CN2541249Y - Power locomotive top high voltage equipment insulation fault detector - Google Patents
Power locomotive top high voltage equipment insulation fault detector Download PDFInfo
- Publication number
- CN2541249Y CN2541249Y CN 02233226 CN02233226U CN2541249Y CN 2541249 Y CN2541249 Y CN 2541249Y CN 02233226 CN02233226 CN 02233226 CN 02233226 U CN02233226 U CN 02233226U CN 2541249 Y CN2541249 Y CN 2541249Y
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- tension
- power supply
- voltage
- tension apparatus
- roof
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Abstract
The utility model relates to an insulation fault detecting device of electric engine top high-tension apparatus, which is composed of a high-tension mutual inducer (T), a web voltage meter (V), a reducing resistance R and a power supply (DC). The output of the power supply (DC) and the web voltage meter (V) are respectively connected with both ends of the secondary winding of the high-tension mutual inducer (T), the reducing resistance R is connected with the return circuit which is formed by the power supply (DC) and the secondary winding in series, and the primary winding of the high-tension mutual inducer (T) is connected with the high-tension junction of the top high-tension apparatus. The device directly collects the high tension electricity of 25 KV from the top high-tension apparatus, and drivers can directly observe the change of a voltage meter to judge whether the insulation condition of the top high-tension apparatus is good or not through the inverse transformation of the high-tension mutual inducer. Drivers can immediately be aware of the reduction of the insulation property of the top high-tension apparatus or the earth faults, thereby effectively avoiding accidents.
Description
Technical field
The utility model relates to a kind of electric locomotive roof high voltage equipment insulation failure detector that is used for.
Background technology
Electric locomotive roof high-tension apparatus all is installed in the open air, so require high voltage electric equipment and locomotive roof that the good insulation performance is arranged, could effectively prevent the infringement of rough weather such as wind, sand, rain, snow and the attack of thunder and lightning atmospheric over-voltage.Particularly during the electric locomotive traction train operation, if locomotive roof high-tension apparatus et out of order or other reason cause the high-tension apparatus fault, cause high-tension apparatus ground connection or and roof between insulation reduce, as can not in time finding, to cause effluve, ground connection, cause the damage of high-tension apparatus and the paralysis of operation contact system, have a strong impact on the normal order of traffic safety and railway transportation.
Summary of the invention
The purpose of this utility model is to provide a kind of detecting device of the roof of monitoring power electric locomotive in real time high voltage equipment insulation fault.
Order of the present utility model is achieved in that this detecting device presses table (V), dropping resistor R and power supply (DC) to form by high-voltage mutual inductor (T), net, the output of power supply (DC) and net press table (V) to be connected to the two ends of high-voltage mutual inductor (T) intensity coil respectively, dropping resistor R is serially connected with in the loop of power supply (DC) and intensity coil composition, and a winding of high-voltage mutual inductor (T) links to each other with the high-voltage contact of locomotive roof high-tension apparatus respectively.
Described high-tension apparatus is pantograph, line circuit breaker, roof bus, high-tension current transformer, lightning arrester and roof bus supporting insulator.
The technological advance that gets that the utility model is got is: this device is directly gathered the high-tension current of locomotive roof high-tension apparatus 25KV, by the inversion conversion of high-voltage mutual inductor, but the variation of driver and conductor's direct viewing volt meter judges whether roof high voltage equipment insulation state is good.Thereby can in time find the reduction or the earth fault of roof high voltage equipment insulation performance, old place generation effectively prevents and avoids getting over.
Description of drawings
Be that embodiment further describes the utility model below with the accompanying drawing:
Fig. 1 is an electrical schematic diagram of the present utility model.
The specific embodiment
As shown in Figure 1, this detecting device presses table (V), dropping resistor R and power supply (DC) to form by high-voltage mutual inductor (T), net, the output of power supply (DC) and net press table (V) to be connected to the two ends of high-voltage mutual inductor (T) intensity coil respectively, dropping resistor R is serially connected with in the loop of power supply (DC) and intensity coil composition, and a winding of high-voltage mutual inductor (T) links to each other with the high-voltage contact of locomotive roof high-tension apparatus respectively.The 100V of power supply (DC) output, 50HZ voltage insert the two ends of high-voltage mutual inductor (T) intensity coil, and winding of high-voltage mutual inductor (T) connects the high pressure of the 25KV that is introduced by high-tension apparatus.
