A system for isolating a power conductor includes a power conductor that extends between first and second flanking support structures. First and second collars are connected respectively to the first and second flanking support structures. The first and second collars each at least partially surround the power conductor and including respective first and second open tracks that cooperate with each other to define a sheet-receiving slot. An electrically insulating/insulative sheet is located in the sheet-receiving slot and extends continuously between the first and second collars. The sheet is secured in covering relation with the power conductor.
An interface circuit having releasable electrical connectors and as little as a single relay providing a standardized connection between panel controls intended for three-wire, two-wire or combination three-wire/two-wire control and a motor drive or motor controller. In this way, greatly simplified manufacturing of control cabinets may be provided with variations in control strategy being implemented simply by the provision of different panel controls having prewired harnesses and connectors.
A connector system is provided for use in power applications, such as for conveying three phase power in electrical enclosures. The system comprises plug assemblies in which a power conductor is mounted in a floating arrangement with elastically deformable conductive structures extending from either side thereof. A mating receptacle may be mounted on a bus conductor. Three such arrangements may be provided for conveying three phase power. The structures allow for plug-in mating of the system components while accommodating considerable translational and angular misalignment between the connector parts.
H01R 4/48 - Clamped connectionsSpring connections using a spring, clip or other resilient member
H01R 4/58 - Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one anotherMeans for effecting or maintaining such contactElectrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
H01R 25/00 - Coupling parts adapted for simultaneous co-operation with two or more identical counterparts, e.g. for distributing energy to two or more circuits
4.
FILTER CAPACITOR DEGRADATION DETECTION APPARATUS AND METHOD
Power conversion systems and methods are presented for detecting input filter capacitor degradation or approach of end of operational life based on filter capacitor current measurements using single and/or dual threshold comparisons for computed instantaneous sum of squares of filter currents or power values.
H02M 1/32 - Means for protecting converters other than by automatic disconnection
H02M 1/44 - Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
H02M 5/42 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters
5.
POWER CONVERTER RESONANCE DETECTION APPARATUS AND METHOD
Power conversion systems and methods are presented for detecting filter capacitor resonance conditions in a power conversion system in which filter currents are measured and filtered using a bandpass filter, and one or more computed mean, RMS, and/or Fourier transform values are computed based on the filtered value(s). The computed measurement value or values are compared with a predetermined threshold and a suspected filter capacitor resonance condition is selectively identified based on comparison result.
H02M 1/12 - Arrangements for reducing harmonics from AC input or output
H02M 5/42 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters
Methods and system for sensing current include detecting current through a sensing coil resulting from a field produced by current through a primary conductor. The sensing coil has a core that may become saturated by the primary current field. If the core is not saturated, a sensing circuit may detect the current through the sensing coil by changing the state of at least one controlled switch. If the core is saturated, the sensing circuit changes the state of the at least one controlled switch to pull the core out of saturation, at which time a current measurement is made. The technique may be used with AC currents, including changing currents, as well as with DC currents, and currents that may be AC at times and become essentially DC at other times.
An industrial control system is provided. The system includes tagged data that is collected from a plurality of sustainability factor-associated data sources across an industrial automation environment, where the tagged data is associated with a portion of a process that is attributed to the sustainability factor data sources. A manufacturing model is associated with the tagged data, where the manufacturing model is employed to enhance the efficiencies of the process.
An improved power converter that produces reduced-levels of common-mode voltages, or even entirely eliminates such voltages, is disclosed herein, along with a method of reducing common-mode voltages. In at least some embodiments, the improved power converter is equipped with common-mode filter inductors and a link coupling input and output ports of the power converter with one another to communicate a ground point associated with the input ports of the converter (and the source) to the load. Further, in at least some embodiments, the method includes providing common mode filter inductors as part of the converter, where the inductors are connected at least indirectly to at least one of a rectifier and an inverter of the converter, and communicating a grounded neutral from input ports of the converter to output ports of the converter by way of at least one additional linkage.
H02M 5/42 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters
H02M 5/44 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC
H02M 5/45 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
H02M 5/458 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
AC-to-AC power conversion systems and methods are presented, in which a small number of asymmetrical power switching devices are used to convert input AC power to output AC power of constant or variable frequency.
H02M 1/084 - Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters using a control circuit common to several phases of a multi-phase system
H02M 5/42 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters
H02M 5/458 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
10.
POWER CONVERTER WITH ACTIVE DISCHARGING FOR IMPROVED AUTO-RESTART CAPABILITY
A method of operating a power converter in response to an interruption in an input power being provided to the power converter, as well as a power converter capable of performing such method and including a rectifier and an inverter coupled at least indirectly with one another, are disclosed. In at least some embodiments, the method includes (a) operating the rectifier so that energy stored in at least one first component coupled at least indirectly to at least one input terminal of the rectifier is transferred to an intermediate component coupled between the rectifier and the inverter, while the inverter is operated in a first disconnect mode, and (b) subsequently operating the inverter so that at least some of the energy transferred to the intermediate component is transferred to at least one output port of the power converter, while the rectifier is operated in a second disconnect mode.
H02M 5/44 - Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into DC by static converters using discharge tubes or semiconductor devices to convert the intermediate DC into AC
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
An apparatus and method used to charge a self powered gate driver system. The apparatus may include a current loop for inducing a current in a coil. A bridge rectifier may rectify the current induced in the coil and charge a capacitor used to power a driver in a self powered gate driver system. The current loop and coil may be separated by a dielectric to prevent current from passing between the self powered gate driver system and the current loop. The current loop may couple to a line voltage transformer to drive an alternating current through the current loop. In certain embodiments, a single current loop and transformer may charge a plurality of self powered gate driver systems.
The present invention relates to a drive system that includes a module that operates as a server, where in at least some embodiments the module is at least one of directly integrated with another module that operates as a drive and fully integrated to include the drive. The server allows for communications with one or more terminals via an internet-type communications medium, while the drive is for controlling, monitoring and/or otherwise interacting with at least one motor, electromechanical machine, or other appropriate type of machine/process. In at least some embodiments, the server is capable of providing web pages, executable programs and/or other information including, for example, information in accordance with an FTP protocol onto the internet for receipt by the terminals. The terminals communicate commands and other information via the internet back to the server, which in turn can influence the drive and the controlled machine/process.
The present invention relates to a drive system that includes a module that operates as a server, where in at least some embodiments the module is at least one of directly integrated with another module that operates as a drive and folly integrated to include the drive. The server allows for communications with one or more terminals via an internet-type communications medium, while the drive is for controlling, monitoring and/or otherwise interacting with at least one motor, electromechanical machine, or other appropriate type of machine/process. In at least some embodiments, the server is capable of providing web pages, executable programs and/or other information including, for example, information in accordance with an FTP protocol onto the internet for receipt by the terminals. The terminals communicate commands and other information via the internet back to the server, which in turn can influence the drive and the controlled machine/process.
A disconnect is coupled to a rotary shaft communicating with a door-mounted knob provides an operator on the shaft for engaging the door handle to detect closure of the door. The operator includes a pair of coupling mechanisms that control the transmission of torque between the operator and the shaft depending on whether the door is open or closed. Specifically, when the door is closed, torque applied to the operator in both directions is transmitted to the shaft. If the door is open, torqueapplied to the operator is only transmitted in one direction to disconnect power through the disconnect unless the user performs a predetermined sequence of events to rotatably the operator to the shaft with respect to rotation in the opposite direction that connects power through the disconnect. When the door is open the operator may be easily used to disconnect power by may be used to connect power only when the user manipulates the operator in a certain way.
H01H 9/22 - Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
H01H 85/25 - Safety arrangements preventing or inhibiting contact with live parts, including operation of isolation on removal of cover
H02B 1/26 - CasingsParts thereof or accessories therefor
15.
DISCONNECTING HANDLE WITH AUXILIARY CONTACTS FOR USE WITH CDM
A handle assembly for use with a planar member forming an opening and having first and second sides, the assembly including a handle member moveable between at least first and second positions and mounted on the second side of the planar member adjacent the opening, an extension member rigidly connected to and extending from the handle member through the opening, a cam at least linkable to at least one of the handle member and the extension member for movement therewith and at least a first contact including a activation member, the first contact closing when the activation member is activated, the cam, extension member and activation member positionable in a first relative juxtaposition with respect to each other such that when the handle member is in one of the first and second positions, the cam activates the activation member and, when the handle member is in the other of the first and second positions, the cam releases the activation member.
H01H 3/42 - Driving mechanisms, i.e. for transmitting driving force to the contacts using cam or eccentric
H01H 9/22 - Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
An apparatus for use with a control assembly including a power source and a circuit disconnector located on a first side of a planar member forming an opening, the disconnector including a first mechanical linkage having open and closed positions, the apparatus for manipulating the mechanical linkage between the open and closed positions and visually indicating on a second side of the planar member at least a first state of the control assembly when the first state occurs, the apparatus including a handle assembly including a handle member moveable between at least first and second positions and positioned on the second side of the planar member adjacent the opening, an extension member rigidly connected to and extending from the handle member through the opening and forming a second mechanical linkage at a distal end that is linkable with the first mechanical linkage on the first side of the planar member, the extension member moving the first mechanical linkage between the closed and open positions when the handle is moved between the first and second positions, respectively and at least a first light emitter positioned on the second side of the planar member, and at least a first contact linkable between the power source and the first light emitter that closes to provide power to the first light emitter when the first state occurs.
patents
