CN204166081U - Straight-flow system insulating ground warning device - Google Patents
Straight-flow system insulating ground warning device Download PDFInfo
- Publication number
- CN204166081U CN204166081U CN201420623475.1U CN201420623475U CN204166081U CN 204166081 U CN204166081 U CN 204166081U CN 201420623475 U CN201420623475 U CN 201420623475U CN 204166081 U CN204166081 U CN 204166081U
- Authority
- CN
- China
- Prior art keywords
- module
- straight
- power supply
- data processing
- power transfer
- 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.)
- Active
Links
Landscapes
- Emergency Alarm Devices (AREA)
Abstract
The utility model relates to technical field of power systems, be specifically related to a kind of straight-flow system insulating ground warning device, comprise housing, housing is arranged guide rail bayonet socket, leakage current acquisition module is set in housing, data processing module, power transfer module and standby power supply module, surface of shell embedding operation panel module, guidance panel module comprises threshold value by-pass cock, standby power supply fling-cut switch, reset key, alarm and pilot lamp, leakage current acquisition module is connected with data processing module respectively with each element of guidance panel module, power transfer module input end connects external power source module, power transfer module output terminal connection data processing module, standby power supply module is by standby power supply fling-cut switch connection data processing module.The utility model structure is simple, and easy to use, detecting reliability is high, stability is strong, security is good, auxiliary existing insulating monitoring equipment, correctly, promptly localizing faults place.
Description
Technical field
The utility model relates to technical field of power systems, is specifically related to a kind of straight-flow system insulating ground warning device.
Background technology
DC power system is for the automation equipments such as the protection in transformer station, monitoring, supervision, record provide the multiple-limb network of working power.Straight-flow system adopts the earth-free mode of both positive and negative polarity to run, and can not run by influential system, but can cause direct-current short circuit accident when ground connection also occurs in an other pole during pole ground connection.Therefore, when straight-flow system occurs that insulation reduces, must get rid of immediately, process in time, in order to avoid lead to serious power system accident.
Nowadays, insulation monitoring and warning device generally adopts the method that bus insulation is monitored and Branch-circuit check combines.When there being earth fault to occur, insulation monitoring and warning device needs judgement to be that distribution bus there occurs earth fault or fault has appearred in which bar feed leg.But because straight-flow system feed leg is numerous, distribution compares dispersion, and insulation monitoring and warning device is difficult to all branch roads all to monitor, hinder to the position of fault correct, locate rapidly.
Utility model content
For solving the deficiency in above-mentioned technology, the purpose of this utility model is: provide a kind of straight-flow system insulating ground warning device, reliability is high, stability is strong, security is good, auxiliary existing insulating monitoring equipment, correctly, promptly localizing faults place.
For solving its technical matters, technical solution adopted in the utility model is:
Described straight-flow system insulating ground warning device, comprise housing, housing is arranged guide rail buckle, leakage current acquisition module is set in housing, data processing module, power transfer module and standby power supply module, surface of shell embedding operation panel module, guidance panel module comprises threshold value by-pass cock, standby power supply fling-cut switch, reset key, alarm and pilot lamp, leakage current acquisition module is connected with data processing module respectively with each element of guidance panel module, power transfer module input end connects external power source module, power transfer module output terminal connection data processing module, standby power supply module is by standby power supply fling-cut switch connection data processing module.
The utility model is fixed on the standard rail in straight-flow system rack by guide rail buckle, open external power source module and standby power supply fling-cut switch, pilot lamp is bright, indication equipment enters normal operating condition, when there is leakage current in DC power system feeder line branch road, leakage current acquisition module gathers leakage current, leakage current alarm threshold value is realized by threshold value by-pass cock, when collecting leakage current value and being greater than alarm threshold value, start alarm sounds, pilot lamp starts flicker simultaneously, send leakage-current alarm, be convenient to site operation personnel and lock abort situation rapidly and accurately, after the maintenance of electric leakage position, press reset key, equipment reenters normal operating condition, if equipment running process peripheral power module cannot normal power supply, then automatically start standby power supply module to power, guarantee equipment normally works, this kind of situation only just can realize when standby power supply fling-cut switch is closed, avoid causing equipment to store, reserve battery module electricity waste in transportation.
