G01R 21/133 - Arrangements for measuring electric power or power factor by using digital technique
G01R 22/06 - Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
G01R 22/10 - Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
G01D 3/08 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
G06F 9/30 - Arrangements for executing machine instructions, e.g. instruction decode
G06F 9/44 - Arrangements for executing specific programs
G06F 12/084 - Multiuser, multiprocessor or multiprocessing cache systems with a shared cache
G06F 12/0875 - Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches with dedicated cache, e.g. instruction or stack
G06F 12/14 - Protection against unauthorised use of memory
A busway for power distribution to equipment positioned in information technology racks includes a plurality of locations in the busway suitably being configured to receive a plurality of detachably engageable taps. The busway, which are external to the information technology racks, includes a plurality of segments, each of which are detachably engaged with one another and including at least one of the plurality of locations. The busway provides power to the information technology racks by respective taps, where each of the taps includes a respective electrical sensor that senses at least one of a voltage level and a current level. Each of the electrical sensors providers an output signal to a computing device.
H02H 3/00 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
H01R 25/14 - Rails or bus-bars constructed so that the counterparts can be connected thereto at any point along their length
H05K 7/14 - Mounting supporting structure in casing or on frame or rack
G06F 1/26 - Power supply means, e.g. regulation thereof
G01R 21/06 - Arrangements for measuring electric power or power factor by measuring current and voltage
A busway for power distribution to equipment positioned in information technology racks includes a plurality of locations in the busway suitably being configured to receive a plurality of detachably engageable taps. The busway, which are external to the information technology racks, includes a plurality of segments, each of which are detachably engaged with one another and including at least one of the plurality of locations. The busway provides power to the information technology racks by respective taps, where each of the taps includes a respective electrical sensor that senses at least one of a voltage level and a current level. Each of the electrical sensors providers an output signal to a computing device.
G01D 3/08 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
H02H 5/04 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal temperature
G08C 19/02 - Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
A system for energy metering with temperature monitoring that includes a plurality of current sensors, suitable to sense a changing current in a respective power cable, that provide a respective first output. The energy metering system includes a support and current sensors interconnected to the support at spaced apart locations along the support. A temperature sensor that provides a second output and is interconnected to the support. The energy metering system receives the respective first output and the second output and determines characteristics of the energy system based upon the second output.
G01R 21/133 - Arrangements for measuring electric power or power factor by using digital technique
G01R 22/06 - Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
G01R 22/10 - Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
G01D 3/08 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group with provision for safeguarding the apparatus, e.g. against abnormal operation, against breakdown
A sensor for detecting voltage of a power cable includes a housing configured to be coupled around at least a portion of the power cable. A first conductive element supported by the housing is configured to be electrically coupled to the power cable when the housing is coupled around at least a portion of the power cable. A first capacitive element supported by the housing is electrically interconnected with the first conductive element. A second capacitive element supported by the housing is electrically interconnected with the first conductive element. A processor determines a cable capacitance of the power cable based upon alternatively sensing an electrical characteristic (i) the first capacitive element and the second capacitive element and (ii) the first capacitive element without the second capacitive element. The sensor determines the voltage of the power cable based upon the determined cable capacitance.
G01R 15/16 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using capacitive devices
G01R 27/26 - Measuring inductance or capacitanceMeasuring quality factor, e.g. by using the resonance methodMeasuring loss factorMeasuring dielectric constants
G01R 15/06 - Voltage dividers having reactive components, e.g. capacitive transformer
G01R 15/14 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
A phase aligned energy metering system includes a plurality of current sensors that provide a respective first signal indicating respective the current levels. A current module connected to the plurality of current sensors and processing the first signal with a stored current sensor error correction data to output a first corrected signal. A non- contact voltage providing a respective second signal indicating respective the voltage levels. The non-contact voltage sensor provides a second respective signal. A contact voltage sensor provides a respective third signal indicating respective the voltage levels. A voltage module receives the third respective signal indicating the respective voltage levels and processing the third signal with a stored voltage sensor error correction data to output a third corrected signal. An energy meter receives the first respective signal, the second respective signal, and the third respective signal, and determines a power level.
F16L 41/00 - Branching pipesJoining pipes to walls
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
G01L 19/00 - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
F24F 110/00 - Control inputs relating to air properties
A sensing unit with an enclosure senses an environmental parameter that includes an environmental sensor to sense the environmental parameter. A processor enclosed within the enclosure receives a sensor signal from the environmental sensor related to the environmental parameter. A wireless communication circuit enclosed within the enclosure receives data from the processor for being transmitted wirelessly related to the environmental parameter. The wireless communication circuit is configured to wirelessly transmit the received data from the processor. The processor and the wireless communication circuit, including the wireless communication circuit wirelessly transmitting the received data, only receives power from a 4-20 ma input signal to the sensing unit from a remote controller.
