CN203164278U - Transformer substation switch chamber high-voltage equipment grounding step voltage detecting device - Google Patents
Transformer substation switch chamber high-voltage equipment grounding step voltage detecting device Download PDFInfo
- Publication number
- CN203164278U CN203164278U CN 201320177502 CN201320177502U CN203164278U CN 203164278 U CN203164278 U CN 203164278U CN 201320177502 CN201320177502 CN 201320177502 CN 201320177502 U CN201320177502 U CN 201320177502U CN 203164278 U CN203164278 U CN 203164278U
- Authority
- CN
- China
- Prior art keywords
- voltage
- transformer substation
- earthing pole
- switch chamber
- display module
- 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
- 230000000295 complement effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 206010014357 Electric shock Diseases 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 4
- 230000006378 damage Effects 0.000 description 4
- 208000014674 injury Diseases 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to a transformer substation switch chamber high-voltage equipment grounding step voltage detecting device and belongs to the technical field of power supply detection. The transformer substation switch chamber high-voltage equipment grounding step voltage detecting device is characterized in that output ends of a grounding pole A (2) and a grounding pole B (3) are connected with each other through an input end of an over-voltage relay; an indicating lamp (5) is arranged the each over-voltage relay; a normally-open contact of the over-voltage relay (1) is connected with a buzzer (4); the distance from the grounding pole A to the grounding pole B is 0.8 meter; the action value of the over-voltage relay is 12V; the transformer substation switch chamber high-voltage equipment grounding step voltage detecting device is further provided with a multi-path voltage display module (6); more than one test unit exists; and a plurality of test units are connected with the multi-path voltage display module. The transformer substation switch chamber high-voltage equipment grounding step voltage detecting device of the utility model has the advantages of simple structure and low cost. With the transformer substation switch chamber high-voltage equipment grounding step voltage detecting device adopted, step voltage can be detected, and such that, whether the high-voltage equipment of a 10kV switch chamber of a transformer substation is grounded or not can be judged, and therefore, electric shock-caused personal hurt which occurs when the high-voltage equipment of the 10kV switch chamber is grounded can be effectively prevented.
Description
Technical field
The utility model relates to a kind of transformer substation switch chamber high-tension apparatus ground connection step voltage pick-up unit, belongs to power supply detection technique field.
Background technology
Transformer substation switch chamber high-tension apparatus is isolated neutral system, for example: transformer station's 10kV electric pressure is isolated neutral system, when 10kV system generation single-phase earthing, the 10kV isolating switch does not trip, if earth point occurs in transformer station 10kV switch gear room, when the substation operation personnel enter the 10kV switch gear room, during near 10kV equipment ground point, just step voltage may be produced, when perhaps contacting the 10kV device housings, just the electric shock personal injury may be caused." electric power safety working regulation " (power transformation part) clearly stipulate, when ground connection takes place in high-tension apparatus, indoor must not be near in 4 meters of the trouble spots.How accurately, detect step voltage easily, prevent the person injury of getting an electric shock, be the technical matters that this area needs to be resolved hurrily.
The utility model content
The utility model purpose provides a kind of transformer substation switch chamber high-tension apparatus ground connection step voltage pick-up unit, by detecting step voltage, the high-tension apparatus ground connection that the transformer substation switch chamber is taken place gives warning in advance, prevent that the substation operation personnel from entering the switch gear room under unwitting situation, prevent person electric shock injury, solve the problems referred to above that exist in the background technology.
The technical solution of the utility model is: a kind of transformer substation switch chamber high-tension apparatus ground connection step voltage pick-up unit, comprise over voltage relay, earthing pole one, earthing pole two, hummer, pilot lamp, normally opened contact, plurality of voltages display module, the output terminal of described earthing pole one and earthing pole two and the input end of over voltage relay are connected to each other, pilot lamp is arranged on the over voltage relay, the normally opened contact of over voltage relay is connected with hummer, the distance of earthing pole one and earthing pole two is 0.8 meter, the working value 12V of over voltage relay; Also be provided with the plurality of voltages display module, described over voltage relay, earthing pole one, earthing pole two, hummer, pilot lamp and normally opened contact are formed a test cell, the quantity of test cell is more than one, and a plurality of test cells are connected with the plurality of voltages display module respectively.
Also be provided with main frame and function key, over voltage relay, pilot lamp and plurality of voltages display module are arranged in the main frame, function key is arranged on the main frame surface, function key and plurality of voltages display module are complementary, and are used for each test cell voltage signal of checking, showing that the plurality of voltages display module is handled.