The leakage current acquisition module related in such scheme adopts existing leakage current Acquisition Circuit in prior art, this circuit carries out being connected with the power end of data processing module, earth terminal and signal receiving end respectively, belong to general knowledge as well known to those skilled in the art, do not repeat them here.
Wherein, preferred version is:
Described threshold value by-pass cock adopts 16 dial switchs, the adjustment to alarm threshold height is realized by the gear of 16 dial switchs on adjustment operation panel, standby power supply fling-cut switch and reset key are set to slide switch and touch-switch respectively, and guidance panel interface is clean and tidy, easy to operate.
Described data processing module connects watchdog circuit, occurs crashing, ensure the normal operation of equipment when meeting with the situation such as strong jamming, power supply shakiness to prevent data processing module.
Described data processing module adopts 32 ARM chips, such as 32 bit CPUs of ARM company M0 kernel, this family chip inside is integrated with the AD acquisition function of 12, the analog quantity of leakage current can be converted to digital quantity, compare with the alarm threshold of setting again, judge whether to perform the operations such as alarm, simultaneously, this chip is also responsible for the work such as parameter storage, logic control, the computer program relied in this chip operation process belongs to technology as well known to those skilled in the art, does not need to pay any creative work.
Described power transfer module is that 5V turns 3.3V power transfer module, external power source module comprises 220V and turns 5V power transfer module, 220V turns 5V power transfer module input end and connects civil power, 220V turns 5V power transfer module output terminal connection 5V and turns 3.3V power transfer module input end, for meeting equipment work requirements, need first civil power to be converted to power supply needed for equipment by power transfer module.
Described power transfer module output terminal and standby power supply module, by photo-coupler connection data processing module, are isolated by photo-coupler, ensure the normal operating conditions of data processing module.
Described power transfer module output terminal connects photo-coupler by electric source filter circuit, and electric source filter circuit carries out filtering to the output voltage of power transfer module, ensures as equipment provides effective, stable supply voltage.
Described standby power supply module adopts lithium battery, and lithium battery power supply stable performance, long service life, generally, the lithium battery of employing can meet detected state 3 years ' operation, and alarm status runs 2 months.
Described guide rail buckle comprises the groove I that on housing, corresponding straight-flow system cabinet guide rail is arranged, groove I side is provided with fixed dam, groove I opposite side arranges groove II, in groove II, shifting board is set, shifting board length is greater than groove II length, shifting board is flexibly connected by torsion spring with housing, time fixing, first shifting board is opened, placed by housing on the guide rail in straight-flow system rack, then releasing activity baffle plate, shifting board resets under the effect of torsion spring, housing is stuck on guide rail, prevents from coming off.
Compared with prior art, the utility model has following beneficial effect:
The utility model structure is simple, and easy to use, detecting reliability is high, stability is strong, security is good, auxiliary existing insulating monitoring equipment, correctly, promptly localizing faults place.The utility model is fixed on the standard rail in straight-flow system rack by guide rail buckle, by leakage current acquisition module, leakage current is gathered, leakage current alarm threshold value is realized by threshold value by-pass cock, when collecting leakage current value and being greater than alarm threshold value, start alarm sounds, pilot lamp starts flicker simultaneously, send leakage-current alarm, be convenient to site operation personnel and lock abort situation rapidly and accurately, after the maintenance of electric leakage position, press reset key, equipment reenters normal operating condition, if equipment running process peripheral power module cannot normal power supply, then automatically start standby power supply module to power, prevent device reset, this kind of situation only just can realize when standby power supply fling-cut switch is closed, avoid causing equipment to store, reserve battery module electricity waste in transportation.
Accompanying drawing explanation
Fig. 1 the utility model internal circuit block diagram.
Fig. 2 the utility model shell structure schematic diagram.