During this device work, when a winding has load or short circuit (is that insulation reduces between roof high-tension apparatus and roof, certain resistance value or ground connection are arranged therebetween) time, once winding current increases at random, the intensity coil electric current also will be along with increase, voltage on the dropping resistor R in the intensity coil loop will increase, intensity coil voltage will reduce (because of the power line voltage in intensity coil loop constant), be reacted to that voltage on the net pressure table will reduce or be 0V.The change of voltage that bus attendant presses table to show by the net of observing driver's cab, determine the roof high-tension apparatus whether ground connection or insulation reduce, if net pressure table shows that 25KV represents normally, if demonstration 0V, expression roof high-tension apparatus has the ground connection place, must not rise pantograph in this case.
Claims (2)
1, a kind of electric locomotive roof high voltage equipment insulation failure detector, it is characterized in that it presses table (V), dropping resistor R and power supply (DC) to form by high-voltage mutual inductor (T), net, the output of power supply (DC) and net press table (V) to be connected to the two ends of high-voltage mutual inductor (T) intensity coil respectively, dropping resistor R is serially connected with in the loop of power supply (DC) and intensity coil composition, and a winding of high-voltage mutual inductor (T) links to each other with the high-voltage contact of locomotive roof high-tension apparatus respectively.
2, electric locomotive roof high voltage equipment insulation failure detector according to claim 1 is characterized in that said high-tension apparatus is pantograph, line circuit breaker, roof bus, high-tension current inductor, high voltage potential transformer, lightning arrester and roof bus supporting insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02233226 CN2541249Y (en) | 2002-04-27 | 2002-04-27 | Power locomotive top high voltage equipment insulation fault detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02233226 CN2541249Y (en) | 2002-04-27 | 2002-04-27 | Power locomotive top high voltage equipment insulation fault detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2541249Y true CN2541249Y (en) | 2003-03-26 |
Family
ID=33708415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02233226 Expired - Fee Related CN2541249Y (en) | 2002-04-27 | 2002-04-27 | Power locomotive top high voltage equipment insulation fault detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2541249Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183126B (en) * | 2006-11-17 | 2010-12-15 | 通用汽车环球科技运作公司 | Prognostic for loss of high-voltage isolation |
| CN102774388A (en) * | 2012-07-29 | 2012-11-14 | 中国北车集团大连机车车辆有限公司 | Method for controlling operation of electric locomotive when high voltage potential transformer fails and device |
| CN102866330A (en) * | 2012-09-11 | 2013-01-09 | 株洲中车电力机车配件有限公司 | Locomotive high-low voltage insulation detection device |
| CN102928682A (en) * | 2011-08-09 | 2013-02-13 | 南车洛阳机车有限公司 | Meshless high-voltage test device of electric locomotive |
| CN105004974A (en) * | 2015-07-14 | 2015-10-28 | 南车青岛四方机车车辆股份有限公司 | Real-time detection method and real-time detection system for insulating property of high-voltage insulator on top of Multiple Units |
| CN108802631A (en) * | 2018-06-13 | 2018-11-13 | 株洲时代电子技术有限公司 | A kind of contact net power supply high-pressure system insulation detecting method |
-
2002
- 2002-04-27 CN CN 02233226 patent/CN2541249Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101183126B (en) * | 2006-11-17 | 2010-12-15 | 通用汽车环球科技运作公司 | Prognostic for loss of high-voltage isolation |
| CN102928682A (en) * | 2011-08-09 | 2013-02-13 | 南车洛阳机车有限公司 | Meshless high-voltage test device of electric locomotive |
| CN102928682B (en) * | 2011-08-09 | 2016-05-25 | 南车洛阳机车有限公司 | High-voltage testing device without electric network for electric locomotives |
| CN102774388A (en) * | 2012-07-29 | 2012-11-14 | 中国北车集团大连机车车辆有限公司 | Method for controlling operation of electric locomotive when high voltage potential transformer fails and device |
| CN102866330A (en) * | 2012-09-11 | 2013-01-09 | 株洲中车电力机车配件有限公司 | Locomotive high-low voltage insulation detection device |
| CN102866330B (en) * | 2012-09-11 | 2015-12-16 | 株洲中车电力机车配件有限公司 | A kind of locomotive high-low voltage insulation detection device |
| CN105004974A (en) * | 2015-07-14 | 2015-10-28 | 南车青岛四方机车车辆股份有限公司 | Real-time detection method and real-time detection system for insulating property of high-voltage insulator on top of Multiple Units |
| CN108802631A (en) * | 2018-06-13 | 2018-11-13 | 株洲时代电子技术有限公司 | A kind of contact net power supply high-pressure system insulation detecting method |
| CN108802631B (en) * | 2018-06-13 | 2020-10-09 | 株洲时代电子技术有限公司 | Method for detecting insulation of high-voltage system of power supply of contact network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |