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66results about How to "Reduce power outage time" patented technology
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Automatic power-passing phase-splitting apparatus of AC drive electric locomotive
The invention discloses an automatic passage method through phase splitting for an AC-DC-AC electric locomotive which comprises the following steps: before the electric locomotive runs into a neutral section, a traction control system controls a traction motor to work in a regenerative braking mode and controls an inverter to stabilize intermediate DC voltage; a pulse rectifier works in an inversion state; an alternating voltage equal to a traction voltage is generated on the primary side of a traction transformer, thereby making the primary side of the traction transformer obtain zero current from a power supply arm; after the electric locomotive runs into the neutral section, the intermediate DC voltage still maintains stability; the AC phase generated by the inversion of the pulse rectifier in the inversion mode changes gradually so as to make the voltage of the primary side of the traction transformer change to become equal to the traction voltage of a next power supply arm; and then the electric locomotive enters the next power supply arm and runs normally. The method enables the automatic passage through phase splitting; in addition during the phase splitting, a main circuit breaker does not need to be turned on and off without arc discharge, interception overvoltage and closing surge overcurrent, and an auxiliary system is not deenergized; and the passage through phase splitting has short time, low traction loss and small speed drop.
Owner:SOUTHWEST JIAOTONG UNIV
Rain-proof distribution box
ActiveCN105226511AEasy to slideAvoid damageSubstation/switching arrangement cooling/ventilationSubstation/switching arrangement casingsEngineeringPlugboard
The invention provides a rain-proof distribution box, and belongs to the technical field of power distribution equipment. The rain-proof distribution box comprises a square box body and a plugboard, wherein static contacts and slide chutes of a plurality of electric connectors are fixed in the box body; movable contacts of the electric connectors are arranged on the plugboard; guide sliding strips coats two sides of the plugboard; the slide chutes are matched with the guide sliding strips and are fixed on the inner side wall of the box body; the plugboard comprises an upper plugboard, a middle plugboard and a lower plugboard; two portable handles are fixed on the upper end surface of each plugboard; a hand push handle is arranged at the outer end of each plugboard; a ventilating partition plate is also horizontally arranged in the box body and is located below the lower plugboard; a plurality of air holes are formed in the middle of the ventilating partition plate; a lifting rod is vertically arranged at the center of the ventilating partition plate in a penetrating manner; the upper end of the lifting rod is connected with a support block; the lower end of the lifting rod is connected with a floating plate; and the lifting rod ascends and then the air holes are completely plugged by the floating plate. According to the rain-proof distribution box, the distribution box and the outside are kept in good ventilation; and the rain-proof distribution box has good waterproofness and high safety.
Owner:浙江新跃电气有限公司
Direct-current remote feeding power system
ActiveCN102237678AIncrease work usageIntelligent monitoring functionDc network circuit arrangementsDriver circuitEmbedded system
The invention discloses a direct-current remote feeding power system, which comprises a local module, a remote module, communication equipment and a local control module, wherein the local control module consists of an input over-voltage / under-voltage protection functional circuit and an output over-voltage and strong-current invasion protection functional circuit; the input over-voltage / under-voltage protection functional circuit detects an input voltage and drives the whole circuit for input over-voltage / under-voltage protection; the output over-voltage and strong-current invasion protection functional circuit limits an output voltage of a local power supply to be equal to or less than direct current (DC) 400 V; and when the output voltage is more than 400 V, a voltage-stabilizing tube is switched on reversely to drive the circuit to operate for over-voltage protection. The direct-current remote feeding power system has the advantages that: the power-off time of the communication equipment is shortened; construction cost, operation cost and maintenance cost are reduced; installation and construction are facilitated; safety for power utilization is improved; and the service life of the communication equipment is prolonged. The direct-current remote feeding power system is widely applicable to construction of mobile base stations, Ethernet passive optical networks (EPCN), indoor or outdoor computer rooms and the like.
