09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
Produits et services
Power supply systems for railway cars comprising auxiliary power units for supplying electrical power High voltge direct current (HVDC) power transmission products for electric power utility systems, namely, high voltage direct current (HVDC) converters, power transformers, gas insulated circuit breakers, vacuum circuit breakers, air insulated switchgear, gas insulated switchgear, flexible AC transmission systems (FACTS), voltage regulators, and volt/var power controls; uninterruptible electrical power supplies for industrial applications; nuclear power plant control systems comprising instrumentation and power controllers and computer network interfaces for monitoring systems; light emitting diode (LED) large-screen displays; power supply systems for railway cars comprising auxiliary power supplies; train control systems comprising electric on-board network controllers, on-board radio transmitter units, wayside radio transmitter units, and electric controllers for wayside equipment HVAC systems, namely, HVAC units for railway cars Structural parts of railway cars being propulsion systems comprising tractor motors, gear units, gear couplings, and silicon carbide (SiC) semiconductor power modules
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
Produits et services
Power supply systems for railway cars comprising auxiliary power units for supplying electrical power High voltage direct current (HVDC) power transmission products for electric power utility systems, namely, high voltage direct current (HVDC) converters, power transformers, gas-insulated circuit breakers, vacuum circuit breakers, air-insulated switchgear, gas-insulated switchgear, flexible AC transmission systems (FACTS), voltage regulators, and volt/var power controls; uninterruptible electrical power supplies for industrial applications; nuclear power plant control systems comprising instrumentation and power controllers and computer network interfaces for monitoring systems; light emitting diode (LED) large-screen displays; power supply systems for railway cars comprising auxiliary power supplies; train control systems comprising electric on-board network controllers, on-board radio transmitter units, wayside radio transmitter units, and electric controllers for wayside equipment HVAC systems, namely, HVAC units for railway cars Structural parts of railway cars being propulsion systems comprising tractor motors, gear units, gear couplings, and silicon carbide (SiC) semiconductor power modules
Disclosed are example embodiments of a dead tank circuit breaker for protecting electrical components against electrical surges and other voltage anomalies such as transient overvoltages. The circuit breaker includes: one or more vacuum interrupters; a current bypass circuit electrically coupled to the one or more vacuum interrupters; a dead tank encasing and hermetically sealing the one or more vacuum interrupters and the current bypass circuit, wherein the dead tank is pressurized with a non-SF6 gas; and a controllable mechanism coupled to the one or more vacuum interrupters and to the current bypass circuit. The controllable mechanism is configured to actuate the one or more vacuum interrupters and the current bypass circuit to open or close a main circuit path such that any pre-strike arcing occurs on the current bypass circuit instead of the one or more vacuum interrupters.
H01H 33/04 - Moyens pour éteindre ou empêcher des arcs entre organes traversés par le courant
H01H 33/59 - Circuits non adaptés à une application particulière de l'interrupteur et non prévus ailleurs, p. ex. pour assurer le fonctionnement de l'interrupteur en un point déterminé de la période du courant alternatif
H01H 33/664 - ContactsMoyens d'extinction d'arcs, p. ex. anneaux de garde
A system and method to selectively pass and damp oscillations in an electric power grid via a controller of a power electronic device irrespective of the modes of the power oscillations. The system and method includes multiple limiters having dynamic limits that are openable and closeable to control the response of the controller, damping ratio dynamic gain control logic that determines a dynamic gain for a control signal based on the oscillation characteristics of one or more input signals, and pulse counter logic to selectively control at least one of the limiters based on the pulse count of the control signal.
H02J 3/24 - Dispositions pour empêcher ou réduire les oscillations de puissance dans les réseaux
H02J 13/00 - Circuits pour pourvoir à l'indication à distance des conditions d'un réseau, p. ex. un enregistrement instantané des conditions d'ouverture ou de fermeture de chaque sectionneur du réseauCircuits pour pourvoir à la commande à distance des moyens de commutation dans un réseau de distribution d'énergie, p. ex. mise en ou hors circuit de consommateurs de courant par l'utilisation de signaux d'impulsion codés transmis par le réseau
G05B 19/042 - Commande à programme autre que la commande numérique, c.-à-d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
Disclosed are example embodiments of a switching terminal that can be rotated with minimal parts. The switching terminal can include: an inner portion configured to be securely or loosely attached to an external conductor element; and an outer portion configured to be rotatably affixed to the inner portion when then inner portion is loosely attached to the external conductor and to be tightly affixed to the inner portion when then inner portion is tightly attached to the external conductor.
H01H 9/52 - Refroidissement d'organes de l'interrupteur
H01H 33/02 - Interrupteurs pour haute tension ou courant fort comportant des moyens d'extinction ou de prévention des arcs Détails
H01R 13/514 - SoclesBoîtiers formés comme un bloc ou un assemblage modulaire, c.-à-d. composés de parties coopérantes pourvues de pièces de contact ou maintenant entre elles des pièces de contact
H01R 13/40 - Fixation des pièces de contact dans ou sur un socle ou un boîtierIsolement des pièces de contact
H01R 35/04 - Connecteurs de ligne pouvant tourner d'un angle de rotation limité
H01B 7/42 - Conducteurs ou câbles isolés caractérisés par la forme avec des dispositions pour la dissipation ou la conduction de la chaleur
09 - Appareils et instruments scientifiques et électriques
Produits et services
Large scale electronic displays, namely, large scale digital signage, electronic scoreboards, and LED displays; electrical controllers for large scale electronic displays; video processors for large scale electronic displays; light emitting diode displays
09 - Appareils et instruments scientifiques et électriques
Produits et services
Large scale electronic displays, namely, large scale digital signage, electronic scoreboards, and LED displays; electrical controllers for large scale electronic displays; video processors for large scale electronic displays; large scale light emitting diode displays
A utility power regulation system includes a power converter configured to regulate one or more of a voltage and a power factor at the primary side of a step-up transformer, or at a load electrically connected to a load feeder line, based on an estimated primary-side line voltage signal. The system includes a voltage estimation circuit configured to estimate the primary-side line voltage signal from one or more signals received from a secondary-side voltage sensor, regulator line current signal, and a primary-side load feeder-line current sensor.
A power converter controller for virtual impedance realization is provided that comprises: a sampling circuit configured to sample a real grid interface voltage at terminals of the power converter; a first operation block, which may be a subtractor, for performing a first operation on a reference voltage signal and the sampled real grid interface voltage signal of the power converter to generate a first voltage signal; a second operation block that may consist of a divider for dividing the first voltage signal by an amplification factor to generate a second voltage signal; and third operation block, which may be an adder, for adding the sampled real grid interface voltage signal to the second voltage signal, and a third voltage signal to generate a command voltage signal for realization at the DC-to-AC voltage conversion output, wherein the amplification factor is a real number greater than or equal to 1.
H02J 3/18 - Dispositions pour réglage, élimination ou compensation de puissance réactive dans les réseaux
H02M 7/5395 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs, p. ex. onduleurs à impulsions à un seul commutateur avec commande automatique de la forme d'onde ou de la fréquence de sortie par modulation de largeur d'impulsions
09 - Appareils et instruments scientifiques et électriques
Produits et services
Monitoring system for utility power stations comprising computer hardware, software, and cameras for monitoring and recording temperature, load data, gas density readings, and circuit breaker performance
14.
System and method for air motor recharging of spring mechanisms
A circuit breaker system having an electrical contact system, the electrical contact system includes one or more electrical contacts that are movable between a closed and an open position via a rechargeable spring loaded operating mechanism. An air motor recharging system includes an air motor operably coupled to the operating mechanism for recharging a closing spring. The air motor recharging system further comprises a solenoid valve that, when in an open position, supplies pressurized air to the air motor from a pressurized air storage tank at a preferred operating pressure sufficient to enable the air motor to drive a charging shaft and gear assembly to recharge a closing spring. The circuit breaker system further comprises an air compressor to delivers compressed air to the air storage tank to fill and maintain the storage tank at a preferred storage pressure.
H01H 33/32 - Dispositions à énergie incorporée dans l'interrupteur pour actionner le mécanisme moteur utilisant un mécanisme de commande à fluide pneumatique
H01H 3/30 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moteur à ressort
15.
Static synchronous compensator device and related method of phase balancing a three-phase power system
A static synchronous compensator device connected between a source and a load of a three-phase power system, comprising: a main feedback line configured to provide a main feedback signal from lines between the source and the load; a mixer configured to mix the main feedback signal with a balance function to generate a balanced signal; a signal controller configured to convert the balanced signal to a controlled signal; a gain circuit configured to multiply the controlled signal by −1 and to perform proportional gain and integral gain (P & I) processing on the controlled signal to generate an intermediate correction signal; and a pulse width modulator configured to apply a pulse width modulation pattern to modulate the voltage source inverter to generate an AC waveform that is applied to the lines between the source and the load.
