Abstract: Aspects relate to systems and methods of use for a crash safe battery pack that includes a case, a first battery module located within the case and mounted to the case with at least a breakaway mount, a second battery module located within the case, a frangible connection configured to provide electrical conduction between the first battery module and the second battery module, and a die configured to contact and separate the frangible connection when the crash safe battery pack is impacted with a sufficiently great connection breaking force.

Abstract: Aspects relate to systems and methods of use for a crash safe battery pack that includes a case, a first battery module located within the case and mounted to the case with at least a breakaway mount, a second battery module located within the case, a frangible connection configured to provide electrical conduction between the first battery module and the second battery module, and a die configured to contact and separate the frangible connection when the crash safe battery pack is impacted with a sufficiently great connection breaking force.

Abstract: In a gas circuit breaker, arc-extinguishing gas is filled in a container. A movable portion housed in the container includes a movable arc contact. The movable portion includes a pressure accumulator that increases pressure of an arc-extinguishing gas. An opposing portion housed in the container includes an opposing arc contact, an exhaust pipe, and a shielding portion. The shielding portion includes a first shielding wall intersecting with an axial direction of the pipe and a second shielding wall having a cylindrical shape extending from the first shielding wall toward the movable portion along the axial direction of the pipe. The second shielding wall includes through-holes. Lengths of the respective through-holes along the axial direction are from 18 millimeter's to 55 millimeters inclusive. An arc-extinguishing gas whose pressure has been increased in the pressure accumulator flows into a space to extinguish arc discharge, and flows into the second shielding wall.

Abstract: An electrical switch assembly includes a first contact supported for movement into and out of electrical connection with a second contact. A cam assembly is configured to deflect a spring into a stressed condition, and to move the first contact into electrical connection with the second contact under a bias of the spring upon return deflection of the spring from the stressed condition. A motor has an output member. A linkage interconnects the output member with the cam assembly to deflect the spring into the stressed condition in response to movement of the output member.

Abstract: Disclosed is an apparatus capable of suppressing a fire of a battery pack when a fire occurs at the battery pack. The fire suppression apparatus includes a fire detection sensor for detecting the probability of fire occurrence at a battery pack, a fire-extinguishing chemical tank containing a fire-extinguishing chemical in an inner space therein, and a control unit for allowing the fire-extinguishing chemical of the fire-extinguishing chemical tank into the battery pack when fire occurrence is detected by the fire detection sensor.

Abstract: A process for calibrating a first loop feature value estimation method using a first locally measurable loop characteristic and a first set of parameters, includes taking measurements of the first locally measurable loop characteristic for a plurality of loops, and obtaining a reference data set representing reference estimates of the loop feature value. The reference estimates are obtained by performing a calibrated second loop feature value estimation method using a second locally measurable loop characteristic and a second set of parameters. The method further includes determining calibrated parameters so as to minimize a deviation between the reference estimates and estimates obtained by applying the first estimation method to the measurements using the calibrated parameters as the first set of parameters.

Abstract: The switchgear includes a vacuum circuit breaker that is disposed in a circuit breaker chamber compartmented by a grounded metal plate, a busbar that is disposed in a busbar chamber and connected to the vacuum circuit breaker through a conductor, a cable that is disposed in a cable chamber and connected at one end to a load side, and a grounding device that is operated by a grounding device actuator disposed in a grounding device actuator chamber, connected to the vacuum circuit breaker through a conductor, and connected to the other end of the cable. The busbar is formed by a solid-insulated busbar. The conductor connecting the vacuum circuit breaker to the busbar and the conductor connecting the vacuum circuit breaker to the grounding device are both formed by a solid-insulated conductor. The circuit breaker chamber and the grounding device have a sealed structure.

Abstract: Centralized coordination of setting and adjusting trip settings of electronic circuit breakers in an electrical distribution system by monitoring short circuit current availability (SCCA) and adjusting trip settings based on received SCCA estimates from SCCA monitoring devices installed at main, feeder, and branch nodes of the distribution system. The SCCA monitoring devices are capable of automatically estimating the SCCA in the circuit or node at which the SCCA device is installed and transmitting SCCA estimates to a controller, which uses the SCCA estimates to coordinate adjustments to trip settings for the various circuit breakers. Depending on the node position of the circuit breaker and the corresponding SCCA at that node, the controller adjusts in real-time the short-circuit trip settings for the circuit breakers so that they are below the SCCA value. Optional user-inputted settings can affect the trip setting adjustments, such as transient loading conditions that can influence the SCCA estimates.

Abstract: The current in a generator circuit breaker is measured using the Faraday effect of an optical sensing fiber looped around the breaker's conductor. The sensing fiber is arranged in a sensing strip, which can be mounted to the enclosure of the generator circuit breaker or to the conductor. Exemplary embodiments can have a wide measuring range and can easily be fitted to new or existing generator circuit breakers.

Abstract: A smart load switch or smart plug incorporates a built-in circuit that can monitor a physical variable condition and compare that sensed condition to data stored in a memory. A controller receives input data from the measuring device, compares the data to the reference data in memory, and selectively controls the on/off condition of a switch and thus the device that is plugged into the switch.

Abstract: A test system for testing a capacitive touch sensor is provided. The test system includes a resistor, a signal generator and a micro controller. A first end of the resistor is electrically connected to a sensing port of the capacitive touch sensor. The signal generator provides a test voltage to a second end of the resistor according to control information. In this way, the resistor generates a test current according to the test voltage, and the capacitive touch sensor provides a voltage difference to the sensing port according to a plurality of switching signals, and converts the test current into test information. The micro controller generates the control information according to a test table, and compares the test information according to the test table, so as to determine whether an operation of the capacitive touch sensor is normal.

Abstract: A surge suppressor for protecting electronic equipment by suppressing damaging surges of low frequency signals in a radio frequency (RF) transmission line, while allowing RF signals of a desired frequency range to pass through the transmission line. The surge suppressor can comprise a housing, a center pin connected to a stub, and at least one interface pin conductively coupled to the cable and capacitively coupled to the center pin. The surge suppressor can have a signal pass through bandwidth approximately 10 times exceeding the bandwidth of traditional quarter wavelength stub (QWS) devices, a higher return loss, and higher surge attenuation level. The surge suppressor can be symmetrically insertable into a cable providing an RF communication line.

Abstract: A safety arrangement for a motor vehicle includes an electrical energy storage unit. The arrangement is particularly intended for use in a motor vehicle configured to be powered electrically, or by a so-called hybrid motor, and which hence comprises a high voltage electrical storage unit such as a battery or capacitor. The safety arrangement is configured to cool the storage unit in response to a signal indicative of an accident situation or battery malfunction, and comprises: a source of compressed inert gas and a flow-release actuator, the flow-release actuator being actuable upon receipt of an actuation signal so as to release a flow of inert gas from said source, the arrangement being configured such that said flow is directed substantially onto said storage unit so as to cool the unit.

Abstract: One embodiment of the disclosures made herein is a network equipment protection module configured for being removably mounted on a network equipment protector block. In accordance with such a network equipment protection module, the network equipment protection module includes surge protection circuitry configured for providing surge protection functionality, AC coupling-DC blocking circuitry configured for providing AC coupling-DC blocking functionality and DC blocking circuitry configured for providing DC blocking functionality. The DC blocking circuitry enables the DC blocking functionality to be selectively activated and deactivated. In this manner, such a network equipment protection module enables the combination of surge protection, DSL signal transmission, full metallic loop testing (MLT) and bridging of a DC voltage to be facilitated in association with a twisted pair transmission line.

Abstract: An electric pole (1) for a low-voltage automatic power circuit breaker, comprising: a fixed contact (2) and a movable contact (3) that can be coupled/uncoupled with respect to each other, said fixed contact being electrically connected to a phase conductor, and a sensing unit that comprises a first section suitable to accommodate a current sensor associated with the phase conductor, the current sensor generating sensing signals that are indicative of the intensity of the electrical current that flows through the phase conductor, the sensing unit being electrically connected to a protection unit of the automatic power circuit breaker, the protection unit being suitable to receive the sensing signals and to generate control signals for actuation means operatively connected to said movable contact, and comprising at least one input section (14) provided with one or more electrical input terminals (141); whose particularity consists of the fact that the sensing unit comprises a second section (20), which is rigid

Abstract: The invention is a power strip with an internal smoke detection device, which cuts off AC electrical power to attached electrical devices if smoke is detected.

Abstract: A personal computer protection device for disconnecting a computer system from a communications channel during power down periods. The personal computer protection device includes a power sensor for sensing power drawn by the computer system, an input port for connecting to a communications channel, an output for connecting the input port to a communications channel input of the computer system and a relay connected between the input port and output port. The relay selectively disconnects the input port and output port when the sensor senses the power drawn is below a threshold value thereby indicating the computer system is in a powered down or sleep state.

Abstract: A jetting apparatus for mixing at least liquid and gas to create the mixed flow of the gas and the liquid to thereby jet the mixed flow is provided. The jetting apparatus has a passage of the mixed flow of the gas and the liquid, the passage including at least one partition and a plurality of sub-passages divided by the partition, and liquid injection ports being provided in correspondence with the divided sub-passages. Mass flow per sectional area of the mixed flow of the gas and the liquid passing through the respective sub-passages is substantially equal.

Abstract: A current transducer system for measuring AC current in a high-voltage main circuit having a circuit breaker and a disconnecting switch in an integrated gas-insulated switchgear. The system comprises a current sensor for detecting the AC current and outputting an analog electric signal representing the AC current, the current sensor disposed near the circuit breaker. The system further comprises a sensor unit including an analog-to-digital converter for converting the analog electric signal to a digital electric signal, and an electric-to-optic converter for converting the digital electric signal to a digital optic signal, the sensor unit disposed near the circuit breaker. The system further comprises optic transmission means for transmitting the digital optic signal.

Abstract: During opening or closing of the apparatus, in particular a circuit breaker while it is electrically isolated, the method consists in:i) recording a signal representative of the variation over time of the pressure inside the interrupter chamber by means of a sensor disposed outside the interrupter chamber and mounted to be in communication with the gas under pressure inside said chamber;ii) recording a signal representative of the variation over time of the position of the moving contact by means of a sensor disposed outside the interrupter chamber and mounted to detect movement of a drive rod; andiii) comparing the above signals with corresponding signals representative of reference operation of the high voltage electrical apparatus for the purpose of monitoring proper operation thereof or of detecting faulty operation of the electrical apparatus, particularly in the event of a valve in the interrupter chamber of the circuit breaker becoming jammed.

Abstract: A high voltage circuit breaker with insertion of resistance on closing, wherein the resistance is inserted by a fixed insertion electrode co-operating with the end of the moving main contact, the blast nozzle and the arcing contact of the moving assembly being secured to each other, and the subassembly being movable relative to the moving assembly so that on triggering, because of the inertia of said subassembly, the arcing contacts separate after the insertion electrode and the end of the moving main contact have moved sufficiently far apart.

Abstract: A puffer type gas breaker is provided, in which high-temperature gas, heated by an electric arc produced immediately after a large current is broken, is quickly discharged to enhance inter-pole dielectric performance. A fixing portion for fixing an arc contact is provided in a cylindrical exhaust pipe for exhausting the high-temperature gas heated by an electric arc produced between poles immediately after a large current is broken. A rectifying member or members is provided in the fixing portion of the cylindrical exhaust pipe. An exhaust port or ports is formed in the fixing portion of the cylindrical exhaust pipe, and a shield is disposed around the outer periphery of the exhaust port or ports.

Abstract: An electronic auxiliary contact for a contactor has at least one switch element controllable to the conducting and non-conducting states for the purpose of indicating the position of the contact bridging member in the contactor, and a switch-activating element mechanically connected to the contact bridging member and capable of activating the switch element. The switch-activating element incorporates at least one activating element, and the switch-activating element makes no mechanical contact with the switch element. The system provides a reliable method of monitoring the operation of a contactor.

Abstract: The present invention provides a simple, reliable, comprehensive electrical phase and amplitude fault detection and response system. The system includes means for detecting any of various electrical faults, such as impermissibly low voltage levels, impermissibly high voltage levels, phase dropouts, single-phasing, phase reversals, and/or total power loss. Further, the invention provides both fault detection and response customized to the plant equipment, providing power cut-off an appropriate time after a given fault is detected, and preventing premature power restoration when the line power has not been fully returned to normal. The system provides the fault detection and response functions without the need for electrical power of its own, avoiding dependence on line voltage, batteries or back-up generators. This functioning independent of the presence of electrical power is enabled through use of a pneumatic arrangement for interrupting power to plant equipment.

Abstract: A hydraulic operating apparatus for a circuit interrupter comprises a conversion unit for converting input information from the exterior concerning a speed control pattern into an electrical signal for driving a linear or servo motor according to the closing and interrupting commands, the motor drive signal provided from the converting means being transmitted to the motor such that the displacement of the motor causes the hydraulic control valve apparatus to be operated to switch the fluid passages to selectively drive the hydraulic cylinder in different directions, and that the position during the switching of the hydraulic control valve driven by the motor is made different from the final stop position at its interruption or closed state to provide a throttle effect of a throttle in the hydraulic control valve thereby controlling the speed of the hydraulic cylinder.

Abstract: The present invention relates to a generator concept by means of which, in particular, the effects of so-called nuclear electromagnetic pulses on electrical or electronic devices can be simulated by applying the so-called current injection technique. In the context of the generator concept according to the invention, in particular, a pneumatically controllable very fast spark gap is disclosed. Furthermore, a generator circuit having two spark gaps (40, 41) is disclosed which is capable of generating a voltage pulse having an amplitude which is four times as large as the voltage of its voltage supply. With the exception of the spark gaps, the components 42-49) of the generator circuit only need to be designed for the above voltage of the voltage supply with respect to their continuous loading. The generator circuit according to the invention, in particular in conjunction with the spark gap according to the invention, allows a very fast efficient pulse generator to be constructed.

Abstract: A manually-controlled, pneumatically-actuated electric motor starter and overload protection system wherein actuation and automatic overload protection are accomplished wholly pneumatically without any electromagnetic actuating circuitry so as to render the system more reliable and shockproof regardless of age or deterioration.