Owner:邯郸健研电子科技有限公司
Printing apparatus
InactiveUS20120098916A1Reduce printing timeSolution to short lifeRecording apparatusPrintingHeat sensitiveEngineering
In order to shorten an overall printing time without shortening a life of a heating resistance element of a thermal head, provided is a printing apparatus, including: a printing unit for performing printing by pressing a thermal head onto heat sensitive paper to heat the heat sensitive paper; a battery for supplying a voltage to the thermal head; a battery voltage detecting unit for detecting the voltage; and a printing control unit for changing, according to the detected voltage, a power-off time in which power supply from the battery to the thermal head is stopped.
Owner:SEIKO INSTR INC
Automatic power-passing phase-splitting method of AC drive electric locomotive
The invention discloses an automatic passage method through phase splitting for an AC-DC-AC electric locomotive which comprises the following steps: before the electric locomotive runs into a neutral section, a traction control system controls a traction motor to work in a regenerative braking mode and controls an inverter to stabilize intermediate DC voltage; a pulse rectifier works in an inversion state; an alternating voltage equal to a traction voltage is generated on the primary side of a traction transformer, thereby making the primary side of the traction transformer obtain zero current from a power supply arm; after the electric locomotive runs into the neutral section, the intermediate DC voltage still maintains stability; the AC phase generated by the inversion of the pulse rectifier in the inversion mode changes gradually so as to make the voltage of the primary side of the traction transformer change to become equal to the traction voltage of a next power supply arm; and then the electric locomotive enters the next power supply arm and runs normally. The method enables the automatic passage through phase splitting; in addition during the phase splitting, a main circuitbreaker does not need to be turned on and off without arc discharge, interception overvoltage and closing surge overcurrent, and an auxiliary system is not deenergized; and the passage through phase splitting has short time, low traction loss and small speed drop.
Owner:SOUTHWEST JIAOTONG UNIV
Method for power maintenance through transient power stop and transient stop selective reclosing circuit
ActiveCN104505823AReduce power outage timeReduce outage timeFault location by conductor typesAc network circuit arrangementsOff timeEngineering
Provided are a method for power maintenance through transient power stop and a transient stop selective reclosing circuit. The transient stop selective reclosing circuit comprises a bus and at least one branch line. Each branch line is provided with a time relay normally open switch which is connected in series with a current transformer and an intermediate relay; an intermediate relay normally closed contact is connected in parallel to the two ends of the time relay normally open switch and the intermediate relay; and the intermediate relay normally closed contact is connected in series with a time relay. The beneficial effect is that whether a line is a faulty line can be judged on an integrated computer platform according to the switching time of circuit breaking operation for inspection. In the process, the power-off time of a circuit without faults is shortened to 1-5 seconds, thus reducing the power outage time for the society.
Owner:STATE GRID CORP OF CHINA +1
MBUS control circuit for temperature control valve and control method thereof
PendingCN108302239ASolve the problem of no power supply during maintenanceImprove satisfactionOperating means/releasing devices for valvesMicrocontrollerTemperature control
The invention provides an MBUS control circuit for a temperature control valve. The MBUS control circuit for the temperature control valve comprises a single chip microcomputer for controlling the temperature control valve, a rectifying circuit in bus connection with MBUS, and a power supply circuit connected with the rectifying circuit and used for supplying power to the single chip microcomputer. The power supply circuit comprises a 6mA constant current source for providing a basic working current to the single chip microcomputer, a 20mA controllable constant current source for providing a large current to the single chip microcomputer and receiving a signal sent by the single chip microcomputer, and a constant-current control circuit for receiving a host signal; the 20mA controllable constant current source comprises a constant current source I1 and a control circuit for receiving the signal of the single chip microcomputer; and a receiving circuit for converting a high-low level sent by a host into a high-low level signal recognized by the single chip microcomputer is connected onto the rectifying circuit. According to the MBUS control circuit for the temperature control valveprovided by the invention, the adopted 20mA controllable constant current source receives a slave signal so as to accomplish data interaction with the host, and the adopted receiving circuit can convert the high-low level on the host into the signal recognized by a slave, so that the problems of power supply and communication between the host and the slave are solved through two power lines.
