CN204179552U - Intelligent ring main unit - Google Patents

Intelligent ring main unit Download PDF

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Publication number
CN204179552U
CN204179552U CN201420328876.4U CN201420328876U CN204179552U CN 204179552 U CN204179552 U CN 204179552U CN 201420328876 U CN201420328876 U CN 201420328876U CN 204179552 U CN204179552 U CN 204179552U
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China
Prior art keywords
switch
main unit
ring main
intelligent
drawer
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Expired - Fee Related
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CN201420328876.4U
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Chinese (zh)
Inventor
王永法
朱维娜
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王永法
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Priority to CN201420328876.4U priority Critical patent/CN204179552U/en
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Abstract

A kind of intelligent ring main unit, comprise ring main unit body and intelligent terminal, ring main unit body includes loop service entrance switch, loop outlet switch and at least one road branch road outlet switch, described each way switch forms switch cubicle all separately, it is characterized in that: each way switch is drawer type solid all-insulated switch, intelligent terminal is by the data analysis failure judgement region of central processing unit to collection, by control module console switch fault isolated and recover non-faulting district and power, man-machine interface realizes electric operating by intelligent terminal to each way switch, also by communication module and main website communication, realize " four shake " function.The utility model has the advantage of: the power supply that can realize the fault automatic location of switch and circuit, isolation and non-faulting district, realize distribution network systems self-healing and fault pre-alarming, allow each ring-main unit become a miniature main station system, and carry out site examining and repairing and replacing when product bug without the need to having a power failure to non-faulting district.

Description

Intelligent ring main unit
Technical field
The utility model relates to a kind of ring main unit, especially relates to a kind of intelligent ring main unit.
Background technology
Power distribution network to generate electricity, the system that transmission system is connected with user, the power construction of China for a long time retransmits electricity always, transmission of electricity, light distribution, power supply, always less than normal to the input of distribution, and distribution existence range is wide, product variety is mixed, the problem that automaticity is low, along with user is to the raising of power supply reliability and the quality of power supply, country increases the transformation dynamics to urban power distribution network, urban power distribution network cable and multiloop are powered becomes following development trend, how to improve the reliability of urban power distribution network, determine fault zone fast, the power supply in isolated fault and recovery non-faulting district, realize the major subjects that Automatic dispatching is distribution safety and economic operation.
Ring main unit, as city power distribution cable system system key equipment, plays a part to distribute electric energy, contact loop grid and isolated fault.Existing ring main unit divides plain edition and intelligent, and plain edition ring main unit is only simply born and distributed electric energy function, and having a power failure completely during fault needs execute-in-place isolated fault, recovers non-faulting district and powers; Intelligent ring main unit generally divides two classes: one is main website type, main website is by collecting the information of all field apparatuss, failure judgement position, Fault Isolation is carried out in automatic or manual instruction, recovers non-faulting district and powers, and shortcoming relies on powerful communication system and main station system, light requirement fiber communication, main website need process huge data, high to equipment requirement, and overall investment is large; Two is coincidence types; by the multiple shot reclosing of automatic circuit relevant on circuit; determine faulty section; carry out Fault Isolation and non-faulting district restores electricity; shortcoming is that multiple shot reclosing easily causes damage to circuit and equipment; the simultaneity factor deadline is long, cannot again according to original protection of adjusting after system reconfiguration.Simultaneously more crucially current all ring main unit faults time need interruption maintenance, coverage is wide, makes troubles and economic loss to power department and user.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned prior art present situation, there is provided that a kind of volume is little, environmental protection, all insulation, can power in breakdown judge, Fault Isolation and non-faulting district on the spot, realize ceaselessly overhauling function, and each ring main unit can be allowed to become the intelligent ring main unit of a miniature main station system.
The utility model solves the problems of the technologies described above adopted technical scheme: this intelligent ring main unit comprises ring main unit body and intelligent terminal, described ring main unit body includes loop service entrance switch, loop outlet switch and at least one road branch road outlet switch, described each way switch forms switch cubicle all separately, it is characterized in that: described each way switch is drawer type solid all-insulated switch, described switch cubicle has included the first man-machine interface, drawer room and cable vault, described intelligent terminal includes central processing unit and coupled acquisition module, memory module, communication module, control module, second man-machine interface, power module, described central processing unit is built-in with expert system, described acquisition module is gathered the corresponding electric signal of described each way switch and switch position signal and is stored by memory module, described expert system is according to storing signal in a storage module and being realized the divide-shut brake of described switch by described control module, and upload relevant information by described communication module to main website, described power module is monitored by described central processing unit and is that the secondary line of central processing unit and described switch is powered.
Preferably, described loop service entrance switch, loop outlet switch and branch road outlet switch are all with earthed switch, the earth connection be connected with earthed switch is provided with earth current instrument transformer, the threephase cable of described each switch is also provided with zero sequence current mutual inductor, and described earth current instrument transformer is all connected with described acquisition module with zero sequence current mutual inductor.Earth current instrument transformer can be used for monitoring killing arc chamber operation conditions, and zero sequence earth current instrument transformer can be used for Monitoring Line whether fault.
Further preferably, described loop service entrance switch and the long cable section of ingoing line end of loop outlet switch are all with the first voltage transformer, and the first described voltage transformer is connected with described acquisition module.This first voltage transformer is for detecting loop wire voltage and providing power supply effect.
Further preferably, described intelligent ring main unit also comprises a voltage transformer cabinet, and the voltage transformer in this voltage transformer cabinet is connected with described acquisition module.
Further preferably, the first described man-machine interface is all connected with central processing unit with the second man-machine interface, realizes electric operating through central processing unit by control module to switch, and recalls through central processing unit and show memory module data.
Further preferably, described intelligent terminal is by described communication module and main website communication.Further, " four shake " function is realized.
Further preferably, between described intelligent terminal and ring main unit body, communication adopts plastic fiber communication.
Described drawer type all-insulated switch can have various structures, preferably, described drawer type solid all-insulated switch comprises drawer, drawer room, drawout chassis and the line jockey be arranged on drawout chassis, described drawout chassis is be fixed on the first drawout chassis on drawer room and the second drawout chassis, three station vacuum arc extinguish chambers are provided with in described drawer, first moving contact and the second moving contact, the first described moving contact and the second moving contact synchronously plug cooperation along with the twitch of drawer is formed with the first described drawout chassis and the second drawout chassis respectively, described first drawout chassis and the first moving contact and described second drawout chassis and the second moving contact are equipped with can inserting respective current-carrying part is hidden in inner insulating case mutually, three described station vacuum arc extinguish chambers include static conductive rod, moving conductive rod and earth terminal, described earth terminal is electrically connected with the ground connection guide rod being located at drawer indoor, described static conductive rod remains with described first moving contact and is electrically connected, described moving conductive rod is electrically connected with the second described moving contact, also be provided with in described drawer and described three station vacuum arc extinguish chambers are closed a floodgate, the operating mechanism of separating brake and ground connection operation.Like this, coordinate because the moving contact of this drawer type solid all-insulated switch is formed to plug with corresponding drawout chassis, and the first drawout chassis and the first moving contact and the second drawout chassis and the second moving contact are equipped with can inserting respective current-carrying part is hidden in inner insulating case mutually, thus the phase spacing of switch can be made little, volume of switch is little, and switch can be made to have combined floodgate by the cooperation of operating mechanism, separating brake, ground connection and isolation four kinds of states, easy and simple to handle, can not have a power failure and safeguard replacing, reduce the inconvenience and economic loss that have a power failure, and environmentally safe.
