CN205565728U - Intelligent power distribution platform district - Google Patents

Abstract

The utility model provides an intelligent distribution station area. The distribution station area includes: a main transformer module, a high-voltage switch module and a secondary distribution box module; the main transformer module, the high-voltage switch module and the The secondary distribution box module is set between the transmission line and the power distribution area; wherein the high-voltage switch module is connected to the transmission line, and is used to disconnect the power distribution area from the power distribution area when a fault occurs in the power distribution area. The connection of the transmission line; the main transformer module is connected with the high-voltage switch module for adjusting the output voltage of the transmission line; the secondary distribution box module is connected with the main transformer module for monitoring the The real-time status of the power distribution area, and adjust the load of the multi-phase circuit in the power distribution area according to the real-time status.

Description

An intelligent distribution station area

technical field

The utility model relates to power distribution equipment in the field of power distribution, in particular to an integrated distribution type fully insulated intelligent distribution station area.

Background technique

In the transformation process of urban and rural distribution networks, the large-scale construction and renovation of distribution stations has significantly improved the power supply capacity and quality of distribution stations; with the vigorous construction of smart distribution stations, the intelligent distribution stations The level of modernization has been further improved, meeting the new requirements of customers for power supply capacity, power supply quality and power supply services; with the development of distribution network standardization, in order to effectively improve the interchangeability and versatility of equipment in distribution stations, the The construction of distribution network and distribution sub-area puts forward new requirements, and the application of new technology and new technology will effectively promote the new development of distribution sub-area.

The construction of the distribution station area is a comprehensive and complex project. At present, there are the following problems in the construction and operation of the distribution station area: there are many on-site construction procedures and a long construction period; there are many on-site installation equipment and many equipment connections, resulting in a large on-site workload ;The construction process is easy to cause waste of materials; different installation technical specifications in various places lead to differences in station area construction and functional configuration, disorderly installation of old station area equipment, messy wiring, and poor visual perception; low power supply reliability, rust and aging of equipment after being exposed to the air It is difficult to solve problems such as being easily damaged by external forces, many high and low voltage exposed live parts, high failure rates of dropout fuses and isolating switches, lack of monitoring or even no monitoring in distribution station areas; uneconomical operation and maintenance, long and difficult operation and maintenance Large, inconvenient equipment replacement; large footprint, high construction costs. In particular, the high-voltage switches used in distribution stations are generally separated, with large volume, large floor space, and unreliable electrical insulation performance, which hinders the improvement of power supply reliability.

Therefore, a new technology and new technology are used to develop an integrated distribution type fully insulated high-voltage combined electrical switch for distribution stations. By greatly improving the electrical insulation performance of the switch and the reliability of power supply, the switch volume is reduced, standardized design, Factory processing and modular production simplify the installation process, save floor space, realize the interchangeability, versatility and scalability of the distribution station area, improve the operation and maintenance level of the distribution station area, and enhance the intelligence of the distribution station area Level, improve the three-phase balance rate of the distribution station area, so as to effectively ensure the power supply reliability and voltage qualification rate of the distribution network. The application of standardized, distributed, and intelligent distribution stations equipped with high-voltage combined electrical switches can reduce construction and installation costs, reduce the overall line loss rate, improve the power supply capacity of distribution stations, and realize the reuse of standard modules.

Utility model content

The purpose of the utility model is to overcome the existing problems and deficiencies of the matching high-voltage switch used in the construction of the existing distribution station area, and provide an integrated distribution type fully insulated intelligent distribution station area. By adopting new technologies and processes such as reliability demonstration, standardized design, factory processing, and assembly construction, the construction efficiency and construction specifications of the distribution station area are effectively improved, thereby ensuring the reliability of the power supply of the distribution network and the voltage qualification rate.

In order to achieve the above purpose, the utility model specifically provides an intelligent distribution station area, which includes: a main transformer module, a high-voltage switch module and a secondary distribution box module; the main transformer module, the high-voltage The switch module and the secondary distribution box module are arranged between the transmission line and the power distribution area; wherein the high-voltage switch module is connected to the transmission line, and is used to disconnect the power distribution area when a fault occurs in the power distribution area. The connection between the power zone and the transmission line; the main transformer module is connected to the high-voltage switch module for adjusting the output voltage of the transmission line; the secondary distribution box module is connected to the main transformer module, It is used for monitoring the real-time state of the power distribution area, and adjusting the load of the multi-phase circuit in the power distribution area according to the real-time state.