H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques
H02J 3/18 - Dispositions pour réglage, élimination ou compensation de puissance réactive dans les réseaux
H02M 1/00 - Détails d'appareils pour transformation
H02M 5/22 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases sans transformation intermédiaire en courant continu par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
H02M 5/257 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant alternatif, p. ex. pour changement de la tension, pour changement de la fréquence, pour changement du nombre de phases sans transformation intermédiaire en courant continu par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type thyratron ou thyristor exigeant des moyens d'extinction utilisant uniquement des dispositifs à semi-conducteurs
16.
SAFETY SYSTEM FOR A NUCLEAR POWER PLANT AND METHOD FOR OPERATING THE SAME
A safety system (100) for a nuclear power plant includes first through fourth sensors (S1, S4, S7, S10); a first division (110), including a first calculation module (120) that determines first and second calculation results (DA) based on signals from the first and second sensors (S1, S4), a first data-sharing module (123) for sharing the first and second calculation results (DA) with a second division (115), and a first voting logic (126) for generating a first safety demand signal based on the first through fourth calculation results (DA, DB).
G06F 11/16 - Détection ou correction d'erreur dans une donnée par redondance dans le matériel
G06F 19/00 - Équipement ou méthodes de traitement de données ou de calcul numérique, spécialement adaptés à des applications spécifiques (spécialement adaptés à des fonctions spécifiques G06F 17/00;systèmes ou méthodes de traitement de données spécialement adaptés à des fins administratives, commerciales, financières, de gestion, de surveillance ou de prévision G06Q;informatique médicale G16H)
17.
Safety system for a nuclear power plant and method for operating the same
A safety system for a nuclear power plant includes first through fourth sensors; a first division, including a first calculation module that determines first and second calculation results based on signals from the first and second sensors, a first data-sharing module for sharing the first and second calculation results with a second division, and a first voting logic for generating a first safety demand signal based on the first through fourth calculation results; and the second division, including a second calculation module for determining the third and fourth calculation results based on signals from the third and fourth sensors, a second data-sharing module for sharing the third and fourth calculation results with the first division, and a second voting logic for generating a second safety demand signal based on the first, second, third, and fourth calculation results, wherein the first through fourth sensors each monitor the same plant parameters.
G21C 17/10 - Combinaison structurelle de l'élément combustible, de la barre de commande, du cœur du réacteur, ou de la structure du modérateur avec des instruments sensibles, p. ex. pour la mesure de la radioactivité, des contraintes
A circuit breaker, or transformer, or insulated bus for use with AC voltages greater than 30 kilovolts and AC currents greater than 400 amperes includes an elongated bushing made from electrically insulating material and having first and second ends. The first end of the bushing is coupled to a main enclosure of the circuit breaker, or transformer, or insulated bus and a terminal pad is coupled to the second end of the bushing. A conductor is disposed in an internal cavity of the bushing in spaced relation to an internal wall of the bushing that defines the internal cavity. The conductor includes first and second segments. A first end of the first segment is electrically connected to a contact of the circuit breaker, or transformer, or insulated bus and a first end of the second segment is electrically connected to the terminal pad. Second ends of the first and second segments are coupled together with a biasing element interposed between the second ends of the first and second segments. The biasing element is operative for biasing the first end of the first segment toward the contact and for biasing the first end of the second segment toward the one terminal pad.
A gas density monitoring system for high voltage gas circuit breakers. The gas density monitoring system comprising a gas density device mounted directly on a circuit breaker tank end cover. When the gas density device is fully secured to the tank end cover, the gas density device works in conjunction with a self-sealing valve body to provide a self-sealing, direct pathway between the pressurized tank and a sensing element of the gas density device. This pathway permits the gas density device to sense the circuit breaker tank pressure via an angled port through the tank end cover that limits pressure transients that may result from the normal operation of the circuit breaker. The gas density device contact settings may be verified without removal of the density device from the gas circuit breaker or venting the enclosed gas inside the gas circuit breaker to the atmosphere.
09 - Appareils et instruments scientifiques et électriques
Produits et services
Electronic displays, namely, digital signage; electronic scoreboards; LED large-screen displays; controllers for electronic displays; video processors for electronic displays
A circuit breaker is provided having three horizontal circuit breakers coupled together with a base housing. Each of the horizontal circuit breakers comprising a tank secured in the housing, first and second current transformers extending from the tank and exit and entrance insulators extending from the first and second current transformers. The housing is mountable on a support frame. To facilitate shipping and field assembly, the circuit breaker includes an control panel moveably coupled to the housing.
