CN209448321U - One or two fusion ring network cabinets - Google Patents

One or two fusion ring network cabinets Download PDF

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Publication number
CN209448321U
CN209448321U CN201822275708.4U CN201822275708U CN209448321U CN 209448321 U CN209448321 U CN 209448321U CN 201822275708 U CN201822275708 U CN 201822275708U CN 209448321 U CN209448321 U CN 209448321U
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China
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unit
phase
voltage
load
breaker
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CN201822275708.4U
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戴宁
苏农
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Nanjing Kangni Ring Network Switch Equipment Co Ltd
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Nanjing Kangni Ring Network Switch Equipment Co Ltd
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Abstract

The utility model discloses a kind of one or two fusion ring network cabinets, including cabinet body, it is characterized in that being equipped with power distribution information acquisition device (1), three-phase five-limb electromagnetic potential transformer (2), load switching unit (3), killer switch unit (4), on-load switch and breaker rotating axis switching mechanism (5) and electricity getting device (12) in the cabinet body.Advantage: real-time monitoring monitoring is carried out to distribution line; real-time detection distribution circuit single-phase earth fault, phase fault, overload, three-phase imbalance, load current, switch state and relating operation data; it realizes status monitoring, the route protection, control of distribution line, shortens distribution line failure and search the time.