G01L 19/00 - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
G08C 17/02 - Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
G01R 21/133 - Arrangements for measuring electric power or power factor by using digital technique
G01R 21/00 - Arrangements for measuring electric power or power factor
G01R 27/26 - Measuring inductance or capacitanceMeasuring quality factor, e.g. by using the resonance methodMeasuring loss factorMeasuring dielectric constants
G01R 21/06 - Arrangements for measuring electric power or power factor by measuring current and voltage
A system for calibrating a power meter may include mechanically detachably electrically engaging a first power meter with a second power meter. The first power meter may receive a first current input signal representative of a current level in a first conductor to a load and receive a first voltage input signal representative of a voltage level in the first conductor, and determine a first power level based upon the first current input signal and the first voltage input signal. A second power meter may receive a second current input signal representative of the current level in the first conductor to the load from the first power meter, receive a second voltage input signal representative of the voltage level in the first conductor to the load from the first power meter, and determine a second power level based upon the second current input signal and the second voltage input signal.
G01R 35/00 - Testing or calibrating of apparatus covered by the other groups of this subclass
H04L 12/825 - Adaptive control, at the source or intermediate nodes, upon congestion feedback, e.g. X-on X-off
G01R 35/04 - Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
H04L 12/24 - Arrangements for maintenance or administration
G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
G01R 27/08 - Measuring resistance by measuring both voltage and current
G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
G01R 21/06 - Arrangements for measuring electric power or power factor by measuring current and voltage
G01R 17/12 - AC or DC measuring bridges using comparison of currents, e.g. bridges with differential current output
H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
H04L 29/08 - Transmission control procedure, e.g. data link level control procedure
G01R 21/133 - Arrangements for measuring electric power or power factor by using digital technique
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G06F 1/16 - Constructional details or arrangements
G06F 1/26 - Power supply means, e.g. regulation thereof
G06F 1/3203 - Power management, i.e. event-based initiation of a power-saving mode
09 - Scientific and electric apparatus and instruments
Goods & Services
Computer hardware and software system for remotely monitoring environmental conditions and controlling devices within a building, facility, grounds, or designated spatial area; Computer software to monitor and control factory manufacturing processes; Electronic devices, namely, energy submeters for tracking and monitoring energy usage; Electronic monitors and monitor modules for monitoring electric current and electrical signals
A transformer for monitoring current in a power cable is magnetically linked with the power cable connected to the electrical device, where the transformer produces a changing transformer signal in response to the presence of a changing current within the power cable. An input circuit located proximate to the transformer and having an output terminal and being electrically connected to the transformer so as to receive the changing transformer signal. The input circuit produces, in response to receiving the changing transformer signal, one of a first signal representative of the changing current, and a first circuit condition at the output terminal of the input circuit representative of the changing current in the power cable. The input circuit includes an impedance set having an effective impedance that comprises a plurality of elements, wherein at least one of the elements is not electrically connected to the remaining the plurality of elements.
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
A sensing transformer includes a first transformer segment including a first magnetically permeable core having a sector having a planar cross-section bounded by a closed curve and having a first end and a second end. The first core includes a winding including at least one turn substantially encircling the cross-section of the core and a first segment housing enclosing the winding and a portion of the first core. A second transformer segment separable from the first transformer segment including a second magnetically permeable core having another sector having a third end and a fourth end.
A split core sensing transformer comprises a first core portion and a second core portion joined to the first core portion for pivoting relative to the first core portion about a first axis and for rotation relative to the first core portion about a second axis substantially normal to said first axis.
A first housing portion of a split core sensing transformer includes a guide element arranged to engage a guide surface of a separable second housing portion and to control rotation and translation of the housing portions to align the housing portions during joining.
09 - Scientific and electric apparatus and instruments
Goods & Services
Electronic devices, namely, energy submeters for tracking and monitoring energy usage; electronic monitors and monitor modules for monitoring electric current and electrical signals [ ; telecommunications hardware and software for monitoring and alerting remote sensor status via the Internet; voltage monitor modules; wireless remote temperature and humidity monitors for building maintenance ]
G01N 27/12 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon absorption of a fluidInvestigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon reaction with a fluid
G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
Improvements in a system to connect and multiplex sensor signals that connects and multiplexes sensor signals is disclosed. The number of plug connections may line up and match the number of circuit breakers on one side of a panel. The device installs on panel board configurations to gathers precise power information for amps, volts, power factor, watts and kWh—and provides utility-grade data on each branch circuit metering. Up to 4 panel board strips per units of 4, 8 or 21 can be connected together to monitor 120 circuits. The system is adaptable to three phase monitoring and ground fault measurement and monitoring which is not conveniently provided by existing hard wired systems. The number of plug connections may line up with and match the number of circuit breakers on one side of the panel.
G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
A current switch self-calibrates when a reset control is actuated and displays an expected current in the monitored conductor, one or more trip points of the current switch and the last known current in the monitored conductor.
H01H 71/12 - Automatic release mechanisms with or without manual release
H01H 71/74 - Means for adjusting the conditions under which the device will function to provide protection
G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
H02H 3/00 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
H01H 71/00 - Details of the protective switches or relays covered by groups
A current switch that can be reset when it is not powered automatically calibrates itself when the circuit monitored by the current switch is energized.
F04D 25/08 - Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
H02P 27/04 - 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
H02P 29/02 - Providing protection against overload without automatic interruption of supply
G01R 1/00 - Details of instruments or arrangements of the types covered by groups or
G01N 1/00 - SamplingPreparing specimens for investigation
A method of configuring a power meter may include comparing a maximum power measurable by the power meter to a pulse output power comprising a pulse having an initial pulse weight and an initial pulse duration. The power meter may change at least one of the pulse weight and the pulse duration until the pulse output power is at least equal to the maximum power measurable by the power meter.
G01R 21/133 - Arrangements for measuring electric power or power factor by using digital technique
G01R 35/04 - Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
The quantity of data stored in a branch circuit monitor and accessible by a data processing network is increased by logically dividing the monitor's memory into a plurality of registers each comprising a plurality of pages and addressing a page containing the desired data with an address corresponding to the identity of a page number stored in a page register and the identity of the register.
The flexibility of a branch circuit monitor is improved by a signal conditioning unit that outputs a voltage in response to an input voltage and which is configurable to output the same range of output voltages in response to input voltages varying over different ranges.
G01R 1/30 - Structural combination of electric measuring instruments with basic electronic circuits, e.g. with amplifier
G01R 17/16 - AC or DC measuring bridges with discharge tubes or semiconductor devices in one or more arms of the bridge, e.g. voltmeter using a difference amplifier
G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof
G01R 19/25 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G01R 21/133 - Arrangements for measuring electric power or power factor by using digital technique
The accuracy and flexibility of a branch circuit monitor is improved by storing specifications, including error correction factors, for a plurality of current transformers in the monitor's memory and enabling current transformers with stored specifications to be selected for use with the monitor.
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)
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G01R 21/133 - Arrangements for measuring electric power or power factor by using digital technique
G01R 22/06 - Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
G01R 19/165 - Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
G01R 19/25 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof using digital measurement techniques
G01R 35/04 - Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
G01R 15/14 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
A phase canceling current transducer for a power meter includes an error correction unit including a memory for storing error correction factors. A data processing device of the error correction unit adjusts the output of the transducer to correct for phase and ratio errors produced by the transducer current transformer or to cause the transducer's output to mimic the output of another current transducer.
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)
H02B 1/04 - Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G01R 11/04 - HousingsSupporting racksArrangements of terminals
H01H 9/22 - Interlocking, locking, or latching mechanisms for interlocking between casing, cover, or protective shutter and mechanism for operating contacts
H01H 9/26 - Interlocking, locking, or latching mechanisms for interlocking two or more switches
H01H 11/00 - Apparatus or processes specially adapted for the manufacture of electric switches
A tool for configuring a branch current monitor facilitates mapping the connections of branch circuits to voltage sources in a power distribution panel.
G01R 25/00 - Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
G01R 7/00 - Instruments capable of converting two or more currents or voltages into a single mechanical displacement
G01R 1/00 - Details of instruments or arrangements of the types covered by groups or
G01R 31/08 - Locating faults in cables, transmission lines, or networks
G01R 31/00 - Arrangements for testing electric propertiesArrangements for locating electric faultsArrangements for electrical testing characterised by what is being tested not provided for elsewhere
G01R 21/00 - Arrangements for measuring electric power or power factor
H02H 3/00 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
H02H 9/04 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
44.
Externally reporting branch power monitoring system
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G01R 1/20 - Modifications of basic electric elements for use in electric measuring instrumentsStructural combinations of such elements with such instruments
A power monitoring system that reduces the need for transient voltage suppressors while using current transformers on an associated support operating using a current mode.
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
A meter for measuring electric power consumed by a plurality of branch circuits includes interchangeable current transformers including respective transformer memories for storage of transformer characterization data and enables self-discovery of a phase shift induced by respective current transformers and the phase of current conducted by each branch circuit.
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
A power meter for monitoring current in a power cable annunciates an alarm if the current transgresses one or more alarm current limits. False alarms are avoided by delaying the activation of the alarm for a delay interval following determination that current is flowing in the monitored conductor.
09 - Scientific and electric apparatus and instruments
Goods & Services
electric current sensors, electrical power sensors, and environmental sensors, namely, humidity sensors, temperature sensors, carbon dioxide sensors, carbon monoxide sensors, and moisture sensors, for use in building automation applications and industrial process control applications, and power monitors, for use in monitoring operation of electrically powered devices and in managing power use in systems including multiple electrically powered devices
49.