Further preferably, the first described drawout chassis and the second drawout chassis are equipped with temperature measuring equipment.Can on-line monitoring drawout chassis contact temperature and vacuum interrupter earth current state be given warning in advance by temperature measuring equipment.
Compared with prior art, the utility model has the advantage of: utilize this intelligent ring main unit to distribute electric energy, the corresponding electric signal of monitoring and storage ring wiretap, as voltage, electric current, the electric current of each outlet switch, power, power factor (PF) etc., monitor and store the location status of all switches and the state of all vacuum interrupters, can monitor and store cable earth current and interconnection switch both end voltage, to realize the fault automatic location of switch and circuit, the power supply in isolation and non-faulting district, realize distribution network systems self-healing and fault pre-alarming, each ring-main unit is allowed to become a miniature main station system, and in communication permission situation, send on-the-spot running state information to main website and accept main website remote measurement, remote control, remote signalling, remote regulating signal, and carry out site examining and repairing and replacing when product bug without the need to having a power failure to non-faulting district.
Accompanying drawing explanation
Fig. 1 is the structure chart of the utility model intelligent ring main unit;
Fig. 2 is the once electric exemplary plot of the utility model intelligent ring main unit;
Fig. 3 is the intelligent terminal control block diagram of the utility model intelligent ring main unit;
Fig. 4 is the fault self-recovery example one of the utility model intelligent ring main unit;
Fig. 5 is the fault self-recovery example two of the utility model intelligent ring main unit;
Fig. 6 is the fault self-recovery example three of the utility model intelligent ring main unit;
Fig. 7 is the fault self-recovery example four of the utility model intelligent ring main unit;
Fig. 8 is the structural representation that in the utility model, drawer type solid all-insulated switch adopts circuit breaker;
Fig. 9 is the structural representation that in the utility model, drawer type solid all-insulated switch adopts fuse on-load switch.
Embodiment
As shown in Figure 1, the intelligent ring main unit in the present embodiment comprises ring main unit body and intelligent terminal 4, and ring main unit body includes loop service entrance switch, loop outlet switch and two-way branch road outlet switch, and each way switch can carry out automatically and manual operation.Every way switch forms separately switch cubicle 11, each switch cubicle 11 includes the first man-machine interface 111, drawer room 112 and cable vault 113 all from top to bottom, built-in each phase current mutual inductor, line voltage transformer, drawout chassis contact temperature transducer and position sensor switch, drawer room 112 supplies on-the-spot combined floodgate, separating brake, ground connection and isolation by automatic or manual-operating mechanism, wherein combined floodgate, separating brake, ground connection and isolation are chain each other, particularly ground connection and cable vault chain, prevent from chargedly opening cable vault, realize " five prevent " requirement.Each way switch is drawer type solid all-insulated switch, thus realizes fault service without power-off.At the other control cubicle 12 be provided with intelligent terminal 4 of switch cubicle 11, between intelligent terminal 4 and ring main unit body, communication adopts plastic fiber communication, intelligent terminal 4 realizes field control by the first man-machine interface of switch cubicle 11 to each way switch, namely by the simple source of trouble on the spot automatic control mode automatically complete distribution network systems self-healing and fault pre-alarming, allow each ring-main unit become a miniature main station system.
As shown in Figure 2, this electric diagram goes out ring main unit structure for typical case two enters two, left side two-way is respectively loop service entrance switch 1 and loop outlet switch 2, and switch is circuit breaker, employing is drawer type full-insulation solid switch as shown in Figure 8, this drawer type solid all-insulated switch comprises drawer 91, drawer room, first drawout chassis 93, second drawout chassis 94 and the line jockey be arranged on drawout chassis, this drawer room is the drawer room 112 shown in Fig. 1, three station vacuum arc extinguish chambers 95 are provided with in drawer 91, first moving contact 96 and the second moving contact 97, first moving contact 96 and the second moving contact 97 synchronously plug cooperation along with the twitch of drawer 91 is formed with the first drawout chassis 93 and the second drawout chassis 94 respectively, first drawout chassis and the first moving contact and the second drawout chassis and the second moving contact are equipped with can inserting respective current-carrying part is hidden in inner insulating case mutually, three station vacuum arc extinguish chambers 95 include static conductive rod, moving conductive rod and earth terminal, earth terminal is electrically connected with the ground connection guide rod 98 being located at drawer indoor, static conductive rod remains with the first moving contact 96 and is electrically connected, moving conductive rod is electrically connected with the second moving contact 97 by conductive link 90, also be provided with in drawer 91 and three station vacuum arc extinguish chambers 95 are closed a floodgate, the operating mechanism 99 of separating brake and ground connection operation.In addition, loop service entrance switch 1 and loop outlet switch 2 are also with earthed switch, the earth connection be connected with earthed switch is provided with earth current instrument transformer 61, be used for detecting vacuum interrupter running status, the threephase cable of loop service entrance switch 1 and loop outlet switch 2 is also provided with zero sequence current mutual inductor 62, be used for Monitoring Line whether fault, loop service entrance switch 1 and loop outlet switch 2 also include each phase current mutual inductor 63, the long cable section of ingoing line end of loop service entrance switch 1 and loop outlet switch 2 is all with the first voltage transformer 51, for detecting loop wire voltage and providing power supply, and above-mentioned earth current instrument transformer 61, zero sequence current mutual inductor 62 and the first voltage transformer 51 are all connected with acquisition module 42.
The right two tunnel in electric diagram shown in Fig. 2 is branch road outlet switch 3, and switch is fuse on-load switch; Employing is drawer type full-insulation solid switch as shown in Figure 9, and this drawer type full-insulation solid switch fuse 92 replaces the conductive link 90 in Fig. 8.Branch road outlet switch 3 is also with earthed switch, the earth connection be connected with earthed switch is provided with earth current instrument transformer 61, be used for detecting vacuum interrupter running status, the threephase cable of branch road outlet switch 3 is also provided with zero sequence current mutual inductor 62, be used for Monitoring Line whether fault, loop service entrance switch 1 and loop outlet switch 2 also include each phase current mutual inductor 63, and above-mentioned earth current instrument transformer 61 is all connected with acquisition module 42 with zero sequence current mutual inductor 62.
In addition, also intelligent ring main unit also comprises a voltage transformer cabinet, and the voltage transformer in this voltage transformer cabinet is the second voltage transformer 52 in Fig. 2, and this second voltage transformer is connected with acquisition module 42, whether charged for monitoring loop switch both sides, whether be that interconnection switch uses.
As shown in Figure 3, intelligent terminal 4 includes central processing unit 41, acquisition module 42, memory module 43, communication module 44, control module 45, second man-machine interface 46 and power module 47, and above-mentioned module is conventional module.Central processing unit 41 is built-in with expert system, acquisition module 42 is gathered the corresponding electric signal of each way switch and switch position signal and is stored by memory module 43, expert system is according to the signal be stored in memory module 43 and realized the divide-shut brake of described switch by control module 45, intelligent terminal 4 uploads relevant information to main website, and realizing " four shake " function by communication module 44 and main website communication, power module 47 is monitored by central processing unit 41 and is that the secondary line of central processing unit and switch is powered.In addition, the first described man-machine interface 111 is all connected with central processing unit 41 with the second man-machine interface 46, realizes electric operating through central processing unit 41 by control module 45 pairs of switches, and recalls through central processing unit 41 and show memory module 43 data.
In the present embodiment, power module 47 includes battery and voltage transformer, and this voltage transformer is the second voltage transformer 52, and battery is powered under switch fault state, and this voltage transformer is powered under switch normal operating condition.Communication module 44 can be completed separately or jointly by unit such as optical fiber, power carrier and CDMA and GPRS are wireless according to implementation environment, realizes consecutive points point to-point communication and " four is distant ".Expert system refers to that fault location, isolation and the non-faulting district taked for line fault and product bug restores electricity method: the 1) judgement of line fault and isolation: whether the current value comparing cable grounding line exceedes set point, if represent that this circuit exists earth fault, the switch separating brake (if interconnection switch is then locked) that output order is attached thereto; 2) judgement of switch fault and isolation: the electric current comparing the every phase of each switch in switch cubicle, if inlet wire phase current is greater than all outlet phase current sums, judge that this switch cubicle exists fault, control adjacent upper next stage loop switch separating brake (if interconnection switch is then locked); 3) non-faulting district restores electricity: after the isolation of location, faulty section, and interconnection switch is according to two ends whether decompression, and closing a floodgate within the time of agreement restores electricity to non-faulting district.Above-mentioned interconnection switch refers to that the voltage transformer data at loop switch two ends all show charged, and switch is in open position.
As shown in Figures 4 to 7, the expert system being built in central processing unit is responsible for location to fault, the restoring electricity of isolation and non-faulting district, and its concrete grammar is as follows:
Fig. 4 is the self-healing of line fault:
Circuit A between the first ring main unit a and the second ring main unit b breaks down, this line cord insulation breakdown, the acquisition system of the first ring main unit a and the second ring main unit b collects this road cable grounding current data extremely, the central processing unit of the first ring main unit a and the second ring main unit b is according to this line fault of data judging preset, instruction control module sends the loop outlet switch of signal controlling first ring main unit a and the loop service entrance switch separating brake of the second ring main unit b, Fault Isolation; Interconnection switch 7 simultaneously in the 3rd ring main unit c detects loop inlet wire no-voltage, after waiting for the time of presetting, the interconnection switch 7 that the central processing unit instruction control module of the 3rd ring main unit c sends signal controlling the 3rd ring main unit c closes a floodgate, second ring main unit b restores electricity, non-faulting district restores electricity, and feeder reconfiguration completes.
Fig. 5 is the self-healing of loop switch fault:
When the loop switch B place fault in the second ring main unit b, the acquisition system of the second ring main unit b collect inlet wire current in cabinet be greater than all go out line current, and all outlet current data Non Apparent Abnormalities, the central processing unit of the second ring main unit b is judged to be the loop service entrance switch fault of the second ring main unit b according to the expert system preset, instruction control module sends loop service entrance switch, the outlet switch separating brake of signal controlling second ring main unit b, Fault Isolation; Interconnection switch 7 simultaneously in the 3rd ring main unit c detects loop inlet wire no-voltage, and after waiting for the time of presetting, the interconnection switch 7 that the central processing unit instruction control module of the 3rd ring main unit c sends signal controlling the 3rd ring main unit c closes a floodgate, and feeder reconfiguration completes.
Fig. 6 is the fault self-recovery of switch failure:
When the loop switch B place fault in the second ring main unit b, the acquisition system of the second ring main unit b collect inlet wire current in cabinet be greater than all go out line current, and all outlet current data Non Apparent Abnormalities, the central processing unit of the second ring main unit b is judged to be the loop service entrance switch fault of the second ring main unit b according to the expert system preset, instruction control module sends the loop service entrance switch of signal controlling second ring main unit b, outlet switch separating brake, and the tripping of loop service entrance switch, the central processing unit of the second ring main unit b according to expert system by control module to earth connection signal of telecommunication of loop inlet wire cable, the earth current instrument transformer of the loop outlet cable of the first ring main unit a detects data exception, or point-to-point communication mode controls the first ring main unit a, the central processing unit of the first ring main unit a controls the loop outlet switch separating brake of the first ring main unit a by control module, Fault Isolation, interconnection switch 7 simultaneously in the 3rd ring main unit c detects loop inlet wire no-voltage, and after waiting for the time of presetting, the interconnection switch 7 that the central processing unit instruction control module of the 3rd ring main unit c sends signal controlling the 3rd ring main unit c closes a floodgate, and feeder reconfiguration completes.