In the above-mentioned intelligent distribution station area, preferably, the main transformer module includes a power transformer, a conductive connector and a protective net; the power transformer is connected to the high-voltage switch module and the secondary power distribution module through a conductive connector The box modules are connected; the protective net is used to protect the power transformer and the conductive connector.

In the above-mentioned intelligent distribution station area, preferably, the high-voltage switch module includes: a load switch-fuse combination, a high-voltage arrester, a frame and a shell; the load switch-fuse combination and the high-voltage surge arrester pass through the frame fixed inside the housing; wherein, the load switch-fuse combination is used to protect the transmission line by triggering the load switch through the fuse; the high-voltage arrester is used to protect the intelligent distribution station area from lightning damage .

In the above-mentioned intelligent distribution station area, preferably, the load switch-fuse combination includes a load switch, a fuse, a grounding switch and an operating mechanism; the load switch is used to close or break the power distribution area and the transmission line; the operating mechanism is used to control the closing or breaking of the load switch; the fuse is used to control the load through the operating mechanism when the power distribution area fails The switch disconnects the connection between the power distribution area and the transmission line; the grounding switch is associated with the load switch, when the load switch is closed, the grounding switch is locked, and when the grounding switch is closed , the load switch is locked, and is used for disconnecting the connection between the power distribution area and the transmission line when the distribution area is overhauled.

In the above-mentioned intelligent distribution station area, preferably, the load switch-fuse combination electric appliance further includes a solid-sealed pole, and the solid-sealed pole is used to seal the vacuum interrupter, the fuse base and the contacts, The static contact of the earthing switch and the conductive elements between the three.

In the above intelligent distribution station area, preferably, the secondary distribution box module includes: an incoming and outgoing line unit, a meter unit, an intelligent integrated control unit, a reactive power compensation unit, and a housing; Collecting and displaying the power data of the real-time state of the power distribution area; the intelligent integrated control unit is used to monitor the power data of the real-time state of the secondary distribution box module and output control instructions according to the power data; The occurrence unit is used to adjust the electric energy input according to the control instruction or the overload protection value according to the electric energy data; the reactive power compensation unit is used to perform reactive power compensation on the power distribution area circuit according to the control instruction.

In the above-mentioned intelligent distribution station area, preferably, the incoming and outgoing line unit includes an incoming line switch and an outgoing line switch; the incoming line switch is provided with a circuit breaker, and the circuit breaker is used for controlling output according to the intelligent integrated control unit The instruction controls the closing or breaking of the incoming line switch; the outgoing line switch is provided with a residual current operating protector, and the residual current operating protector is used to adjust the overload protection value according to the electric energy data.

In the above-mentioned intelligent distribution station area, preferably, the intelligent integrated control unit includes a monitoring unit and a management unit; wherein the monitoring unit is composed of one or more of the following monitors: user electricity information monitor, distribution transformer The meter monitor, the residual current action protector monitor, the state monitor, the communication unit and the environment detector are used to monitor the power data of the real-time state of the secondary distribution box module; the management unit includes power quality management A device for outputting control instructions according to the monitoring data acquired by the monitoring unit.

In the above-mentioned smart distribution area, preferably, the reactive power compensation unit includes: a capacitor compensator, configured to perform reactive power compensation on the power distribution area circuit according to the control instruction.

In the above-mentioned intelligent distribution station area, preferably, the reactive power compensation unit further includes a filter.

The beneficial technical effects of the utility model are:

1. Reduce the volume of the high-voltage switch used in the integrated distribution type fully insulated distribution station area, reduce the occupied area, and reduce the user's land cost;

2. Integrating the high-voltage switch and the integrated distribution type fully insulated distribution station into one, the standardized and universal design improves the interchangeability of the switch, facilitates the design, production, and after-sales of the manufacturer, and improves the standardization and universal design. switch interchangeability;

3. Integrated installation, easy to transport and easy to maintain;

4. The application of epoxy solid-sealed circuit breakers in the integrated distribution type fully insulated distribution station area greatly improves the electrical insulation performance of the distribution station area, thereby greatly improving the reliability of power supply. Provides a solid foundation.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the utility model, constitute a part of the application, and do not constitute a limitation to the utility model. In the attached picture:

Fig. 1 is the structural representation of the intelligent distribution station area provided by the utility model;

Fig. 2 is a schematic diagram of the principle of the intelligent distribution station area provided by the utility model.

detailed description

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention more clear, the present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the exemplary embodiment of the utility model and its description are used to explain the utility model, but not as a limitation to the utility model.

