CN201331563Y - DC600V online insulating detection device - Google Patents
DC600V online insulating detection device Download PDFInfo
- Publication number
- CN201331563Y CN201331563Y CN 200820183385 CN200820183385U CN201331563Y CN 201331563 Y CN201331563 Y CN 201331563Y CN 200820183385 CN200820183385 CN 200820183385 CN 200820183385 U CN200820183385 U CN 200820183385U CN 201331563 Y CN201331563 Y CN 201331563Y
- Authority
- CN
- China
- Prior art keywords
- dc600v
- control
- power supply
- electric leakage
- detection
- Prior art date
Links
- 238000009413 insulation Methods 0.000 claims description 33
- 238000010586 diagrams Methods 0.000 description 2
- 238000005516 engineering processes Methods 0.000 description 2
- 281999990635 Foundations companies 0.000 description 1
- 230000001070 adhesive Effects 0.000 description 1
- 239000000853 adhesives Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effects Effects 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 238000009666 routine test Methods 0.000 description 1
- 238000004642 transportation engineering Methods 0.000 description 1
Abstract
Description
Technical field
The utility model relates to a kind of leak current detection device, particularly a kind of pick-up unit that is applicable to railway DC600V power supply passenger vehicle power distribution cabinet power supply buses insulation leakagel volume leakage stream.
Background technology
Along with development of science and technology, the modern railways passenger vehicle mostly adopts the DC600V electric power system, adopt the DC600V electric power system to have many good qualities, it can realize the electric control system and the network monitoring system of robotization control easily, promote the technical merit of China's passenger vehicle electrical system and vehicle mounting, for new operation service on buses or trains system provides strong technical support, produce good economic benefit and social benefit, also laid firm foundations simultaneously, thereby the Electrical Safety problem of DC600V electric power system is particularly important with regard to what show for realization digitizing, networked transportation by railroad.
The utility model content
It is a kind of simple in structure that the purpose of this utility model is to provide, the online insulation detection control apparatus of the DC600V power supply buses leakage current that degree of accuracy is high.
The technical solution of the utility model is: the online insulation detection device of a kind of DC600V, and the online insulation detection device of described DC600V is provided with the insulation control device, earth detector, electric leakage alarm device, DC110V power supply; Wherein, the DC110V power supply is connected with the insulation control device, be its power supply, earth detector is arranged in the current supply circuit of the positive negative wire of DC600V power distribution cabinet, links to each other with the insulation control device, for it provides the leakage current signal, the insulation control device is provided with internal relay, its normally closed electric shock is connected with power supply control contactor KM1, KM2, and normally opened contact is connected with electric leakage alarm device, and moving contact and DC110V power supply join.
Preferably: described electric leakage alarm device is the electric leakage pilot lamp.
Preferably: the online insulation detection device of described DC600V also is provided with test circuit, and described test circuit comprises the DC110V power supply that is serially connected in the loop, testing button SB1, earth detector and test resistance R1.
Preferably: described earth detector is a current sensor.
The beneficial effects of the utility model are: the utility model is provided with earth detector, insulation control device and electric leakage alarm device, when leakage current surpasses the predetermined current value, the action of insulation control device relay contacts, the control electric leakage alarm device is reported to the police, the action of power supply control contactor, disconnect current supply circuit, not only simple in structure, and the degree of accuracy height.The utility model also is provided with test circuit in addition, and whether can operate as normal, ensured device security if being used to test this device.
Description of drawings
Fig. 1 is a principle of work block diagram of the present utility model
Fig. 2 is the schematic diagram of the utility model monitoring major loop and test circuit
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model:
The online insulation detection device of a kind of DC600V, the online insulation detection device of described DC600V is provided with the insulation control device, earth detector current sensor, electric leakage alarm device leakage-current alarm lamp, DC110V power supply; Wherein, the DC110V power supply is connected with the insulation control device, be its power supply, current sensor is arranged in the current supply circuit of the positive negative wire of DC600V power distribution cabinet, links to each other with the insulation control device, for it provides the leakage current signal, the insulation control device comprises the peripheral circuit and the internal relay of primary controller, primary controller, the normally closed electric shock of internal relay is connected with power supply control contactor KM1, KM2, and normally opened contact is connected with electric leakage alarm device, and moving contact and DC110V power supply join.The online insulation detection device of DC600V also comprises test circuit, described test circuit comprises the DC110V power supply that is serially connected in the loop, testing button SB1, current sensor and test resistance R1, test resistance the R1 size of measuring current as required match.
