CN202126474U - Short circuit grounding fault indicator - Google Patents
Short circuit grounding fault indicator Download PDFInfo
- Publication number
- CN202126474U CN202126474U CN2011201839186U CN201120183918U CN202126474U CN 202126474 U CN202126474 U CN 202126474U CN 2011201839186 U CN2011201839186 U CN 2011201839186U CN 201120183918 U CN201120183918 U CN 201120183918U CN 202126474 U CN202126474 U CN 202126474U
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- short circuit
- panel
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- Locating Faults (AREA)
Abstract
The utilty model relates to the field of a detecting device in a swtich cabinet of an electrical power system, in particular to a short circuit grounding fault indicator which simultaneously detects and displays two groups of outgoing line short circuit and grounding alarm signals in the existing panel with the unifed standard, thereby saving the space. The novel short circuit grounding fault indicator comrpises a machine shell 1, a panel 2, a power source 3 arranged in the machine shell 1 and a logic judgement and control circuit board 4, wherein indicator lamps 5 and a reset button 6 are arranged on the panel 2; an optical fiber receiving seat 9 and a ground signalling terminal strip 10 are arranged on the back surface of the machine shell 1; the optical fiber receiving seat 9 is connected with two sets of short-circuit sensors 11 respectively by optical fibers; the ground signalling terminal strip 10 is connected with two sets of groundinging sensors 12 respectively through lead wires; the number of indicator lamps is two rows; the logic judgement and control circuit board 4 consists of a microprocessor14, a signal acquiring module 15, a resetting module 13 and a driving module16; the microprocessor14 is connected with the resetting module 13, the driving module 16 and the signal acquiring module 15 respectively; and the driving module16 is connected with the two rows of indicator 5 and a 485 communication system 7 respectively. The product has strong practical applicabilty.
Description
Technical field
The utility model relates to the pick-up unit field in the electric system switch cubicle, relates in particular to a kind of short circuit earth-fault indicator.
Background technology
The short circuit earth-fault indicator that uses on the market now all is for the structural design of single group inlet wire and single outlet, and is as shown in Figure 1; Has only row's pilot lamp on the panel; And in the engineering practice, the circuit structure of a lot of single inlet wires (one group of A, B, C threephase cable) two outlets (two groups of A, B, C threephase cable) is arranged, original short circuit earth fault alarm; Can only satisfy the fault detect warning requirement of single group inlet wire and the outlet of single group; And to the back a kind of mode of connection, it can only detect wherein one group failure message, and another the group detect less than; Because the switch cubicle space is limit, simultaneously two independently short circuit earth-fault indicators are set in cabinet, will cause production cost to raise, the space is crowded, and economic benefit descends, the wasting of resources, result of use is undesirable.
The utility model content
The utility model is exactly deficiency and the shortcoming that exists to original short circuit earth fault alarm; Novel short circuit earth-fault indicator is provided; Two groups of short circuit ground alarms are integrated in the alarm, in the alarm panel of existing unified standard, simultaneously two groups of outlet short circuits and grounding alarm signal are detected in a panel and show; The new structure and the pattern that in a common meter housing, detect and show two groups of outgoing line circuit situation have simultaneously been started like this; Compare with original in a meter housing, only the detection, improved the function and the integrated level of product, practiced thrift limited space with the pattern that shows one group of outlet.Simultaneously two independently short circuit earth-fault indicators are set in cabinet to overcome in existing the production, cause production cost to raise, operation inconvenience, the space is crowded, and economic benefit descends, the wasting of resources, the unfavorable problem of result of use.