Owner:RUINA INTELLIGENT EQUIP CO LTD
Disconnection-free testing method for high voltage electric equipment in transformer substation
InactiveCN105974229AFulfill test requirementsReduce power outage timeElectrical testingElectrical devicesHigh pressure
The invention provides a disconnection-free testing method for high voltage electric equipment in a transformer substation. The method includes steps of a, cutting off power of the equipment in the transformer substation, disengaging a switch on a grounding side of a circuit breaker and engaging the circuit breaker, disengaging a neutral point grounding switch of a voltage transformer, disengaging a voltage transformer side switch, moving a handcart in a switch chamber to an operation position and disengaging the grounding switch; b, measuring the integral resistance of all the equipment; c, connecting a DC leaking equipment to a high voltage side single-phase conductor of a main voltage transformer, boosting voltage slowly after wiring, maintaining for one minute after the voltage is boosted for 1 / 10 each time during the boosting process, reading the leaking current value until the leaking current value lasts for one minute in a full voltage condition; d, drawing a volt-ampere characteristic curve according to the read voltage, current and time. Since the above technical scheme is adopted, the testing duration can be reduced effectively and the working efficiency is improved. The testing demand for saving the equipment disconnection process is realized, the line power-off time is reduced and great social benefits and economic benefits are achieved.
Owner:STATE GRID SHANDONG ELECTRIC POWER CO QINGZHOU POWER SUPPLY CO +2
Paint-dipping drying technique for dry-type three-phase combined transformer
The name of the invention is paint dipping and drying technology of a three-phase combined transformer. The invention relates to the dry-typed three-phase combined transformer, in particular to the paint dipping and drying technology of the three-phase combined transformer. The technology can solve the problems of small overload capacity, easy explosion, heavy weight and inconvenient installation of the known epoxy resin cast dry-typed combined transformer. The technology is the paint dipping and drying technology of a voltage transformer coil and is completed by three times; in the first time, the coil is well winded for paint dipping; in the second time, a secondary coil is well placed for paint dipping after wrapping a foot loop; in the third time, the paint dipping is carried out after well winding an outer insulation; the three times of the paint dipping and drying technology process and the paint dipping and drying technology process of a current transformer coil are as follows: (1) pre-drying of a white body; (2) vacuum dewetting; (3) paint dipping; (4) returning of paint; (5) returning of residual paint; (6) cleaning; (7) returning of a cleaning agent; (8) drying. The paint dipping and drying technology has higher dynamic and thermal stability, fire retardance, environmental protection, safety, low loss, good thermal radiation, great overload capacity, light weight, convenient transportation and installation and free maintenance.
Owner:王立诚
Urban power distribution network recovery method considering mobile emergency resource scheduling
ActiveCN113346488AReduce power outage timeGuaranteed load power supplySelective ac load connection arrangementsEmergency power supply arrangementsDistributed computingDistribution grid
The invention provides an urban power distribution network recovery method considering mobile emergency resource scheduling. The method comprises the following steps of: establishing a mobile power generation resource constraint model considering the constraint of the time when mobile power generation resources arrive at a fault; establishing a topology constraint model considering the constraint of repairing the line by maintenance personnel; establishing a multi-period urban power distribution network fault recovery model considering mobile emergency resource scheduling by taking weighted power supply time maximization of a load as a target and taking an operation constraint, the mobile power generation resource constraint model, the topology constraint model and a load state constraint as constraint conditions; and solving the multi-period urban power distribution network fault recovery model considering mobile emergency resource scheduling, and carrying out mobile emergency resource scheduling on an urban power distribution network according to a solving result. According to the method, the optimal recovery strategy can be obtained, so that the purposes of rapidly generating a recovery strategy, guaranteeing important load power supply and reducing load power-off time are achieved.
Owner:SHANGHAI MUNICIPAL ELECTRIC POWER CO +1
Multifunctional universal operation handle
The invention provides a multifunctional universal operation handle, belongs to the related fields of electrical power generation, power transformation or power distribution, is a tool for power equipment, and particularly relates to a multifunctional operation handle for a power distribution station, a box type substation and a loop network unit for power supply or power distribution. The multifunctional universal operation handle comprises a detachable head, a connector, an adapter, an operation handle and a key hole, wherein an internal hexagonal connecting hole is formed in one end of the adapter, and the adapter is sheathed on the operation handle through the internal hexagonal connecting hole, and is connected with the operation handle; an outer hexagonal head is arranged at the other end of the adapter; an outer hexagonal head is arranged at one end of the detachable head, and the outer hexagonal head at the adapter is connected with the outer hexagonal head at the detachment head through the connector; an outer hexagonal head is arranged at the initial end of the operation handle, and the outer hexagonal head at the operation handle is connected with the detachable head through the connector; a key containing cavity is arranged in the tail end of the operation handle, a key container is arranged in the key containing cavity, and a key is contained into the key container, so as to realize the integral management of the key.
Owner:SUQIAN POWER SUPPLY COMPANY OF JIANGSU PROVINCE POWER +2
Energy storage system grid-connected and off-grid switching system and switching method
ActiveCN112713645ACause adhesionAvoid damageSingle network parallel feeding arrangementsEmergency power supply arrangementsHemt circuitsEngineering
The invention discloses an energy storage system grid-connected and off-grid switching system and switching method. The system comprises a grid-connected and off-grid switching device STS and a bidirectional energy storage converter PCS, wherein the grid-connected and off-grid switching device STS comprises a controller, a thyristor SCR, a first-stage relay and a second-stage relay, a first-stage relay and a second-stage relay in the main circuit of the grid-connected and off-grid switching device STS are sequentially connected, the thyristor SCR is connected to the second-stage relay in parallel, and a controller in the control circuit of the grid-connected and off-grid switching device STS is connected with the two-stage relay and the thyristor SCR. According to the invention, the SCR is connected to the two ends of the relay in parallel, signals can be sent to the SCR and the relay at the same time when the relay is disconnected from the grid, and due to the fact that the semiconductor switch speed is high, the SCR can be switched on firstly, so that no voltage difference exists between the two sides of the relay when the relay acts, and arc discharge and relay adhesion cannot be caused when the relay is disconnected.
Owner:西安新艾电气技术有限公司 +1
Automatic switching load switchgear and automatic switching load switchgear system
PendingCN106992599AAlleviate structurally complex technical issuesReduce power outage timePower network operation systems integrationInformation technology support systemData informationControl signal
The present invention provides an automatic switching load switchgear and an automatic switching load switchgear system. The automatic switching load switchgear comprises: a dual power automatic switching control device configured to collect data information of power supply circuits and switching value information of a load switch, analyze the data information and the switching value information and generate switching control signals according to an analysis result; and an operation mechanism configured to receive the switching control signals sent by the dual power automatic switching control device and control the load switch to execute the switching motion according to the switching control signals to allow any one of the main power supply circuit and a standby power supply circuit to perform power supply. According to the embodiment of the invention, the automatic switching load switchgear realizes automatic switching of the load switch on the main power supply circuit and the standby power supply circuit through the dual power automatic switching control device, the structure is simpler, the reliability of power supply is improved, the power-off time of electric equipment is reduced, and the technical problem of a traditional dual power automatic switching control device is complex in structure is alleviated.