Please refer to Figure 1 to Figure 2, the utility model specifically provides an intelligent distribution station area, the distribution station area includes: a main transformer module 1, a high-voltage switch module 2 and a secondary distribution box module 3; The main transformer module 1, the high-voltage switch module 2 and the secondary distribution box module 3 are arranged between the power transmission line and the power distribution area; wherein the high-voltage switch module 2 is connected to the power transmission line for when When a fault occurs in the power distribution area, disconnect the connection between the power distribution area and the transmission line; the main transformer module 1 is connected to the high-voltage switch module 2 to adjust the output voltage of the transmission line; The secondary distribution box module 3 is connected with the main transformer module 1, and is used for monitoring the real-time status of the power distribution area, and adjusting the load of the multi-phase circuit in the power distribution area according to the real-time status.

In the above embodiment, a base 4 and a top cover 5 may also be included, the base 4 is used to place the above-mentioned main transformer module 1, high voltage switch module 2 and secondary distribution box module 3, and the top cover 5 covers Outside the smart distribution station area, it is used to protect the smart distribution station area.

In the above-mentioned embodiments, the intelligent distribution station area consists of a distribution transformer, namely the main transformer module (there is no exposed charged, fully insulated, and fully sealed structure on the high-voltage side), a switchgear that is the high-voltage switch module, and a standard comprehensive intelligent distribution box that is two Sub-distribution box modules. The main transformer module is composed of transformers, conductive connectors, protective nets, etc.; the high-voltage switch module is composed of load switch-fuse combination appliances, lightning arresters, frame structures, etc.; the standard comprehensive intelligent distribution box is composed of 400V incoming and outgoing line switches, reactive power compensation devices , Metering device, commutation switch, intelligent station area terminal, etc.; the intelligent station area terminal monitors the current and voltage of the low-voltage side in real time, and adjusts the power factor of the station area by co-compensating or sub-complementing the capacitor bank according to the set value ; According to the control of the commutation switch, the balance of the low-voltage three-phase load is realized by directly changing the load size; through the real-time status of the distributed power supply, the access of the distributed power supply is controlled.

In a preferred embodiment of the present invention, the main transformer module 1 includes a power transformer, a conductive connector and a protective net; The box modules are connected; the protective net is used to protect the power transformer and the conductive connector.

In actual work, the main transformer module 1 can be composed of a transformer, conductive connectors, lighting and safety fences, etc.; the main function of the transformer is to replace the 10kV voltage with a 400v voltage. Oil-immersed transformer with a capacity of 200kVA. Due to the small capacity of the transformer, natural ventilation is preferred. The core of the transformer is made of high-quality magnetic density oriented cold-rolled silicon steel sheet. The channel-type clamp structure, the transformer shell and its safety net and other falling accessories are all anti-corrosion treated;

In a preferred embodiment of the present invention, the high-voltage switch module 2 includes: a load switch-fuse combination, a high-voltage arrester, a frame and a shell; the load switch-fuse combination and the high-voltage arrester pass through the frame fixed inside the housing; wherein, the load switch-fuse combination is used to protect the transmission line by triggering the load switch through the fuse; the high-voltage arrester is used to protect the intelligent distribution station area from lightning damage .

In the above embodiment, the load switch-fuse combination includes a load switch, a fuse, a grounding switch and an operating mechanism; the load switch is used to close or break the power distribution area and the transmission line connection; the operating mechanism is used to control the closing or opening of the load switch; the fuse is used to control the load switch to disconnect the power distribution area through the operating mechanism The connection between the power zone and the transmission line; the grounding switch is associated with the load switch, when the load switch is closed, the grounding switch is locked, and when the grounding switch is closed, the load switch Locking is used for disconnecting the connection between the power distribution area and the transmission line when the distribution area is overhauled. The load switch-fuse combined electrical apparatus also includes a solid-sealed pole type, and the load switch, the fuse, the grounding switch and the operating mechanism are sealed in the cavity of the solid-sealed pole.