During work, current sensor is monitored the size of DC600V power supply buses insulation leakagel volume leakage stream constantly, if leakage current is during less than setting value, then on-line insulation monitoring device duty remains unchanged, the contact of internal relay is positioned at the normally closed contact place, thereby DC600V electric power system operate as normal; If the leakage current that monitors of current sensor is during more than or equal to setting value, the primary controller received signal of insulation control device also issues a signal to the inductive coil of internal relay, thereby internal relay moves, the contact is allocated to normally opened contact place and self-locking by normally closed contact, and at this moment, power supply control contactor KM1, KM2 disconnect, the DC600V electric power system quits work, and the electric leakage pilot lamp is bright, produces alerting signal, thereby safeguards.
In order to check the online insulation detection device of DC600V, guarantee that it can operate as normal, support equipment safety is answered this device of use test circuit routine test.Method of testing: disconnect the DC600V power supply, the leakage current alarming value is set at 150mA (or other setting values), match suitable test resistance R1, given DC110V power supply is pressed testing button SB1 again, and the electric leakage pilot lamp is bright, relay adhesive and self-locking.Release button SB1 re-powers pick-up unit, can prepare to test next time.
Test will be calculated according to the number of wire turns of passing sensor with power and the resistance of resistance R1.Select for use the power of resistance will leave surplus, prevent that resistance from burning out, and has an accident.For example: if select 0.75mm for use 2Lead, selecting R1 is 1W, 8K Ω, number of wire turns is 12 circles.The electric current that calculates after test circuit is connected is 12 circle * 110V ÷ 8K Ω ≈ 165mA.Resistance consumption power is (0.165 ÷ 12) 2* 8K Ω=1.51W＞1W, so resistance R 1 should be selected 2W for use, 8K Ω.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820183385 CN201331563Y (en) | 2008-12-12 | 2008-12-12 | DC600V online insulating detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820183385 CN201331563Y (en) | 2008-12-12 | 2008-12-12 | DC600V online insulating detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201331563Y true CN201331563Y (en) | 2009-10-21 |
Family
ID=41224947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820183385 CN201331563Y (en) | 2008-12-12 | 2008-12-12 | DC600V online insulating detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201331563Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565648A (en) * | 2012-02-17 | 2012-07-11 | 青岛四方车辆研究所有限公司 | DC600V main line on-line insulation monitoring device |
| CN102628915A (en) * | 2012-03-28 | 2012-08-08 | 中国海洋石油总公司 | Electrical submersible pump on-line insulation detection device |
| CN103399266A (en) * | 2013-08-16 | 2013-11-20 | 常熟市苏常工程质量检测有限公司 | Insulation performance testing equipment |
| CN103439627A (en) * | 2013-09-14 | 2013-12-11 | 株洲中车轨道交通装备有限公司 | Train power supply leakage current detecting system and method |
| WO2014032395A1 (en) * | 2012-08-27 | 2014-03-06 | 北京四方继保自动化股份有限公司 | Anti-interference switching value transmission circuit |
| CN106501658A (en) * | 2016-11-04 | 2017-03-15 | 国网山西省电力公司大同供电公司 | A kind of system for wire detection of electrical leakage |
| CN108023393A (en) * | 2017-11-16 | 2018-05-11 | 广新海事重工股份有限公司 | A kind of New Marine charging and conversion equipment |
| CN108828393A (en) * | 2018-09-17 | 2018-11-16 | 中车青岛四方车辆研究所有限公司 | DC110V on-line insulation monitoring system and method |
-
2008
- 2008-12-12 CN CN 200820183385 patent/CN201331563Y/en not_active IP Right Cessation
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565648A (en) * | 2012-02-17 | 2012-07-11 | 青岛四方车辆研究所有限公司 | DC600V main line on-line insulation monitoring device |
| CN102628915A (en) * | 2012-03-28 | 2012-08-08 | 中国海洋石油总公司 | Electrical submersible pump on-line insulation detection device |