Adopt above-mentioned ground connection step voltage pick-up unit, it is outdoor that main frame is arranged on transformer substation switch, earthing pole one and earthing pole two are arranged in by the indoor high-tension apparatus of transformer substation switch, the distance of earthing pole one and earthing pole two is 0.8 meter, earthing pole one is vertical buried reinforcing bar with earthing pole two, and buried degree of depth is 0.5 meter; Behind the transformer substation switch chamber high-tension apparatus generation single-phase earthing, produce voltage difference at earthing pole one and earthing pole two, when voltage difference reaches the working value 12V of over voltage relay, the normally opened contact closure of over voltage relay, connect hummer and send alarm sound, pilot lamp on the over voltage relay is bright simultaneously, reports to the police, and the plurality of voltages display module shows the step voltage value; The many of a plurality of test cells are 4 meters to distance between the earthing pole; The plurality of voltages display module shows the step voltage value, a plurality of over voltage relays in parallel any one when reaching working value, the pilot lamp on the corresponding over voltage relay all can be lighted, hummer can give the alarm simultaneously; Show that by pilot lamp and voltage the high-tension apparatus which winding earth polar is situation can judge near takes place by ground connection.
Described high-tension apparatus is high-tension switch cabinet, arranged in the switch gear room, the many of a plurality of test cells arrange along the high-tension switch cabinet orientation at interval to earthing pole, the high-tension switch cabinet number increases, just increase the logarithm of earthing pole, guarantee that distance is less than 4 meters between each high-tension switch cabinet and the nearest earthing pole.
The beneficial effects of the utility model are: simple in structure, cost is low, judge whether high-tension apparatus ground connection of transformer station 10kV switch gear room by detecting step voltage, prevent from effectively that the substation operation personnel from having in the 10kV switch gear room under the situation of high-tension apparatus ground connection to cause the electric shock personal injury.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model;
Fig. 2 is host structure chart of the present utility model;
Among the figure: over voltage relay 1, earthing pole 1, earthing pole 23, hummer 4, pilot lamp 5, plurality of voltages display module 6, normally opened contact 7, function key 8.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail by embodiment.
Present embodiment is used for 10kV transformer substation switch chamber.
A kind of transformer substation switch chamber high-tension apparatus ground connection step voltage pick-up unit, comprise over voltage relay 1, earthing pole 1, earthing pole 23, hummer 4, pilot lamp 5, normally opened contact 7 and plurality of voltages display module 6, the output terminal of described earthing pole one and earthing pole two and the input end of over voltage relay are connected to each other, pilot lamp is arranged on the over voltage relay, the normally opened contact of over voltage relay is connected with hummer, the distance of earthing pole one and earthing pole two is 0.8 meter, the working value 12V of over voltage relay; Also be provided with the plurality of voltages display module, described over voltage relay, earthing pole one, earthing pole two, hummer, pilot lamp and normally opened contact are formed a test cell, the quantity of test cell is more than one, and a plurality of test cells are connected with the plurality of voltages display module respectively.
Also be provided with main frame and function key, over voltage relay, pilot lamp and plurality of voltages display module are arranged in the main frame, function key is arranged on the main frame surface, function key and plurality of voltages display module are complementary, and are used for each test cell voltage signal of checking, showing that the plurality of voltages display module is handled.
Adopt above-mentioned ground connection step voltage pick-up unit, it is outdoor that main frame is arranged on transformer substation switch, earthing pole one and earthing pole two are arranged in by the indoor high-tension apparatus of transformer substation switch, the distance of earthing pole one and earthing pole two is 0.8 meter, earthing pole one is vertical buried reinforcing bar with earthing pole two, and buried degree of depth is 0.5 meter; Behind the transformer substation switch chamber high-tension apparatus generation single-phase earthing, produce voltage difference at earthing pole one and earthing pole two, when voltage difference reaches the working value 12V of over voltage relay, the normally opened contact closure of over voltage relay, connect hummer and send alarm sound, pilot lamp on the over voltage relay is bright simultaneously, reports to the police, and the plurality of voltages display module shows the step voltage value; The many of a plurality of test cells are 4 meters to distance between the earthing pole; The plurality of voltages display module shows the step voltage value, a plurality of over voltage relays in parallel any one when reaching working value, the pilot lamp on the corresponding over voltage relay all can be lighted, hummer can give the alarm simultaneously; Show that by pilot lamp and voltage the high-tension apparatus which winding earth polar is situation can judge near takes place by ground connection.
Described high-tension apparatus is high-tension switch cabinet, arranged in the switch gear room, the many of a plurality of test cells arrange along the high-tension switch cabinet orientation at interval to earthing pole, the high-tension switch cabinet number increases, just increase the logarithm of earthing pole, guarantee that distance is less than 4 meters between each high-tension switch cabinet and the nearest earthing pole.
