2693 results about "Disconnector" patented technology

The invention discloses a GIS disconnecting switch multi-state intelligent sensing system, and relates to the field of GIS disconnecting switch state monitoring. A self-calibration multi-mode sensor is deployed for multi-source data acquisition, and novel sensors including terahertz imaging and the like are included; in data preprocessing, deep learning noise reduction is applied, fuzzy entropy is used for dynamic weighted fusion, and abnormal values are processed by an improved algorithm; feature extraction is combined with a plurality of frontier algorithms to process vibration signals, and CRNN is used to analyze acoustic signals; the QPSO evidence theory is adopted for state fusion perception, the node relation is learned by means of GNN, and the weight is adjusted according to the information gain rate; state assessment and early warning are based on transfer learning, GAN and LSTM-attention mechanisms, and early warning priorities are ranked by FAHP. According to the invention, multi-mode accurate acquisition, intelligent data processing, deep feature mining, innovative fusion perception, accurate evaluation and early warning and efficient fault diagnosis and positioning are realized, the state of the GIS isolation switch can be comprehensively and accurately perceived, the system is self-learned and optimized, the equipment safety is guaranteed, the risk of a power system is reduced, and the power operation and maintenance benefits are improved.

The invention belongs to the technical field of power distribution network equipment, and relates to an interlocking device with an emergency unlocking function and an environment-friendly ring main unit, and the interlocking device comprises an isolation interlocking assembly, a circuit breaker interlocking assembly and a chamber door interlocking assembly. The isolation interlocking assembly comprises an isolation interlocking plate, and one side of the isolation interlocking plate is provided with a shielding part; the circuit breaker interlocking assembly comprises a closing interlocking group which is arranged on the isolation interlocking plate and is used for locking and unlocking a closing release in the ring main unit; the chamber door interlocking assembly comprises a chamber door interlocking piece suitable for movably unlocking a cable chamber door on the ring main unit; the chamber door interlocking piece is provided with a rod abutting part connected with the chamber door interlocking piece through a fixing bolt. The protection functions that the circuit breaker cannot be switched on first when the disconnecting switch is switched off, the grounding switch is switched on in an electrified mode after the circuit breaker is switched on, and a cable chamber door cannot be opened when the circuit breaker is switched on are achieved through interlocking. And meanwhile, under the emergency condition of interlocking failure caused by interlocking clamping stagnation or other unforeseen circumstances, the fixing bolt can be disassembled to unlock and open the cable chamber door emergently.

The invention relates to the technical field of circuit breakers, and discloses a magnetic control type pole-mounted circuit breaker, which comprises an arc extinguish chamber, a mechanism box, a current transformer and an isolating switch, and is characterized in that the arc extinguish chamber comprises a ceramic airtight shell fixedly mounted on the upper side of the mechanism box, and a fixed contact is fixedly mounted in the ceramic airtight shell; a moving contact is slidably installed in the ceramic airtight shell, a corrugated pipe is fixedly installed in the ceramic airtight shell, the moving contact is fixedly connected with the corrugated pipe, and a sliding rod is slidably installed in the mechanism box. The magnetic control driving mechanism is arranged in the mechanism box to drive the sliding rod to horizontally move left and right, the moving contact is driven to move up and down through the transmission effect of the transmission plate, the moving contact and the fixed contact are kept in a contact or separation state, opening and closing actions of the arc extinguish chamber are achieved, the design structure is simple, a buckle structure for restraining the position of the moving contact is simplified, and the working efficiency is improved. The device has the advantages of low failure rate and sensitive opening and closing actions.

Proposed is a disconnector apparatus including a casing having therein a support ring and one side gear, and a clutch ring having a first clutch part disposed on an inner-diameter portion of the clutch ring at one side of the clutch ring facing one side gear, and a second clutch part disposed on one inner surface of the inner-diameter portion, in which the first clutch part engages with a third clutch part disposed on an outer-diameter portion of the support ring at one side of the support ring, and the second clutch part engages with a fourth clutch part disposed on one surface of the one side gear.

The invention relates to the technical field of low-voltage electric appliances, in particular to a magnetic flux release, an isolating switch and a power supply system. The electromagnetic coil is installed on the support, and the ejector rod is inserted into the electromagnetic coil in a sliding mode. In the electromagnetic coil, at least two movable iron cores which are arranged at intervals in the axial direction are arranged on the ejector rod; when the electromagnetic coil is powered on, at least one movable iron core moves in the axial direction of the ejector rod and drives the ejector rod to move. According to the embodiment of the invention, at least two movable iron cores are arranged in the magnetic flux release, so that differentiated response can be realized for different faults.