In actual work, the high-voltage switch module 2 can be composed of a load switch-fuse combined electrical appliance, a rear plug-in high-voltage arrester, a frame structure, and a casing. action, to avoid phase-lack operation, load switch-fuse combination electrical appliances can include load switch, fuse, auxiliary earthing switch, operating mechanism, etc., among them, the load switch adopts vacuum interrupter to extinguish the arc; at the same time, the vacuum interrupter, The fuse base and contact, the static contact of the grounding switch and the conductive elements connected to the above components are casted together with epoxy resin through the APG process to form a solid-sealed pole form, and the outer surface of the pole is sprayed with zinc.

In this way, compared with other forms of high-voltage switches, the volume of the high-voltage switch module in the form of a pole is reduced a lot, and the floor area of the equipment is saved; at the same time, the high-voltage switch module in the form of a pole is used, and the insulating rod and other components are sealed. In the cavity of the solid-sealed pole, the cavity is sealed to isolate the external air, thereby eliminating the generation of condensation and improving the reliability of power supply; The pole is sprayed with a zinc layer to connect the outside to the ground. When the equipment is running, when people touch the pole, accidents will not occur, making the high-voltage switch module more secure.

Further, in the above embodiment, the load switch can also be equipped with a spring mechanism, which can realize the opening and closing operation of the load switch, that is, electric closing or manual closing. When using the operating handle, insert When the corresponding hole position of the spring mechanism is reached, the operating handle can be shaken to complete the closing operation; or, turn on the power, press the closing button, and the motor will rotate until the closing is completed. After the closing is completed, the power will be automatically cut off, and the motor will stop rotating. ;When opening is required, you can press the opening button to complete manual opening, and you can also complete electric opening through the trip coil; when there is a fault current, the fuse striker will pop up through the blowing of the fuse to trigger the load The switch performs an opening action to protect the safety of the main transformer and other high-voltage primary equipment.

In a preferred embodiment of the present invention, the high-voltage switch module is also equipped with a chain, which is set between the load switch and the grounding switch. When the load switch is in the closed state, it is locked by the chain grounding switch and cannot be operated. ;When the grounding switch is in the grounding and closing state, the load switch is locked and cannot be closed to ensure the safety during power outage maintenance and prevent harm caused by misoperation; in actual work, the gate of the high-voltage switch room, the gate of the main transformer room and The door of the secondary distribution box is equipped with an electromagnetic lock. When the primary side has voltage, all doors are forbidden to open. Only when the primary side loses voltage, the electromagnetic lock is unlocked, and the doors of the above modules can be opened to ensure that the equipment and inspection personnel safety.

In a preferred embodiment of the present invention, the secondary distribution box module 3 includes: an incoming and outgoing line unit, a meter unit, an intelligent integrated control unit, a reactive power compensation unit, and a housing; Collecting and displaying the power data of the real-time state of the power distribution area; the intelligent integrated control unit is used to monitor the power data of the real-time state of the secondary distribution box module and output control instructions according to the power data; The occurrence unit is used to adjust the electric energy input according to the control instruction or the overload protection value according to the electric energy data; the reactive power compensation unit is used to perform reactive power compensation on the power distribution area circuit according to the control instruction. The secondary distribution box module has functions such as distribution transformer monitoring, electric energy metering, load distribution, reactive power compensation, residual current action protection, transformer protection, remote data transmission, and intelligent control.

In the above embodiment, the incoming and outgoing line unit includes an incoming line switch and an outgoing line switch; the incoming line switch is provided with a circuit breaker, and the circuit breaker is used to control the incoming line according to the control command output by the intelligent integrated control unit. The switch is turned on or off; the outlet switch is provided with a residual current action protector, and the residual current action protector is used to adjust the overload protection value according to the electric energy data; wherein, the incoming and outgoing circuits can use hard busbars or cable connection.