Owner:上海安奕极企业发展股份有限公司
A plug-in miniature circuit breaker
PendingCN109036982AReduce power outage timeEnsure power supply securityProtective switch terminals/connectionsElectrical conductorCircuit breaker
The invention discloses a plug-in type small circuit breaker, comprising a circuit breaker socket and a circuit breaker body. A dovetail slot adapted to be installed with the circuit breaker body is arranged on the circuit breaker socket. The circuit breaker socket is provided with an inlet terminal assembly and an installation hole connected with an external wire. The circuit breaker body comprises a housing and a conductive plug, wherein a movable contact assembly, a static contact assembly, a double-gold protection assembly, an outlet terminal assembly, an arc extinguishing system and a handle for controlling the two to be turned on or off are arranged in the housing; Wherein the conductive plug extends out of the housing, and the conductive plug is connected with the conductor of the static contact assembly; The outlet terminal assembly is provided with a conductive plate, a terminal frame and a fastening screw which are electrically connected with the exterior; As that conductiveplate of the outlet terminal assembly is connected with the terminal frame and the outlet side, the circuit breaker body can be quickly insert and extracted from the mounting groove of the circuit breaker socket for installation and replacement, and the circuit break body is convenient for users to use safely.
Owner:中欧电气有限公司
Base for small isolation switch
The invention discloses a base for a small isolation switch. The base comprises a plastic housing and two wiring terminal assemblies arranged in the plastic housing. The plastic housing comprises twowiring portions and a coupling portion, and a socket is formed by the two wiring portions and the coupling part. An external switch module is replaced by adopting a plug-and-pull structure, the plug-and-pull structure is unplugged from the base and then inserted into another one during the replacement and repair, and a power-off time is effectively shortened.
Owner:卢卫征
Distribution network state maintenance auxiliary system and method based on distributed learning
InactiveCN106709630AEfficient operating status assessment resultsReliable results for health assessmentResourcesEvaluation resultSimulation
The invention discloses a distribution network state maintenance auxiliary system and a distribution network state maintenance auxiliary method based on distributed learning. The distribution network state maintenance auxiliary system comprises a data acquisition module, a data association module, a distributed model parameter determination module and a distribution network equipment operation state evaluation module. The distribution network state maintenance auxiliary system just needs to obtain power distribution network equipment operating data by means of the data acquisition module, obtain power distribution network equipment operating state index association characteristics by means of the data association module, obtain a power distribution network equipment operating data and state evaluation model by means of the distributed model parameter determination module and finally obtain a power distribution network equipment operating state evaluation result by means of the distribution network equipment operation state evaluation module, does not need manual calculation and analysis, and makes the obtained power distribution network equipment operating state evaluation result more efficient and reliable.
Owner:STATE GRID ZHEJIANG ELECTRIC POWER CO LTD SHAOXING POWER SUPPLY CO +3
Rainproof distribution box
InactiveCN109904747AEasy to slideAvoid damageSubstation/switching arrangement cooling/ventilationSubstation/switching arrangement casingsEngineeringElectrical connector
Owner:宁波永耀信息科技有限公司
Controller suitable for grid-connected inverter and power supply method of secondary system
ActiveCN103580060AGuaranteed low voltage ride through capabilityDelay power off timeSingle network parallel feeding arrangementsAc network load balancingCapacitanceElectric energy
The invention discloses a controller suitable for a grid-connected inverter and a power supply method of a secondary system. A transformer unit converts power grid voltage into alternating currents and then outputs the alternating currents through a first alternating current output end, the alternating currents are converted into direct currents through a rectification unit and a capacitor filtering unit and then are output to the capacitor filtering unit through a first direct current output end to be stored and filtered, and the direct currents are converted into second direct currents through a direct current conversion power source and then are output through a second direct current output end. The controller suitable for the grid-connected inverter and the power supply method of the secondary system are provided with at least three voltage output ends which respectively obtain 220V alternating direct voltage, 300V direct current voltage and 24V direct current voltage to supply power to various secondary devices in the grid-connected inverter, meanwhile, have an energy-storage function and keep stable voltage output of each output end.
Owner:NAVAL UNIV OF ENG PLA +1
Plug-in miniature circuit breaker
InactiveCN107564776AWon't burn outEasy to replaceProtective switch terminals/connectionsElectricityCircuit breaker
The present invention discloses a plug-in miniature circuit breaker. The breaker comprises a pedestal and a plug-in circuit breaker module; the pedestal comprises a pedestal housing with a jack and two wiring terminal modules; the plug-in circuit breaker module is installed in the jack in a pluggable mode; the plug-in circuit breaker module comprises a module housing, an electricity input socket,an electricity output socket and a switch-on-off operation mechanism; each wiring terminal module comprises a metal frame, a wiring screw, an electrical terminal and an electrical plug board; the electrical terminal comprises wire clamping board portions located at two sides of the jack and an electrical board portion located below the jack; the wire clamping board portions and the metal frame areclamped to form a wire clamping hole; the bottom portions of the electrical plug boards are fixed on the electrical board portion, and the top portion of the electrical board portion stretches out ofthe pedestal housing and are located in the jack; and the electricity input socket and the electricity output socket are located in the module housing, and the electricity input socket and the electricity output socket are respectively adapted to the electrical plug boards. The plug-in miniature circuit breaker cannot damage the pedestal and is convenient to maintain.
Owner:SUZHOU XIQUAN SOFTWARE TECH CO LTD
Printing apparatus
InactiveUS8456498B2Reduce printing timeSolution to short lifePrintingElectrical resistance and conductanceElectrical battery
A printing apparatus includes a printing unit for performing printing by pressing a thermal head onto heat sensitive paper to heat the heat sensitive paper. A battery supplies a voltage to the thermal head, and a battery voltage detecting unit detects the voltage. A printing control unit changes, according to the detected voltage, a power-off time in which power supply from the battery to the thermal head is stopped. The printing control unit calculates the power-off time based on the detected voltage and the resistance of the thermal head and shortens the power-off time as the detected voltage becomes lower thereby shortening the overall printing time without shortening the life of the heating resistance elements of the thermal head.
Owner:SEIKO INSTR INC
Method for manual switching automatic judgment under condition of different-network power supplies serving as station service power supplies
PendingCN111711261ANo need to increase investment costsReduce power outage timeEmergency power supply arrangementsControl engineeringStandby power
The invention discloses a method for manual switching automatic judgment under the condition of different-network power supplies serving as station service power supplies and aims to mainly solve theproblem of equipment tripping caused by the fact that a switching mode steps into synchronous switching or long-delay switching under the condition of different-network power supplies serving as station service power supplies. The method comprises the following steps that: (1) whether the two different-network power supplies can be quickly switched through the automatic starting of a quick switching device, and a starting mode of the quick switching device is selected; (2) a quick switching device manual starting quick switching judgment condition is added into manual switching logic in the logic configuration of a DCS; and (3) during manual quick switching operation, the DCS automatically captures a quick switching device manual quick switching judgment condition and automatically issuesa manual starting quick switching logic. According to the method of the invention, through the existing signal output function of the quick switching device and on the basis of the manual logic modification of the DCS system, automatic quick switching selection in a manual mode is realized, and the power-off time during the switching of the two different-network power supplies is reduced, and theabnormal tripping probability of auxiliary equipment of a power plant is greatly reduced.
Owner:陕西榆林能源集团横山煤电有限公司
Active arc extinguishing method, device and circuit breaker, automatic transfer switch
ActiveCN112768274BReduce power outage timeFast arc extinguishingElectric switchesEmergency power supply arrangementsTerminal voltageTransfer switch
Owner:CHANGSHU SWITCHGEAR MFG CO LTD (FORMER CHANGSHU SWITCHGEAR PLANT)
A DC PC-level double-power switch arc extinguishing structure
The invention relates to a DC PC-level double-power switch arc extinguishing structure, comprising a double-layer power supply structure. The power supply structure comprises a base and a casing; Fourstatic contact groups and one movable contact are arranged on the base; Each stationary contact group comprises two stationary contacts, and the two stationary contacts are oppositely installed on both sides of the movable contacts. The movable contact comprises a movable contact rod. The movable contact rod is parallel to the transverse edge of the base; When the movable contact rod moves in thedirection of the transverse edge of the base, the movable contact point and the static contact point close or open; a plurality of permanent magnet devices are respectively fixed on the base and thecover shell. The permanent magnet device comprises a permanent magnet; arc-separating plate are arranged on that outside of the permanent magnet; as that house covers the base, the stationary contactare located between the two permanent magnet devices. The invention can quickly extinguish the arc, effectively solves the arc pulling phenomenon when the power supply is disconnected, accelerates thedisconnecting speed of the double power supply switch, and improves the breaking capacity of the double power supply switch.
Owner:JIANGSU KAILONG ELECTRONICS
Low voltage ground wire set
InactiveCN106450836AEasy to useAvoid displacementElectric connection basesLow voltageEconomic benefits
The invention discloses a low voltage ground wire set and relates to the technical field of a grounding device. The ground wire set includes five ground rods, wherein each ground rod is provided with a ground lead; and free ends of the five ground leads are fixedly connected, and then are connected with one end of one ground wire. As the ground wire set includes five ground rods, the ground wire set can satisfy the ground requirement for five-wire low voltage line construction. Therefore, with the low voltage ground wire set, the operation time is saved; the work efficiency is improved; the power cut and delivery time is reduced; and the economic benefit is improved.
Owner:STATE GRID CORP OF CHINA +2
Emergency power supply device for box-type substation
PendingCN110635554AQuick realization of emergency power supplyRealize power supplyElectric switchesEmergency power supply arrangementsTransformerLow voltage
The invention discloses an emergency power supply device for a box-type substation. The emergency power supply device comprises an emergency power supply, a dual power supply changeover switch and a handle assembly. The outgoing end of the dual power supply changeover switch is electrically connected with a low voltage shunt switch. The handle assembly is used for controlling the incoming end of the dual power supply changeover switch to switch on the emergency power supply or the transformer, When the emergency power supply is needed for power supply, the incoming end of the dual power supplychangeover switch is enabled to be connected with the emergency power supply by the handle assembly so that the emergency power supply can be quickly realized and the power failure time on the user side can be greatly shortened.
Owner:SHANGHAI ZHIXIN ELECTRIC AMORPHOUS +1
Assembling insulating operation rod
InactiveCN105185610AImprove efficiencyEasy to manageContact operating partsTransformerElectric power
The invention provides an assembling insulating operation rod that has advantages of improved utilization efficiency and convenient management and is suitable for all transformer substations, thereby overcoming defects of disordered usage and management, low efficiency, and poor safety of the traditional operation rod. With the assembling insulating operation rod, technical problems can be solved. The assembling insulating operation rod is characterized in that the rod comprises a connecting rod and an operation head, wherein the connecting rod and the operation head are connected in a matching mode. The connecting rod contains at least one connecting rod unit; the adjacent connecting rod units are connected in a head-to-tail mode to extend the length of the connecting rod; and a first insulating sheath is arranged at the outer side of the connecting rod. The operation head is an outdoor equipment operation head and the appearance of the operation head is in a cylindrical shape; and a second insulating sheath is arranged at the outer side of the cylindrical operation head. The operation head can be an operation head of a switch cabinet device, wherein the appearance of the operation head matches the switching cabinet device; or the operation head can be an operation head of an energy storage device, wherein the appearance of the operation head matches the energy storage device. The assembling insulating operation rod can be widely applied to the power transmission field.
Owner:JINCHENG POWER SUPPLY COMPANY OF STATE GRID SHANXI ELECTRIC POWER +1
Multifunctional operating rod for transformer station
InactiveCN103618224AReduce typesReduce the probability of taking the wrong stickSwitchgearElectricityTransformer
The invention relates to a multifunctional operating rod for a transformer station. The multifunctional operating rod comprises a support bar and a power rod, the support bar is a hollow cylindrical pipe, axisymmetric grooves encircling a rear opening of the support bar are arranged, plug holes are arranged in the rear portion of the support bar at intervals, the plug holes penetrate through the support bar, a tetragonal jack is arranged at the front end of the support bar, and an L-shaped power rod is inserted in the plug holes. The multifunctional operating rod can be operated on different devices, which effectively reduces rod types in a transformer station, minimizes the possibility of taking a wrong rod during operation, lowers the complexity of large-scale power cutting and delivery work in the transformer station, improves operation efficiency and saves power cutting and delivery time. The multifunctional operating rod can be applied to different devices, which effectively reduces operating rod types in a transformer station, reduces the possibility of taking a wrong operating rod during operation for operators, reduces the complexity of large-scale power cutting and delivery work in the transformer station, improves operation efficiency and saves the power cutting and delivery time.
Owner:STATE GRID CORP OF CHINA +1
Cylindrical lithium ion battery with over charging protective function and its preparing method
InactiveCN1988213AImprove overcharge protectionSave raw materialsFinal product manufactureSmall-sized cells cases/jacketsEngineeringHigh pressure
This invention discloses a cylinder Li ionic cell with an overcharge protection function and its preparation method composed of a shell, a Li ionic negative set in the shell capable of being inserted and getting out and a positive containing Li metal oxide as the active substance and non-solution electrolyte with the content of 1.67-3.60g / Ah, and said shell is sealed by a closed high pressure method.
Owner:TIANJIN LISHEN BATTERY
Outdoor alternating-current high-voltage isolation switch and isolation switch system thereof
InactiveCN104617676AShorten power outage timeReduce labor intensityProgramme controlComputer controlEngineeringCommunication unit
The invention relates to the technical field of electric power, in particular to an outdoor alternating-current high-voltage isolation switch and an isolation switch system thereof. The outdoor alternating-current high-voltage isolation switch comprises a plurality of field branch control units formed by a plurality of channels, a master station communication unit, a remote communication looped network optical fiber and a control center, wherein the field branch control units are in signal connection with the master station communication unit; the master station communication unit is connected with the remote communication looped network optical cable; the remote communication looped network optical cable is connected with the control center. By adopting the outdoor alternating-current high-voltage isolation switch and the isolation switch system, the behindhand manner of walking to the field to operate on the spot can be replaced, so that the power cut and transmission time is greatly shortened, the labor intensity is reduced and the personal safety of workers is ensured; the isolation switch is compact in structure, good in using effect, low in manufacturing cost and high in response speed.
Owner:STATE GRID CORP OF CHINA +1
Wireless binary channel detection device
InactiveCN105045154AImprove safe operationImprove online rateProgramme control in sequence/logic controllersElectricityWireless mesh network
The invention discloses a wireless binary channel detection device, comprising a GPRS wireless communication module (5), a CDMA wireless communication module (6), an antenna, a SIM card, and a power supply circuit (10) which are interconnected. The wireless binary channel detection device is characterized in that the GPRS wireless communication module (5) and the CDMA wireless communication module (6) are connected to a simulation channel switching circuit (7); the simulation channel switching circuit (7) comprises a signal processing 89C2051 circuit (7-1)and a relay or a simulation electronic switch (7-2); the signal processing 89C2051 circuit (7-1) is connected to the GPRS wireless communication module (5) and the CDMA wireless communication module (6);and the relay or the simulation electronic switch (7-2) is connected to the RS232 conversion circuit (8) and the RS485 conversion circuit (9) which are connected to the external ports. The wireless binary channel detection device is stable in operation, improves the access rate of the wireless network, saves the investment, effectively shortens the outage time, provides a safe channel environment to the operation of the distribution network and supports the dual-network simultaneous operation.
Owner:YANTAI POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER +1
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