The utility model belongs to the technical field of medium-voltage power distribution systems, and discloses an isolating switch device and a switch cabinet, the isolating switch device comprises an insulating rod, a conductive block, a conductive sheet and an operating mechanism, the conductive block is sleeved on the insulating rod, the conductive sheet is fixedly connected with the conductive block, and the operating mechanism drives the conductive sheet and the conductive block to rotate through the insulating rod. Therefore, the conducting strip is selectively connected or disconnected with the circuit breaker connector bar, and the conducting block is electrically connected with the voltage transformer in the rotating process. An isolating switch device is additionally arranged between a circuit breaker and a voltage transformer in a switch cabinet, an operating mechanism is utilized to drive a conducting strip and a conducting block to rotate through an insulating rod, the conducting block and the voltage transformer keep electrical connection in the rotating process, the position of the conducting strip is changed in the rotating process, and then the conducting strip is selectively connected with or disconnected from a circuit breaker connector bar. The structure is simplified, the number of elements is reduced, flexible operation can be achieved, and the stability and reliability of the disconnecting switch device can be guaranteed.

The invention relates to the technical field of power electronic devices, in particular to a low-voltage direct-current circuit breaker, a fault protection method and a related device.The low-voltage direct-current circuit breaker comprises a through-flow branch, a transfer branch and an energy consumption branch which are connected in sequence; the through-current branch comprises an isolating switch and an MOSFET (Metal-Oxide-Semiconductor Field Effect Transistor) commutation switch which are connected in series; the transfer branch comprises a first power electronic switch group and a buffer branch which are connected in parallel; the energy consumption branch comprises a first metal oxide MOV, a second metal oxide MOV and a second power electronic switch group; the first metal oxide MOV is connected in parallel with the second power electronic switch group; and the second metal oxide MOV is respectively connected with the first metal oxide MOV and the second power electronic switch group. The technical problems that an existing hybrid direct current circuit breaker is not suitable for a low-voltage direct current system and the loss is high in the turn-off process are solved.

The invention discloses an electrified railway anti-misoperation outdoor high-voltage combined electric appliance device, which comprises an anti-misoperation spring energy storage device, an isolating switch linkage mechanism and a circuit breaker linkage mechanism, and is characterized in that the anti-misoperation spring energy storage device consists of an energy storage shaft, an energy storage spring and an energy storage transmission connecting rod; the anti-misoperation spring energy storage device is further provided with an energy storage limiting mechanism for preventing the energy storage shaft from rotating mistakenly after the energy storage spring stores energy, and an opening and closing trigger mechanism for tripping the energy storage limiting mechanism. The integrated spring energy storage transmission device has a mechanical interlocking function and can prevent misoperation, the integrated switch structure ensures firmness and mechanical reliability, connecting wires among equipment during dispersed installation are eliminated, the occupied area is reduced by more than 40% compared with traditional discrete arrangement, centralized maintenance is convenient, and the integrated switch structure is simple in structure and convenient to operate. And the overhaul and maintenance work efficiency is improved.

The embodiment of the invention provides a method and device for predicting the health state of a high-voltage isolation switch, a medium and a product, and is applied to the technical field of information. The method comprises the steps of obtaining current data generated by a high-voltage isolation switch in a preset time period, and performing data processing on the current data to obtain a measurement action current parameter; when the measured action current parameter is higher than the preset action current parameter, inputting the measured action current parameter into a pre-trained mapping relation model to obtain a predicted oxide film thickness and a predicted resistance value corresponding to the contact surface of the moving and static contacts of the high-voltage isolation switch; and based on the rated working parameters, the operation time, the predicted oxide film thickness and the predicted resistance value of the high-voltage isolation switch, calculating the residual life and the failure probability corresponding to the high-voltage isolation switch, and performing health state evaluation on the high-voltage isolation switch to obtain a health index corresponding to the high-voltage isolation switch. The technical effect of improving the maintenance efficiency of the high-voltage isolation switch is achieved.