Fig. 3 guide rail buckle and guide rail annexation schematic diagram.
In figure: 1, housing; 2, guide rail; 3, threshold value by-pass cock; 4, standby power supply fling-cut switch; 5, reset key; 6, alarm; 7, pilot lamp; 8, shifting board.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described further:
Embodiment 1:
As Fig. 1-2 shows, straight-flow system insulating ground warning device described in the utility model, comprise housing 1, housing 1 is arranged guide rail buckle, leakage current acquisition module is set in housing 1, data processing module, power transfer module and standby power supply module, surface of shell embedding operation panel module, guidance panel module comprises threshold value by-pass cock 3, standby power supply fling-cut switch 4, reset key 5, alarm 6 and pilot lamp 7, leakage current acquisition module is connected with data processing module respectively with each element of guidance panel module, power transfer module input end connects external power source module, power transfer module output terminal connection data processing module, standby power supply module is by standby power supply fling-cut switch 4 connection data processing module.
Wherein, threshold value by-pass cock 3 adopts 16 dial switchs, the adjustment to alarm threshold height is realized by the gear of 16 dial switchs on adjustment operation panel, standby power supply fling-cut switch 4 and reset key 5 are set to slide switch and touch-switch respectively, guidance panel interface is clean and tidy, easy to operate; Data processing module connects watchdog circuit, occurs crashing, ensure the normal operation of equipment when meeting with the situation such as strong jamming, power supply shakiness to prevent data processing module; Data processing module adopts 32 ARM chips, such as 32 bit CPUs of ARM company M0 kernel, this family chip inside is integrated with the AD acquisition function of 12, the analog quantity of leakage current can be converted to digital quantity, compare with the alarm threshold of setting again, judge whether to perform the operations such as alarm, simultaneously, this chip is also responsible for the work such as parameter storage, logic control, the computer program relied in this chip operation process belongs to technology as well known to those skilled in the art, does not need to pay any creative work; Power transfer module is that 5V turns 3.3V power transfer module, external power source module comprises 220V and turns 5V power transfer module, 220V turns 5V power transfer module input end and connects civil power, 220V turns 5V power transfer module output terminal connection 5V and turns 3.3V power transfer module input end, for meeting equipment work requirements, need first civil power to be converted to power supply needed for equipment by power transfer module; Power transfer module output terminal and standby power supply module, by photo-coupler connection data processing module, are isolated by photo-coupler, ensure the normal operating conditions of data processing module; Power transfer module output terminal connects photo-coupler by electric source filter circuit, and electric source filter circuit carries out filtering to the output voltage of power transfer module, ensures as equipment provides effective, stable supply voltage; Standby power supply module adopts lithium battery, lithium battery power supply stable performance, long service life, and generally, the lithium battery of employing can meet detected state 3 years ' operation, and alarm status runs 2 months; As shown in Figure 3, guide rail buckle comprises the groove I that on housing 1, corresponding straight-flow system cabinet guide rail 2 is arranged, groove I side is provided with fixed dam, groove I opposite side arranges groove II, shifting board 8 is set in groove II, shifting board 8 length is greater than groove II length, shifting board 8 is flexibly connected by torsion spring with housing 1, time fixing, first open shifting board 8, housing 1 is placed on the guide rail 2 in straight-flow system rack, then releasing activity baffle plate 8, shifting board 8 resets under the effect of torsion spring, is stuck on guide rail 2 by housing 1, prevents from coming off.
The utility model structure is simple, and easy to use, detecting reliability is high, stability is strong, security is good, auxiliary existing insulating monitoring equipment, correctly, promptly localizing faults place.The utility model is fixed on the standard rail 2 in straight-flow system rack by guide rail buckle, open external power source module and standby power supply fling-cut switch 4, pilot lamp 7 is bright, indication equipment enters normal operating condition, when there is leakage current in DC power system feeder line branch road, leakage current acquisition module gathers leakage current, leakage current alarm threshold value is realized by threshold value by-pass cock 3, when collecting leakage current value and being greater than alarm threshold value, start alarm 6 to sound, pilot lamp 7 starts flicker simultaneously, send leakage-current alarm, be convenient to site operation personnel and lock abort situation rapidly and accurately, after the maintenance of electric leakage position, press reset key 5, equipment reenters normal operating condition, if equipment running process peripheral power module cannot normal power supply, then automatically start standby power supply module to power, guarantee equipment normally works, this kind of situation only just can realize when standby power supply fling-cut switch 4 is closed, avoid causing equipment to store, reserve battery module electricity waste in transportation.