Description

One or two fusion ring network cabinets
Technical field
The utility model relates to a kind of one or two fusion ring network cabinets, belong to technical field of electric power.
Background technique
Important component of the distribution line as entire distribution network system, is easy for causing once route goes wrong The failure or paralysis of entire electric system, and then the normal life electricity consumption of resident is influenced, hinder economic shape up.Distribution wire Basic link of the road as electric system is the core of whole system, with the continuous development of China's economic technology, power grid Application range it is also more and more extensive, distribution line covering range it is also increasing, from the current application of China's distribution line From the point of view of situation, it is mainly shown as the feature that route is long, covering is wide, range spans are big, Just because of this, the stability of wiring line It is weaker;Once breaking down, it is the thing spent human and material resources very much that investigation, which is got up, it is therefore desirable to a kind of distribution line of realizing The device that distribution line failure searches the time is shortened in monitoring, protection, control.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies of existing technologies, and provides a kind of one or two fusion rings Net cabinet carries out real-time monitoring monitoring, real-time detection distribution circuit single-phase earth fault, phase fault, mistake to distribution line Load, three-phase imbalance, load current, switch state and relating operation data realize status monitoring, the route of distribution line Protection, control shorten distribution line failure and search the time.
In order to solve the above technical problems, the utility model provides a kind of one or two fusion ring network cabinets, including cabinet body, feature It is that power distribution information acquisition device (1), three-phase five-limb electromagnetic potential transformer (2), on-load switch list are equipped in the cabinet body First (3), killer switch unit (4), on-load switch and breaker rotating axis switching mechanism (5) and electricity getting device (12);
The three-phase five-limb electromagnetic potential transformer (2) is separately connected power distribution information acquisition device (1) and takes Denso It sets (12), the electricity getting device (12) is separately connected power distribution information acquisition device (1) and on-load switch and breaker rotating axis switch Mechanism (5), the on-load switch and breaker rotating axis switching mechanism (5) are separately connected load switching unit (3) and breaker is opened It closes unit (4), is equipped with split-phase vacuum interrupter insulating part in the load switching unit (3) and killer switch unit (4) (6), the split-phase vacuum interrupter insulating part (6) is used to carry out arc extinguishing processing, the extended pattern outlet electricity in route disjunction Tensile connector (7) is used for the feeder line of route on cable.
Further, the split-phase vacuum interrupter insulating part (6) includes internal arcing cover (8), vacuum circuit breaker arc extinguishing Room combined insulation part (9), interrupter arc-chutes combined insulation part (10);
Information about power in three-phase five-limb electromagnetic potential transformer (2) the acquisition route, is transferred to power distribution information Acquisition device (1), voltage transmission gives electricity getting device (12) after three-phase five-limb electromagnetic potential transformer (2) will also be isolated, and takes Electric energy is rectified into after direct current by electric installation (12) is transferred to on-load switch and breaker rotating axis switching mechanism (5) and with telecommunications respectively It ceases acquisition device (1), for high voltage electric energy to be converted to secondary side steady dc voltage, powers to distribution acquisition device for power;
Power distribution information acquisition device (1) transmission of control signals is to on-load switch and breaker rotating axis switching mechanism (5) Come driving load switch unit (3) or killer switch unit (4) division, route electric energy on extended pattern outlet cable by stretching Connector (7) carries out feeder line power output, and route disjunction generates electric arc and passes through inside into split-phase vacuum interrupter insulating part (6) Arcing cover (8), vacuum circuit-breaker arc extinguishing chamber combined insulation part (9), interrupter arc-chutes combined insulation part (10) carry out arc extinguishing Processing.
It further, further include circuit breaker position observation window (11), circuit breaker position observation window (11) is arranged outside cabinet body Ring main unit load switch unit (3) or killer switch unit (4) specific location is observed for operator on shell.
Further, it is additionally provided with lightning protected module on the electricity getting device, protects voltage transformer not by with cable Road lightning impulse and damage.
Further, load switching unit (3), the killer switch unit (4) of the ring network cabinet configuration install isolation additional Switch forms the combined electrical apparatus that vacuum circuit breaker is merged with disconnecting switch, increases visible isolation cut-off point, has reliable chain Operation, improves reliability and security performance.
Further, the power distribution information acquisition device (1) include electrical signal collection unit, main control unit, communication unit, Backup power supply;Ac signal after isolation is transferred to electric signal and adopted by three-phase five-limb electromagnetic potential transformer (2) Collect unit, alternation analog signal is changed into direct current signal by A/D conversion circuit, is transferred to master control list by electrical signal collection unit Member, after main control unit single chip circuit acquires direct current signal, output controls signal to drive each output relay, main control unit Simultaneously by the electrical signal information of acquisition by telecommunication circuit, the digital signal for being transformed into Standards Code is exported single chip circuit to letter Cease acquisition system, the backup power supply, for providing electric energy to electrical signal collection unit, main control unit, communication unit.
The utility model it is achieved the utility model has the advantages that
(1) present invention carries out looped network cabinet equipment ontology, power supply unit, measuring unit and power information acquisition device (1) It is integrated to be based on Combined design, it realizes and collects protection, control, measurement, remote control four-in-one, power information acquisition device (1) low-power consumption is erected Formula cabinet design sends information system backstage main station system by Standards Code for collected data, passes through backstage main website Realize that " three is distant " function, ring network cabinet are configured with breaker and have installed disconnecting switch additional, form vacuum circuit breaker and melt with disconnecting switch The combined electrical apparatus of conjunction increases visible isolation cut-off point, and has reliable chain operation, improves reliability and safety Energy;
(2) all secondary connections of the present invention complete in factory, reduce the risk of site operation wiring error.Scene only needs one Construction can be completed in secondary installation apparatus body, and short construction period reduces power off time etc.;
