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36results about How to "Improve incident handling efficiency" patented technology

Main station type small current grounding control method

The invention discloses a main station type small current grounding control method. Remote measure and communication information collected by an energy management system are utilized at a dispatching main station end, a small current grounding bus is automatically monitored according to the line voltage change condition, the abnormal warning is automatically given, the network topology analysis is combined, a local topology search method is adopted, a wire outlet operation switch of a target bus is analyzed and given, meanwhile, breaking-off wire selection strategies such as capacitor priority, loss load minimization, important load guarantee and the like are provided, the system can automatically generate breaking-off sequence suggestions of the circuit breaking-off test according to the selected strategies, a switch in the breaking-off strategies is subjected to on-off operation through sequence remote control, the bus voltage change condition after the operation is monitored, and whether the single-phase grounding is eliminated or not is judged, so a single-phase grounding circuit is analyzed and judged. The method has the advantages that a computer auxiliary means is provided for the single-phase fault processing mode of regional dispatching monitoring personnel, the efficiency on accident handling is improved, and the power supply reliability is forcefully guaranteed.
Owner:NARI TECH CO LTD

Accident planning expert system applied to steel mill

The invention relates to an accident planning expert system applied to a steel mill, which belongs to the field of the management of iron and steel enterprises. The system consists of a client interface, a knowledge acquisition interface, a reasoning mechanism, an interpretative program, a database and a knowledge base, wherein the client interface is oriented to a user of the planning expert system; the knowledge acquisition interface is oriented to a knowledge engineer and used for adding, modifying and maintaining the knowledge base; the reasoning mechanism reasons a planning process according to knowledge in the knowledge base; the interpretative program explains and describes a plan reasoning process; the database is used for storing corresponding production data or history data; the knowledge base is the integration of stored planning rule knowledge; and the realization process of the system comprises a knowledge acquisition step, a semantic network expression step, a frame expansion step, a rule base establishment step and a mechanism reasoning step. In-time and correct expert treatment measure and method can be provided for a failure occurs in the production process of the steel mill and a human experience-based accident treatment mode of the iron and steel enterprises is replaced by a computer expert system treatment mode, so that the accident treatment efficiency of the production process is improved.
Owner:QINHUANGDAO SHOUQIN METAL MATERIAL +2

Automatic collecting and publishing device for grid fault information

The invention provides an automatic collecting and publishing device for grid fault information. The automatic collecting and publishing device comprises a central processing unit, a remote signaling collecting module, a logical judging module, a remote metering collecting module, a fault information outputting module and a communicating interface; remote signaling signals in an automatic system can be collected and dispatched in real time by the remote signaling collecting module, remote metering signals in the automatic system can be collected and dispatched in real time by the remote metering collecting module, and collected information can be analyzed by the logical judging module; when a grid system is in fault, the central processing unit can compare the collected information with a criterion set by the logical judging module to determine whether the grid system is really in fault; the remote metering collecting module can calibrate a remote metering quantity of faulty equipment and a current state of the equipment, and the fault information outputting module can push specific fault information to a regulating diary system through the communicating interface after the remote metering quantity of the fault equipment and the current state of the equipment are correctly calibrated. The automatic collecting and publishing device can greatly reduce accident handling time of a regulator and improves accident handling efficiency of the regulator.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO WUXI POWER SUPPLY CO +2

Intelligent safety protection system for liquefied natural gas terminal tank zone

The invention discloses an intelligent safety protection system for a liquefied natural gas terminal tank zone, and belongs to the technical field of tank zone safety systems. The liquefied natural gas terminal tank zone comprises a gas detection module, a leakage alarm module, a fire detection module, a fire alarm module, a TV monitoring module, a broadcasting system module and an access controlmodule, wherein the gas detection module is used for monitoring gas concentration in a tank zone; the leakage alarm module is used for making an alarm when the gas concentration value exceeds the limit; the fire detection module is used for detecting the temperature and smoke concentration in the tank zone; the fire alarm module is used for making an alarm when the temperature or smoke concentration exceeds the limit; the TV monitoring module is used for recording an accident site image and playing the accident site image on a large screen; the broadcasting system module is used for playing voice information; and the access control module is used for controlling a controlled gate at each entrance/exit in the tank zone. Through adoption of the intelligent safety protection system, in the case of an accident, accident information can be played through the large screen and a broadcasting device, and meanwhile all controlled gates are opened simultaneously to instruct people in the tank zone to handle with a dangerous source or get out of a dangerous zone.
Owner:天津渤化南港码头仓储有限公司

Method and system for preventing secondary traffic accidents on highway

The invention provides a method and a system for preventing secondary traffic accidents on a highway. The method comprises steps as follows: acquiring and comparing driving speeds of two front and rear adjacent motor vehicles on the same lane of the highway, calculating the distance value between the two vehicles when the driving speed of the rear vehicle is larger than that of the front vehicle,calculating the safe distance value between the two vehicles according to the driving speeds of the two vehicles, performing comparison to judge whether the distance value is smaller than the safe distance value, further judging whether the distance between the two vehicles is reduced to 0 if the distance value is smaller than the safe distance value, determining that rear-end collision happens totwo vehicles if the distance between the two vehicles is reduced to 0, generating a pre-warning message, acquiring a display device corresponding to the position where rear-end collision happens, andsending the pre-warning message to the display device for display. Early warning is realized when traffic accidents happen on a traffic accident frequent occurrence road section, safe travel of driving vehicles on the road section is guaranteed, secondary traffic accidents are avoided, a traffic management department is assisted in timely finding traffic accident information, and the accident handling efficiency of the traffic management department is improved.
Owner:ANHUI KELI INFORMATION IND +1

Dispatching side transformer substation small-current single-phase grounding automatic line-selection method

The invention discloses a dispatching side transformer substation small-current single-phase grounding automatic line-selection method. The method comprises the following steps: judging whether one ofthe following three conditions is satisfied: zero-sequence voltage 3U0 is greater than 15V, phase voltage (U1, U2) is greater than 7kV and U3 is less than 5kV, or a bus is in grounding action and thesustained computing period is equal to 2; if one of the three conditions is satisfied, storing bus voltage, recording line load and zero sequence current of the line under each of a running state anda fault state; performing running line comparison satisfaction: enabling the difference obtained by subtracting IN0 initialization from IN0 fault to be unequal to 0, and the MAX(IN0 fault) and MAX(IN0 fault-IN0 initialization), or MAX(2*IN0 fault-IN0 initialization), outputting a line ID, and giving an alarm instruction, ending the operation. The method disclosed by the invention has the advantages that the ground fault line can be quickly and accurately determined when the system is in single-phase grounding, the accident processing efficiency is improved, the power grid supply stability isimproved; the power supply reliability of the electric user is guaranteed, and the comprehensive economic loss caused by power failure or unqualified electric energy quality is reduced.
Owner:WENZHOU ELECTRIC POWER BUREAU +2

Phase modifier rotor packing cooling water leakage monitoring and analyzing device and application method

The invention discloses a phase modifier rotor packing cooling water leakage monitoring and analyzing device and an application method. The device comprises a processor module, an alarm module, a flowmonitoring module which is used for monitoring the water outflow flow of phase modifier rotor packing, and a water leakage monitoring module which is used for monitoring the water leakage of a phasemodifier excitation chamber; the processor module comprises a processor unit and a signal conversion unit; the input end of the processor unit is connected with the output end of the flow monitoring module and the output end of the water leakage monitoring module; and the output end of the processor unit and the output end of the water leakage monitoring module are connected with the control end of the alarm module through the signal conversion unit. The drainage flow of the phase modifier rotor packing is visually displayed, packing adjustment can be reminded in time, meanwhile, the leakage condition of packing cooling water is monitored in real time, and the accident handling efficiency is improved. The device and method have the advantages of simple structure, low cost and high expansibility.
Owner:STATE GRID HUNAN ELECTRIC POWER +2

An edge stretching machine controlling device, a method of detecting edge stretching wheels winded with molten glass and a system

The invention provides an edge stretching machine controlling device, a method of detecting edge stretching wheels winded with molten glass and a system, and relates to the technical field of liquid crystal glass production. The main objective of the invention is to increase the processing efficiency after the edge stretching wheels are winded with molten glass. According to a technical scheme mainly adopted, the controlling device includes a fixing support used for connecting an edge stretching machine or an edge stretching machine hanger; and a front baffle plate locking mechanism used for fixing a front baffle plate and disposed on the fixing rack. After an accident that the edge stretching wheels are winded with the molten glass, the front baffle plate locking mechanism moves outward along with the edge stretching machine in a process that the edge stretching wheels of the edge stretching machine are pulled outward from the inside of a setting furnace. Compared with the prior art, manual opening of a pressing button on the front baffle plate is not needed, an operation step is saved, and the accident processing efficiency is increased.
Owner:WUHU TUNGHSU PHOTOELECTRIC SCI & TECHCO +1

A single-phase-to-ground fault line selection and location method in distribution network based on generalized differential

The invention discloses a generalized differential-based single-phase earth fault line selection and positioning method for a power distribution network. The method comprises the steps of starting the single-phase fault line selection and positioning process on the condition that a single-phase voltage of a bus is decreased while the other two phase voltages of the bus are increased; numbering zero-sequence current transformers; comparing collected zero-sequence current data uploaded by the zero-sequence current transformers at the head and tail ends of each outgoing line in all collected corresponding data; determining a fault line according to a comparison result; respectively comparing data uploaded by every two adjacent zero-sequence current transformers in the selected fault line through the inward-tightening and fine-tuning method; determining the fault position according to the comparison result; and displaying the selected fault line and the fault positioning result. According to the technical scheme of the invention, on the premise that no equipment is increased, the single-phase earth fault line of the power distribution network can be selected and positioned. In this way, the defects in the prior art that the conventional fault line selection method is low in sensitivity and reliability and the line selection fails due to the overcompensation of an arc suppression coil can be overcome. Meanwhile, the power supply interruption caused by grounding test pull is reduced.
Owner:STATE GRID SHANDONG ELECTRIC POWER COMPANY WEIFANG POWER SUPPLY +1
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