In actual work, the incoming line switch can use low-voltage molded case circuit breakers to connect and break the load circuit. An important protective device in the power grid; the switch setting current is selected according to 1.2 to 1.5 times the rated current of the distribution transformer, and the incoming line switch is equipped with a circuit breaker with an electric operating mechanism, which can automatically control the on-off of the incoming line switch through the intelligent integrated control unit , suitable for AC 50HZ, rated operating voltage 690V and below, rated operating current up to 800A for infrequent switching and infrequent starting of motors; the incoming line switch is mainly used to distribute electric energy and protect circuits and power supply equipment from Damaged by overload, short circuit, undervoltage and other faults, it can also be used as infrequent starting of the motor and overload, short circuit, undervoltage protection, and has an isolation function. Outlet switch is equipped with residual current action protector, which has communication function and short-circuit breaking capacity, can adjust overload protection value according to transformer capacity or actual load, has automatic reclosing function, leakage action current and sudden change residual action current can be adjusted within the corresponding range ;Suitable for AC 50Hz, rated insulation voltage 690V, rated voltage 400V, rated current up to 400A three-phase four-wire neutral point directly grounded (TT) power distribution network, used to provide leakage indirect contact protection, can also be used to prevent The insulation damage of the equipment will cause the fire hazard caused by the ground fault current, and it can be used to distribute electric energy and protect the overload and short circuit of the circuit and power supply equipment; it has the protection function for the overvoltage of the circuit, the lack of phase, and the disconnection of the zero line on the power supply side.

In the above embodiments, the main contacts of the circuit breaker are closed manually or electrically. After the main contacts are closed, the free tripping mechanism locks the main contacts in the closing position, and the coil of the overcurrent release The thermal element of the thermal release is connected in series with the main circuit, and the coil of the undervoltage release is connected in parallel with the power supply. When the circuit is short-circuited or seriously overloaded, the armature of the over-current release will pull in to make the free tripping mechanism act, and the main contact will disconnect the main circuit. When the circuit is overloaded, the heating element of the thermal release causes the bimetal to bend, pushing the free release mechanism to act, and the main contact disconnects the main circuit; when the circuit is undervoltage, the armature of the undervoltage release is released, and The free tripping mechanism is activated, and the main contact disconnects the main circuit; when the shunt release button is pressed, the armature of the shunt release is attracted, so that the free tripping mechanism operates, and the main contact disconnects the main circuit.

Through the above-mentioned incoming line switch and outgoing line switch, the secondary power distribution box module integrates protection functions such as overload, short circuit, residual current (leakage), phase loss, undervoltage, overvoltage, and neutral line disconnection on the power supply side, and automatic reclosing. In one; at the same time, it adopts A/D conversion digital signal processing technology and CPU intelligent control technology to detect and track the residual current of the line in real time, and automatically determine the residual current action value gear according to the setting, so as to ensure the operation rate and reliability of the residual current protection device , Moreover, the real-time detection of the three-phase load working current, the overload tripping current setting value can be set arbitrarily within the frame current, and will not be affected by the ambient temperature after setting, ensuring sensitive and reliable overload protection.

In a preferred embodiment of the present invention, the intelligent integrated control unit includes a monitoring unit and a management unit; wherein the monitoring unit is composed of one or more of the following monitors: user electricity information monitor, distribution transformer meter A master meter monitor, a residual current action protector monitor, a state monitor, a communication unit and an environment detector are used to monitor the power data of the real-time state of the secondary distribution box module; the management unit includes a power quality manager , for outputting a control instruction according to the monitoring data acquired by the monitoring unit.

In the above embodiments, the intelligent integrated control unit has the functions of distribution transformer monitoring and protection, and the main types of monitoring data are:

a AC analog quantity: voltage, current, active power, reactive power, power factor, etc.

b Electric energy data: total electric energy indication value, electric energy indication value of each tariff rate, total electric energy, electric energy of each tariff rate, maximum demand, etc.;

c Electric energy statistical data: voltage pass rate, three-phase unbalance, voltage fluctuation and flicker, temporary or transient overvoltage, voltage sag/interruption/surge, voltage (current) 1~32 harmonic components, Statistical data such as harmonic content rate and total distortion rate, frequency deviation, load rate and power supply continuity;

d Possess multiple protection/alarm functions such as overvoltage protection, overcurrent protection, overload protection, undervoltage protection, overheat protection, and harmonic overrun protection, and complete recording, storage, and reporting at the same time.

eBackground report function: It can analyze, store and parameterize the relevant data, and automatically produce reports and upload them.

Wherein, the functions of each monitor in the above-mentioned intelligent comprehensive control module are as follows:

User power consumption information monitor is used to realize the collection of electric energy information in the distribution station area, including data collection of electric energy meters, working conditions of electric energy metering devices, monitoring of power supply power quality, and monitoring of electric load and electric energy. Handles storage, management and transmission. The monitor of the distribution transformer meter is used to realize the comprehensive management of the smart energy meter in the public distribution area, assess the effectiveness of its measurement, analyze, judge, and alarm the abnormal operation status of the smart energy meter, and complete the relevant information transmission. The residual current operated protector monitor is used to realize the monitoring of the operating status and residual current value of the residual current operated protector, and has the functions of recording, storing and uploading. The status monitor is used for real-time monitoring of the outlet switch status of the station area, the capacitor switching status and the operation status of the intelligent integrated control module, etc., and has an abnormal alarm function. The power quality manager is used to support dynamic reactive power compensation and active filter hybrid mode, fast and dynamic compensation for reactive power in the distribution station area, suppression of harmonics with changing frequency and magnitude, and tracking and compensation of rapidly changing loads harmonics, and can control the three-phase unbalanced load problem in the station area. The communication unit is used to provide access methods such as wireless connection, and complete two-way data interaction with operation and maintenance personnel and users. The environmental detector is used to monitor the temperature and humidity information of outdoor distribution boxes, distribution stations and box transformers in real time through temperature and humidity sensors.

In order to show the electric energy information obtained by the above-mentioned monitors more clearly, a display can also be set up in actual work to realize human-computer interaction. Through the display and button control system, the man-machine dialogue can be operated conveniently and simply; Provide a wealth of light indication information to make the display of transformer station operation information more intuitive.

In a preferred embodiment of the present invention, the metering unit can be an intelligent multifunctional electronic watt-hour meter with an optional precision of 0.2s and a communication function; the metering unit is provided with a current mutual inductance The current transformer is casted with epoxy resin. When working, the current transformer converts a large current into a small current with a lower voltage, which is supplied to the instrument and protection device, and connects the instrument and protection device to the The high-voltage circuit is separated; the accuracy of the metering transformer is 0.5s, the accuracy of the measuring transformer is 0.5, the secondary rated current is 5A, the rated output capacity: 10VA, temperature resistance, no cracks, and a life of more than 15 years. Take waterproof measures.

In the above embodiment, the metering unit is also provided with a display unit and a monitoring unit, the display unit is used to display the total electric energy value, the electric energy value of each tariff, the total electric energy, the electric energy of each tariff, The maximum demand, etc.; the monitoring unit is used to monitor the status information such as the change of electric energy meter parameters, time out-of-tolerance, fault information, electric energy display degree drop, electric energy out-of-tolerance, flying away, stop and go; in actual work, the The opening and closing door of the meter unit can also be equipped with a lead seal and a lock seal to have an anti-theft function.

In a preferred embodiment of the present invention, the reactive power compensation unit includes: a capacitor compensator and a filter, and the capacitor compensator is used to perform reactive power compensation on the power distribution area circuit according to the control instruction. Among them, the filter can be selected according to the actual situation. When the distribution station area has filtering requirements, the above filter can be used; through the above capacitor compensator, the reactive power compensation unit provided by the utility model can realize three-phase co-compensation, Phase-separated compensation or hybrid compensation mode combining three-phase common compensation and phase-separated compensation, in which the common compensation capacitor adopts angle connection, and the divided compensation capacitor adopts star connection. The common compensation is suitable for symmetrical loads, and the divided compensation is suitable for asymmetrical or impact loads For the station area with complex load conditions, the mixed compensation mode should be adopted.

In a preferred embodiment of the present invention, the self-healing low-voltage power capacitor can use a single-layer polypropylene film as a medium, and a layer of thin metal is evaporated on the surface as a conductive electrode. When an excessively high voltage is applied, the polypropylene film The electrical weak point is broken down, the impedance of the breakdown point is significantly reduced, and the current density flowing through it increases sharply, which causes the metallized coating to generate high heat, and the metal conductor around the breakdown point quickly evaporates and dissipates, forming a blank area of the metal coating, and the breakdown point Automatic restoration of insulation.

The beneficial technical effects of the utility model are:

1. Reduce the volume of the high-voltage switch used in the integrated distribution type fully insulated distribution station area, reduce the occupied area, and reduce the user's land cost;

2. Integrating the high-voltage switch and the integrated distribution type fully insulated distribution station into one, the standardized and universal design improves the interchangeability of the switch, facilitates the design, production, and after-sales of the manufacturer, and improves the standardization and universal design. switch interchangeability;

3. Integrated installation, easy to transport and easy to maintain;

4. The application of epoxy solid-sealed circuit breakers in the integrated distribution type fully insulated distribution station area greatly improves the electrical insulation performance of the distribution station area, thereby greatly improving the reliability of power supply. Provides a solid foundation.

