479results about "Supervisory desks/panels" patented technology

The invention relates to an area intelligent power distribution network system. Based on a management platform with a main station, a feed line, a power distribution network and centralized checking in one body, data in an area is centralized in a low voltage distribution information system for processing. The low voltage distribution information system is background application software with distribution monitoring metering, low voltage reactive compensation, a user electric quantity centralized checking system, a load control management system, and harmonic wave monitoring analysis in one body, and automation of acquisition and management of low voltage distribution network data is realized. According to the system, intelligent safety monitoring is carried out on a 10 kV distribution line and a distribution terminal device, simultaneously accurate and scientific intelligent monitoring is carried out on a 400 V distribution line, an operation status of distribution transform is grasped and reasonable management is carried out according to a requirement, by utilizing information positioning and navigation of the power distribution network, timely reaction can be carried out on an equipment line or fault, the fault is isolated automatically, distribution recovery is rapid, power supply quality is improved, and intelligent automatic management and control of an area intelligent power distribution network are realized.

The invention discloses a transformer substation based on a model converter and a quick scheduling master station converting method. In the invention, after CIM (CompuServe information manager) and SVG (scalable vector graphics) are seamlessly connected with a database of the scheduling master station, the scheduling master station can dispatch the built database to obtain the display of a transformer substation model and graphics from an interface. Therefore, different specification information IEC61850 and IEC6190 can be converted at the terminal end of the transformer substation, and model exchange files can be generated correspondingly; with the generation of the model files, the secondary device model information of the transformer substation and the demand information of the master station are tightly combined. Meanwhile, through the SVG graphic files, the primary device topologic information of the transformer substation and the exchange information content of the master station can be integrated together. Finally, the technical innovation target of seamless communication is realized through a corresponding mapping mechanism.

The invention relates to a visualized implementation method oriented to operation load state monitoring of a distribution network. The visualized implementation method comprises the following steps of: (1) setting a circuit state monitoring limit value and a load level color configuration of the distribution network; (2) selecting circuits to be monitored, acquiring the number and names of the circuits to be displayed, and carrying out sector-shaped partitioning on an initial circle according to the number of the circuits; (3) carrying out topological analysis on the distribution network to form a tree network of the distribution network; (4) carrying out breadth and depth topological search on the circuits to form a tree structure level record; (5) drawing a circuit level relationship graph according to the tree structure level record; (6) calculating load ratios of the circuits according to the measuring data of the circuits; and (7) filling a sector-shaped region where the circuits are located according to the load ratios and the load level color configuration. According to the visualized implementation method disclosed by the invention, the generated visualized graph is adaptive to the characteristics of the distribution network; simple and intuitive expression and high information enrichment are achieved; and the load monitoring capability of a real-time monitoring system of the distribution network can be remarkably promoted.

The invention is concerned with the monitoring system of the current rush protector, includes the terminal monitoring equipment and the SPD demands to be monitored at least one, which can communicate with the terminal monitoring equipment through the electric power line. It works as: the terminal monitoring equipment sends out the scanning single following standard timing or special request, and through the second signal send/receive device to the power supply circuit, reaches the scan signal receiving SPD, when inspecting right overpasses, it can send the working state to the power supply circuit to the terminal monitoring equipment. Even there is abnormity of the SPD, it can send the abnormity data to the power supply circuit automatically, for intermit requesting and the terminal monitoring equipment can determine to report or intermit the circuit by analyzing the SPD data. The SPD is also with the capability of intermitting.

The invention provides an electric network power flow section visualization adjusting method based on transient stability calculation. Long-time simulation on an electric network is carried out based on a transient stability program; during the simulation process, a user sends the mode changing information to the transient stability simulation program by changing the running topology of the electric network or adjusting power generation, charges and the like at a sending end and a receiving end; the simulation program quickly responds to the change of the running mode of the electric network, calculates various state quantities of the electric network, obtains the transmission power of the power flow section in real time, and judges whether the section power achieves the adjusting target or not; furthermore, during the adjusting process, the stability of the system can be observed in real time; and the stability verification can be carried out. During the simulation process, various exhibiting modes are provided for carrying out visualized exhibition on a key busbar of the sending end and the receiving end, and the power value of the transmission section. By adopting the method that the user continuously operates and adjusts, the transient stability simulation program quickly responds, an interface exhibits section adjusting results visually and directly, the aim of adjusting and watching the section adjusting results and judging whether the result achieves the visualized adjusting method of the control target simultaneously can be achieved, the high interaction between the user and the simulation program is realized, and the section adjusting efficiency is improved.

The invention discloses an intelligent tour inspection method for the state of a substation hard pressing plate, which comprises the steps of (1) hard pressing plate state model building and (2) hard pressing plate state tour inspection. The step of (1) hard pressing plate state model building further comprises the sub-steps of a, acquiring substation latitude and longitude information; b, acquiring power screen cabinet fingerprint information; c, acquiring a state of the pressing plate; and d, uploading the acquired substation latitude and longitude information, the power screen cabinet fingerprint information and the pressing plate state to a cloud platform of a centralized control center, enabling the acquired substation latitude and longitude information, the power screen cabinet fingerprint information and the pressing plate state to correspond to an inputted traditional name of the pressing plate, and saving into a hard pressing plate state model. The step of (2) hard pressing plate state tour inspection further comprises the sub-steps of a, acquiring the substation latitude and longitude information, the power screen cabinet fingerprint information and the pressing plate state by the tour inspection personnel through a handheld intelligent terminal equipped with an APP; b, uploading the information acquired by the intelligent terminal to the cloud platform and matching the acquired information with the stored hard pressing plate state model; and c, performing intelligent prompting and alarming according to a matching result. Automatic identity recognition for the hard pressing plate installed in a power screen cabinet and intelligent judgment for the state of the pressing plate can be realized according to the method.

The invention relates to an economical dispatch control system for a cascade power station. The system is characterized in that a host server, a history server and a voice workstation serve as an engineering work station, and an operator workstation, a large-screen projection and a GPS (Global Positioning System) system are connected in parallel on a main control line; and through the reverse regulation of an upper-level large capacity power station by a small capacity power station, a load difference is safely and smoothly transferred to another adjustable power station. By using the economical dispatch control system for the cascade power station provided by the invention, the flow of an upper-level power station unit can be effectively controlled through the flow of a lower-level power station; the water rate is lowered, the economic benefit of the power station is increased, the cost recovery time is effectively reduced, and thus the current low-carbon economic development trend is conformed to.

The present invention relates to a power distribution and transformation monitoring terminal and its purpose belonging to the technical field of transformer monitoring equipment, which is suitable for operation monitoring of public transformers, special transformers and power distribution lines and is arranged on one side of a power transformer and comprises a CPU module, a power source sampling module, a modem module and a display module connected with each other. An input terminal of the CPU module is connected with an output terminal of the power source sampling module. An input terminal of the display module is connected with an output terminal of the CPU module. An output terminal of the CPU module can transmit operation data to a power distribution and transformation monitoring back-end through RS232 and RS485 communication line, the modem, a mobile network and a wire or wireless meter reading equipment. A high-speed microprocessor unit realizes scale conversion, greatly reduces complexity of peripheral circuits and collects and judges operation date of the power transformer detecting terminal device, thus ensuring lower cost and high performance/price ratio.

The present invention relates to a transformer substation rotating equipment charged state display method based on a three dimensional model. The method comprises the steps of 1) obtaining the three dimensional model data of the transformer substation rotating equipment and establishing the three dimensional model of the transformer substation rotating equipment; 2) obtaining the operation parameters of the transformer substation rotating equipment according to the transformer substation rotating equipment monitoring points, and combining the three dimensional model of the transformer substation rotating equipment and the operation parameters of the transformer substation rotating equipment via a three dimensional model development platform; 3) determining the charged states of the rotating equipment according to the operation parameters of the transformer substation rotating equipment and a topology model of a power distribution network; 4) displaying the charged states and the three dimensional model of the transformer substation rotating equipment on a on-site three dimensional terminal three-dimensionally. Compared with the prior art, the transformer substation rotating equipment charged state display method based on the three dimensional model of the present invention has the advantages of being good in economic benefit and few in working procedures, being simple, easy, accurate and visual, etc.

The invention discloses a real-time monitoring system of a low-voltage power distribution cabinet. The real-time monitoring system comprises a data acquisition module, a data analysis module, a control module, an execution module, a communication module, a warning module and a background, wherein the data acquisition module comprises a temperature monitoring unit, a voltage transformer, a currenttransformer and a humidity monitoring unit, the temperature monitoring unit is used for monitoring temperature change in a cabinet body and temperature change of a cable and a surface of an instrumentin real time and timely reflecting the detected data to the data analysis module, the voltage transformer is used for monitoring voltage change in the circuit, the current transformer is used for monitoring current change in the circuit, and the humidity monitoring unit is used for monitoring a humidity index in the cabinet body in real time and timely reflecting the humidity index to the data analysis module. By the real-time monitoring system, the change of each numerical value in the power distribution cabinet can be monitored in real time, the safe working of the power distribution cabinet is ensured, the trouble of periodic manual check is omitted, and a safety accident is reduced.

Provided is a virtual terminal graphical display method of field debugging of an intelligent transformer substation. The virtual terminal graphical display method of field debugging of the intelligent transformer substation comprises the following steps of collecting data information of a virtual terminal, a cable, an optical cable and a terminal wiring diagram, checking the collected data information, outputting a check result, correcting the wrong data information, storing the collected data information in a database, generating a cable label, and carrying out graphical displaying on the virtual terminal. The virtual terminal graphical display method of field debugging of the intelligent transformer substation effectively solves the problems that the data informatization rate is low and the automation rate is low in the field debugging process of the intelligent transformer substation in the prior art, avoids repeated labor, saves manpower and material resources and relieves burdens of debugging personnel. The virtual terminal graphical display method of field debugging of the intelligent transformer substation improves the field debugging efficiency and working efficiency by improving the electronization and utilization rate of field debugging data.

An LED display system based on a power network is disclosed, relating to an LED display system connected to the same power network wire and sharing one power switch, particularly to linear display devices such as LED guardrail tubes and an LED asynchronous display screen. The power switch of the LED display system is a power zero-crossing switch provided with a CPU (central processing unit) counting circuit for counting cycle characteristic signals, wherein the power switch matches with conventional time-base circuits such as a crystal oscillator to generate a mixed time-base signal, for keeping the synchronization of system operation. The LED display system is divided into a plurality of same standard modules to facilitate production while being used for the LED asynchronous display screen, and each module has own serial number; the LED display system has no need to utilize a controller and can compile a complex application program while being used for the linear display devices suchas LED guardrail tubes. Each guardrail tube independently works as well as can realize the cross display of various complex display methods and realize full-colour and grey-scale control.

The invention discloses a concentrated monitoring type light-storing micro-grid solar photovoltaic generating system. The system is that the output of a photovoltaic cell panel is connected with the input side of a grid-connected and off-grid inverter; a charge/ discharging interface of a storage battery is connected with the grid-connected and off-grid inverter; the load side output of the grid-connected and off-grid inverter is connected with an interface in the general power input side of a double-power change-over switch; the interface in the general power output side of the double-power change-over switch is connected with the load; the grid-connected side output of the grid-connected and off-grid inverter is connected with a power grid, and a backup power input side interface of the double-power change-over switch is synchronously connected to the power grid; a backup power output side interface of the double-power change-over switch is integrally connected in series with the general power output side interface of the double-power change-over switch, so as to provide power to the load. According to the system, all devices are arranged in an integral grid-connected cabinet, beside a photovoltaic cell panel; the whole system can be used for remotely managing through a concentrated monitoring module as well as flexibly switching the grid-connected and off-grid work.

The invention discloses a switch cabinet status indicator with busbar temperature measurement, and a measuring method thereof. The switch cabinet status indicator is composed of a microprocessor, a liquid crystal display and voice driving circuit, a humiture acquisition circuit, an infrared temperature acquisition circuit, a switching value acquisition circuit, a display and voice alarm circuit, a human body induction circuit, a control output circuit and a communication interface circuit, wherein the humiture acquisition circuit and the infrared temperature acquisition circuit are respectively connected with the display and voice driving circuit, the control output circuit, the communication interface circuit and a memory through an A/D (Analog to Digital) conversion circuit and the microprocessor, and the microprocessor is also connected with the switching value acquisition circuit. By adopting the structure and method, not only indication of the on off status of a breaker of the switch cabinet is completed, but also the temperature of the busbar of the switch cabinet is tested by the infrared temperature measurement technique, the measured temperature value is judged and alarmed, the designed structure is simplified, and the reliability of products is improved.

The invention relates to a power grid real-time information three-dimensional dynamic intelligent display system and belongs to the smart grid field. The system comprises a 3D graphics processor, a database server, a control server, an information display module, an information display control management module, an information display mobile control module, a large screen, a large screen control module and a data communication module; the 3D graphics processor is of a distributed structure, the display resolution of the 3D graphics processor is matched with the resolution of the large screen,so that the 3D graphics processor can realize the conversion of data and graphs, display 3D scenes, and display real-time information on the large screen in a centralized manner; and the database server exchanges data with the business systems of users so as to provide data display data and information. According to the system of the present invention adopted, a three-dimensional display technology is utilized, texts, graphs, videos, animations and other expression forms are combined together to perform centralized, dynamic, real-time and thematic display of power grid dispatching operation data, and therefore, the external display capability of a power grid can be effectively improved.

The invention relates to an automatic power distribution monitoring terminal convenient in disassembly and assembly. The terminal comprises a box body (101), wherein a box door of the box body (101) is provided with an inner box door (102) and an outer box door (103); the inner bottom of the box body (101) is provided with two parallel placement strips (1.1) and an inverted L-shaped hold-down strip (1.4); one end of the hold-down strip (1.4) is connected with the placement strips (1.1), and the other end of the hold-down strip (1.4) is connected with a connecting plate (1.3); the inner top of the box body (101) is vertically provided with a hanging strip (2.1) which is connected with a frame-shaped mounting rack (2.2); a back plate of the box body (101) is horizontally provided with a sliding rail (3.1); the sliding rail (3.1) is provided with multiple connecting terminals (3.7); a clamping block (3.3) is arranged on the sliding rail (3.1) in a clamping manner. The automatic power distribution monitoring terminal convenient in disassembly and assembly has the advantages of modular installation, good waterproofing and heat-dissipation performances and non-interruption continuous operation capability.

A method for realizing distribution network load automation acquisition and displaying by using a load control terminal is disclosed. The method comprises the following steps that: 1). a distribution network master system sends a calling message containing concerned stoichiometric point information to a metering automation preposition system and the metering automation preposition system forwards the calling message to a corresponding metering terminal according to the stoichiometric point information recorded in the calling message; 2). After receiving the calling message, the metering terminal sends a response message including telemetry data to the metering automation preposition system and then the metering automation preposition system sends the response message to the distribution network master system; 3). the distribution network master system receives the response message and outputs to a user terminal to display. In the invention, the metering system is used to collect the data so that a cost problem can be solved. For the concerned metering terminal, an automatic calling and measuring mechanism is used so as to solve the problem of bad real-time performance of acquiring the historical data from the metering system can be solved and data transmission quantity can be relatively reduced. Wireless communication flow fees can be saved and pressure of the metering system can be reduced.

A switchgear assembly provides on-board documentation and includes a switchgear adapted to distribute electrical power to a plurality of loads. An industrial computer includes storage, a web server service and a wireless broadcasting device. The storage stores switchgear specific documentation. A mobile computing device wirelessly communicates with the industrial computer through the wireless broadcasting device. The mobile computing device includes a web browser and the documentation is provided to the mobile computing device by the web server service.

The invention relates to a marine large-capacity main distribution board control screen. The marine large-capacity main distribution board control screen is characterized in that the interior of a cabinet body is divided into an upper part and a lower part through a metal partition plate. An instrument, a control panel and a control loop component are placed on the upper half part, and a busbar and a current transformer are arranged on the back portion of the lower half part of the cabinet body, wherein the busbar is placed on the lower back portion of the partition plate and is located in the middle of the whole cabinet body. A breaker and an external amphenol connector strip are installed on the front side of the lower half part of the cabinet body from top to bottom respectively, a door plate on the lower portion of the front side of the cabinet body and an upper cover plate and a lower cover plate on the back side of the cabinet body are provided with ventilation structures, and only a position, opposite to the busbar, on the metal partition plate between the upper half part and the lower half part is provided with a ventilation structure. The problems that large-capacity marine controlling devices cannot be installed due to the small installation space and are inconvenient to maintain are solved, the demands for electric and heat dissipation are combined, the space is utilized reasonably, and the maximum installation space is allocated. The marine large-capacity main distribution board control screen can be applied to ordinal marine electric power stations and can also be popularized and applied to other high-capacity power stations which are controlled complexly.

A computerized power management control system (10) includes a virtual modular relay device (82) for providing input and output data to and from a corresponding, actual modular relay device (47 or 49). Virtual modular relay device (82) is displayed in a window (90), with the upper left-hand corner of window (90) including a graphical depiction (92) of the modular relay device. Immediately below the graphical depiction (92) is a communications status indicator (94), which shows the status of communications (connected/disconnected) between the virtual device (82) and an inter-process communications server (52). Various fields (96) appear along the left-hand side of window to identify the modular relay unit (47 or 49). Below identification fields (96) are a plurality of buttons (98), each of which allow the user to activate a program module. Buttons (156 and 154) can be customized by the user to activate any program module. Tabbed pages (102) allow the user to quickly view numerous functions without cluttering the computer screen. The functions depicted on each of the tabbed pages (102) are user-defined. A program utility automatically configures the virtual modular relay device (82) graphic and links the virtual intelligent electronic device (82) to its actual counterpart (47 or 49) so that input and output signals may be sent between the two.

An integrated screen that shares a monitoring device with an AC power distribution screen, a DC power supply screen, and an emergency lighting screen, including: the monitoring device includes AC monitoring, module monitoring, DC monitoring, battery monitoring, main monitoring PLC, display touch screen, communication output and fault Signal contact output; AC monitoring, module monitoring, DC monitoring and battery monitoring are respectively connected to the main monitoring PLC through RS485, the display touch screen is connected to the main monitoring PLC through RS232, and the communication output and fault signal contact output are also connected to the main monitoring PLC respectively. PLC connection; AC monitoring is connected with the AC switching circuit, and the AC feed-out circuit is connected with the AC switching circuit; the AC feed-out circuit is respectively connected with the charging module, control module and inverter module of the DC circuit through RS485; the charging module is connected with the battery; the control The module is connected to the DC feed-out, and the battery is connected to the DC feed-out through a step-down silicon chain; the inverter module is connected to the lighting feed-out, and the battery is connected to the inverter module.