The purpose of the utility model is to realize through following technical scheme:
A kind of novel short circuit and earth-fault indicator; Include casing 1, panel 2, be installed on power supply 3 and logic determines and control circuit board 4 in the casing 1; Said power supply 3 connects logic determines and control circuit board 4, and said panel 2 is equipped with pilot lamp 5, SR 6, and optical fiber received block 9 and ground signalling terminal row 10 are equipped with in the back side of said casing 1; Said optical fiber received block 9 is connected with two cover short-circuit sensors 11 respectively through optical fiber; Ground signalling terminal row 10 links to each other with two cover ground connection sensors 12 respectively through lead, and said short-circuit sensor 11 is installed in respectively in the three-phase outlet, and said grounding sensor 12 is installed in respectively on the threephase cable bus; Said pilot lamp 5 is provided with two rows; Said logic determines and control circuit board 4 are made up of microprocessor 14, acquired signal module 15, reseting module 13 and driver module 16; Said reseting module 13 links to each other with SR 6; Said microprocessor 14 connects reseting module 13 and driver module 16 and acquired signal module 15 respectively; Acquired signal module 15 receives short-circuit sensor 11 with said two covers respectively and is connected with said two cover ground connection sensors 12 through said optical fiber received block 9 and ground signalling terminal row 10, and said driver module 16 links to each other with 485 communication systems 7 with two row's pilot lamp 5 respectively.
The utility model beneficial effect: simple in structure, save the space, easy to make, practical.In original meter housing, the detection of the short circuit earth fault of integrated two-way outlet has realized the special use to an inlet wire two outlet mode of connection short circuit grounding alarms.
Description of drawings
Fig. 1 is the anterior synoptic diagram of existing short circuit earth-fault indicator on the market.
Fig. 2 is the described short circuit earth-fault indicator of a utility model structural representation.
Fig. 3 is the described short circuit earth-fault indicator of a utility model casing rear structure synoptic diagram.
Fig. 4 is described logic determines of the utility model and control circuit board structural representation.
Among the figure:
1, casing, 2, panel, 3, power supply, 4, logic determines and control location-plate; 5, pilot lamp, 6, SR, 7,485 communication systems, 8, the thermometric fiber connector; 9, optical fiber received block, 10, the ground signalling terminal row, 11, short-circuit sensor, 12, grounding sensor; 13, reseting module, 14, microprocessor, 15, the acquired signal module, 16, driver module.
Embodiment
According to accompanying drawing and embodiment the utility model is done further explain below.
Shown in Fig. 2 to 3, novel short circuit and earth-fault indicator comprise casing 1, panel 2, are fixed in power supply 3 and logic determines and control circuit board 4 in the main case 1; Casing 1 an outer side offers panel 2, is fixed with a SR 6 and two row's pilot lamp 5 on the panel 2, and SR 6 is used for reseting module 13 is resetted, and two row's pilot lamp 5 show the failure condition of two groups of circuits respectively.Opposite side at casing 1 is equipped with thermometric fiber connector 8, optical fiber received block 9 and ground signalling terminal row 10, and optical fiber received block 9 connects two cover short-circuit sensors 11 respectively, and ground signalling terminal row 10 connects two cover ground connection sensors 12 respectively; Power supply 3 is connected power supply with logic determines and control circuit board 4.
As shown in Figure 4, logic determines and control circuit board 4 are made up of microprocessor 14, acquired signal module 15, reseting module 13 and driver module 16; Said reseting module 13 links to each other with SR 6; SR 6 is used for reseting module 13 is resetted; Acquired signal module 15 is connected with two cover short-circuit sensors 11 respectively with optical fiber through said optical fiber received block 9; Be used for gathering the short-circuit signal of two outlets; Acquired signal module 15 is connected with two cover ground connection sensors 12 respectively with lead through ground signalling terminal row 10 again simultaneously, is used for gathering the ground signalling on the cable bus, and acquired signal module 15 receives two cover short-circuit sensors 11 and two respectively and overlaps the signal that ground connection sensors 12 send; Reseting module 13 is used for pilot lamp 5 is returned to distribution line show state just often, and microprocessor 14 receives signal that acquired signal modules 15 and reseting module 13 send and sends instruction to driver module 16; Driver module 16 links to each other with two row's pilot lamp 5 and 485 communication systems 7 respectively, sends signal to it simultaneously according to failure condition.