| CN102628915B (en) * | 2012-03-28 | 2014-04-16 | 中国海洋石油总公司 | Electrical submersible pump on-line insulation detection device |
| GB2517368A (en) * | 2012-08-27 | 2015-02-18 | Beijing Sifang Automation Co | Anti-interference switching value transmission circuit |
| US9679726B2 (en) | 2012-08-27 | 2017-06-13 | Beijing Sifang Automation Co., Ltd | Anti-interference switch signal transmission circuit |
| WO2014032395A1 (en) * | 2012-08-27 | 2014-03-06 | 北京四方继保自动化股份有限公司 | Anti-interference switching value transmission circuit |
| GB2517368B (en) * | 2012-08-27 | 2020-06-17 | Beijing Sifang Automation Co | Anti-interference switch signal transmission circuit |
| CN103399266A (en) * | 2013-08-16 | 2013-11-20 | 常熟市苏常工程质量检测有限公司 | Insulation performance testing equipment |
| CN103439627A (en) * | 2013-09-14 | 2013-12-11 | 株洲中车轨道交通装备有限公司 | Train power supply leakage current detecting system and method |
| CN103439627B (en) * | 2013-09-14 | 2015-12-23 | 株洲中车轨道交通装备有限公司 | Train power supply leakage current test system and detection method |
| CN106501658A (en) * | 2016-11-04 | 2017-03-15 | 国网山西省电力公司大同供电公司 | A kind of system for wire detection of electrical leakage |
| CN106501658B (en) * | 2016-11-04 | 2019-03-29 | 国网山西省电力公司大同供电公司 | A kind of system for conducting wire detection of electrical leakage |
| CN108023393A (en) * | 2017-11-16 | 2018-05-11 | 广新海事重工股份有限公司 | A kind of New Marine charging and conversion equipment |
| CN108828393A (en) * | 2018-09-17 | 2018-11-16 | 中车青岛四方车辆研究所有限公司 | DC110V on-line insulation monitoring system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10222409B2 (en) | Method and system for detecting and locating single-phase ground fault on low current grounded power-distribution network | |
| CN203894326U (en) | Insulation resistance measuring circuit and high voltage insulation monitoring system of electric vehicle | |
| CN101930057B (en) | Method and system for detecting faults of power batteries | |
| CN104635133A (en) | Novel fault arc detection method and device | |
| CN203902307U (en) | Electromobile high-voltage-insulating safety protection system and electromobile with same | |
| CN203502580U (en) | Checking system for online insulation monitoring device | |
| CN207528861U (en) | A kind of status early warning device suitable for the detection of high-tension switch cabinet internal gas | |
| CN201654159U (en) | Short-circuit and earth-fault indicator | |
| CN202694483U (en) | Street lamp cable antitheft detection device | |
| CN203644978U (en) | Multifunctional ground wire operating rod | |
| CN103454580B (en) | A kind of circuit-breaker switching on-off coil characteristics proving installation | |
| CN2924549Y (en) | Lighting cable power-off stealing detection device | |
| CN202975225U (en) | Misoperation preventive device for power transmission lines | |
| CN103311965B (en) | Batteries in parallel connection group discharge and recharge intelligent management apapratus and method | |
| CN103618377B (en) | For being connected to backup auto-activating device system and the spare power automatic switching method of small power supply | |
| CN104600791A (en) | One-pile multi-charging type DC charging pile for electric vehicle | |
| RU2011115091A (en) | Distributed security monitoring system with security circuit and method for testing such system | |
| CN103399571B (en) | For pick-up unit and the method for electric vehicle motor controller high tension loop | |
| CN103439627B (en) | Train power supply leakage current test system and detection method | |
| CN101533060B (en) | Power system fault pre-alarming method based on traveling wave electric amount measurement | |
| CN204389636U (en) | Motor train unit top insulation detection system | |
| CN102210077B (en) | Device and method for limiting the rail potential in a DC railway | |
| CN102798782B (en) | High-voltage insulation resistance monitoring alarm | |
| CN104143845A (en) | Wireless charging detecting system for electromobile | |
| CN103454535B (en) | A kind of integrated load series arc faults discrimination method |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20161212 |