(3) outlet of all high-tension current inductors of the present invention all have passed through the conversion of secondary current mutual inductor in pedestal Processing.When distribution acquisition device for power is not installed, it is not required to consider the risk of high-tension current inductor open circuit, reduces site operation and accidentally grasp Make accident;
(4) present invention carries out real-time monitoring monitoring to distribution line, real-time detection distribution circuit single-phase earth fault, alternate Short trouble, overload, three-phase imbalance, load current, switch state and related operation data, realize the prison of distribution line It surveys, protection, control, shortens distribution line failure and search the time;
(5) present invention is mainly used for the pre-buried route of 10kV distribution, be have cut-off line current, telemetering, remote signalling, remote control, Fault detection be isolated, protect definite value adjustment etc. functions automation equipment, install it is simple, easy to maintain, be distribution line feedback Line automation system preferred unit.
Detailed description of the invention
Fig. 1-1 is the front view of the structural schematic diagram of the utility model embodiment;
Fig. 1-2 is the front view of the structural schematic diagram of the utility model embodiment;
Fig. 2 is the working principle diagram of the utility model embodiment.
Fig. 3 is the electricity getting device schematic diagram of the utility model embodiment.
Specific embodiment
The utility model is further described with reference to the accompanying drawing.Following embodiment is only used for clearly illustrating this The technical solution of utility model, and cannot be used as a limitation the limitation protection scope of the utility model.
As shown in Fig. 1-1, Fig. 1-2, Fig. 2, load switching unit 3 and 4 ontology of killer switch unit are arranged in ring network cabinet Breaker unit gas tank in, feeder line is provided with load on cabinet body and is opened by tensile connector (7) output on extended pattern outlet cable Connection connects PT unit.On-load switch and killer switch are all made of three-phase column support type full-closed structure, by internal arcing cover (8), Vacuum circuit-breaker arc extinguishing chamber combined insulation part (9), interrupter arc-chutes combined insulation part (10) are all cast in split-phase vacuum Arc-chutes insulating part (6) is internal.Good seal performance, it is moisture-proof, anti-condensation, it is suitable for severe cold or hot humid area.Three-phase pillar An inside and outside line terminals increase full skirt, greatly increase creepage distance, meet 2000 meters of height above sea level or less regional uses and want It asks.
Cabinet body control room is internally provided with power distribution information acquisition device (1), and the power distribution information acquisition device (1) includes electricity Signal acquisition unit, main control unit, communication unit, backup power supply;Three-phase five-limb electromagnetic potential transformer (2) will be every Ac signal from after is transferred to electrical signal collection unit, and electrical signal collection unit converts alternation analog signal by A/D Circuit is changed into direct current signal, is transferred to main control unit, and the control chip in main control unit uses the 32 of MOTOROLA company Bit microprocessor MC68332 after main control unit acquires direct current signal, export and controls signal to control circuit, and control circuit is driven Move each output relay.Main control unit single chip circuit is transformed into simultaneously by the electrical signal information of acquisition by telecommunication circuit The digital signal of Standards Code is exported to information acquisition system.The backup power supply, for giving power distribution information acquisition device (1) acquisition unit, main control unit, communication unit provides electric energy;The power distribution information acquisition device (1) carries out AC signal and adopts Collection, the parameters such as measurement feeder line phase voltage, electric current, power, will test data by Standards Code and is uploaded to daemon software management system System, grasps route operating status in real time, and the division of remote control switch can when single-phase earthing or phase fault occurs By fault section isolation or excision.Power distribution information acquisition device (1) can provide 1 loop line road (4 voltage, 4 electric current, wherein 3 measurements Voltage, 3 measurements electric currents, 1 zero-sequence current, 1 residual voltage) analog quantity, the acquisition of 1 intake, 3 output control. In addition reserved GPS positioning, serial communication, the acquisition of 3 tunnel intakes, electronic mutual inductor acquisition can also adjust according to the demand of user Configuration.
In the present embodiment, as shown in figure 3, the electricity getting device include be sequentially connected take electric induction coil, transformation device, Filter module, rectification module, voltage-stabilizing device and energy-storage module;Transformation device mainly includes high-voltage capacitance and voltage transformer; It is described to take electric induction coil that power grid AC signal is conveyed to transformation device, using in transformation device high-voltage capacitance and voltage it is mutual High voltage electric energy in distribution line is converted to low-voltage electric energy by sensor, and transformation device is transferred to rectification after handling by filter module Module is rectified, rectification module pass through again voltage-stabilizing device will export stable DC voltage to energy-storage module, energy-storage module is used for It is opened to power information acquisition device (1), load switching unit (3), killer switch unit (4), on-load switch and breaker rotating axis Shutting mechanism (5) power supply;It takes and is additionally provided with lightning protected module on electric induction coil, protect voltage transformer not by distribution line thunder Surge and damage.
The principle of the present embodiment is: electricity getting device will be handed over by three-phase five-limb electromagnetic potential transformer (2) after isolation Galvanic electricity is rectified into after direct current is transferred to on-load switch and breaker rotating axis switching mechanism (5) and power distribution information acquisition device respectively (1).Current transformer acquires current signal and presses conversion through overcurrent, and voltage transformer collection voltages signal passes through partial pressure switch, 6 tunnels Signal by signal processing unit convert out electric current, voltage, zero-sequence current, residual voltage secondary singal (Ia Ib Ic Io Ua Ub Uc Uo) and and breaker control signal (separating brake, combined floodgate, energy storage) together by high shielded cable connection It inputs power information acquisition device (1), power information acquisition device (1) is after signal is filtered, by communication module by signal Reach system background.Such as line failure, power information acquisition device (1) can control breaker point according to predetermined control strategy Lock, isolated fault can also be received Background control instruction by power information acquisition device (1) and be remotely controlled to breaker.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art For art personnel, without deviating from the technical principle of the utility model, several improvement and deformations can also be made, these change It also should be regarded as the protection scope of the utility model into deformation.

