CN203800567U - Integrated protection apparatus for low-voltage distribution transformer area - Google Patents
Integrated protection apparatus for low-voltage distribution transformer area Download PDFInfo
- Publication number
- CN203800567U CN203800567U CN201320776868.1U CN201320776868U CN203800567U CN 203800567 U CN203800567 U CN 203800567U CN 201320776868 U CN201320776868 U CN 201320776868U CN 203800567 U CN203800567 U CN 203800567U
- Authority
- CN
- China
- Prior art keywords
- connector board
- module
- card
- monitoring
- liquid crystal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000004224 protection Effects 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 19
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 11
- 230000001012 protector Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 abstract 1
- 230000006870 function Effects 0.000 description 6
- 230000001681 protective effect Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 230000006399 behavior Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The utility model discloses an integrated protection apparatus for a low-voltage distribution transformer area, and the apparatus is used for protecting the transformer area. The apparatus comprises a case, a power connector board, a central processing and storage connector board, a monitoring and protection information input connector board, a control keyboard input connector board, a data liquid-crystal-display connector board, a GSM remote-transmission connector board, a communication unit connector board, and a tripping alarm connector board, wherein the power connector board, the central processing and storage connector board, the monitoring and protection information input connector board, the control keyboard input connector board, the data liquid-crystal-display connector board, the GSM remote-transmission connector board, the communication unit connector board and the tripping alarm connector board are plugged in the case. Each connector board is provided with a corresponding module unit circuit in a welding manner. A power module is connected with each module unit and supplies power to all the module units. The input end of a central processing and storage unit is connected with a monitoring and protection information input module and a control keyboard input module. The output end of the central processing and storage unit is connected with a data liquid crystal display module, a GSM remote-transmission module, and a tripping alarm unit. The apparatus provided by the utility model can be widely used in urban and rural low-voltage distribution networks, achieves the integrated protection for the important parts of the transformer area, and enhances the operation safety of a low-voltage power grid.
Description
Technical field
The utility model relates to a kind of protective device, specifically a kind of transformer platform area protective device.
Background technology
Accelerating new Rural Electrification Construction is the Important Action of realizing urban-rural integration.New Rural Electrification Construction is on the basis of the upgrading of rural power grids, and in order to adapt to, the needs of new rural development carry out.Low-voltage distribution platform district is the important component part of new Rural Electrification Construction, and its safety issue direct relation the security of operation of rural power grids.The protection in low voltage distribution transformer platform district at present also needs personnel to patrol and examine; to low voltage distribution transformer platform district operation conditions comprise whether whether overvoltage, overcurrent, zero line break, three whether detection and protections of the index such as balance; all ununified equipment is realized, and cannot ensure normal, the stable operation of low voltage electric network.
Utility model content
The utility model technical issues that need to address are to provide a kind of low voltage distribution transformer platform district comprehensive protector; can be widely used in the low voltage power distribution network of town and country; the each emphasis part in transformer platform area is unified to protection, strengthen the fail safe of low voltage electric network operation.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
Low voltage distribution transformer platform district comprehensive protector, power insert plate, central authorities' processing and the memory card plate, monitoring and protecting input information card, supervisory keyboard input card, the data liquid crystal display screen that comprise casing and be plugged in casing show card, GSM remote transmission card, communication unit card and tripping alarm card, are welded with respectively corresponding modular unit circuit on each card; Wherein: power module is connected with central authorities' processing and memory cell, monitoring and protecting MIM message input module, supervisory keyboard input module, data liquid crystal display screen display module, GSM remote transmission module, communication unit and tripping alarm unit respectively, the input of central authorities' processing and memory cell is connected with monitoring information protection input module and supervisory keyboard input module respectively; Central authorities process and the output of memory cell is connected with data liquid crystal display screen display module, GSM remote transmission module and tripping alarm unit respectively; Central authorities process and memory cell also intercoms mutually with communication unit; The output of described data liquid crystal display screen display module connects the liquid crystal display screen being arranged on casing front panel, and GSM remote transmission module also connects the handheld terminal of binding with it by wireless network.
Owing to having adopted technique scheme, the technological progress that the utility model is obtained is:
The utility model can be widely used in the low voltage power distribution network of town and country, realizes the each emphasis part in transformer platform area is unified to protection, strengthens the fail safe of low voltage electric network operation.The setting of tripping alarm unit, can, in the time that the accidents such as transformer platform area overvoltage, transformer platform area voltage three-phase imbalance, transformer platform area under-voltage occur, carry out tripping operation or alarm command, the fail safe of protection low voltage electric network operation; The setting of GSM remote transmission module, in the time that failure problems appears in each monitoring and protecting amount, can send to relevant staff by fault message with the form that sends note or call, to fix a breakdown as early as possible.
Brief description of the drawings
Fig. 1 is structured flowchart of the present utility model;
Fig. 2 is the wiring schematic diagram of the each unit of the utility model terminal.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further details:
Low voltage distribution transformer platform district comprehensive protector, its structure as shown in Figure 1, power insert plate, central authorities' processing and the memory card plate, monitoring and protecting input information card, supervisory keyboard input card, the data liquid crystal display screen that comprise casing and be plugged in casing show card, GSM remote transmission card, communication unit card and tripping alarm card, are welded with respectively corresponding modular unit circuit on each card; Wherein GSM remote transmission module also connects the handheld terminal of binding with it by wireless network.
The output of power module is connected with central authorities' processing and memory cell, monitoring and protecting MIM message input module, supervisory keyboard input module, data LCD MODULE, GSM remote transmission module, communication unit and tripping alarm unit respectively, is used to it that power supply is provided; Central authorities process and the input of memory cell is connected with monitoring information protection input module and supervisory keyboard input module respectively; Central authorities process and the output of memory cell is connected with data liquid crystal display screen display unit, GSM remote transmission module and tripping alarm unit respectively; The output of data liquid crystal display screen display module connects the liquid crystal display screen being arranged on casing front panel; Central authorities process and memory cell also communicates to connect mutually with communication unit.
The input of monitoring and protecting MIM message input module connects respectively at voltage transformer, current transformer and each transducer by cable.Wherein voltage transformer is for acquisition system magnitude of voltage.Current transformer is for the each phase current values of acquisition system.Transducer mainly comprises and is arranged on low voltage distribution transformer platform district each needs gate inhibition's transducer, the water sensor etc. of monitoring site, gate inhibition's transducer can be arranged on Gui Men position, transformer platform area, be used for preventing the electricity filching behavior in transformer platform area, and detect transformer platform area cabinet door and whether open by mistake; Water sensor is arranged on inside, transformer platform area, whether has the faults such as water logging for detection of transformer platform area.
Supervisory keyboard input module is for setting and input the limit value of each protective number.
In central authorities' processing and memory cell, store every definite value of supervisory keyboard input module input; when central authorities process and memory cell while receiving the data-signal of the magnitude of voltage, current value and the each transducer that collect in monitoring and protecting MIM message input module; it is analyzed to judgement; and obtain a result, then send control command to correlation unit module.
Data liquid crystal display screen display module is for showing the information of monitoring and protecting MIM message input module collection and the result of calculation of central authorities' processing and memory cell, be convenient to staff each running status of monitoring in real time low voltage distribution transformer platform district.
GSM remote transmission module is the transmission for realizing signal, in conjunction with GSM SMS platform, adopts gsm wireless network to realize the transmission of signal as the carrier of transmission of information.The networking structure of GSM is flexible, can in transformer station, arrange, and in the time that detection transformer platform area protective number breaks down, alarm signal sends handheld terminal to by gsm wireless network, so that staff solves failure problems as early as possible.
Tripping alarm unit comprises tripping operation control module and warning indicating module; process and after memory cell processes and analyze each protective device information in central authorities; as unusual circumstance, according to fault level, select carry out trip signal or light alarm lamp.
In communication unit, be provided with S485 interface or RS232 interface, for being connected with transformer station's background monitoring center by telecommunication cable, carry out sharing of data.