The course of work is: wherein every cover short trouble sensor is provided with 3; Each phase that connects power circuit respectively, and these 3 short trouble sensors 11 all connect acquired signal module 15 through optical fiber is when wherein one when short trouble occurring mutually; Sensor 11 sends light signal; Acquired signal module 15 is sent the short trouble signal to microprocessor 14 after perceiving this signal through optical fiber, handles the back by microprocessor 14 and sends the instruction warning to driver module 16.
Every cover ground connection sensor 12 is set to 1, is nested with on the threephase cable bus, is connected with acquired signal module 15 through lead, and what this sensor 12 was exported is the ground current analog quantity, stores ground current fault setting valve in the acquired signal module 15 simultaneously; When earth fault took place, the increment that acquired signal module 15 detects analog quantity reached greater than preset setting valve, sends the earth fault signal towards microprocessor 14, sent instruction to driver module 16 after being handled by microprocessor 14 and reported to the police.
Claims (1)
1. short circuit earth-fault indicator; Include casing (1), panel (2), be installed on power supply (3) and logic determines and control circuit board (4) in the casing (1); Said power supply (3) connects logic determines and control circuit board (4); Said panel (2) is equipped with pilot lamp (5), SR (6); Optical fiber received block (9) and ground signalling terminal row (10) are equipped with in the back side of said casing (1), it is characterized in that: said optical fiber received block (9) is connected with two cover short-circuit sensors (11) respectively through optical fiber, and ground signalling terminal row (10) links to each other with two cover ground connection sensors (12) respectively through lead; Said short-circuit sensor (11) is installed in the three-phase outlet, and said grounding sensor (12) is installed on the threephase cable bus; Said pilot lamp (5) is provided with two rows; Said logic determines and control circuit board (4) are made up of microprocessor (14), acquired signal module (15), reseting module (13) and driver module (16); Said reseting module (13) links to each other with SR (6); Said microprocessor (14) connects reseting module (13) and driver module (16) and acquired signal module (15) respectively; Acquired signal module (15) receives short-circuit sensor (11) with said two covers respectively and is connected with said two cover ground connection sensors (12) through said optical fiber received block (9) and ground signalling terminal row (10), and said driver module (16) links to each other with 485 communication systems (7) with two row's pilot lamp (5) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201839186U CN202126474U (en) | 2011-06-02 | 2011-06-02 | Short circuit grounding fault indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201839186U CN202126474U (en) | 2011-06-02 | 2011-06-02 | Short circuit grounding fault indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202126474U true CN202126474U (en) | 2012-01-25 |
Family
ID=45489540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201839186U Expired - Fee Related CN202126474U (en) | 2011-06-02 | 2011-06-02 | Short circuit grounding fault indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202126474U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217657A (en) * | 2013-03-23 | 2013-07-24 | 国家电网公司 | Detection method of switch cabinet measuring and controlling device of converting station |
| CN103605043A (en) * | 2013-10-31 | 2014-02-26 | 国网宁夏电力公司盐池县供电公司 | Distribution-box fault indicator |
| CN104407274A (en) * | 2014-11-28 | 2015-03-11 | 国家电网公司 | On-line power distribution line monitoring acquisition terminal supporting automatic resetting |
| CN105954636A (en) * | 2016-04-21 | 2016-09-21 | 张顺 | Short circuit and ground fault indicator |
-
2011
- 2011-06-02 CN CN2011201839186U patent/CN202126474U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217657A (en) * | 2013-03-23 | 2013-07-24 | 国家电网公司 | Detection method of switch cabinet measuring and controlling device of converting station |
| CN103217657B (en) * | 2013-03-23 | 2015-06-10 | 国家电网公司 | Detection method of switch cabinet measuring and controlling device of converting station |
| CN103605043A (en) * | 2013-10-31 | 2014-02-26 | 国网宁夏电力公司盐池县供电公司 | Distribution-box fault indicator |
| CN104407274A (en) * | 2014-11-28 | 2015-03-11 | 国家电网公司 | On-line power distribution line monitoring acquisition terminal supporting automatic resetting |
| CN105954636A (en) * | 2016-04-21 | 2016-09-21 | 张顺 | Short circuit and ground fault indicator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20140602 |