The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present utility model in detail. Within the protection scope of the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims (10)

1. An intelligent distribution station area, characterized in that, the distribution station area includes: a main transformer module, a high-voltage switch module and a secondary distribution box module; The main transformer module, the high voltage switch module and the secondary distribution box module are arranged between the transmission line and the power distribution area; Wherein the high-voltage switch module is connected to the transmission line, and is used for breaking the connection between the power distribution area and the transmission line when a fault occurs in the power distribution area; The main transformer module is connected to the high-voltage switch module for adjusting the output voltage of the transmission line; The secondary distribution box module is connected to the main transformer module, and is used for monitoring the real-time status of the power distribution area, and adjusting the load of the multi-phase circuit in the power distribution area according to the real-time status. 2. The intelligent distribution station area according to claim 1, wherein the main transformer module includes a power transformer, a conductive connector and a protective net; the power transformer is respectively connected to the high-voltage switch module through a conductive connector It is connected with the secondary distribution box module; the protective net is used to protect the power transformer and the conductive connector. 3. The intelligent distribution station area according to claim 1, characterized in that, the high-voltage switch module comprises: a load switch-fuse combined electrical appliance, a high-voltage arrester, a skeleton and a shell; The load switch-fuse combination and the high-voltage arrester are fixed inside the shell through a skeleton; Wherein, the load switch-fuse combination is used to protect the transmission line by triggering the load switch through the fuse; The high-voltage arrester is used to protect the intelligent distribution station area from lightning damage. 4. The intelligent distribution station area according to claim 3, wherein the load switch-fuse combination includes a load switch, a fuse, a grounding switch and an operating mechanism; The load switch is used to close or break the connection between the power distribution area and the transmission line; The operating mechanism is used to control the closing or breaking of the load switch; The fuse is used to control the load switch to cut off the connection between the power distribution area and the transmission line through the operating mechanism when a fault occurs in the power distribution area; The grounding switch is associated with the load switch, when the load switch is closed, the grounding switch is locked, and when the grounding switch is closed, the load switch is locked, for the distribution station disconnecting the connection between the power distribution area and the transmission line during maintenance of the area. 5. The intelligent distribution station area according to claim 4, characterized in that, the load switch-fuse combination also includes a solid-sealed pole, and the solid-sealed pole is used to seal the vacuum interrupter, Fuse base and contacts, grounding switch static contacts and conductive elements between them. 6. The intelligent distribution station area according to claim 1, wherein the secondary distribution box module comprises: an incoming and outgoing line unit, a meter unit, an intelligent integrated control unit, a reactive power compensation unit, and a housing; The meter unit is used to collect and display the real-time power data of the power distribution area; The intelligent integrated control unit is used to monitor the power data of the real-time status of the secondary distribution box module and output control instructions according to the power data; The line inlet and outlet unit is used to adjust the power input according to the control instruction or adjust the overload protection value according to the power data; The reactive power compensation unit is used to perform reactive power compensation to the power distribution area circuit according to the control instruction. 7. The intelligent distribution station area according to claim 6, wherein the incoming and outgoing line unit includes an incoming line switch and an outgoing line switch; The incoming line switch is provided with a circuit breaker, and the circuit breaker is used to control the closing or opening of the incoming line switch according to the control instruction output by the intelligent integrated control unit; The outlet switch is provided with a residual current operated protector, and the residual current operated protector is used to adjust the overload protection value according to the electric energy data. 8. The intelligent distribution station area according to claim 6, wherein the intelligent integrated control unit includes a monitoring unit and a management unit; The monitoring unit is composed of one or more of the following monitors: user electricity information monitor, distribution meter master monitor, residual current action protector monitor, status monitor, communication unit and environment detector, Electric energy data for monitoring the real-time status of the secondary distribution box module; The management unit includes a power quality manager, configured to output control instructions according to the monitoring data acquired by the monitoring unit. 9. The intelligent power distribution area according to claim 6, wherein the reactive power compensation unit comprises: a capacitor compensator, and the capacitor compensator is used to perform reactive power on the power distribution area circuit according to the control instruction. compensate. 10. The intelligent distribution station area according to claim 9, wherein the reactive power compensation unit further comprises a filter.