41results about How to "Meet the needs of actual operation" patented technology

The invention discloses an operation optimizing method capable of coordinating operation risk and wind energy consumption of a power system. The method comprises the steps of 1) predicating a load model of the power system, building a wind power model, and forming a net load power model according to the determined load model and the wind power model; 2) building a right end tail part risk related net load sample and a clockwise rotating backup model, determining that the power does not meet the expected value, building a left end tail part risk related net load sample and an anticlockwise rotating backup model, and determining to remove expected wind quantity value; 3) providing weight coefficients according to step 2), substituting into penalty terms, and building an economic dispatch model; 4) solving the economic dispatch model of the step 3) to obtain the primary dispatch operation mode of the power system; 5) predictably improving the wind speed, enabling the wind power predication model to reach accuracy, modifying the dispatch operation mode obtained in step 4) so as to obtain the optimal operation mode through which the wind power predication information can be fully utilized and the risk can be resisted.

The invention provides a typical scene recognition based dynamic reconstruction method of a power distribution network. The dynamic reconstruction method comprises the steps of determining a weight of an optimal target under each typical scene; performing time division on a daily load curve of the power distribution network to obtain a reconstruction daily load forecast curve; identifying a type of the typical scene to which each time belongs on the reconstruction daily load forecast curve; building a multi-target reconstruction model of each time on the reconstruction daily load forecast curve to obtain an optical switch state of each time on the reconstruction daily load forecast curve; and adjusting the optimal switch state to obtain an optimal dynamic reconstruction scheme of the power distribution network. The reconstruction method proposed by the invention is high in reliability and fast in solution speed, and load change can be dealt with to acquire a targeted reconstruction scheme according to different typical scenes; the reconstruction scheme is optimal and is more reasonable; and the reconstruction stability and reliability of the power distribution network is ensured, the power distribution network after dynamic adjustment conforms more to the demand of actual running of the power distribution network, and the running stability of the power distribution network is improved.

The invention relates to a prevention, control and fault handling method and system for a power distribution network. The prevention, control and fault handling system for the power distribution network comprises a uniform-control platform, an information acquisition unit and a prevention and control unit, wherein one end of the uniform-control platform is connected with the information acquisition unit, the other end of the uniform-control platform is connected with the prevention and control unit, the prevention and control unit is used for predicting the abnormal operating state of devices in the power distribution network in a short period of time in future, and the prevention and control unit comprises a second index calculation module used for setting an index in advance according to the information of the devices in the power distribution network and the information of a network topology and storing the information of the topology so that data support can be provided for a fault handling unit. The prevention, control and fault handling method and system for the power distribution network have the advantages that the practicability is high, threshold crossing can not occur easily in a short period of time, time of prevention and control handing is effectively saved, energy is saved, and the probability of occurrence of faults is lowered.

The invention relates to combined type cold slag device. It includes cold slag room, air chamber, and water cooling packing auger cold slag machine. The cold slag room is set two divider to divide it into three cooling room. The second divider lower is set hole. The first cooling room is spouted bed structure of which bottom is set close-hole type grid plate on which the main slag discharge pipe is set. The back two cooling rooms are set water cooling tube bank, and funnel cap type grid plate at the bottom. The invention can satisfy the demands of big feeding coal granularity, actual motion and macro-scale operations technology development for circulating fluidized bed boiler.

A method for multi-objective evaluation of power supply capability of active distribution network includes the following steps: 1) establishing constraint conditions of active distribution network considering source network load control, the output of fan and photovoltaic in active distribution network is generated by Monte Carlo sampling, Distributed-Generation-Based output, Network topology, load response constraints to generate the corresponding active distribution network source network load coordination scheme, according to the fan, photovoltaic output and the corresponding load level andactive distribution network grid structure power flow calculation, power flow calculation results based on chance constraints to determine whether to meet the confidence in the probability constraintconditions; 2) if yes, calculating that power supply capacity of the active distribution network and the cost of source network load control, if not, re-assigning the two objective function values toexecute step 3); 3) utilizing the improved crossover operator and the elite selection strategy to judge and updating the two target values of the active distribution network power supply capacity andthe source network load control cost, and obtaining the Pareto solution set based on the non-dominated sorting; 4) the Pareto solution set are screened, the compromise optimal solution is selected, and the evaluation results of the active distribution network multi-objective optimization and the source network load adjustment scheme are output.

The invention discloses a current protection control method for a 24kV vacuum circuit breaker, which comprises the following steps: 1) sampling is delayed in case of sudden power up to avoid inrush current when the stage line is suddenly closed; 2) a virtual value of the current in the circuit is calculated after stable operation; 3) if the virtual value does not exceed a setting value, sampling is redone; if the virtual value exceeds the setting value, whether the current in the line is inrush current, over current or short circuit is judged; if the current is inrush current, the sampling is redone and if the current is over current or short circuit, protection is carried out. A current protection control device for a 24kV vacuum circuit breaker which fulfills the current protection method comprises a power module, a single chip microcomputer, an A, C phase current transformer, an electric quantity signal input module, a dial switch status input module, a relay output module and a trip coil drive module. The method and the device of the current protection control device have accurate control and the purpose thereof is easy to be realized.

The invention discloses an isolated micro-grid optimum economic operation method taking energy storage life loss into consideration. Through research on influences of the charge and discharge process of a lead acid battery on life and conversion into economic cost to be added to a target function, a micro-grid optimal economic operation model taking the energy storage life loss into consideration is established, the model is solved by use of a strategy of combining an adjusting strategy and a particle swarm algorithm, an isolated micro-grid optimum economic operation scheme is determined, and output of a micro gas turbine and charge and discharge power of the lead acid battery at each stage in a scheduling period of an isolated micro-rid system are controlled according to the optimum economic operation scheme, such that the micro-rid system can be prevented from excessive power generation, and the operation cost of the micro-rid system can be decreased under the condition that power supply load demands are satisfied; and at the same time, the operation process of the isolated micro-grid optimum economic operation method is quite simple, the versatility is quite good, and the isolated micro-grid optimum economic operation method can be widely applied to planning the micro-grid economic operation scheme on different application occasions.

The invention relates to a spraying and atomizing cooling system for an internal combustion locomotive, which comprises an upper water tank, a radiator and a lower water tank. The radiator is arranged between the upper and lower water tanks. A fan is arranged on one side of the radiator. A nozzle is arranged on the other side of the radiator. The nozzle is connected with a water storage tank through a stop valve and a second water pump. A water outlet of the second water pump is connected with the water storage tank through a bypass valve to form a bypass circuit. According to the invention, the nozzle, the water pump, the stop valve and the water storage tank are provided additionally under the conditions of working state, working space and system operation of the existing device so that the cooling capacity of the cooling system of the internal combustion locomotive is increased by about 20%-30% compared with that of the existing cooling systems. The spraying and atomizing cooling system for the internal combustion locomotive can meet the demand of actual operation so as to ensure the safety and reliability of the locomotive in the operation process.

A current protection control method is provided, the steps are as following: while suddenly adding power, time delay is added; after stable operating, calculating a current affective valve more than the setting value; if the current affective valve is not more than the setting value, re-processing the sampling; it the effective value is more than the setting value, the current in the line is judged as flowing or over-flowing / short circuit; it current is flowing, processing re-sampling; if the current is over-flowing / short circuit processing protection action. A current protection control device, the structure is that: a power source module outputs connecting singlechip power source input; A, C phase current mutual inductors respectively outputs the power quantity signal collecting module input, and singlechip collecting signal input after the signal collecting module output end is A / D converted; switch quantity input module connects the singlechip; the singlechip output connects input of the switch quantity output module; the output module controls a tripping coil driven module; the power source of the tripping coil driven module is connected the output of the A, C phase current mutual inductors; the driven module output module is connected to the external tripping coil driven module.

The invention provides a display control method and device in a game, electronic equipment and a storage medium. The display control method is applied to a server which can respond operation of user terminals, and provides operation image information of the game in a graphical user interface for the user terminals. The display control method comprises the steps that virtual character sets are responded to enter a current game scene, a privately-owned area-of-interest AOI layer corresponding to the virtual character sets is generated; the virtual character sets comprise contain at least one virtual character; a first control operation acting on the privately-owned AOI layer is responded, and a first operation image information is generated; and the first operation image information is synchronized to the user terminals corresponding to the virtual characters in the virtual character sets correspondingly, and the operation image information of the privately-owned AOI layer is presented on the graphical user interface of the user terminals. According to the display control method and device in the game, the electronic equipment and the storage medium, under the premise of meeting practical operation requirements of users, the problem of large calculated amounts of the server is solved.

The invention discloses a four-axis rotating jig which comprises a bottom plate, supports arranged on the two sides of the upper portion of the bottom plate, four-axis rotating devices arranged on the upper portions of the supports and a machining table connected with the four-axis rotating devices. Each four-axis rotating device comprises a four-axis base and a tailstock, wherein the four-axis base and the tailstock are connected with the corresponding support and arranged coaxially. The machining table is made of an aluminum plate and provided with a plurality of positioning holes. The four-axis bases and the tailstocks are effectively fixed through the bottom plate and the supports, and the four-axis rotating devices do not need to be frequently positioned and fixed, so that the procedure complexity is greatly lowered; the machining table is made of the aluminum plate and provided with the positioning holes so that workpieces of different sizes can be positioned, and adaptability is high; due to the facts that the aluminum plate is light and cutting and drilling are easy, when the positioning holes in the upper side of the machining table are too many and consequently the machining table cannot be used, the machining table can continue to be used after being cut, and the machining table does not need to be frequently replaced, so that the material utilization rate is increased.

The invention relates to a three-phase load flow state estimation method of a power distribution network. The method includes: (1) reading model data and transmission sections of the power distribution network, performing topological identification on the power distribution network to obtain a network topological structure of the power distribution network, and measuring each measuring point in the power distribution network to obtain data measurement values; (2) respectively computing three-phase load flows of the power distribution network according to the network topological structure to obtain a data computation value of each measuring point of the power distribution network; and (3) identifying according to residual between every data computation value and the data measurement value of the corresponding measuring point thereof, judging whether the data measurement values are bad data or not, if yes, correcting the data measurement values by the data computation values, and then analyzing and computing the power distribution network. By the state estimation method, good state estimation results can be obtained, and actual running requirements of the power distribution network can be met basically.

The invention relates to a heat supply unit combining a compression heat pump with a water heating device and a heat supply method of the heat supply unit. The heat supply unit comprises a compression heat pump system, the water heating device, a circulating water inlet-outlet pipe and accessories, and a hot water supply water inlet-outlet pipe and accessories; steam exhaust circulating water of a steam turbine of a cooling power plant flows into the compression heat pump system, carries out primary heating on heat supply water of a heat supply network, and the heat supply water on which primary heating is carried out is heated to the heat supply temperature in the water heating device to flow into the heat supply network. The characteristics that the compression heat pump is high in energy efficiency and simple in structure and a heat supply peak time period overlaps with a power grid low load time period are utilized, waste heat of circulating water of the power plant is recycled by means of the compression heat pump driven by electric energy so that the heat supply base load can be guaranteed, the heat supply water is heated by electric power or steam or other energy sources through secondary heating so that the peak load can be guaranteed, and therefore the problems a thermal power plant generates electricity for a heat supply heavy load, wind power is surplus, and power generation is forced to be abandoned are solved, operation procedures and the structure are simplified, heat supply cost is reduced, and the effects of energy conservation and environment protection are achieved.

The invention discloses a combined fluidized bed type gas-solid heat exchange device utilizing waste heat of furnace slag. The device comprises a gas-solid heat exchange body, and an air outlet is arranged at the top of the gas-solid heat exchange body. The device is characterized in that two partition walls are arranged in the gas-solid heat exchange body, connect a front faceplate with a rear faceplate of the same and divide a cabin inside the gas-solid heat exchange body into a left bubbling bed cabin, a spouted bed cabin and a right bubbling bed cabin, the left and right bubbling bed cabins are symmetrically arranged on two sides of the spouted bed cabin, the upper portions and the lower portions of the three cabins are communicated respectively, an independent air chamber is arranged at the bottom of each cabin, a dense-hole-type air distribution plate is arranged above the air chamber in the spouted bed cabin, a left air-cap-type air distribution plate and a right air-cap-type air distribution plate are arranged at the tops of the air chambers in the left and right bubbling bed cabins respectively, and the left air-cap-type air distribution plate is connected with the dense-hole-type air distribution plate through a second dense-hole-type air distribution plate and a first orthostomous section. The combined fluidized bed type gas-solid heat exchange device has good gas-solid heat exchange effect and can be widely applied in the field of steel and iron and power.

The invention discloses a pipeline type water treatment device for a landscape park and an installation method of the device. The pipeline type water treatment device comprises a pipe body and a filtration device, wherein the pipe body is internally provided with a precipitation chamber, a first purification chamber and a second purification chamber in sequence from right to left; a motor is arranged at the right end of the pipe body and is connected with a rotating shaft; a control panel is arranged on the top surface of the first purification chamber; a first partition plate is arranged between the precipitation chamber and the first purification chamber; a second partition plate is arranged between the first purification chamber and the second purification chamber; a height adjusting mechanism is arranged at the bottom of the pipe body. The installation method comprises the following steps: surveying and setting out, installation of the pipe body, installation of the filtration device, pipeline connection, and commissioning, operation and maintenance of the pipeline type water treatment device. The pipeline type water treatment device disclosed by the invention is simple in structure and high in practicability, not only can play an effect of purifying water, but also can be designed according to water qualities, sizes and scales of different landscape parks, and is small in occupied area and low in manufacturing cost. The installation method is simple and flexible and convenient to use.

The invention provides an energy-saving fertilizing vehicle which comprises a stirring mechanism, a power mechanism and a moving mechanism; the power mechanism comprises a driving gear wheel, a first transmission gear wheel, a second transmission gear wheel, and a third transmission gear wheel; the driving gear wheel is connected on a rotating shaft in a sleeved manner; the side wall of a pushing frame is in sliding connection with a support shaft; the support shaft is sleeved with the first transmission gear wheel and the second transmission gear wheel; the driving gear wheel is connected with the first transmission gear wheel through a chain; the end of a stirring shaft extending to the outside of a stirring box is connected with the third transmission gear wheel in a sleeved manner; the third transmission gear wheel is connected with the second transmission gear wheel through a chain. The structure building of the stirring mechanism, the power mechanism and the moving mechanism meets the requirement of energy saving, and stirring power is brought for the stirring mechanism while the fertilizing vehicle is pushed to move forward; at the same time, mixing stirring can be performed according to different orders of magnitude of fertilizers, and working of the power mechanism is not affected, so that the use efficiency is indirectly increased, and the investment rate is relatively reduced.

The invention discloses a full automatic wireless remote control system of a welding manipulator. The full automatic wireless remote control system of the welding manipulator comprises a wireless remote control and a receiver, and a press key is arranged on the wireless remote control. The full automatic wireless remote control system of the welding manipulator is characterized in that the press key is a cordwood long stroke press key, and the wireless remote control is provided with an emergency stop switch; the receiver is provided with a central processing unit (CPU) receiving module, a CPU data processing module, a CPU self-checking module, a transmitting module and a feedback signal module, wherein the CPU receiving module, the CPU data processing module, the CPU self-checking module, the transmitting module and the feedback signal module are connected in an electrical mode; an automatic submerged arc welding machine, a wire feed head and a relay contactor are all connected with the receiver in an electrical mode; and the wireless remote control and the receiver adopt wireless transmission. The full automatic wireless remote control system of the welding manipulator is efficient, high in speed, and the wireless remote control is convenient to operate and accurate in control, at the same time, working links are reduced, and the welding quality is ensured.

The invention discloses a method for supervising approval operation, authorization operation and form operation. The method comprises the following steps: creating roles in a system, wherein the roles are independent individuals, and in the same period, one role can only associate with only one user, and one user can associate with one or more roles; when the role executes approval / authorization / form operation, recording the role executing the operation; setting one or more roles as a monitoring role / monitored role, and setting a monitored role / monitoring role for each monitoring role / monitored role; and through the monitoring role, monitoring the approval / authorization / form operation recordings executed by the monitored role. The monitoring and monitored subjects are independent individual roles respectively; work content of users / staffs is distinguished according to post number / station number, and each post number / station number is corresponding to one independent individual role; setting of supervision authority is realized for each role; monitoring and monitored authorities are subjected to refined authorization; and the method meets actual operation and use requirements of enterprises.

The invention discloses a capacitor discharging tool, which comprises an insulated operation bar, a metal grounding bar, an elastic connector, a connection wire and a grounding wire, wherein the insulated operation bar is connected with the metal grounding bar through the elastic connector; two ends of the elastic connector are fixedly connected with the top end of the insulated operation bar and the bottom end of the metal grounding bar respectively; the top end of the connection wire is fixedly arranged at the bottom end of the metal grounding bar; the bottom end of the connection wire and the top end of the grounding wire are fixedly arranged on the insulated operation bar; the bottom end of the connection wire is fixedly connected with the top end of the grounding wire; the bottom end of the grounding wire is provided with a grounding end wire clamp for grounding; the top end of the metal grounding bar is provided with a linear extending sharp part and a bent extending hook part; and one end of the sharp part is fixedly connected with one end of the hook part. The traditional discharging mode is broken, the spring device is additionally arranged between the discharging metal part and the insulation rod, and through the bent angle and the recoverability of the spring, the discharging operation direction is changed, and the operation is more humanized.

The invention discloses a sample introduction disc for water quality detection. The sample introduction disc comprises a base, an accommodating cavity, a stand column, a sample introduction disc body and a rotary driving mechanism, wherein a plurality of groups of positioning holes are formed in the sample introduction disc body and are uniformly distributed along the circumferential direction; a first sliding groove is formed in the side wall of each positioning hole, a clamping block is slidably mounted in the first sliding groove, the first end of the clamping block extends into the positioning hole from the side wall of each positioning hole, an elastic body is arranged between the clamping block and the sample introduction disc body, a second sliding groove is formed in the stand column, a sliding block is mounted in the second sliding groove, and a support body is hinged to the sliding block; a bracket body driving mechanism is arranged on the sliding block; a cleaning needle with a downward head part is arranged on the bracket body, and is positioned above the positioning holes; the stand column is further provided with a sliding block lifting driving mechanism. The sample introduction disc has the advantages that the stability is good, the sample bottle does not shake, collide or splash in practical application, the problems that the sample bottle is prone to colliding and cross contamination is prone to occurring are solved, and the sample introduction disc has the advantage of being safe and stable in work.

The invention relates to combined type cold slag device. It includes cold slag room, air chamber, and water cooling packing auger cold slag machine. The cold slag room is set two divider to divide it into three cooling room. The second divider lower is set hole. The first cooling room is spouted bed structure of which bottom is set close-hole type grid plate on which the main slag discharge pipe is set. The back two cooling rooms are set water cooling tube bank, and funnel cap type grid plate at the bottom. The invention can satisfy the demands of big feeding coal granularity, actual motion and macro-scale operations technology development for circulating fluidized bed boiler.

The invention discloses an information processing method and an electronic device. The method comprises the steps of obtaining at least one display record of at least one piece of content displayed by a first display unit of the electronic device in a first display mode; obtaining at least one piece of related content related to the at least one piece of the content when a current display mode is a second display mode different from the first display mode; and sending the at least one piece of the related content to a second display unit externally connected to the electronic device in the second display mode so as to display the at least one piece of the related content through the second display unit. Through the technical scheme provided by the method and the electronic device, the technical problem that the electronic device cannot ensure content browsing continuity during display mode switching in the prior art is solved.

The invention discloses a trepanning device for a specially-shaped die casting. The trepanning device comprises a handling frame and a baseplate, wherein a processing part is placed on the top wall ofthe baseplate; a cavity and three transverse grooves are formed in the baseplate; the three transverse grooves are symmetrically distributed on the outer side of the cavity and communicate with the cavity; a first servo motor is mounted on the bottom wall of the baseplate; a driving end of the first servo motor extends into the cavity and is equipped with a first bevel gear; a fixed threaded rodis arranged in each transverse groove; and the end, close to the cavity, of each fixed threaded rod extends into the cavity and is equipped with a second bevel gear. Owing to the arrangement of all structures, the processing part can be trepanned in a horizontal direction and a vertical direction; meanwhile, an inclined hole can be formed in the processing part as required, so that actual operation demands are met, the flexibility of the trepanning device is improved, and the operation range of the trepanning device is broadened; and the trepanning device has the characteristics of being simple in structure and easy to operate.

The invention provides a data processing method, device and system, which relate to the technical field of data processing so as to reduce the operating cost. The data processing method comprises steps: A first KPI (Key Performance Indicator) is acquired; data processing strategies are acquired, wherein the data processing strategies comprise a to-be-processed object adding strategy and a distribution strategy; the to-be-processed object adding strategy and the distribution strategy are indicated to be executed, execution of the to-be-processed object adding strategy and the distribution strategy is monitored, and monitored data are acquired; a second KPI is acquired according to the monitored data; and the first KPI and the second KPI are compared, and when the deviation degree between the first KPI and the second KPI exceeds a preset threshold, the to-be-processed object adding strategy and / or the distribution strategy are / is adjusted. The operating cost can be reduced.

The present invention provides a detachable ETFE heat-sealing machine frame, comprising two supporting side plates, and a supporting top plate, an intermediate operating platform and a supporting bottom plate are respectively detachably installed between the two supporting side plates. A plurality of installation frames for installing heat-sealing mechanisms are connected on the supporting top plate, and the mounting frames include a control panel connected with the supporting top plate and a heat-sealing mechanism mounting plate connected with the control panel. The shape of the support top plate is matched with a rectangular ring, the rectangular ring is sleeved on the support top plate, and the installation frame is adjustable on the support top plate through the rectangular ring. The detachable frame of the ETFE heat-sealing machine of the present invention has simple structure, good stability, is convenient for loading and unloading, and is convenient for adjusting the installation positions of a plurality of heat-sealing mechanisms installed on the frame.

The invention discloses a pipeline type water treatment device for a landscape park and an installation method of the device. The pipeline type water treatment device comprises a pipe body and a filtration device, wherein the pipe body is internally provided with a precipitation chamber, a first purification chamber and a second purification chamber in sequence from right to left; a motor is arranged at the right end of the pipe body and is connected with a rotating shaft; a control panel is arranged on the top surface of the first purification chamber; a first partition plate is arranged between the precipitation chamber and the first purification chamber; a second partition plate is arranged between the first purification chamber and the second purification chamber; a height adjusting mechanism is arranged at the bottom of the pipe body. The installation method comprises the following steps: surveying and setting out, installation of the pipe body, installation of the filtration device, pipeline connection, and commissioning, operation and maintenance of the pipeline type water treatment device. The pipeline type water treatment device disclosed by the invention is simple in structure and high in practicability, not only can play an effect of purifying water, but also can be designed according to water qualities, sizes and scales of different landscape parks, and is small in occupied area and low in manufacturing cost. The installation method is simple and flexible and convenient to use.

The invention provides a gesture-based text processing method and system. The method comprises the following steps of identifying a target gesture for processing a target text, determining the number of fingers forming the target gesture and finger actions, determining an operation object and an operation mode corresponding to the target gesture by using the number of fingers forming the target gesture and the finger actions, the operation object being a character, a word, a sentence, a segment, a full text or a cursor in the target text, and in response to the target gesture, processing the target text based on the operation object and the operation mode corresponding to the target gesture. In the scheme, different operation modes and operation objects with different granularities are set according to different finger numbers and finger actions. The operation object and the operation mode corresponding to the target gesture are determined, and the target text is processed in response to the target gesture, so that richer operation modes and the operation object with finer granularity are provided for the visually impaired person, the actual operation requirements of the visually impaired person are met, and the user experience is improved.

The invention discloses a plate cutting machine for interior decoration, which comprises a base, a support seat is fixed on the top of the base, a driving part and a cutting part are respectively installed on both sides of the support seat, and the driving part and the cutting part are respectively installed. The cutting parts are connected with a shaft that runs through the support seat. The inside of the cutting part is provided with a cutting wheel protruding from its top surface. The front and rear sides of the support seat are slidingly connected with positioning plates, and the two positioning plates The top of the support seat is connected with an "L"-shaped limiting plate, the top of the limiting plate is equipped with a positioning part for positioning the position of the plate, and the top of the support seat is slid to be provided with a placement plate between the two positioning plates, so that It can place the plate on the plate, and adjust the relative position of the movable plate according to the actual cutting position to make the cutting more accurate. At the same time, it can protect the cutting wheel to prevent accidental injury when it is not in use, making it better to meet the actual operational needs.

The invention discloses a current protection control method for a 24kV vacuum circuit breaker, which comprises the following steps: 1) sampling is delayed in case of sudden power up to avoid inrush current when the stage line is suddenly closed; 2) a virtual value of the current in the circuit is calculated after stable operation; 3) if the virtual value does not exceed a setting value, sampling is redone; if the virtual value exceeds the setting value, whether the current in the line is inrush current, over current or short circuit is judged; if the current is inrush current, the sampling isredone and if the current is over current or short circuit, protection is carried out. A current protection control device for a 24kV vacuum circuit breaker which fulfills the current protection method comprises a power module, a single chip microcomputer, an A, C phase current transformer, an electric quantity signal input module, a dial switch status input module, a relay output module and a trip coil drive module. The method and the device of the current protection control device have accurate control and the purpose thereof is easy to be realized.