Claims (2)
1. transformer substation switch chamber high-tension apparatus ground connection step voltage pick-up unit, it is characterized in that: comprise over voltage relay (1), earthing pole one (2), earthing pole two (3), hummer (4), pilot lamp (5), normally opened contact (7) and plurality of voltages display module (6), the output terminal of described earthing pole one and earthing pole two and the input end of over voltage relay are connected to each other, pilot lamp is arranged on the over voltage relay, the normally opened contact of over voltage relay is connected with hummer, the distance of earthing pole one and earthing pole two is 0.8 meter, the working value 12V of over voltage relay; Also be provided with the plurality of voltages display module, described over voltage relay, earthing pole one, earthing pole two, hummer, pilot lamp and normally opened contact are formed a test cell, the quantity of test cell is more than one, and a plurality of test cells are connected with the plurality of voltages display module respectively.
2. a kind of transformer substation switch according to claim 1 chamber high-tension apparatus ground connection step voltage pick-up unit, it is characterized in that: also be provided with main frame and function key, over voltage relay, pilot lamp and plurality of voltages display module are arranged in the main frame, function key is arranged on the main frame surface, and function key and plurality of voltages display module are complementary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320177502 CN203164278U (en) | 2013-04-10 | 2013-04-10 | Transformer substation switch chamber high-voltage equipment grounding step voltage detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320177502 CN203164278U (en) | 2013-04-10 | 2013-04-10 | Transformer substation switch chamber high-voltage equipment grounding step voltage detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203164278U true CN203164278U (en) | 2013-08-28 |
Family
ID=49025455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320177502 Expired - Fee Related CN203164278U (en) | 2013-04-10 | 2013-04-10 | Transformer substation switch chamber high-voltage equipment grounding step voltage detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203164278U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197127A (en) * | 2013-04-10 | 2013-07-10 | 国家电网公司 | Grounding step voltage detecting method and grounding step voltage detecting device of high-voltage equipment of switch gear room of converting station |
| CN105069968A (en) * | 2015-07-28 | 2015-11-18 | 国网上海市电力公司 | Electricity-approaching alarm drum |
-
2013
- 2013-04-10 CN CN 201320177502 patent/CN203164278U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103197127A (en) * | 2013-04-10 | 2013-07-10 | 国家电网公司 | Grounding step voltage detecting method and grounding step voltage detecting device of high-voltage equipment of switch gear room of converting station |
| CN105069968A (en) * | 2015-07-28 | 2015-11-18 | 国网上海市电力公司 | Electricity-approaching alarm drum |
| CN105069968B (en) * | 2015-07-28 | 2017-12-19 | 国网上海市电力公司 | A kind of nearly electric alarm cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203773010U (en) | Partial discharge on-line monitoring instrument based on switch cabinet charge indicator | |
| CN104090230A (en) | Breaker safe operation real-time analysis early warning system | |
| CN203164278U (en) | Transformer substation switch chamber high-voltage equipment grounding step voltage detecting 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 | |
| CN203237059U (en) | Static/dynamic online insulation monitoring device for high voltage power supply system of electric locomotive | |
| CN206161764U (en) | Electric line earth leakage fault detection system based on signal trigger | |
| CN208753985U (en) | Intelligent lightning protection device and the lightning protection box for protecting three-phase circuit | |
| CN104749486A (en) | Residual current protector based IT system single-phase fault positioning method | |
| CN202583391U (en) | Transmission line grounding fault detection instrument | |
| CN203350385U (en) | Direct current system parasitic circuit on-line detection apparatus | |
| CN202563012U (en) | Large-scale power station grounding net impedance parameter measuring device | |
| CN202815071U (en) | High-voltage live detection indication system | |
| CN202050230U (en) | Surge protector with monitoring function | |
| CN206442111U (en) | A kind of intelligent lightning protection device | |
| CN202050231U (en) | Built-in detecting device of surge protector | |
| CN204732867U (en) | A kind of intelligent power lightning protection and monitoring device | |
| CN102969788A (en) | Passive wireless transmission system | |
| CN204031459U (en) | Position information transmitter and system | |
| CN204925303U (en) | Experimental place running ground of high -voltage electrical reports an emergency and asks for help or increased vigilance protection device | |
| CN215180525U (en) | High-precision safety electricity utilization online monitoring and early warning system | |
| CN202383792U (en) | Electrical fire monitoring detection system | |
| CN202720279U (en) | Wireless digital electric field intensity monitoring sensor | |
| CN203352018U (en) | Convenient wiring and removing device for buried transformer substation | |
| CN202094622U (en) | Surge protector with back-up protection module | |
| CN201918716U (en) | Relaying protection screen |
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: 20130828 Termination date: 20190410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |