33results about How to "Reduce outages" patented technology

The invention provides a chip packaging method with electromagnetic shielding function, comprising the following steps: preparing a heat sink with insulating bumps, and bonding metal pins on the insulating bumps; bonding a chip module on the heat sink with The side of the insulating bump; use the wire harness to electrically connect the pins of the chip module and the metal pins on the insulating bump; solder the shielding shell to the end of the insulating bump away from the heat sink, and plastic-encapsulate the shield shell and the heat sink to obtain Chip finished product. The invention is used to improve the production and preparation process in the chip manufacturing process, so that the chip can have the electromagnetic shielding function, thereby improving the product performance, and reducing the equipment can not work normally or malfunction caused by electromagnetic interference during the working process of the chip. Case.

The present invention provides a power communication cable threading tool, including a wire fixing device, including an inner sleeve and an outer sleeve, the outer sleeve is arranged at the end of the cable, and the inner sleeve is screwed inside the outer sleeve and, the threading module includes a buckle arranged on the side of the outer sleeve, the buckle is connected with a steel rope, and the steel rope is connected with a bender; greatly reducing the power generated by the communication cable quality problem The communication interruption event further ensures the safe and reliable operation of the power grid. The product is small in size and easy to carry. According to the characteristics of corners in the wiring process, the power communication cable threading tool is equipped with a bender to adapt to different wiring environments. Power communication The design of the cable threading tool can be used for a variety of different cables, including common optical fibers, network cables, 2M coaxial cables, etc.

The invention relates to a high-voltage and low-voltage distribution system, in particular to an intelligent electric power distribution system. The intelligent electric power distribution system at least comprises a high-voltage monitoring unit (2) which is fixed on a high-voltage cabinet (1), a direct current screen monitoring unit (4) which is fixed on a direct current screen (3), a low-voltage cabinet equipment monitoring unit (6) which is fixed on a low-voltage cabinet (5), and a transformer monitoring unit (8) which is fixed on a transformer (7), wherein the high-voltage monitoring unit (2), the direct current screen monitoring unit (4), the low-voltage cabinet equipment monitoring unit (6) and the transformer monitoring unit (8) are respectively and electrically connected with a main control unit (10) through a network (9). The high-voltage and low-voltage distribution system has the advantages of convenience for operation and lower price, so that the intellectualization rate of a high-voltage and low-voltage switch cabinet is comprehensively improved.

The invention discloses a method for automatically generating a distribution network ring network ledger based on a power distribution GIS model, which includes obtaining distribution network line ring network ledger information through a power distribution GIS model database, and generating a distribution network ring network ledger; The electrical GIS model obtains the criterion of the ring network account of the distribution network, and judges the ring network account of the generated distribution network line; formulates automatic update rules for the current account data of the ring network account; according to the formulated The rules of automatic update update the data of the current ring network ledger in real time. The technical scheme of the invention eliminates the need for the personnel of the power supply station to manually maintain the data of the ring network ledger through the process, greatly reduces the workload of the personnel of the power supply station at the grassroots level, and improves the efficiency of the staff of the power grid enterprise.

The invention discloses a power transformer pump type oil plug detection method. The transformer oil plug can be detected, and transformer heat sink strips in oil plug can be accurately located; an oil pump with oil mass detection function is arranged at a middle location of each heat sink strip of the transformer, and a communication module is used for numbering each oil pump; the transformer oilis charged in each oil pump after the transformers runs at the first time, and the oil charging process is finished until the oil pump in each heat sink strip is charged with rated oil charging mass;a central controller records and computes the oil charging amount data of the unit time; various oil pumps discharge oil at the same time, the discharge time is timed, and the next charge oil charging and timing is started after the oil in each oil pump is completely discharged; an oil mass-time state curve of all oil pumps can be generated after the superposition; and the central controller sends out oil pressure abnormity and oil plug formation information and gives an alarm.

The invention discloses a pluggable lightning arrester, which comprises an upper plug and a lower plug which are arranged at the two ends of the lightning arrester, wherein the upper plug and the lower plug of the two ends are inserted and fixed in an upper-end and a lower-end sockets on a mounting frame when the arrester is installed, the mounting frame comprises two bending sections, the lower-end socket is installed at the end part of the lower section of the mounting frame, an insulator is installed at the upper section of the mounting frame, and the upper-end socket is installed at the end part of the insulator; and the mounting frame, the insulator and the lightning arrester form a closed quadrilateral structure. The arrester is convenient to install and dismantle, the arrester preventive test is carried out every year without cutting the power of users, no pole climbing with high level is needed, so the labor intensity and unsafe factors of workers are reduced, and the working safety is improved.

The invention discloses a method for predicating the maximum load of feeder lines of a distribution transformer, relates to the technical field of electric power, and aims to solve the technical problem that the future maximum load value of the distribution transformer cannot be accurately predicted. The method includes the steps as follows: firstly, historical load values of each feeder line in the year before a predicting day are acquired; then, an average load value of each feeder line at each sampling time of a sampling day is calculated on the basis of the historical load values; the maximum demand of daily declaration electricity is predicted on the basis of the calculated average load value and the historical maximum demand of daily declaration electricity, and the maximum prediction load value of the distribution transformer at each predicting time in the predicting day is calculated; the maximum value is chosen from the maximum prediction load values at each predicting time in the predicting day and taken as the maximum prediction load value of the distribution transformer in the predicting day; and the predicting time corresponding to the maximum prediction load value of the distribution transformer in the predicting day is taken as a time interval with the maximum load value of the distribution transformer in the predicting day. With the adoption of the method provided by the invention, investment waste of the volume of the feeder lines of the distribution transformer can be effectively avoided.

The invention discloses an active power scheduling method for a power distribution network-level optical storage cluster. The optical storage cluster includes two or more of a group consisting of a photovoltaic power station, an energy storage device, a household optical storage device and a household uncontrollable photovoltaic device. The method includes the step of scheduling active power of each device in the optical storage cluster through an active power scheduling value delivered by a power distribution network. Moreover, the invention also discloses a power distribution network monitoring and control device adopting the method. According to the active power scheduling method for the power distribution network-level optical storage cluster, direct scheduling control is performed ondistributed devices such as photovoltaic and energy storage devices, the barrier of integrated dispatching of a photovoltaic power plant and an energy storage device in a traditional dispatching modeis broke through, and the load forecasting link is processed by a power grid scheduling center, so that the scheduling operation of the active power is more accurate and more reliable.

The invention discloses a real-type test system and application method of distribution cables based on multi-dimensional digital fault inversion. The system includes: a distribution cable channel simulation system for simulating the real distribution cable laying mode, operating environment and faults conditions, to reproduce the working conditions of distribution cables under actual operating conditions; the distribution cable test control system is used to carry out true-type tests of various distribution cables according to the simulated environment of the distribution cable channel simulation system, under different experimental conditions Carry out the verification of distribution cable fault detection and diagnosis technology. The present invention proposes a real-type test system for distribution cables based on multi-dimensional digital fault inversion; by simulating and reproducing the cable running state under abnormal working conditions in the real-type cable test system, the power distribution system under various complex conditions is developed. Cable fault conditions and operational performance tests can comprehensively evaluate the effectiveness and accuracy of distribution cable fault detection methods.

The invention relates to the technical field of switch cabinets, in particular to an overheating protection device for a switch cabinet. The conventional switch cabinet has the disadvantages that theoverheat protection is insufficient when the cabinet is used, and that the temperature change state of the internal components cannot be effectively analyzed during the using. The invention provides the following technical scheme: the device comprises a switch cabinet body; an electrical appliance mounting plate arranged in the vertical direction is mounted inside the switch cabinet body; one sideof the electrical appliance mounting plate is provided with U-shaped supports, which are arranged equidistantly in the vertical direction; and division plates are vertically mounted between the adjacent supports. According to the overheating protection device for the switch cabinet, the device is simple in structure, convenient and fast to operate. On the one hand, the device can effectively monitor the temperature change of the electrical appliances in the switch cabinet during the operation, thereby providing a data basis for the performance analysis of the switch cabinet, and providing a theoretical basis for the subsequent upgrade and the improvement of the switch cabinet. On the other hand, the device can effectively and quickly reduce the temperature of the electrical appliances inside the switch cabinet and the occurrences of the power failure of the switch cabinet, thereby reducing the loss caused by the power failure.

The application provides a manipulator device for workpiece transfer and a method of use, belonging to the field of manipulators, including a driving mechanism and an emergency stop switch arranged on one side of the driving mechanism, the driving mechanism is provided with a connecting mechanism, and one side of the connecting mechanism is provided with a The protective box is provided with a plurality of suction cup mechanisms, and the inside of the protective box is provided with an adjustment trigger mechanism. In the present application, the third spring in the suction cup mechanism is provided, and the third spring can support the support tube and the rubber suction cup through the retaining ring, so that the rubber suction cups in the multiple suction cup mechanisms are on the same plane. When the workpiece is in contact, the protective box continues to move down under the drive of the drive mechanism. At this time, the heights of the bottom ends of the multiple suction cup mechanisms will change with the actual situation on the top of the workpiece, so that some of the suction cup mechanisms can be in contact with the recesses of the workpiece. The number of contacts between the suction cup mechanism and the workpiece is increased, thereby improving the adsorption strength of the workpiece.