The limit value of each monitoring variable of the utility model can arrange by supervisory keyboard input module, same, and protected mode also can set in advance by supervisory keyboard input module.The utility model is set to three kinds: the first defencive function is " locking ", and indication device does not possess this defencive function; The second defencive function is " warning ", and when indication device has this fault and occurs according to the definite value of this protection and delay judgement, the output of reporting to the police is closed, and indicator light is bright, and after all malfunctions disappear, the output of reporting to the police disconnects; The third defencive function is " tripping operation ", and when indication device has this fault and occurs according to the customization of this protection and delay judgement, alarm lamp is bright, and tripping operation outlet is simultaneously closed.
Liquid crystal display screen of the present utility model is arranged on the front panel of casing, the binding post of each modular unit is arranged on the rear board of casing, in the present embodiment, on the rear board of casing, be provided with altogether two rows terminal board, on two rows terminal board, be respectively arranged with 24 binding posts, the wiring state of each terminal as shown in Figure 2.
24 binding posts are drawn together in upper terminal package, and the wiring state of each binding post is as follows: 1st～No. 4 terminals of upper terminal row are voltage sample end, can directly be connected and carry out voltage sample with the threephase potential transformer of distribution transformer low-pressure side; 6th～No. 13 terminals of upper terminal row are current sample, access respectively distribution transformer low-pressure side three-phase CT and zero line CT output; 16th～No. 22 terminals of upper terminal row are external communication terminal, can select RS485 interface or RS232 interface, mutually communicate to connect with communication unit; The output interface that No. 23 of upper terminal row and No. 24 terminals are 12V power supply.
Lower terminal row also comprises 24 binding posts, the wiring state of each binding post is as follows: it is 220V that 2nd～No. 5 terminals of lower terminal row are set to switching value input stop voltage, input switch amount can be set to normal make war input or the input of normally closed point, as select input normal battle, normality is off-state, and closure is effective status, as selects normally closed some input, normality is closure state, is broken as effective status; 6th～No. 9 terminals of lower terminal row access respectively external signal pick-up transducers, comprise gate inhibition's transducer, water sensor etc.; 11st～No. 18 terminals of lower terminal row connect control output end circuit, wherein, the 15th, No. 16 terminals of lower terminal row connect tripping operation control circuit, and No. 15 terminal connects contactor coil, have electronic trip avoidance function, No. 16 terminal connects any one in A, B, C three-phase; The 17th, No. 18 connecting terminals control circuits taking alarm of lower terminal row, No. 17 terminal connects any one in A, B, C three-phase, No. 18 connecting terminals warning lamp of being informed of a case.
After device starts; supervisory keyboard input module can device be set to taking 3 seconds as the circulate service data of display system of cycle; require parameters according to low voltage electric network security of operation, action threshold settings that can each defencive function is for as follows: overvoltage thresholding is set to 260V, under voltage thresholding and is set to 160V, voltage difference thresholding and is set to 30V, overload thresholding and is set to that 200A, leakage current thresholding are set to 10A, oil temperature thresholding is set to 80 DEG C.The upper limit of each shutter limit value is set as follows: overvoltage thresholding is that 260V, under voltage thresholding are that 220V, voltage difference thresholding are that 60V, overload thresholding are that 5000A, leakage current thresholding are that 1000A, oil temperature thresholding are 200 DEG C.
Whether whether the utility model can be realized existing the cabinet door of electricity filching behavior, transformer platform area to open by mistake in transformer platform area neutral line break, transformer platform area overcurrent, transformer platform area overvoltage, transformer platform area voltage three-phase imbalance, transformer platform area under-voltage, transformer overload, transformer platform area oil temperature, transformer platform area and the whether protection of water logging etc. of transformer platform area according to predefined parameter request.
Claims (1)
1. low voltage distribution transformer platform district comprehensive protector, it is characterized in that: comprise casing and be plugged on power insert plate, central authorities' processing and memory card plate, monitoring and protecting input information card, supervisory keyboard input card, data liquid crystal display screen demonstration card, GSM remote transmission card, communication unit card and the tripping alarm card in casing, on each card, be welded with respectively corresponding modular unit circuit; Wherein: power module is connected with central authorities' processing and memory cell, monitoring and protecting MIM message input module, supervisory keyboard input module, data liquid crystal display screen display module, GSM remote transmission module, communication unit and tripping alarm unit respectively, the input of central authorities' processing and memory cell is connected with monitoring information protection input module and supervisory keyboard input module respectively; Central authorities process and the output of memory cell is connected with data liquid crystal display screen display module, GSM remote transmission module and tripping alarm unit respectively; Central authorities process and memory cell also intercoms mutually with communication unit; The output of described data liquid crystal display screen display module connects the liquid crystal display screen being arranged on casing front panel, and GSM remote transmission module also connects the handheld terminal of binding with it by wireless network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320776868.1U CN203800567U (en) | 2013-12-02 | 2013-12-02 | Integrated protection apparatus for low-voltage distribution transformer area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320776868.1U CN203800567U (en) | 2013-12-02 | 2013-12-02 | Integrated protection apparatus for low-voltage distribution transformer area |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203800567U true CN203800567U (en) | 2014-08-27 |
Family
ID=51382756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320776868.1U Expired - Fee Related CN203800567U (en) | 2013-12-02 | 2013-12-02 | Integrated protection apparatus for low-voltage distribution transformer area |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203800567U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132473A (en) * | 2017-05-17 | 2017-09-05 | 肇庆三向教学仪器制造有限公司 | A kind of low-voltage intelligent monitoring terminal |
| CN108879967A (en) * | 2018-09-19 | 2018-11-23 | 广东电网有限责任公司 | A kind of power distribution station outlet branch line switch trip warning system |
-
2013
- 2013-12-02 CN CN201320776868.1U patent/CN203800567U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107132473A (en) * | 2017-05-17 | 2017-09-05 | 肇庆三向教学仪器制造有限公司 | A kind of low-voltage intelligent monitoring terminal |
| CN108879967A (en) * | 2018-09-19 | 2018-11-23 | 广东电网有限责任公司 | A kind of power distribution station outlet branch line switch trip warning system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107508264B (en) | A kind of site route protection does not have a power failure drive method | |
| CN203553628U (en) | Intelligent power box for base station | |
| CN201528224U (en) | High-tension line electrified detecting and locking device | |
| CN109687590A (en) | A kind of be classified stops send a telegram in reply report method, system | |
| CN104113047A (en) | Electricity utilization protection method and electricity utilization protection device based on comprehensive integration of public transformers | |
| CN203800567U (en) | Integrated protection apparatus for low-voltage distribution transformer area | |
| CN203339659U (en) | Single-phase electric leakage protection and power supply automation recovery device | |
| CN201126963Y (en) | Communication lightning protection box | |
| CN105024341B (en) | With off zero and open-phase protection breaker and open-circuit system | |
| CN202748425U (en) | Residual current protection uninterrupted testing device | |
| CN105186490B (en) | Breaker and open-circuit system with zero curve and phase line burn out detection function | |
| CN205177729U (en) | Multifunctional circuit breakers | |
| CN208753985U (en) | Intelligent lightning protection device and the lightning protection box for protecting three-phase circuit | |
| CN203103948U (en) | Controller for arc extinction and over-voltage protection device | |
| CN204992527U (en) | Circuit breaker and system that opens circuit with disconnected zero -sum open -phase protection | |
| CN204992575U (en) | Take zero line and phase line broken string to detect circuit breaker of function and open circuit system | |
| CN105244845A (en) | Transformer intelligent overload combined cut-off apparatus | |
| CN105811368B (en) | Adaptivity zero line break protection device and system | |
| CN104020393A (en) | Single-phase grounding short-circuit fault positioning method of electrical network | |
| CN201682328U (en) | Intelligent control terminal of leakage protector remote control system | |
| CN104749486A (en) | Residual current protector based IT system single-phase fault positioning method | |
| CN205178521U (en) | Three -phase balance high pressure metering device | |
| CN103197127A (en) | Grounding step voltage detecting method and grounding step voltage detecting device of high-voltage equipment of switch gear room of converting station | |
| CN204669079U (en) | A kind of safety control for resident's distribution | |
| CN103066579A (en) | Grid fault measuring and control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20151202 |
|
| EXPY | Termination of patent right or utility model |