Fig. 7 is the self-healing of branch switch fault:
When the branch switch C place fault in the second ring main unit b, the acquisition system of the second ring main unit b collect inlet wire current in cabinet be greater than all go out line current, and branch switch C current data is obviously abnormal, the central processing unit of the second ring main unit b is judged to be the branch switch C place fault of the second ring main unit b according to the expert system preset, instruction control module sends loop service entrance switch, the outlet switch separating brake of signal controlling second ring main unit b, Fault Isolation; Interconnection switch 7 simultaneously in the 3rd ring main unit c detects loop inlet wire no-voltage, and after waiting for the time of presetting, the central processing unit instruction control module of the 3rd ring main unit c sends the interconnection switch combined floodgate of signal controlling the 3rd ring main unit c, and feeder reconfiguration completes.
In addition, the 4th ring main unit d is adjacent with the 3rd ring main unit c, and the leading-out terminal being provided with the first sectionalizer the 81, four ring main unit d in the end of incoming cables of the first ring main unit a is provided with the second sectionalizer 82.
Known by above-mentioned four fault self-recovery examples, this intelligent ring main unit realizes automatically judging line fault, the fault of product own, isolating and non-faulting district service restoration under without communication system or point-to-point communication situation, namely by the simple source of trouble on the spot automatic control mode automatically realize distribution network systems self-healing, realize the automation that distribution network systems is real, not needing during product bug to have a power failure to non-faulting district just can site examining and repairing and replacing, without the need to main website with do not need reclosing fault self-recovery, and troubleshooting is fast.In addition, this intelligent ring main unit also has that volume is little, all insulation, adaptation adverse circumstances, environmental protection, can realize the advantage of " four is distant ", is network system renewal product.
The foregoing is only preferred implementation of the present utility model; it should be pointed out that for those of ordinary skills, do not departing under principle prerequisite of the present utility model; can carry out multiple remodeling or improvement to the utility model, these are all regarded as within protection range of the present utility model.

Claims (9)

1. an intelligent ring main unit, comprise ring main unit body and intelligent terminal (4), described ring main unit body includes loop service entrance switch (1), loop outlet switch (2) and at least one road branch road outlet switch (3), described each way switch forms all separately switch cubicle (11), it is characterized in that: described each way switch is drawer type solid all-insulated switch, described switch cubicle (11) has included the first man-machine interface (111), drawer room (112) and cable vault (113), described intelligent terminal (4) includes central processing unit (41) and coupled acquisition module (42), memory module (43), communication module (44), control module (45), second man-machine interface (46), power module (47), described central processing unit (41) is built-in with expert system, described acquisition module (42) is gathered the corresponding electric signal of described each way switch and switch position signal and is stored by memory module (43), described expert system realizes the divide-shut brake of described switch according to the signal be stored in memory module (43) and by described control module (45), and upload relevant information by described communication module (44) to main website, described power module (47) is monitored by described central processing unit (41) and is that the secondary line of central processing unit and described switch is powered.
2. intelligent ring main unit according to claim 1, it is characterized in that: described loop service entrance switch (1), loop outlet switch (2) and branch road outlet switch (3) are all with earthed switch, the earth connection be connected with earthed switch is provided with earth current instrument transformer (61), the threephase cable of described each switch is also provided with zero sequence current mutual inductor (62), described earth current instrument transformer (61) and zero sequence current mutual inductor (62) are all connected with described acquisition module (42).
3. intelligent ring main unit according to claim 1, it is characterized in that: described loop service entrance switch (1) and the long cable section of ingoing line end of loop outlet switch (2) are all with the first voltage transformer (51), and described the first voltage transformer (51) is connected with described acquisition module (42).
4. intelligent ring main unit according to claim 1, is characterized in that: also comprise a voltage transformer cabinet, and the voltage transformer in this voltage transformer cabinet is connected with described acquisition module (42).
5. intelligent ring main unit according to claim 1, it is characterized in that: described the first man-machine interface (111) is all connected with central processing unit (41) with the second man-machine interface (46), by control module (45), electric operating is realized to switch through central processing unit (41), and recall through central processing unit (41) and show memory module (43) data.
6. intelligent ring main unit according to claim 1, is characterized in that: described intelligent terminal (4) is by described communication module (44) and main website communication.
7. intelligent ring main unit according to claim 1, is characterized in that: between described intelligent terminal (4) and ring main unit body, communication adopts plastic fiber communication.
8. the intelligent ring main unit according to claim arbitrary in claim 1 to 7, it is characterized in that: described drawer type solid all-insulated switch comprises drawer (91), drawer room, first drawout chassis (93), second drawout chassis (94) and the line jockey be arranged on drawout chassis, three station vacuum arc extinguish chambers (95) are provided with in described drawer (91), first moving contact (96) and the second moving contact (97), described the first moving contact (96) and the second moving contact (97) synchronously plug cooperation along with the twitch of drawer (91) is formed with described the first drawout chassis (93) and the second drawout chassis (94) respectively, described first drawout chassis and the first moving contact and described second drawout chassis and the second moving contact are equipped with can inserting respective current-carrying part is hidden in inner insulating case mutually, described three station vacuum arc extinguish chambers (95) include static conductive rod, moving conductive rod and earth terminal, described earth terminal is electrically connected with the ground connection guide rod (98) being located at drawer indoor, described static conductive rod remains with described first moving contact (96) and is electrically connected, described moving conductive rod is electrically connected with described the second moving contact (97), also be provided with in described drawer (91) and described three station vacuum arc extinguish chambers (95) are closed a floodgate, the operating mechanism (99) of separating brake and ground connection operation.
9. intelligent ring main unit according to claim 8, is characterized in that: on described the first drawout chassis (93) and the second drawout chassis (94), be equipped with temperature measuring equipment (9a).
CN201420328876.4U 2014-06-19 2014-06-19 Intelligent ring main unit Expired - Fee Related CN204179552U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104752963A (en) * 2015-04-25 2015-07-01 杜志刚 Intelligent low-voltage ring main unit
CN104898606A (en) * 2015-04-10 2015-09-09 航天科工深圳(集团)有限公司 Intelligent ring main unit and monitoring unit system and monitoring method thereof
CN105162256A (en) * 2015-09-14 2015-12-16 珠海许继电气有限公司 Protection control method for cable line fault self-recovery of 10kV power distribution network and intelligent complete equipment
CN107168209A (en) * 2017-06-19 2017-09-15 安徽鼎信科技集团有限公司 A kind of intelligent building distribution automatic monitored control system
CN112491033A (en) * 2020-10-10 2021-03-12 广西电网有限责任公司电力科学研究院 Outdoor switch box automation equipment control circuit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104898606A (en) * 2015-04-10 2015-09-09 航天科工深圳(集团)有限公司 Intelligent ring main unit and monitoring unit system and monitoring method thereof
CN104752963A (en) * 2015-04-25 2015-07-01 杜志刚 Intelligent low-voltage ring main unit
CN105162256A (en) * 2015-09-14 2015-12-16 珠海许继电气有限公司 Protection control method for cable line fault self-recovery of 10kV power distribution network and intelligent complete equipment
CN107168209A (en) * 2017-06-19 2017-09-15 安徽鼎信科技集团有限公司 A kind of intelligent building distribution automatic monitored control system
CN112491033A (en) * 2020-10-10 2021-03-12 广西电网有限责任公司电力科学研究院 Outdoor switch box automation equipment control circuit

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Granted publication date: 20150225

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CF01 Termination of patent right due to non-payment of annual fee