Branch meter with configurable sensor strip arrangement
A power monitoring system configurable to monitor electrical energy sensed by multiple sensors of one or more sensor arrays which may be organized in one of several array arrangements.
The size of a status indicator for monitoring a current in a power cable is reduced by integrating a bobbin for the secondary winding with a current transformer core and integrating a circuit board including output terminals with a current transformer assembly.
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
The sensitivity and accuracy of a status indicator for sensing a current in an electrical circuit is improved by shifting the reference level of the transformer output to maximize the input signal to a precision voltage detector and by reducing the hysteresis of the status indicator by balancing the burden of the current transformer during the positive and negative alternations of the AC signal and by driving secondary loads with a voltage to current converter.
A duct mounted environmental sensing unit includes a plurality of sensors for detecting respective parameters of a fluid in a duct. The sensing unit enables at least three sensors to make contact with the fluid through a single insertion point in the duct.
A housing for one or more electrical components that are connected to sources of a plurality of voltages comprises a box, a first cover to cover a first portion of the opening in the box and a second cover to cover a second portion of the opening. The first cover includes a separator that projects into the box when the first cover is installed to divide the interior of the box and so that components connectable to a higher voltage can be separated from components connectable to a lower voltage.
A duct-mountable sensing unit includes a plurality of sensors for detecting respective parameters, including pressure, of a fluid in a duct. The sensing unit enables fluid communication between the sensors and the fluid in the duct through a single insertion point in the duct.
G01F 1/34 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
G01D 21/02 - Measuring two or more variables by means not covered by a single other subclass
Arranging and conducting incentive reward programs to promote the sale of electric current sensors, electrical power sensors, and environmental sensors
Arranging and conducting incentive reward programs to promote the sale of electric current sensors, electrical power sensors, and environmental sensors
09 - Scientific and electric apparatus and instruments
Goods & Services
electric current sensors, electrical power sensors, and environmental sensors, namely, humidity sensors, temperature sensors, carbon dioxide sensors, carbon monoxide sensors, and moisture sensors, for use in building automation applications and industrial process control applications, and power monitors, for use in monitoring operation of electrically powered devices and in managing power use in systems including multiple electrically powered devices
09 - Scientific and electric apparatus and instruments
Goods & Services
electric current sensors, electrical power sensors, and power monitors, for use in monitoring operation of electrically powered devices and in managing power use in systems including multiple electrically powered devices
A modular metering system comprises a data processing module, a current module and a voltage module. The current and voltage modules include sensor memories characterizing the respective current and voltage sensors facilitating assembly and repair of the metering system.
Low threshold current switch comprising a sensing transformer, a voltage multiplier and a switch enables monitoring a very low electric current in a power cable.
G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
G01R 31/08 - Locating faults in cables, transmission lines, or networks
The computational resources of a digital power meter can be reduced by utilizing an interrupt requested in anticipation of interrupt latency to perform real-time tasks, an approximation of a root mean square load current at an earlier time to compensate for a phase shift between the load current and the current transducer output, and an amplitude that is neither zero nor maximum to distinguish the cycles of a harmonically distorted waveform.
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)
A status indicator indicates an operating state, including an electrical malfunction, of an electrical load that is located and controlled from locations remote from a monitoring location.
G08B 21/00 - Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
G01R 15/18 - Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
G01R 31/08 - Locating faults in cables, transmission lines, or networks
H02H 3/00 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection
H02H 3/08 - Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition, with or without subsequent reconnection responsive to excess current
H02H 9/02 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
09 - Scientific and electric apparatus and instruments
Goods & Services
Electric current sensors, electrical power sensors, power monitors, [ and transducers ] for such sensors and monitors, for use in monitoring operation of electrically powered devices and in managing power use in systems including multiple electrically powered devices
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
Goods & Services
(1) Electric current sensors, electrical power sensors, and power monitors, for use in monitoring operation of electrically powered devices and in managing power use in systems including multiple electrically powered devices.
09 - Scientific and electric apparatus and instruments
Goods & Services
(1) Electric current sensors, electrical power sensors, and power monitors, for use in monitoring operation of electrically powered devices and in managing power use in systems including multiple electrically powered devices.
09 - Scientific and electric apparatus and instruments
10 - Medical apparatus and instruments
Goods & Services
(1) Electric current sensors, electrical power sensors, and power monitors, for use in monitoring operation of electrically powered devices and in managing power use in systems including multiple electrically powered devices.
09 - Scientific and electric apparatus and instruments
Goods & Services
electric current sensors, electrical power sensors, and power monitors, for use in monitoring operation of electrically powered devices and in managing power use in systems including multiple electrically powered devices
