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67results about How to "Avoid wiring errors" patented technology
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Solar box and two position solar connectors
InactiveUS7914298B2Avoid wiring errorsEngine sealsRelieving strain on wire connectionEngineeringElectrical connector
Owner:TE CONNECTIVITY CORP
Solar box and two position solar connectors
InactiveUS20100093231A1Avoid wiring errorsEngine sealsRelieving strain on wire connectionElectricityEngineering
A connecting box, gland nut, and electrical connector for the solar connector industry is disclosed. The connecting box, the gland nut, and the electrical connector require a tool to disengage, are being resistant to external environmental stressors, and / or provide the ability to monitor information regarding the connecting box, the gland nut, and / or the electrical connector.
Owner:TE CONNECTIVITY CORP
Intelligent transformer station relay protection testing system and method and realization method
ActiveCN104749466ALow level of professionalism requiredLow proficiency requirementElectrical testingGraphicsManagement unit
The invention provides an intelligent transformer station relay protection testing system and method and a realization method. The testing system comprises a graph user interface, a model and parameter management unit, a collected data analysis unit, a realtime digital simulation unit and a simulated data conversion unit, the model and parameter management unit is connected with a graph interface unit, the collected data analysis unit is connected with the graph interface unit and used for analyzing collected data, converting the collected data into a format needed by corresponding state information in a model and transmitting the collected data to the realtime digital simulation unit, and the simulated data conversion unit is connected with the graph interface unit and the realtime digital simulation unit respectively. The intelligent transformer station relay protection testing system and method and the realization method have the advantages that construction period is short, cost is lowered, requirements on professional level and proficiency of testing personnel are low, and configuration and wiring errors in the process of intelligent transformer station relay protecting site assembly can be avoided.
Owner:广州穗华能源科技有限公司
Air conditioning system and communication method thereof
ActiveCN104279719AAvoid mistakesResolve interferenceMechanical apparatusSpace heating and ventilation safety systemsTelecommunicationsWired communication
The invention discloses an air conditioning system and a communication method of the air conditioning system. The air conditioning system comprises an indoor unit and an outdoor unit. The indoor unit comprises a first wireless communication module. The outdoor unit comprises a second wireless communication module. The second wireless communication module is in communication with the first wireless communication module. One of the indoor unit and the outdoor unit is a host. The other one of the indoor unit and the outdoor unit is a slave. The host and the slave complete handshake through one of at least one shared channel. One of multiple work channels is selected by the host to be used as the work channel between the host and the slave, the work channel is transmitted to the slave from one of the shared channel, and therefore the host and the slave conduct communication through the selected work channel. By the adoption of the air conditioning system and a communication method of the air conditioning system, wireless communication between the indoor unit and the outdoor unit of the air conditioner is achieved, the problems that when wire communication is adopted, efficiency is low, the fault rate is high, and energy is wasted are solved, and the problem of channel disturbance caused during wireless communication is also solved.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD
Rotary transformer wiring self-detection system
ActiveCN110794343ALow costAvoid errorsElectric connection testingTransformers testingSignal conditioning circuitsElectric machine
The invention relates to the technical field of permanent magnet synchronous motor control, in particular to a rotary transformer wiring self-detection system. The system comprises a DSP controller, an excitation signal amplifying and filtering circuit, a rotary transformer and a sine and cosine signal conditioning circuit, wherein a program part of the DSP controller comprises an all-digital RDCdecoding module, a wiring order recognition module and a motor control algorithm part. Through a rotary transformer wiring self-detection method, an actual wiring order can be identified through the wiring order recognition module under the situation that the wiring order of the rotary transformer is wrong, the current wiring order is subjected to automatic compensation to discriminate the deviation of a rotor position from an actual rotor position, so that a permanent magnet synchronous motor is normally started and run, the situation that debugging personnel spend a large amount of time andeffort searching for a wiring error of the rotary transformer on site is avoided, and field debugging efficiency is improved. The system is also suitable for all permanent magnet synchronous motor application occasions where the rotary transformer is used as a position sensor.
Owner:CRRC YONGJI ELECTRIC CO LTD
GFCI that cannot be reset until wired correctly on line side and power is applied
InactiveUS20070188949A1Avoid wiring errorsAvoid settingSwitch operated by earth fault currentsEmergency protective arrangements for limiting excess voltage/currentElectricityElectrical contacts
Owner:HUBBELL INC
High voltage electric energy meter with metering unit capable of being charged to replace
ActiveCN104122526AFacilitate on-site inspectionEasy to compareTime integral measurementEngineeringInductor
The invention is applicable to the technical field of electric energy meters, and provides a high voltage electric energy meter with metering unit capable of being charged to replace. The high voltage electric energy meter with metering unit comprises a combined mutual inductor fixedly installed on a rack, wherein the A phase side of the combined mutual inductor is provided with an A phase connector, and the C phase side of the combined mutual inductor is provided with a C phase connector, and the output terminals of the combined mutual inductor are respectively led out to the A phase connector and the C phase connector; the high voltage electric energy meter also comprises an A phase metering unit inserted into the A phase connector and a C phase metering unit inserted into the C phase connector, when the A and C phase metering unit are inserted into the corresponding phase connectors, terminals on the metering units are correspondingly contacted with the output terminals of the combined mutual inductor, for receiving current and voltage output by the combined mutual inductor. The metering unit in the high voltage electric energy meter provided by the invention can be charged to replace, thus being beneficial to field inspection, comparison and replacement of maintainers and shortening field inspecting time.
Owner:WUHAN GUOCE HENGTONG INTELLIGENT INSTR
Charged pluggable high voltage electric energy metering device and method
InactiveCN103941051AEasy to install on siteConvenient inspectionTime integral measurementControl engineeringCharge detection
The invention provides a charged pluggable high voltage electric energy metering device which comprises a combined mutual inductor fixedly arranged on a metering cabinet back plate, a main metering drawer and an auxiliary metering drawer. A first A-phase electric energy metering component and a first C-phase electric energy metering component are arranged on the main metering drawer and form a main meter metering device together. A second A-phase electric energy metering component and a second C-phase electric energy metering component are arranged on the auxiliary metering drawer and form an auxiliary meter metering device together. The invention further provides a charged pluggable high voltage electric energy metering method. The structural mode of the metering drawers is adopted, and field mounting, detection, comparison and replacement of a user are facilitated better. Double-metering-drawer design is adopted, a standard meter can carry out charged detection on a main meter conveniently, the device and method can be used for field metering and comparison on the main meter and an auxiliary meter, the aim of metering data redundancy is achieved, and data are safer and easier to restore.
Owner:WUHAN GUOCE HENGTONG INTELLIGENT INSTR
Simple faulted electric energy meter test method and device
The invention relates to a simple faulted electric energy meter test method and belongs to the technical field of power supply inspection and maintenance. According to the technical scheme, the detection is carried out in electrification, a detection lamp holder is used to simulate loads under an electric energy meter, the detection lamp holder is serially connected to a pincerlike ampere meter, and is connected between a load firing line leading-out terminal and a load null line leading-out terminal; a timer is matched with the pincerlike ampere meter; the pulse time per minute of the normal electric energy meter is equal to a pulse constant multiplied by 0.1 and divided by 60, the pincerlike ampere meter is held in a right hand to observe a current value, and the timer is held in a left hand to observe the operation condition of the ammeter, if the error of the detected pulse number per minute is more than once, then the electric energy meter is judged to be faulted. The simple faulted electric energy meter test method and device has the advantages that the faulted meter can be found visually and fast, and working efficiency is improved; the method and device is simple in operation, easy to master, and capable of guaranteeing the accuracy and greatly avoiding wiring errors caused by dismantling of the electric energy meter; power failure time is shortened, complaint of users is reduced, and workload of workers is reduced.
Owner:STATE GRID CORP OF CHINA +1
Device for manufacturing wire for secondary connection
ActiveCN102916324AAvoid wiring errorsSave wiring timeLine/current collector detailsCross connectionTrunking
The invention discloses a device for manufacturing a wire for secondary connection. The device comprises a baseplate, a first wiring board and a second wiring board, wherein the first wiring board and the second wiring board are slidably and parallelly arranged on the baseplate; a gap formed between the first wiring board and the second wiring board serves as a wiring arranging slot; a plurality of trunkings are respectively arranged on the faces of the first wiring board and the second wiring board, deviated from the baseplate; and the arrangement modes of the trunkings on the first wiring board and the second wiring board are the same. The first wiring board and the second wiring board can slide on the baseplate, and are provided with the trunkings, so that if wires arranged by the device are used for being connected with an ammeter, the wire arrangement is standard, and a wiring error caused by cross connection of circuits can be avoided while repetitive inspection is prevented, accordingly, the wiring time is saved and the work efficiency is improved.
Owner:DEYANG POWER SUPPLY COMPANY STATE GRID SICHUAN ELECTRIC POWER +1
Vswr measurement device
InactiveCN1896751AHelp wiringCorrect wiringPower managementResistance/reactance/impedenceCdma signalBaseband
The invention relates to a VSWR measurement device 1 for OFDM signal, in particular CDMA signals, comprising a radio frequency switch 3, a unit 4 for converting the signal from the RF switch into the digital baseband, means 6 for extracting a pilot signal out of a multitude of / OFDM / CDMA signals, a timing unit 5 and a code generator 7 associated with said extraction means, a controller 8.
Owner:EVOLIUM
Integrated power-frequency voltage-withstand test device
InactiveCN110308390AReduce test complexityReduce security risksCircuit interrupters testingTest efficiencyMeasurement device
The invention relates to an integrated power-frequency voltage-withstand test device. The integrated power-frequency voltage-withstand test device comprises a voltage adjustor, a test transformer anda control system; the voltage adjustor is connected with an external power supply, and outputs adjustable base voltage signals; the test transformer is connected with the voltage adjustor, and outputs0-50 kV test voltage signals based on the base voltage signals; the control system is used for controlling the voltage adjustor and a power-frequency voltage-withstand test process; the voltage adjustor, the test transformer and the control system are integrated together, and arranged in a shell; a vacuum circuit breaker is connected with the test transformer; a voltage equalizing ring used for preventing corona discharge is installed on the top of the test transformer; the integrated power-frequency voltage-withstand test device further comprises a voltage measurement device, an over-currentprotection device and an over-voltage protection device; and the voltage measurement device is used for measuring the voltage of test voltage signal output by the test transformer. The integrated power-frequency voltage-withstand test device in the invention satisfies actual engineering requirements, can reduce the test complexity, avoid the wiring error, increase the test efficiency and reduce apotential safety hazard, and suitable for a power-frequency voltage-withstand test of the vacuum circuit breaker with the voltage level of 20 kV and below.
Owner:JIANGSU ELECTRIC POWER CO
Reactive power compensation algorithm for solving low-load reactive power over-compensation and under-compensation problems
ActiveCN107591818AReduce reactive power upper and lower limit settingsHigh degree of automationReactive power adjustment/elimination/compensationReactive power compensationCapacitanceLower limit
The invention discloses a reactive power compensation algorithm for solving low-load reactive power over-compensation and under-compensation problems. When the reactive power is less than or equal tozero, capacitors are cut off from small to large until the reactive power is recovered and an over-compensation state is eliminated; and if all capacitors are not put into practice and the reactive power is still negative, a phase sequence error is determined and wiring has a problem. On the contrary, when the reactive power is greater than zero, if the power factor is in a set range, the system is determined to be normal; otherwise, the capacitors are put from large to small until the current reactive power is less than the minimum capacitance or no capacitor is put, so that a system stable state is realized. Therefore, setting of a reactive upper limit and a reactive lower limit is reduced; whether switching is carried out is determined automatically by the device based on parameters, sothat the automation degree is high; over compensation and under compensation of reactive power on the low-load condition are avoided; and whether the phase sequence is correct is determined automatically and thus a wiring error of a sampling signal is avoided.
Owner:烟台海珐电气科技有限公司
Low-voltage circuit dynamic reactive power compensation device and low-voltage circuit reactive power compensation method
InactiveCN105515015AFirmly connectedQuick installationReactive power adjustment/elimination/compensationPower oscillations reduction/preventionLow voltage circuitsPower compensation
The invention presents a low-voltage circuit dynamic reactive power compensation device. A single-phase compensation circuit of a main compensation cabinet is connected with a three-phase live wire and a null line; a three-phase compensation circuit is provided with a three-phase switching switch and a capacitor bank, and the three-phase switching switch controls connection of the capacitor bank and a three-phase bus; a reactive power compensation controller controls a single-phase switching switch and the three-phase switching switch to be switched on or off. By means of the device, split-phase or three-phase circuit dynamic compensation is performed on a reactive power requirement in a circuit. The invention further provides a method for performing reactive power compensation on the low-voltage circuit through the device. The method includes the following steps that a reactive power requirement of a three-phase circuit at the moment t is monitored; when three phases are all equal to zero, the device is not started; when the three phases are larger than zero and are equal, the controller performs control for compensation; when the three phases are required to be larger than zero and are not equal, the controller firstly controls the three-phase switching switch to perform compensation, and then single-phase compensation is performed on a one-phase circuit or a two-phase circuit in the three-phase circuit; when one phase or two phases are larger than zero, the controller performs split compensation on a signal phase.
Owner:BENGBU HUITAI ELECTRIC AUTOMATION
A high-voltage electric energy meter whose metering unit can be replaced with electricity
ActiveCN104122526BFacilitate on-site inspectionEasy to compareTime integral measurementPower flowEngineering
Owner:WUHAN GUOCE HENGTONG INTELLIGENT INSTR
Automatic reading device of disturbed GIS gas insulated substation pressure meters
InactiveCN105915865AAvoid viewing errorsAvoid the situationTelevision system detailsFluid pressure measurementWireless transmissionComputer science
The invention discloses an automatic reading device of disturbed GIS gas insulated substation pressure meters. The device comprises a monitoring terminal, a data processing device and a monitoring background. The monitoring terminal is used for monitoring numerical values of the pressure meters and sending the monitored information to the data processing device. The data processing device is used for processing the received data and is uploaded to the monitoring background. According to the device, the information of the pressure meters can be inspected in real time; through adoption of a wireless transmission and multi-point installation mode in an existing device environment, the operation states of the pressure meters photographed by multiple cameras are transmitted to the monitoring background periodically; the condition that the pressure meters are inspected wrongly or omissively for manual factors is avoided; the pressure change of the gas insulated substation devices can be effectively monitored; the faults in the devices and gas and pressure leakage conditions can be discovered timely; and the manpower cost is reduced.
Owner:STATE GRID SHANDONG ELECTRIC POWER +1
Voltage transformer secondary voltage detection device and detection method
PendingCN112557741ARealize automated detectionAvoid wiring errorsMeasurement using ac-dc conversionMeasurement using digital techniquesTransformerFull wave
The invention discloses a voltage transformer secondary voltage detection device and detection method. A main controller is electrically connected with an input switching module, the input switching module is electrically connected with a voltage division module, the voltage division module is electrically connected with a full-wave rectification module, the full-wave rectification module is electrically connected with an analog-to-digital conversion module, and the analog-to-digital conversion module is electrically connected with the main controller; the main controller controls the input switching module to acquire the input voltage of each phase line; the voltage division module carries out voltage reduction processing on the phase line input voltage; the full-wave rectification moduleconverts the phase line input voltage into a direct-current voltage; the analog-to-digital conversion module converts the direct-current voltage into a digital signal; and the main controller determines that the secondary voltage of the voltage transformer is abnormal when the digital signal is greater than a set threshold. According to the technical scheme provided by the invention, automatic detection of the secondary voltage of the voltage transformer can be realized, and the detection accuracy and efficiency are improved.
Owner:GUANGDONG POWER GRID CO LTD +1
Power supply for function debugging of UPFC converter valve and controlling method thereof
InactiveCN105226988AAvoid damageAvoid burnsElectric power transfer ac networkConversion with reversalCapacitanceTerminal voltage
The invention discloses a power supply for function debugging of a UPFC converter valve and a controlling method thereof. The power supply comprises a transformer; a primary side of the transformer is connected in series with a current-limiting resistor and a main circuit breaker and then is connected with a power source unit; and by-pass switches are connected in parallel to the two ends of the current-limiting resistor. Grounding switches are connected in series between connection nodes of the current-limiting resistor and the main circuit breaker. A plurality of secondary sides are arranged at the transformer, wherein the number of the secondary sides is not less than the number of to-be-debugged UPFC converter valves; a single-phase rectification bridge is connected between any two phases of each secondary side; and an output terminal of the single-phase rectification bridge is connected in parallel with a filter capacitor. In addition, the invention also discloses a controlling method of a power supply for function debugging of a UPFC converter valve. Before usage, the main circuit breaker is turned off and the by-pass switches are in an off state; first-stage charging is carried out on the filter capacitor; when the output terminal voltage of the single-phase rectification bridge reaches over 400V, the by-pass switches are turned off; and second-stage charging is carried out on the filter capacitor. With the power supply, a phenomenon that the converter valve is damaged due to an impact current can be avoided.
Owner:STATE GRID CORP OF CHINA +2
Branch wire system
InactiveCN102667994AReduce in quantityReduction of wiring man-hoursRelay terminal arrangementsElectromagnetic relay detailsEngineeringSecondary side
A molded case circuit breaker (10) has a rear joint surface portion (13), and a first electronic device has a front joint surface portion (21). It is possible to connect the molded case circuit breaker and the first electronic device with each other in the longitudinal direction with the rear joint surface portion and the front joint surface portion in contact with each other. The molded case circuit breaker has an electrically primary side connection terminal portion (30A) for connection to a wiring on the side of a power supply and an electrically secondary side first plug-in terminal portion (30) on the rear joint surface portion. The first electronic device has a first plug terminal portion (22) for connection to the first plug-in terminal portion on the front joint surface portion. The first electronic device has an rear joint surface portion on the side opposite to the front joint surface portion and a second plug-in terminal portion (30B) on the rear joint surface portion. The second plug-in terminal portion is provided at the same position as the first plug terminal portion (22) in terms of the height and the lateral direction.
Owner:TOKYO ELECTRON LTD
Multi-cavity independent safety test box, temperature control box and cold plate box
PendingCN110865306AImprove securityImprove test efficiencyElectrical testingTemperature controlElectrical battery
The invention discloses a multi-cavity independent safety test box. The multi-cavity independent safety test box comprises a box body; a plurality of independent anti-explosion cavities are formed inthe box body; and each anti-explosion cavity is respectively provided with an anti-explosion door, and a battery wire connection assembly is fixed on the inner side wall of the anti-explosion door. The invention further discloses a multi-cavity independent safety temperature control box and cold plate box. An independent temperature regulation device is arranged in each anti-explosion cavity. By adopting the technical scheme, compared to the prior art, a plurality of independent small anti-explosion cavities which are isolated from each other and independent of each other are formed, and the battery wire connection assemblies and the anti-explosion doors are integrated, so that a chain reaction and expansion of damage in emergency can be effectively limited, and independent temperature control on each anti-explosion cavity can be implemented; and the modular structure also can effectively improve wire connection efficiency and avoid a wire connection error.
Owner:阿滨仪器(天津)有限公司
Secondary wire connector for meter installation and power connection
ActiveCN110556747AAvoid "jumping"Play a fixed roleApparatus for joining/termination cablesElectricityEngineering
The invention discloses a secondary wire connector for meter installation and power connection. The secondary wire connector comprises a wire connector body used for binding secondary wires and a secondary wire preliminary fixing part used for being matched with the wire connector body to fix and bind the secondary wires. The secondary wire preliminary fixing part is connected to an outlet area ofthe wire connector body in a buckled mode. The wire connector body is sequentially divided into, from the entry to the exit of the secondary wires, an inlet area used for allowing the secondary wiresto enter according to respective fixed tracks, a support area used for collecting the secondary wires, a binding working area used for leading in and binding tying bands when the secondary wires arebound, and the outlet area used for pulling out the secondary wires attached with the tying bands after binding is completed, and all the areas are connected end to end. Through the wire connector, the working efficiency can be improved, the wire connection error can be avoided, and the time loss caused by secondary wire connection and the loss caused by wire connection error are reduced. In use,the wire connector can also be applied to places needing secondary wire connection, such as a power transformation and distribution cabinet.
Owner:GUIZHOU POWER GRID CO LTD
Power distribution cabinet lead device
PendingCN108565685AAvoid confusionAvoid wiring errorsSubstation/switching arrangement casingsElectrical equipmentElastic string
The invention belongs to the field of electrical equipment, and discloses a power distribution cabinet lead device. The power distribution cabinet lead device comprises a lead pipe (1) and a supporting pipe (2), and is characterized in that the lead pipe (1) and the supporting pipe (2) are connected with each other through a section of corrugated pipe (3); a flat butt strap (4) perpendicular to the lead pipe is arranged on the side surface of the lead pipe (); a flat display card (5) is arranged on the lower side surface of the supporting pipe (2); a sucker (6) is connected with the upper sidesurface of the supporting pipe (2) through a elastic string (7); the lead pipe (1), the supporting pipe (2), the corrugated pipe (3) and the display card (5) form an integral structure. The power distribution cabinet lead device can help a wire to penetrate through a thread hole of a power distribution cabinet, and can further identify different wires to prevent wire disordering and and avoid mistakes of arrangement of wires.
Owner:ECONOMIC RES INST OF STATE GRID GANSU ELECTRIC POWER +2
Controller for automatically manipulating a horn signal for navigational purposes
InactiveCN1714376APrevent anti-sync featureWork together efficiently and economicallyAlarmsControl theoryFoghorn
Owner:TSX PRODS
Integrated battery charging and discharging equipment
PendingCN109799462AReduce space occupancyReduce dosageElectrical testingMeasurement instrument housingElectrical batteryCharge and discharge
The invention discloses integrated battery charging and discharging equipment which comprises a machine tool, a positive electrode module and a negative electrode module. The positive electrode moduleand the negative electrode module are arranged on the machine tool, correspond to each other and can slide to be mutually folded or unfolded, each of the positive electrode module and the negative electrode module comprises a module supporting body, a power source portion and a clamp portion, each power source portion and the corresponding clamp portion are integrated on the corresponding modulesupporting body and connected, and the clamp portion of the positive electrode module and that of the negative electrode module are used for clamping a positive electrode and a negative electrode of abattery in a contact manner for charging and discharging of the battery. The power source portion of the battery charging and discharging equipment is integrated with a mechanical portion, so that space occupation rate is small, and consumption of various cables is reduced greatly; a charging and discharging loop is short, so that charging and discharging efficiency of the equipment is improved,and power consumption cost of clients is lowered; the whole equipment is few in wire rod, easy to maintain and low in maintenance cost, wiring errors during equipment maintenance are avoided, and working safety of the equipment is improved.
Owner:惠州市鼎力智能科技有限公司
No-wire-harness connection structure
PendingCN108566756AEasy to assembleOptimize assembly processSupport structure mountingMotherboardBackplane
The invention provides a no-wire-harness connection structure comprising a motherboard 1 and a backboard. One side of the motherboard is provided with a connector L. One side of the backboard is provided with a connector M. The connector pins of the connector L are inserted through the other side of the motherboard and then inserted through the other side of the backboard connected with the motherboard and then connected with the connector M through the printed lines on the backboard. According to the structure, the wire harness can be omitted, signal switching can be directly completed through inserting connection between the motherboard and the backboard and the objective of no-cable connection of the device can be achieved; and switching of the signal required to be led out is completedthrough the printed lines between the connectors, and the connector pin description can be freely designed according to actual user application.
Owner:HENAN THINKER TRACK TRAFFIC TECH RES INST
Intelligent wire arranging system
The invention discloses an intelligent wire arranging system, and belongs to the field of cable production equipment. The problems that manual wire arranging is large in operation intensity, potentialsafety hazards exist, and personnel allocation is excessive are solved. A wire arranging part comprises a wire arranging unit, a mechanical arm unit, a feedback compensation unit and a control box; acable line is introduced into the mechanical arm unit, the mechanical arm unit comprises a mechanical arm, an X-axis adjusting device and a Y-axis adjusting device, the feedback compensation unit comprises a sensor arranged on the mechanical arm, the output end of the feedback compensation unit is connected with the control box, and the output end of the control box is connected with the X-axis adjusting device and the Y-axis adjusting device. The aims that unattended operation is achieved, wire arranging is intelligent, the wire arranging effect is good, and throwing up, wire flying and stacking do not exist are achieved.
Owner:成都亨通光通信有限公司
Device and method for rapidly seeking fault electric energy meter
The invention relates to a device and method for rapidly seeking a fault electric energy meter, and belongs to the technical field of power supply maintenance. According to the technical scheme, callipers of a clip-on ammeter clamp a line loading the live wire outlet end (2); an electric energy meter is adjusted to be in a current reading state, the same time is set through a timer, and then an observation current value of the clip-on ammeter and a current reading value of the electric energy meter are observed separately; if the error of the current values of the clip-on ammeter and the electric energy meter within the same time is 0.5 A or above, it is determined that the electric energy meter is out of order. According to the device and method for rapidly seeking the fault electric energy meter, the fault electric energy meter can be sought visually and rapidly, and the work efficiency is improved; the method is easy to operate, the accuracy can be guaranteed, and a wiring error caused by assembly and disassembly of the electric energy meter is greatly avoided; the power off time is shortened, misunderstanding of users is reduced, and the workload of workers is relieved; in the background art, one hour is needed to disassemble and assemble an electric energy meter for detection, whether the electric energy meter is out of order or not can be judged within one minute at present, and the work efficiency is greatly improved.
Owner:STATE GRID JIBEI ELECTRIC POWER CO LTD TANGSHAN POWER SUPPLY CO +1
Air conditioning system and its communication method
ActiveCN104279719BAvoid mistakesResolve interferenceMechanical apparatusSpace heating and ventilation safety systemsTelecommunicationsWired communication
The invention discloses an air conditioning system and a communication method of the air conditioning system. The air conditioning system comprises an indoor unit and an outdoor unit. The indoor unit comprises a first wireless communication module. The outdoor unit comprises a second wireless communication module. The second wireless communication module is in communication with the first wireless communication module. One of the indoor unit and the outdoor unit is a host. The other one of the indoor unit and the outdoor unit is a slave. The host and the slave complete handshake through one of at least one shared channel. One of multiple work channels is selected by the host to be used as the work channel between the host and the slave, the work channel is transmitted to the slave from one of the shared channel, and therefore the host and the slave conduct communication through the selected work channel. By the adoption of the air conditioning system and a communication method of the air conditioning system, wireless communication between the indoor unit and the outdoor unit of the air conditioner is achieved, the problems that when wire communication is adopted, efficiency is low, the fault rate is high, and energy is wasted are solved, and the problem of channel disturbance caused during wireless communication is also solved.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD
Charging station of moving robot and moving robot system
ActiveUS20210107363A1Firmly connectedEasy to useProgramme-controlled manipulatorCharging stationsSimulationMechanical engineering
A charging station of a moving robot includes connection terminals provided on two surfaces so as to allow a boundary wire, that defines a boundary of a travel area of the moving robot, to be connected thereto. The charging station has a charging unit to charge the moving robot and a docking base to dock the moving robot during charging. The charging unit includes the connection terminals.
Owner:LG ELECTRONICS INC
I-shaped wheel with flange side reference position measurement tool
Owner:ZHENJIANG NAISI ADVANCE MATERIALS
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