Claims (7)

1. a kind of one or two fusion ring network cabinets, including cabinet body, characterized in that be equipped with power distribution information acquisition device in the cabinet body (1), three-phase five-limb electromagnetic potential transformer (2), load switching unit (3), killer switch unit (4), on-load switch And breaker rotating axis switching mechanism (5) and electricity getting device (12);
The three-phase five-limb electromagnetic potential transformer (2) is separately connected power distribution information acquisition device (1) and electricity getting device (12), the electricity getting device (12) is separately connected power distribution information acquisition device (1) and on-load switch and breaker rotating axis switching on and shutting down Structure (5), the on-load switch and breaker rotating axis switching mechanism (5) are separately connected load switching unit (3) and killer switch Split-phase vacuum interrupter insulating part is equipped in unit (4), the load switching unit (3) and killer switch unit (4) (6), the split-phase vacuum interrupter insulating part (6) is used to carry out arc extinguishing processing in route disjunction, and feeder line is gone out by extended pattern Tensile connector (7) exports on line cable.
2. one or two fusions ring network cabinet according to claim 1, which is characterized in that the split-phase vacuum interrupter insulating part It (6) include internal arcing cover (8), vacuum circuit-breaker arc extinguishing chamber combined insulation part (9), interrupter arc-chutes combined insulation part (10), internal arcing cover (8), vacuum circuit-breaker arc extinguishing chamber combined insulation part (9), interrupter arc-chutes combined insulation part (10) It is internal to be cast in split-phase vacuum interrupter insulating part (6);
Information about power in three-phase five-limb electromagnetic potential transformer (2) the acquisition route, is transferred to power distribution information acquisition Device (1), voltage transmission gives electricity getting device (12) after three-phase five-limb electromagnetic potential transformer (2) will also be isolated, and takes Denso It sets (12) electric energy is rectified into after direct current and be transferred to on-load switch and breaker rotating axis switching mechanism (5) respectively and power distribution information is adopted Acquisition means (1);
Power distribution information acquisition device (1) transmission of control signals drives to on-load switch and breaker rotating axis switching mechanism (5) Dynamic load switch unit (3) or killer switch unit (4) division, route electric energy pass through tensile connector on extended pattern outlet cable (7) feeder line power output is carried out, route disjunction generates electric arc and passes through internal arcing into split-phase vacuum interrupter insulating part (6) Cover (8), vacuum circuit-breaker arc extinguishing chamber combined insulation part (9), interrupter arc-chutes combined insulation part (10) progress arc extinguishing processing.
3. one or two fusions ring network cabinet according to claim 1, characterized in that further include circuit breaker position observation window (11), circuit breaker position observation window (11), which is arranged on cabinet body shell, observes ring main unit load switch unit for operator (3) or killer switch unit (4) specific location.
4. one or two fusions ring network cabinet according to claim 1, characterized in that the electricity getting device includes being sequentially connected Electric induction coil, transformation device, filter module, rectification module, voltage-stabilizing device and energy-storage module are taken, the transformation device is main Including high-voltage capacitance and voltage transformer;It is described to take electric induction coil that power grid AC signal is conveyed to transformation device, utilize change High voltage electric energy in distribution line is converted to low-voltage electric energy by high-voltage capacitance and voltage transformer in voltage device, then passes through filtering It is transferred to rectification module after resume module to be rectified, rectification module exports stable DC voltage to energy storage by voltage-stabilizing device again Module, energy-storage module to power information acquisition device (1), load switching unit (3), killer switch unit (4), load for opening It closes and breaker rotating axis switching mechanism (5) is powered.
5. one or two fusions ring network cabinet according to claim 1, characterized in that be additionally provided with thunder and lightning on the electricity getting device Protective module protects voltage transformer not damaged by distribution line lightning impulse.
6. one or two fusions ring network cabinet according to claim 1, characterized in that the on-load switch list of the ring network cabinet configuration First (3), killer switch unit (4) install disconnecting switch additional, form the combined electrical apparatus that vacuum circuit breaker is merged with disconnecting switch, Increase visible isolation cut-off point.
7. one or two fusions ring network cabinet according to claim 1, characterized in that power distribution information acquisition device (1) packet Unit containing electrical signal collection, main control unit, communication unit, backup power supply;Three-phase five-limb electromagnetic potential transformer (2) Ac signal after isolation is transferred to electrical signal collection unit, alternation analog signal is passed through A/D by electrical signal collection unit Conversion circuit is changed into direct current signal, is transferred to main control unit, after main control unit single chip circuit acquires direct current signal, output control Signal processed drives each output relay, and the electrical signal information of acquisition passes through communication electricity simultaneously by main control unit single chip circuit Road, the digital signal for being transformed into Standards Code are exported to information acquisition system, the backup power supply, for adopting to electric signal Collect unit, main control unit, communication unit and electric energy is provided.
CN201822275708.4U 2018-12-29 2018-12-29 One or two fusion ring network cabinets Active CN209448321U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112202076A (en) * 2020-09-24 2021-01-08 国网电力科学研究院有限公司 Primary and secondary fusion ring main unit based on electronic sensor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112202076A (en) * 2020-09-24 2021-01-08 国网电力科学研究院有限公司 Primary and secondary fusion ring main unit based on electronic sensor

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