09 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
12 - Land, air and water vehicles; parts of land vehicles
Goods & 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 - Scientific and electric apparatus and instruments
11 - Environmental control apparatus
12 - Land, air and water vehicles; parts of land vehicles
Goods & 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 - Means for extinguishing or preventing arc between current-carrying parts
H01H 33/59 - Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the AC cycle
H01H 33/664 - ContactsArc-extinguishing means, e.g. arcing rings
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 - Arrangements for preventing or reducing oscillations of power in networks
H02J 13/00 - Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the networkCircuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
G05B 19/042 - Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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 33/02 - High-tension or heavy-current switches with arc-extinguishing or arc-preventing means Details
H01R 13/514 - BasesCases formed as a modular block or assembly, i.e. composed of co-operating parts provided with contact members or holding contact members between them
H01R 13/40 - Securing contact members in or to a base or caseInsulating of contact members
H01R 35/04 - Turnable line connectors with limited rotation angle
H01B 7/42 - Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
09 - Scientific and electric apparatus and instruments
Goods & 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 - Scientific and electric apparatus and instruments
Goods & 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 - Arrangements for adjusting, eliminating or compensating reactive power in networks
H02M 7/5395 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
09 - Scientific and electric apparatus and instruments
Goods & 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.
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 5/22 - 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 without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
H02M 5/257 - 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 without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
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 - Error detection or correction of the data by redundancy in hardware
G06F 19/00 - Digital computing or data processing equipment or methods, specially adapted for specific applications (specially adapted for specific functions G06F 17/00;data processing systems or methods specially adapted for administrative, commercial, financial, managerial, supervisory or forecasting purposes G06Q;healthcare informatics 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 - Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
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 - Scientific and electric apparatus and instruments
Goods & 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.
