch power source selection systems and methods

Transfer switch source select systems and methods

An example system for controlling a transfer switch includes a power modulation circuit and a control module. When the power modulation circuit is coupled to a solenoid of a transfer switch, a first power supply, and a second power supply, the control module is configured to perform functions. The functions include sensing one or more operating conditions of the system and using the one or more operating conditions of the system as a basis to determine one or more control parameters. The functions also include controlling, according to the one or more control parameters, the power modulation circuit to cause the second power supply to provide a current through the solenoid, thereby operating the transfer switch to discontinue a conductive path between a load and the first power supply and create a conductive path between the load and the second power supply.

Systems and method for controlling a transfer switch

In an example, a method for signaling a generator includes coupling a transmitter to a generator, a receiver to a transfer switch, a first conductor between a first output of the transmitter and a second input of the receiver, and a second conductor between a second output of the receiver and a first input of the transmitter. The method also includes providing an input power signal to the transmitter, and transmitting an electrical-loop signal around a closed loop circuit. After transmitting the electrical-loop signal, the method includes determining a resistance of the closed loop circuit. If the determined resistance is zero or infinite, then the method includes activating an alarm system. If the determined resistance is at a first reference-resistance value, then the method includes maintaining a deactivation of the generator. If the determined resistance is at a second reference-resistance value, then the method includes activating the generator.

Systems and methods for signaling a generator

A user interface for electrical components, such as a transfer switch, is presented having a first part mounted to an electrical enclosure and a second part that is removable from the first part without accessing the electrical enclosure or disconnecting power from the electrical components within the enclosure.

User interface for power quality monitoring and measuring devices

Methods and systems for transfer-switch controller backup and transfer-switch controller operation are provided. An example backup apparatus includes a memory configured to store transfer-switch data related to a first transfer-switch controller, wherein the first transfer switch-controller is a controller for a given transfer switch. The apparatus is capable of interfacing with a communication interface of the first transfer-switch controller. The apparatus is further capable of being removed from the communication interface of the first transfer-switch controller and thereafter interfacing with a communication interface of a second transfer-switch controller, wherein the second transfer-switch controller is a replacement controller for the given transfer switch. The memory is further configured to, after the apparatus interfacing with the communication interface of the second transfer-switch controller, provide the transfer-switch data related to the first transfer-switch controller to the second transfer-switch controller.

Methods and systems for dynamic memory backup for transfer-switch controllers

A method of analyzing the characteristics of a power source includes receiving a power source having at least one phase and sensing voltage signals of each phase of the at least one phase. The method includes detecting a zero crossing event of a selected phase of the at least one phase based on the sensed voltage signals of the selected phase. The method also includes determining, using a processor, voltage information for each phase of the at least one phase based on the corresponding sensed voltage signals. The method further includes outputting a series of pulses via a galvanic isolator in response to the zero crossing event. Respective lengths of some or all of the pulses in the series are based on the corresponding voltage information for each of the at least one phase.

Power analysis module for monitoring an electrical power source

A method and apparatus for determining the position of the main contacts of an automatic transfer switch, without need for special position contacts, by monitoring for the presence of voltages at the normal source voltage contacts, the alternate source voltage contacts, the normal source coil control voltage contacts and the alternate source coil control voltage contacts of the automatic transfer switch, and providing an indication of switch position in response thereto.

Transfer switch position sensing using coil control contacts

A linear optocoupler is employed to provide a signal which is a galvanically isolated reproduction of the magnitude of an A.C. line voltage and another galvanically isolated signal indicative of a change in the polarity of the line voltage for enabling safe monitoring of a change the A.C. voltage. Actuation of an automatic transfer switch to substitute an emergency source of power for a normal source that has failed may be achieved with the emergency power waveform used to replicate the normal power waveform.

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Hardwick, NJ, United States of America

John E Hayes