The leakage current acquisition module related in such scheme adopts existing leakage current Acquisition Circuit in prior art, this circuit carries out being connected with the power end of data processing module, earth terminal and signal receiving end respectively, belong to general knowledge as well known to those skilled in the art, do not repeat them here.
Embodiment 2:
The present embodiment structure is identical with embodiment 1, when equipment is in alarm status, pilot lamp periodically glimmers warning, and staff reads current leakage current value according to the flicker cycle of pilot lamp, such as, set two kinds of pilot lamp and light duration, 0.15 second corresponding leakage current 0.1 milliampere lighted by pilot lamp, and 0.3 second corresponding leakage current 0.5 milliampere lighted by pilot lamp, when pilot lamp periodically long bright 3 times, short bright 2 times, then current leakage current value is 3*0.5+2*0.1=1.7 milliampere.
Claims (9)
1. a straight-flow system insulating ground warning device, it is characterized in that, comprise housing (1), (1) arranges guide rail buckle to housing, housing arranges leakage current acquisition module in (1), data processing module, power transfer module and standby power supply module, the surperficial embedding operation panel module of housing (1), guidance panel module comprises threshold value by-pass cock (3), standby power supply fling-cut switch (4), reset key (5), alarm (6) and pilot lamp (7), leakage current acquisition module is connected with data processing module respectively with each element of guidance panel module, power transfer module input end connects external power source module, power transfer module output terminal connection data processing module, standby power supply module is by standby power supply fling-cut switch (4) connection data processing module.
2. straight-flow system insulating ground warning device according to claim 1, it is characterized in that, described threshold value by-pass cock (3) adopts 16 dial switchs, and standby power supply fling-cut switch (4) adopts slide switch, and reset key (5) adopts touch-switch.
3. straight-flow system insulating ground warning device according to claim 1, is characterized in that, described data processing module connects watchdog circuit.
4. the straight-flow system insulating ground warning device according to claim 1,2 or 3, is characterized in that, described data processing module adopts 32 ARM chips.
5. straight-flow system insulating ground warning device according to claim 1, it is characterized in that, described power transfer module is that 5V turns 3.3V power transfer module, external power source module comprises 220V and turns 5V power transfer module, 220V turns 5V power transfer module input end and connects civil power, and 220V turns 5V power transfer module output terminal connection 5V and turns 3.3V power transfer module input end.
6. straight-flow system insulating ground warning device according to claim 1, is characterized in that, described power transfer module output terminal and standby power supply module are by photo-coupler connection data processing module.
7. straight-flow system insulating ground warning device according to claim 1, is characterized in that, described power transfer module output terminal connects photo-coupler by electric source filter circuit.
8. the straight-flow system insulating ground warning device according to claim 1 or 6, is characterized in that, described standby power supply module adopts lithium battery.
9. straight-flow system insulating ground warning device according to claim 1, it is characterized in that, described guide rail buckle comprises the groove I that the upper corresponding straight-flow system cabinet guide rail (2) of housing (1) is arranged, groove I side is provided with fixed dam, groove I opposite side arranges groove II, shifting board (8) is set in groove II, shifting board (8) length is greater than groove II length, and shifting board (8) is flexibly connected by torsion spring with housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420623475.1U CN204166081U (en) | 2014-10-24 | 2014-10-24 | Straight-flow system insulating ground warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420623475.1U CN204166081U (en) | 2014-10-24 | 2014-10-24 | Straight-flow system insulating ground warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204166081U true CN204166081U (en) | 2015-02-18 |
Family
ID=52539758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420623475.1U Active CN204166081U (en) | 2014-10-24 | 2014-10-24 | Straight-flow system insulating ground warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204166081U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699927A (en) * | 2016-03-16 | 2016-06-22 | 国家电网公司 | DC system insulation monitor calibration device |
| CN106443293A (en) * | 2016-08-15 | 2017-02-22 | 国家电网公司 | Direct current ground fault online detection and alarm device |
| CN110060445A (en) * | 2019-05-20 | 2019-07-26 | 北京航天常兴科技发展股份有限公司 | Prevent the method and detector for electric fire protection, monitoring system of electric leakage false alarm |
-
2014
- 2014-10-24 CN CN201420623475.1U patent/CN204166081U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699927A (en) * | 2016-03-16 | 2016-06-22 | 国家电网公司 | DC system insulation monitor calibration device |
| CN106443293A (en) * | 2016-08-15 | 2017-02-22 | 国家电网公司 | Direct current ground fault online detection and alarm device |
| CN110060445A (en) * | 2019-05-20 | 2019-07-26 | 北京航天常兴科技发展股份有限公司 | Prevent the method and detector for electric fire protection, monitoring system of electric leakage false alarm |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201667535U (en) | Electric power system line protection observe and control apparatus | |
| CN203658520U (en) | Intelligent cable fault indicator | |
| CN102345473B (en) | Mine intrinsic safety type automatic drainage and measurement and control protection device | |
| CN101738565A (en) | Adaptive fault indicator | |
| CN102946149A (en) | Automatic monitoring terminal for distributed distribution network | |
| CN206164082U (en) | Ore deposit lost circulation electric protection device based on pour into signal method into | |
| CN204166081U (en) | Straight-flow system insulating ground warning device | |
| CN106443293A (en) | Direct current ground fault online detection and alarm device | |
| CN103915890A (en) | Direct-current power source rapid switching device and method | |
| CN206149022U (en) | Net feeder automation terminal is joined in marriage to distributing type | |
| CN201402962Y (en) | Electric fire detection control integrated system | |
| CN203086239U (en) | Distributed distribution network automatic monitoring terminal | |
| CN105305637B (en) | A kind of grid-connected warning system of distributed generation resource and its operation method | |
| CN104333112B (en) | A kind of RTC electric power controller and method | |
| CN204271609U (en) | 10kV intelligent subscriber boundary switch controller | |
| CN104090242B (en) | Intelligent integrated power supply insulation detection module | |
| CN206002627U (en) | A kind of DC ground fault on-line checking and alarm device | |
| CN201369085Y (en) | Electricity leakage fire disaster detection alarm control integration system | |
| CN105510841A (en) | System for online monitoring and managing electric quantity of underwater equipment power supply | |
| CN201359629Y (en) | Direct-current power supply grounding alarm device | |
| CN203445507U (en) | Brush generator set integrated intelligent control screen | |
| CN202887382U (en) | Automatic halt alarm device for oil well | |
| CN201319206Y (en) | Earth-leakage fire alarm protective system | |
| CN209215554U (en) | A kind of device for scurrying into monitoring function with accumulator monitoring and exchange | |
| CN109638771B (en) | Application circuit of acceleration sensor in conventional relay protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Ke Inventor after: Liu Guoyong Inventor after: Zhu Feng Inventor after: Zhang Wanzheng Inventor after: Xu Xuelai Inventor before: Xu Ke Inventor before: Liu Guoyong Inventor before: Zhu Feng Inventor before: Zhang Wanzheng Inventor before: Xu Xuelai |
|
| COR | Change of bibliographic data | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 255086 Room 405, Block E, Gaochuang Park, 135 Zhengdao Road, Zibo High-tech District, Shandong Province Patentee after: Zhiyang Innovation Technology Co., Ltd. Address before: 255086 Room 405, Block E, Gaochuang Park, 135 Zhengdao Road, Zibo High-tech District, Shandong Province Patentee before: SHANDONG ZHIYANG ELECTRIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |