S & C Electric Co.
|S & C Electric Co. Patent applications|
|Patent application number||Title||Published|
|20090290275||Fault Protection System and Method for an Electrical Power Distribution System - A fault protection system for an electrical power distribution system and a method of configuring and operating a fault protection system for an electrical power distribution system accepts device fault protection parameters, such as the time-current-characteristics (TCCs), of boundary devices, and selects and sets fault protection parameters for one or more fault protection devices, such as fault-interrupters, that thus coordinate with the boundary devices. Fault protection parameter selection for each fault protection device may occur automatically, and each device may reconfigure its fault protection parameters based upon changes in the electrical power distribution system, for example, as the result of fault isolation and/or service restoration.||11-26-2009|
|20090273871||Virtual Closed Loop Power Distribution System and Method - A virtual closed loop power distribution system couples a parallel source to a feeder upon an initial indication of a fault existing on a distribution feeder If the fault is persistent, a fault protection system including fault protection devices segmenting the distribution feeder operates to isolate the fault segment of the distribution feeder from each of the coupled sources. The coupled sources provide substantially uninterrupted service to the non-faulted segments of the distribution feeder until a circuit reconfiguration and return-to-normal function operates to restore the system upon repair of the fault.||11-05-2009|
|20090212898||MOUNTING ASSEMBLY - A mounting assembly includes a trunnion body portion and a coupled guiding member. The guiding member may be a spring or spring like and may further include a blocking structure. The trunnion body portion may include a loop.||08-27-2009|
|20090046400||Fault Protection Device with Group Trip Delay and Method - A reclosing fault protection device detects a partial bypass state. Upon detecting the partial bypass state, the fault protection device implements a ground trip delay operating state. The ground trip delay operating state provides a delayed ground trip response characteristic.||02-19-2009|
|20080309437||Fault Interrupting and Reclosing Device - A fault interrupting and reclosing device includes a circuit interrupter coupled to an actuator. The actuator includes at least one force generating element for generating an opening force for opening the circuit interrupter and for generating a restoring force to close the circuit interrupter. The device further includes a latch to engage the actuator to hold the contacts open once opened. In a preferred arrangement, the device is provided with an automatic mode of operation including a reclose process and a non-reclosing mode of operation. The device also preferably includes a method of determining the end-of-life of a vacuum interrupter monitors characteristics and/or parameters of a fault current or vacuum interrupter operation to predict a percent of life consumed with each fault current interruption operation. A cumulative percent of life consumed may also be determined, and an end-of-life may be predicted based upon the cumulative percent of life consumed.||12-18-2008|
|20080303615||Fault Interrupter and Operating Method - A fault interrupter and a method of operating a fault interrupter to reduce arcing time during fault interruption. Fault interrupter operation is delayed following detecting a peak current such that its operation occurs at a point of the current wave resulting in reduced arcing during fault isolation.||12-11-2008|
|20080266733||Circuit Testing Closer Apparatus and Method With In-Rush Current Awareness - A circuit testing closer is capable of closing a power distribution circuit and interrupting the resulting current at the next current zero. Upon detecting a fault, the circuit testing closer is operable to open contacts to isolate the fault. Next, the circuit testing closer tests the faulted line to determine whether the fault has cleared. The circuit testing closer may generate a first test signal having a first polarity and a second test signal having a second polarity opposite the first polarity. Generation of the second test signal may be limited to occur when the first test signal indicates a fault.||10-30-2008|
|20080237194||METAL-HYDRATE CONTAINING ARC-EXTINGUISHING COMPOSITIONS AND METHODS - An arc extinguishing composition including an arc-quenching metal hydrate (herein defined as a metal compound that produces water vapor (H||10-02-2008|
|20080217298||Wear Indicator for a Circuit Interrupter Exhaust Control Device - An exhaust control device includes a wear indicator disposed within a housing of the exhaust control device. The wear indicator is arranged to be exposed to a flow of exhaust gas through the exhaust control device. The wear indicator has a first observable state indicative of remaining useful life of the exhaust control device. The wear indicator is responsive to a flow of exhaust gas through the exhaust control device to assume a second observable state indicative of the exhaust control device having reached the end of its useful life.||09-11-2008|
|20080217148||Circuit Interrupter Assembly and Method of Making the Same - A circuit interrupting device is manufacturable in a number of different configurations providing current path options, conductor connectivity options and sensing options. The device may include a configurable solid insulation housing into which various operable components are installed. The device may include a core element including a sensor assembly and conductor members, from which the various configurations may be established including a plurality of different current path configurations. A plurality of circuit interrupting devices (302) may be configured together in an assembly with corresponding disconnect assemblies (||09-11-2008|
|20080204961||Fuse Saving Power Distribution System and Fault Protection - Fault protection is provided with fuse saving in a power distribution system. An operating characteristic of a fault protection device protecting a portion of the power distribution system is configured in view of fuse melting characteristics. In this manner, fault protection is provided with fuse saving, when possible, with reduced service disruptions.||08-28-2008|
Patent applications by S & C Electric Co.