54results about How to "Improve the quality of power supply service" patented technology

The invention discloses an abnormal data analysis and fault positioning system of first-aid repair of a power distribution network and a method. The system comprises a power distribution network first-aid repair command platform which is connected with an intelligent public transformation monitoring system, an intelligent comprehensive leakage protector power distribution automation system, a 95598 system, an onsite line patrol monitoring device and an electricity utilization information acquisition system. The power distribution network first-aid repair command platform is used for distributing unique ID numbers to the power distribution automation system, the 95598 system, the onsite line patrol monitoring device and the electricity utilization information acquisition system respectively. Attributes of fault positioning schemes are gathered according to the fault positioning schemes, and each ID number is bonded a matched fault positioning scheme in the corresponding fault positioning scheme. Information transmitted by the power distribution automation system, the 95598 system, the onsite line patrol monitoring device and the electricity utilization information acquisition system are received and associated with corresponding ID numbers for classified storage. Fault positioning is performed on the information with the same ID numbers and positioning results are output.

The invention discloses a method for monitoring a voltage qualification rate by use of an electric energy metering device. The invention provides a method for monitoring a voltage qualification rate by use of an electric energy metering device in terms of voltage qualification rate monitoring equipment, voltage qualification rate monitoring locations, voltage qualification rate statistical methods, main station construction and the like. The electric energy metering device arranged on a power grid is used as a voltage qualification rate monitoring terminal, and the electric energy metering device is provided with continuous monitoring and a statistical function on voltage deviations caused by slow variations in a normal operation state of a power system. The method for monitoring voltage qualification rate by use of the electric energy metering device has the advantages of low revamping and implementation costs, improved accuracy and objectivity of statistical data on the voltage qualification rate and the like.

The invention discloses a state detection and protection method for a circuit breaker opening and closing coil. The invention provides a state detection and protection system for a circuit breaker opening and closing coil, deduces a coil equivalent heating formula through theoretical calculation and coil opening and closing material analysis, and achieves the purpose of protecting the coil by cutting off the electrified loop before the coil reaches a heat melting point through the calculation of heat productivity. IGBT power electronic components are easy to damage after long-term operation, the service life of an IGBT is prolonged by combining with a relay, and the purpose of performing reliable operation and cutting off a loop reliably can be achieved; a theoretical basis is provided for the circuit breaker maintenance; the safe reliability of the circuit breaker opening and closing coil is improved; the safe operation capability of a transformer substation can be effectively improved, the field maintenance workload can be effectively reduced, and the economic benefit is remarkable; and the state detection and protection method guarantees the safe and economical operation of the transformer substation system, and improves the power supply reliability of the transformer substation.

The invention discloses a power load adjusting system based on user real-time feedback. By achieving bidirectional communication between a load adjusting main station (namely power grid load management center) and a user energy efficiency management unit, adjustable load in a power grid area is comprehensively grasped. Therefore, effects are achieved of effectively redeploying adjustable load resources of whole society power users in order to achieve harmonious electricity consumption, decreasing a large ratio of user electricity limitation, and improving power supplying service quality. The power load adjusting system has tremendous potential in aspects of improving user satisfaction, decreasing power grid load management work amount, and enhancing power supply reliability and flexibility, and has large socioeconomic performance. As for users, the user energy efficiency management unit achieves real-time acquisition of operating states of devices, performs flexible configuration management and automatic/manual control state switching on the adjustable load, and has a flexible responsive switching-on and switching-off capability.

The present invention relates to a method and device for pushing fault power outage information. The method includes the steps of: obtaining the address information of a client; receiving a fault worksheet of fault power outage input by a user and sent by the user; sending the fault work sheet to a power marketing system matching the address information according to the address information in order to trigger the power marketing system to generate a fault power outage identifier; receiving the fault power outage identifier fed back by the power marketing system; calling a fault information template that matches the fault power outage identifier, and converting the fault work sheet into fault power outage information by using the fault information template and pushing the fault power outage information to the client. The method obtains the address information of the client and the fault work sheet input by the user, sends the fault work sheet to the matching power marketing system according to the address information to obtain the fault power outage identifier, calls the corresponding fault information template to convert the fault work sheet into fault power outage information, and pushes the fault power outage information to the client, thereby improving the push efficiency of the fault power outage information and improving the power supply service quality of a power grid system.

The invention discloses a power wireless sensor network design method based on edge calculation. According to the invention, an intelligent distribution transformer terminal, a branch data monitoringterminal and a branch data monitoring unit are utilized to establish a power wireless sensor network in a low-voltage transformer area, electrical quantities such as current, voltage, power and electric quantity of a power distribution room and a meter box are acquired, and communication topology, segmented line loss and segmented impedance of the low-voltage power distribution network are obtained through an edge calculation algorithm. According to the invention, problems such as line loss abnormity can be positioned to the transformer area and subdivided to each branch outgoing line or meterbox, so that the problems of low voltage and line loss of the transformer area can be effectively solved and managed; software and hardware foundations and data support are laid for lean management and low-voltage governance work development of the low-voltage distribution area, manpower and material resources are saved, the power supply reliability is improved, user complaints are reduced, powersupply service quality is improved, and finally the purpose of orderly power utilization of the area is achieved.

The invention discloses a high-voltage electric energy metering device with convenient disassembly and assembly, comprising a high-voltage electric energy meter and an insulating support. The high-voltage electric energy meter comprises at least two wire phase components; each wire phase component is provided with a conductive bar which is used for rapidly installing the high-voltage electric energy meter on the insulating support and is serially connected to a power transmission line; at least one of the wire phase components is internally provided with a current sensor used for inducing current and the change thereof in the conductive bar; the upper end of the insulating support is provided with a locking mechanism used for locking the conductive bar, and the lower end of the insulatingsupport is provided with an open hook used for supporting the conductive bar; the locking mechanism and the open hook are both communicated with the power transmission line; and the upper end of the conductive bar is locked by the locking mechanism, and the lower end of the conductive bar is movably hinged to the open hook. The invention aims to provide the high-voltage electric energy metering device which is small in design size, light in weight, simple in structure, convenient to install and capable of being rapidly disassembled and assembled.

The invention discloses a power cable insulation monitoring system which is composed of a shell, an electric leakage electric-verification contact, a voltage-tolerance electric-verification contact, a controller and an alarm. An elastic connecting strip is arranged at the outer surface of the shell, at least two electric leakage detection binding posts and at least two voltage-tolerance electric-verification binding posts are arranged on the upper surface of the shell, at least one alarm is also arranged, a displayer, an adjustable boosting transformer, a storage battery set, an A/D converter, a microprocessor, and a wireless data transmitter form the controller and are all arranged in the shell, wherein an adjusting block of the adjustable boosting transformer is embedded in the upper surface of the shell. The power cable insulation monitoring system is simple in structure and convenient to operate, can randomly detect the insulation grade change situation when the cable is in working state during the whole process, gives an alarm in time, and overcomes the defects that operation staff must be closed to the detection equipment to operate the detection equipment, and therefore the potential safety hazard of electric shock during the detection process is eradicated.

The invention discloses an NB-IoT-based intelligent electric meter power failure fault processing device and method. The method comprises the steps of receiving a power failure report request sent bya power failure intelligent electric meter; inquiring and obtaining the current power failure information and the current position information of each power failure intelligent electric meter one by one; judging a non-fault area range and a fault area range of the power distribution and utilization system on the basis of the corresponding topological structure of the power distribution and utilization system and the current power failure information and the current position information of the intelligent electric meter in each power failure; and carrying out the corresponding fault processingactions according to the non-fault region range and the fault region range. According to the invention, the power failure conditions of users can be reported rapidly, at the same time, the reported power failure range and the current information before power failure can be analyzed, the power failure range and the non-fault area range are rapidly positioned, the maintenance personnel are guided torapidly recover power supply of users in the non-fault area, meanwhile, a current power failure fault point checking plan is accurately given, the maintenance personnel are guided to timely process in place according to equipment positioning information, the power failure rush repair efficiency is improved, the power failure event response time is shortened, and the power supply service quality is improved.

A gas discharge lamp power supply having a base, a pair of opposed side walls extending from the base, and opposed first and second end walls extending from the base between the opposed side walls. The first end wall has a sloped wall extending angularly between the side walls, and two input terminals are mounted on the sloped wall. In another embodiment, the power supply has a control with a nonvolatile memory for storing an error code in response to a detected fault condition, thereby permitting the error code to be displayed upon power being removed from and then, subsequently reapplied.

The invention discloses a distribution transformer district trip prediction method, comprising the following steps: obtaining historical data, and establishing a trip prediction model of distributiontransformer trip according to the historical data; wherein the historical data comprises operation data of the historical distribution transformer district and environment data corresponding to the operation data; acquiring target data, and inputting the target data into the tripping prediction model to obtain a prediction result of the target distribution transformer district; wherein the targetdata comprises the operation data of the target distribution transformer district and the environment data corresponding to the operation data. According to the method, the trip prediction model is used to predict target data, so as to obtain a prediction result that whether trip would occur. According to the prediction result, a power grid system can timely discover potential safety hazards of the distribution transformer district to prevent accidents and adjust load distribution in advance, so that the occurrence of tripping is avoided, or the processing speed of the power grid after tripping is improved. The method has important significance for improving the quality of power supply service. Correspondingly, the invention also discloses a distribution transformer district trip prediction system and device with the same beneficial effects.

The invention provides a distribution network fault first-aid repair prediction analysis system, and belongs to the technical field of distribution network fault first-aid repair. The prediction analysis system comprises a data extraction unit, a data processing unit, an image generation unit, an emotion recognition module and a prediction model establishment unit. The prediction model establishment unit is used for establishing a prediction model according to fault addresses, first-aid repair durations and user names in historical work orders sorted and classified by the data processing unitand user emotions recognized by the emotion recognition module, and predicting the first-aid repair durations satisfying users. In addition, the invention further discloses a distribution network fault first-aid repair prediction analysis method. The invention has the advantages that by adopting the structure, the power supply service quality can be improved, and the system and method are used forpredicting the rush-repair duration of distribution network fault rush-repair.

The invention discloses a power failure data sharing method based on cloud platform computing and a message bus technology, and relates to a power failure data sharing method. At present, a big data real-time processing platform goes deep into various fields, but research, judgment and calculation of power failure data need deep analysis and high-frequency calculation of multi-dimensional data such as power failure events, historical data, station-household relations and real-time loads, and accuracy and timeliness of the power failure data of the intelligent electric energy meter are affected. The method is based on the cloud platform technology of distributed big data real-time processing, confirms the power failure information and accurately positions the power failure information in combination with the topological relation between the power failure event and the user, and provides reliable and accurate power failure data for a low-voltage distribution network power failure fault rapid repair service platform.

The invention discloses a bicycle for aloft work. The bicycle comprises a main beam. The front side and the rear side of the main beam are correspondingly connected with a front supporting arm and a rear supporting arm. A foot stepping wheel disc is arranged at the joint of the main beam and the front supporting arm. A front hook is arranged at the upper end of the front supporting arm. A front idler wheel which is in chain transmission with the foot stepping wheel disc is arranged in the front hook. A safety handle is arranged in the middle of the front supporting arm. A rear hook is arranged at the upper end of the rear supporting arm. A driven rear idler wheel is arranged in the rear hook. The hook opening of the front hook is provided with a safety lock. The hook opening of the rear hook is provided with a safety lock. A hook body of the front hook is connected with an auxiliary brake device which comprises a connecting plate connected with the hook body, wherein a brake block is hinged to the connecting plate, the two sides of the brake block on the connecting plate are correspondingly provided with a first limiting block and a second limiting block, and a compression spring which keeps the brake block in the first position or the second position is connected between the middle of the brake block and the connecting plate. The bicycle has the advantages of being reasonable in structure, stable in riding and high in safety coefficient.

The invention discloses an electric power GIS three-dimensional system model and an application method thereof. The electric power GIS three-dimensional system model comprises a local power grid three-dimensional GIS platform. The local power grid three-dimensional GIS platform is connected with a video monitoring subsystem, a door control subsystem, a GIS video recognition subsystem and a three-dimensional GIS subsystem through signals. The door control subsystem, the video monitoring subsystem and the GIS video recognition subsystem are integrated into a three-dimensional GIS map model. The convenient, visual and rapid comprehensive management platform is provided for power grid decision-making and command dispatching and manager management, system resources are effectively integrated, information sharing is achieved, the digital power grid management level and operating efficiency are improved, the power supply service quality is improved, and the electric power GIS three-dimensional system model is worthy of application and popularization.

The invention discloses an RS485 electric meter power failure alarm reporting method based on a timing broadcast strategy, and relates to a power failure alarm reporting method. At present, an RS485 mode is a simplex and duplex mode, so that an intelligent meter cannot initiate event reporting actively, and a large number of meter power failure event are missed and reported belatedly. The method comprises the following steps: 1) carrying out timing polling, wherein the II-type concentrator broadcasts and sends a 'power failure state inquiry' message at regular time; the II-type concentrator isoperated in a meter reading gap period, and starts to initiate timing rotation training when the meter reading is finished on that day or when more than one time period is exceeded; 2) carrying out bus monitoring; 3) reporting a single-meter power failure event; and 4) reporting an RS485 conflict processing event. According to the technical scheme, a specific timing broadcast strategy of the II-type concentrator is adopted, the super capacitor is used, the gap period and the calling characteristic after meter reading of the II-type concentrator are effectively utilized to the maximum extent,the problem of active reporting of the RS485 intelligent meter is solved, and the accuracy and the real-time performance of a power failure event of the RS485 intelligent meter are greatly improved.

The invention relates to a GIS (Geographic Information System)-based power supply scheme rationality evaluation method, which comprises the following steps of: (1) quantizing access information of power grid resources, and associating the access information to power facilities in a GIS map; (2) positioning the position of a client power receiving point, and searching accessible power supply pointsaround the power receiving point; (3) analyzing an optimal access path according to the client position and the accessible power supply point; (4) completing power supply scheme compilation in combination with the accessible power supply point and the power supply path information; (5) evaluating the construction cost of the power supply path of the power supply scheme; and (6) evaluating the power supply reliability of the power supply points of the power supply scheme. Based on the GIS map technology, power supply point searching based on the periphery of a client power receiving point is achieved, a power supply path analysis result is provided according to the selected power supply point, a client is assisted in completing power supply scheme making, definite directivity suggestions are provided for overall evaluation of a power supply scheme, and the power supply service quality is further improved.

The invention discloses a power-on dust removal device and a remote-control unit used in cooperation. The power-on dust removal device is characterized by comprising a trolley, a cloud deck and an injecting device. The cloud deck is arranged above the trolley. A control center is arranged in the cloud deck. The injecting device is arranged above the cloud deck. According to the technical scheme, the remote-control unit controls the dust removal device to clear and scrub dirt on an outdoor insulator, lifting of the dust removal device can be achieved, up and down moving and left and right moving of a nozzle can be achieved, an outlet of the nozzle is aligned to the insulator needing to be washed, detergent is sprayed to the surface of the insulator in a full covering manner to carry out clearing and scrubbing, clearing and scrubbing are carried out on the condition without cutting off electricity, the service life of the insulator is prolonged, electrical performance of the insulator isimproved, the great influence caused by power off is avoided, and the power supply service quality of power supply companies is improved.

The invention provides a method for replacing a telegraph pole in an electrified state. The method comprises the following specific steps that 1, an insulation shielding blanket is used for wrapping a power transmission line in an insulation mode; 2, the power transmission line is removed from a cross arm at the top end of the telegraph pole; 3, an inclined pit extending in the direction of the power transmission line is dug in the root of the telegraph pole; 4, the telegraph pole is put down along the inclined pit; 5, the telegraph pole is pulled out of the inclined pit, and a new telegraph pole is put into the inclined pit; 6, the new telegraph pole is vertically erected; 7, the inclined pit is backfilled, the ground around the new telegraph pole is tamped, and the power transmission line is fixed to a cross arm of the new telegraph pole; and 9, the insulation shielding blanket is taken down. According to the method, the telegraph pole can be replaced in the electrified state, the living and production electricity utilization requirements of users are met, in the telegraph pole replacing process, the telegraph pole is put down or erected in the extending direction of the power transmission line, the telegraph pole and the power transmission line are not scraped or collided, the power transmission line is prevented from being damaged, unnecessary workloads are reduced, and the power supply service quality is improved.