The invention provides a vacuum circuit breaker with an isolating switch, which comprises a switch body and an anti-misoperation device, the anti-misoperation device comprises a first cam and an interlocking plate, the first cam is fixed on an isolating main shaft and rotates along with the isolating main shaft in a linkage manner, the interlocking plate is movably mounted on the switch body, and when the isolating main shaft is in a switching-off position, the interlocking plate rotates along with the isolating main shaft. The interlocking plate is driven by the first cam to be in a locking position, so that the interlocking plate is matched with the handle of the circuit breaker to be locked, the circuit breaker is prevented from being switched on, the situation that maintenance personnel can still manually drive the circuit breaker to be switched on when the disconnecting switch and the circuit breaker are both in a switching-off state in the prior art is avoided, unnecessary operation is prevented, and time and labor are saved; in addition, when the isolating switch is in a closing position, the isolating main shaft drives the first cam to rotate, the interlocking plate is separated from the circuit breaker handle under the acting force of the elastic piece, and the circuit breaker can be closed.

The present invention provides a two-in and two-out DC 1500V disconnect switch, comprising: two contact modules, arranged side by side with the operation module, and multiple modules are assembled by fasteners. The contact module includes a contact module body and a contact assembly arranged inside the contact module body; an operation module, provided with a manual operation mechanism and an electric operation mechanism for controlling the opening or closing of the contact module. In this way, modularization is achieved, the structure is simple, and the assembly is fast and convenient. Moreover, the operation module is provided with a manual operation mechanism and an electric operation mechanism for controlling the opening or closing of the contact module, that is, the opening or closing can be realized manually and electrically, which is beneficial to people's operation.

An electrical transmission safety system for connection of direct current (DC) power from a DC power source to a load comprises: a connection from the power source to the load, the connection comprising a positive terminal and a negative terminal; a first solid state switch electrically connected between the power source and one of the positive terminal and negative terminal; and a switch-control isolation block comprising a first optocoupler, the first optocoupler providing electrical isolation from the power source for generating a first isolated switch-control signal in response to a switch-control input signal, the switch-control isolation block connected to provide the first isolated switch-control signal to the first solid state switch to thereby control an ON or OFF conduction state of the first solid state switch and corresponding current flow between the power source and the load through the one of the positive terminal and negative terminal.

The invention belongs to the field of low-voltage switches, and particularly relates to a kick structure of an isolating switch and the isolating switch, and the kick structure comprises a shell assembly, a kick piece, a linkage piece, an energy-gathering elastic piece, a closing limiting piece and an opening limiting piece. Different from rotary motion of a kick piece and a linkage piece in an existing conventional kick mechanism, the kick piece and the linkage piece of the kick mechanism do linear motion, the energy-gathering elastic piece adopts a pressure spring limited between the kick piece and the linkage piece, and the energy-gathering elastic piece can only do telescopic motion in the first direction X to store / release energy; the opening limiting piece or the closing limiting piece limits the kick piece so that the kick piece can not move to the opening position or the closing position, and the linkage piece moves relative to the kick piece to drive the energy-gathering elastic piece to compress and store energy and moves until the linkage piece pushes the opening limiting piece or the closing limiting piece to unlock. The kick piece quickly acts to the opening position or the closing position under the energy release of the energy-gathered elastic piece, the action is reliable, and the overall size is small.

The invention discloses a large-current environment-friendly ring main unit which comprises an isolating switch and a circuit breaker structure, the isolating switch is located above the circuit breaker structure, the isolating switch and the circuit breaker structure are fixedly connected, the isolating switch comprises a moving knife assembly, the moving knife assembly comprises a moving knife and a moving knife holder, the moving knife is rotationally connected with the moving knife holder, the moving knife is provided with segmented contacts, and the moving knife is connected with the circuit breaker structure. The structure of the conductive copper piece is optimized, the effective lap joint number between lap joint faces and the heat dissipation area are increased, the heat dissipation efficiency is effectively improved, and the 1250A * 1.1 temperature rise test requirement is met in dry air.

The invention belongs to the technical field of electromechanical engineering and power transmission and transformation, and particularly relates to a multi-loop gas insulation power pipe gallery, a power transmission system and a control method. The multi-loop gas insulation electric power pipe gallery comprises a controller and a pipe gallery main body. The pipe gallery main body comprises a pipe gallery outer wall, two bus bars installed in the pipe gallery outer wall, a plurality of connecting buses, a standby pipeline bus and a plurality of single-phase pipeline buses. The standby pipeline bus, the two bus bars and the gas insulation pipeline bus assemblies are fixedly installed in the outer wall of the pipe gallery through fixing structures. The standby pipeline bus is connected between the two bus bars; the single-phase pipeline bus comprises a first connecting section, a first main body section and a second connecting section which are sequentially arranged along the axial direction; the two ends of each first main body section are respectively connected with the two bus bars through a connecting bus bar, the two ends of each first main body section are respectively provided with an isolating switch, and each connecting bus bar is provided with an isolating switch; and the controller is used for controlling the on-off of each isolating switch.

The invention relates to a power failure and transmission operation safety locking system and method, and the system and method achieve the precise locking management of an isolation switch device through the integration of SCADA real-time data, a dynamic locking counter mechanism and multiple safety verification. The system generates a unique job command number based on a Hash algorithm, dynamically renders a locking range in combination with a visual interface, and supports a multi-task superposition locking and priority strategy. Through triple protection of checking the state of the disconnecting switch equipment during plate hanging, checking the operation number during plate removing and forcibly removing the whole plate before power transmission, the problems of misoperation and electrified risks in traditional power failure and power transmission operation are solved, and the power supply dispatching safety is remarkably improved.

The invention discloses a temperature field simulation method, device and equipment for an outdoor high-voltage isolation switch and a storage medium, belongs to the technical field of power transmission and transformation, and solves the problems that a calculation result is disjointed from an actual operation and maintenance environment and the application range is narrow due to the adoption of an existing power equipment temperature distribution method. The invention discloses a temperature field simulation method for an outdoor high-voltage isolating switch. The method comprises the following steps: establishing a multi-physical field coupling finite element model according to a geometric structure, air material parameters and rated current of a target outdoor high-voltage isolating switch; and calculating a three-dimensional temperature field of the target outdoor high-voltage isolation switch according with an actual operation state based on the multi-physics field coupling finite element model by taking a variable field distribution value meeting a convergence condition under a pre-calculated forced wind speed as an initial condition and combining the boundary condition. According to the invention, the real position and the temperature rise amplitude of the internal hot spot of the outdoor high-voltage isolation switch can be directly quantified, the result is more accurate and reliable, and misjudgment caused by environmental interference is not easy to occur.

A device (200) for controlling a lock (102) of a vehicle flap (105) is described. The device (200) comprises an operating element (106) which can be actuated by a user in order to close a circuit and to thereby cause the lock (102) of the vehicle flap (105) to open. The device (200) further comprises a disconnector (204) which is designed to prevent closing of the circuit by the operating element (106) when a vehicle door (108) of the vehicle (100) is closed, and to allow closing of the circuit by the operating element (106) when the vehicle door (108) of the vehicle (100) is open.

The invention discloses an electric aircraft power battery management system with a fault isolation function, which comprises a series branch, the series branch comprises a plurality of battery modules connected in series, each battery module is connected in series with an isolation switch, and each battery module is connected in parallel with a bypass switch; the series branch is configured to be used for managing a battery module management unit of the battery module, and the isolating switch and the bypass switch are both controlled by the battery module management unit; the plurality of series branches are connected in parallel and converged on the high-voltage direct-current bus, and the series branches are connected with the high-voltage direct-current bus through the access switch; and the battery module management unit is connected with the main control unit through an internal data bus. The bypass switch circuit is added to the battery module in the battery pack, when the system detects that the voltage of the battery module is abnormal, the battery module can be bypassed, other battery modules can continue to work, and the safety of the battery system can be remarkably improved.

The utility model relates to the technical field of outdoor high-voltage vacuum circuit breakers, and discloses an outdoor high-voltage vacuum circuit breaker with an isolating switch, the top of a base is fixedly connected with a circuit breaker body, the middle part of the front side of the base is fixedly connected with a fixed shell, and the two sides of the fixed shell are fixedly connected with electric push rods. A clamping plate is fixedly connected to one side of the electric push rod, a connecting base is fixedly connected to the middle of the front side of the circuit breaker body, a winding roller is rotatably connected to the interior of the connecting base, an electric wire is arranged on the winding roller, and an isolating switch is fixedly connected to the bottom of the electric wire; a servo motor, a winding roller, an electric wire and the like are arranged to be matched with the disconnecting switch for use, the servo motor drives the winding roller to rotate so as to unwind the electric wire, the electric wire drives the disconnecting switch to move downwards so as to move to the position below the circuit breaker body, and therefore the danger of electric shock caused by an operator in the using process can be prevented; and a response can be conveniently and quickly made in an emergency.

The utility model discloses a confluence cabinet, which comprises a confluence cabinet body and a protection assembly, a first input copper bar group, a first output copper bar group, a second input copper bar group, a second output copper bar group and an isolating switch are arranged in the confluence cabinet body, and the first input copper bar group and the first output copper bar group are correspondingly arranged on two sides of the isolating switch along a first direction. And the switch is electrically connected with the isolating switch. And the second input copper bar group and the second output copper bar group are correspondingly arranged on two sides of the isolating switch along the first direction and are electrically connected with the isolating switch. And the first input copper bar group and the second input copper bar group are arranged at intervals along the second direction. And the isolating switch has a switch-on state and a switch-off state and is used for isolating the confluence cabinet from a power utilization system. The protection assembly comprises direct current fuses which are respectively arranged in the first input copper bar group and the second input copper bar group and are used for protecting circuits and equipment from being damaged by overcurrent, so that the safety and the reliability of the system are improved.

The utility model is suitable for the field of photovoltaic technology, and especially relates to a photovoltaic confluence cabinet and a photovoltaic system. The photovoltaic confluence cabinet comprises a cabinet body and a plurality of branch loops, the cabinet body accommodates the branch loops, and the branch loops are arranged on at least one side of the cabinet body; each branch loop comprises an isolating switch, a fuse, a busbar and a frame circuit breaker; wherein the lower port of the isolating switch is connected with an external cable through a first wiring busbar, the upper port of the isolating switch is connected with the lower port of the fuse through a first branch bar, the upper port of the fuse is connected with the busbar through a second branch bar, the lower port of the frame circuit breaker is connected with the busbar, and the upper port of the frame circuit breaker is connected with the busbar. And the upper port of the frame circuit breaker is connected with external equipment through a second wiring busbar. According to the utility model, through the arrangement of the busbar, the layout of the branch loop is more compact, and the size and volume of the photovoltaic confluence cabinet are reduced.

This application provides a power conversion apparatus and an insulation impedance detection method. The insulation impedance detection circuit is connected to the direct current bus and the ground, and the isolation switch is connected to the insulation impedance detection circuit and the alternating current voltage detection circuit. The controller is configured to control the isolation switch to be turned on, and control the insulation impedance detection circuit to detect a voltage between the direct current bus and the ground, to obtain an insulation impedance based on the voltage. The controller is further configured to control the isolation switch to be turned off before controlling the insulation impedance detection circuit to detect the voltage, to protect a person from suffering an electric shock and hand numbness due to touching the output end of the inverter circuit.

The invention discloses a modeling method and system for a vehicle network field circuit coupling model under a contact line short-circuit working condition, and relates to the technical field of modeling, and the method comprises the following steps: constructing a short-circuit arc equivalent model under the contact line short-circuit working condition based on an isolation switch equivalent model, one end of the short-circuit arc equivalent model is connected with a contact line in sliding connection with a pantograph in the chain type lumped tau-shaped network model through a switch element, the other end of the short-circuit arc equivalent model is connected with a steel rail in the chain type lumped tau-shaped network model, and a vehicle network circuit model under the contact line short-circuit working condition is obtained; and taking the short-circuit arc current at any short-circuit phase obtained through simulation of the vehicle network circuit model as a current excitation source of the three-dimensional model, and obtaining a vehicle network field model under the contact line short-circuit working condition. The rise rate, peak value and attenuation process of the short-circuit current can be accurately simulated by adding the short-circuit arc, the arc voltage drop is reflected, and the authenticity and practicability of simulation are remarkably improved.

The modular fully enclosed insulated switchgear provided in this application relates to the field of electrical switchgear. The modular fully enclosed insulated switchgear comprises: a main air chamber module, an operating mechanism module, a plug-in solid insulated busbar module, a three-position disconnector, a metal box, a transmission device and a solid insulated inner cone plug interface; wherein, the plug-in solid insulated busbar module comprises a plurality of fully solid insulated U-shaped conductors, both ends of the U-shaped conductor are provided with solid insulated outer cone plug connectors, the solid insulated outer cone plug connector at one end of the U-shaped conductor is used to connect to the solid insulated inner cone plug interface of the modular fully enclosed insulated switchgear, and the solid insulated outer cone plug connector at the other end is used to connect to the solid insulated inner cone plug interface of the adjacent modular fully enclosed insulated switchgear. It is used to solve the technical problems in the prior art that the switchgear is difficult to install and disassemble independently, is not conducive to transportation and installation in a small space, and is particularly difficult to maintain due to faults.

The invention provides a GIS partial discharge positioning method and device, electronic equipment and a storage medium, and the method comprises the steps: building electromagnetic attenuation models of a GIS according to typical structural forms corresponding to the GIS, and enabling the electromagnetic attenuation amounts of the electromagnetic attenuation models corresponding to different typical structural forms to be different; establishing an ultrahigh-frequency partial discharge signal source positioning model of the GIS according to the electromagnetic attenuation model and the number of the linear non-through basin-type insulators; according to the ultrahigh frequency partial discharge signal source positioning model and the partial discharge signal amplitude of each measuring point in the adjacent measuring point system, obtaining a map centroid similarity coefficient of the GIS; and comparing the map centroid similarity coefficient with the map similarity coefficient critical value to obtain a partial discharge signal source positioning result of the GIS, so that the partial discharge signal source can be effectively positioned based on the typical structural form of the GIS, the positioning precision is improved, and the problem that the equipment requirement of time difference method positioning is relatively high is solved.

The invention relates to a 35kV armored metal alternating-current switch equipment mechanism door closing operation interlocking mechanism which comprises a sliding plate vertically connected to the rear portion of an operation mechanism panel in a sliding mode and a mechanism door baffle fixedly connected to a mechanism door, the sliding plate is provided with a sliding plate hole matched with an operation shaft hole in the operation mechanism panel, and the lower end of the sliding plate is fixedly connected with an ejector rod. The lower end of the ejector rod is provided with a roller, the mechanism door baffle is provided with an inclined plane, and when the mechanism door is closed, the roller and the sliding plate are pushed to move upwards through the inclined plane of the mechanism door baffle, so that the sliding plate hole in the sliding plate is aligned with the operation shaft hole. And the disconnecting switch cannot be operated in an on state. The interlocking mechanism meets the'five-prevention 'technical requirement of electricity safety, has no intermediate switching factor, belongs to a pure mechanical interlocking mechanism, thoroughly solves the problem that a traditional switch cabinet mechanism door has no door closing operation, is simple and labor-saving in operation, and is safer in electricity utilization.

The invention provides an isolating switch performance monitoring system, which comprises a data acquisition module which at least comprises a current sensor and a signal conditioning circuit and is used for acquiring action current signals of a driving motor in an isolating switch in real time; the data processing module is used for performing filtering, noise reduction and time domain and frequency domain feature extraction on the received action current signal of the driving motor and establishing a corresponding waveform database according to the extracted features, and the waveform database at least comprises a normal waveform database and an abnormal waveform database; and the state evaluation module is used for comparing the real-time waveform with the reference waveform in the waveform database through a preset algorithm, identifying abnormal feature points existing in the real-time waveform and generating a corresponding performance evaluation result. Precise evaluation of the performance of the isolating switch is realized based on the current waveform of the driving motor.

The utility model provides an anti-impact connecting bolt fastening structure of a high-voltage isolating switch, and relates to the technical field of high-voltage switches, the anti-impact connecting bolt fastening structure comprises a high-voltage isolating switch base and a switch anti-impact bolt connecting assembly, through bolts penetrate through the inner sides of base bolt holes, the lower side of a bolt head rubber mat is provided with a back shore spring, and the back shore spring is connected with the switch anti-impact bolt connecting assembly. A limiting sleeve is connected to the outer side of the jacking spring in a sleeving mode, a nut rubber mat is arranged on the lower side of the limiting sleeve, a connecting nut is arranged on the lower side of the nut rubber mat, a metal locking nut is arranged on the lower side of the connecting nut, and due to the effective buffering effect of a damping rubber mat, damage of vibration to the base is remarkably reduced, and the service life of equipment is prolonged; and through rotation of the penetrating bolt, rapid mounting and dismounting can be achieved, firm and reliable connection is ensured, and through adjustment of the fastening strength of the penetrating bolt, impact loads under different working conditions can be flexibly coped with, and stable operation of equipment is ensured.

The present invention discloses a hierarchical perception method of electric carbon emission intensity that takes into account the actual operation mode of the power grid. The method builds a real-time updated electrical standard topology grid model by reading the power output, substation flow and line flow, as well as the switch logic state of the disconnector and circuit breaker. And further generate the power layer carbon emission matrix and the node layer flow crossing matrix, rely on the breadth-first path search algorithm, search for the directed line path from the starting node to the end node, and further form the grid node power diversion coefficient matrix. By reading the injected power and injected carbon emissions injected by the unit into each node in the unit carbon emission matrix, the accurate node carbon emission value of the load layer is obtained by weighting. The present invention fully considers and provides a detailed process and precise measurement method of the electric carbon emission intensity of various types of electricity at different voltage levels and different locations superimposed on the load layer, providing technical support for the accurate statistics of the electric carbon emission and carbon emission intensity of users of various types of electricity loads in the region.