CN202661582U - Multifunctional device for insulation diagnosis of railway electric locomotive roof high-voltage equipment - Google Patents
Multifunctional device for insulation diagnosis of railway electric locomotive roof high-voltage equipment Download PDFInfo
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- CN202661582U CN202661582U CN 201220188595 CN201220188595U CN202661582U CN 202661582 U CN202661582 U CN 202661582U CN 201220188595 CN201220188595 CN 201220188595 CN 201220188595 U CN201220188595 U CN 201220188595U CN 202661582 U CN202661582 U CN 202661582U
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Abstract
The utility model relates to a multifunctional device for insulation diagnosis of railway electric locomotive roof high-voltage equipment. The multifunctional device is mainly composed of a control cabinet, a single-chip microcomputer which is installed in the control cabinet, an A/D converter which is connected with the single-chip microcomputer via a signal line, current detectors which are respectively connected to the A/D converter via signal lines, a first current sensor which is connected to one current detector via a current detection line, a second sensor which is connected to the other current detector via a current detection line, an inverter which is connected to the single-chip microcomputer in the cabinet via a signal line, a first lead and a second lead which are connected to the inverter, and a normal detection signal output line, a pantograph lifting forbidden signal output line, a mutual-inductor fault signal output line, a locomotive protection instruction signal line and a communication interface which are connected with the control cabinet. The multifunctional device of the utility model can discover hidden faults timely, thereby preventing a locomotive with hidden troubles from departure; even if the locomotive is in operation, conductors and drivers of the locomotive can handle faults timely when automatic tripping out happens in a traction substation.
Description
Technical field
The utility model relates to a kind of diagnosis of technique device of equipment running status, specifically belong to a kind of detection and diagnosis that is applied to railway electrical locomotive roof high voltage electric equipment state of insulation, simultaneously can be to the multi-function device that is used for the diagnosis of railway electrical locomotive roof high voltage equipment insulation of high voltage potential transformer quality diagnosis.
Background technology
Roof high voltage device and attached electrical equipment are the vitals of railway electric locomotive or electric motor car group, and its work quality and residing working environment, weather conditions and self gross are closely related.When it is subject to the impact of adverse weather environment, the roof high voltage device condition of work of electric locomotive or electric motor car group will be very abominable; Invade High-Voltage Electrical Appliances or roof high-tension apparatus quality when bad when foreign matter, will cause traction substation of electric railway automatic trip protection, the traction power supply arm is interrupted, electric locomotive or electric motor car group will be out of service because of dead electricity.
Yet at present; electric locomotive or electric motor car group do not have the insulation measuring ability of roof high voltage gas equipment; in service at unit; if produce the automatic trip protection; the traction power supply arm is interrupted, and at this moment, insulation status is confirmed and blindly power supply as the roof high-tension apparatus of the electric locomotive under this supply arm or electric motor car group not being carried out; then may cause catenary cut off, cause even more serious fault.
Through retrieving: Shijiazhuang Power ﹠ Locomotive Maintenance Depot, Shijiazhuang Branch of Railwa discloses the patent documentation of " a kind of for power locomotive top high voltage equipment insulation fault detector ", it is by high-voltage mutual inductor (T), net is pressed table (V), dropping resistor R and power supply (DC) form, the output of power supply (DC) and net press table (V) to be connected to respectively the two ends of high-voltage mutual inductor (T) Secondary Winding, dropping resistor R is serially connected with in the loop of power supply (DC) and Secondary Winding 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.This device directly gathers the high-tension electricity of locomotive roof high-tension apparatus 25KV, and by the inversion conversion of high-voltage mutual inductor, the driver and conductor can directly observe the variation of voltage table and judge whether roof high voltage equipment insulation state is good.But the deficiency of its existence is to only have a kind of insulation measuring ability, not to the diagnostic function of high voltage potential transformer.
In " electromagnetism lightning arrester " the 2nd phase in 2010 a kind of " the online insulation detection device of power locomotive top high voltage supply insulator " disclosed in addition, it realizes online detection by add sampling apparatus at insulator, but the deficiency of its existence is the state that this device only can detect insulator, can not to other high-voltage test of roof, can not reflect the state of insulation of roof comprehensively.
At " development of power locomotive top insulation detection device " literary composition that " communication of Zheng Tie science and technology " the 1st phase in 2010 delivers, it is the method realization insulation detection that applies high pressure by the roof apparatus to electric locomotive.But the deficiency of its existence has provided the means of a kind of inspection vehicle top high voltage equipment insulation, and the insulation by applying high voltage detection roof can not realize the quality diagnosis to high voltage potential transformer, function singleness.
Southwest Jiaotong University is in the Engineering Master paper of delivering in May, 2007 in addition, although it is studied the power locomotive top insulation detection device, but the deficiency of its existence is, only should be used as relevant research to present situation, development and the theory of power locomotive top insulation detection technique means, the top insulation pick-up unit of mentioning does not have multifunctional characteristics that the utility model has, and can not diagnose the quality of high voltage potential transformer.
The utility model content
The purpose of this utility model is to solve the state of insulation of present railway electric locomotive or electric motor car group roof high-tension apparatus without diagnostic device, can not prevent accident and occur and accident prevention expansion, the driver and conductor can't grasp the state of the art of roof high-tension apparatus and the deficiency of counter-measure, provide a kind of and can in time find potential faults, prevent in spite of illness outbound of locomotive, and in locomotive operation, when the traction substation automatic trip occurring, for disposing fault, the locomotive driver and conductor provides a kind of multi-function device for the diagnosis of railway electrical locomotive roof high voltage equipment insulation.
Realize the technical measures of above-mentioned purpose:
The multi-function device that is used for the diagnosis of railway electrical locomotive roof high voltage equipment insulation; it is: it is mainly by switch board; be contained in the single-chip microcomputer in the switch board; the A/D converter that is connected by signal wire with single-chip microcomputer; the voltage-level detector and the current detector that are connected respectively by signal wire with A/D converter; the current sensor one that connects by the current detecting line on the current detector; the current sensor two that voltage-level detector connects by the voltage detecting line; the inverter that is connected by signal wire with single-chip microcomputer in the switch board; the wire one that connects on the inverter and wire two, the normal detection signal output line that is connected with switch board and forbid that rising bow is flowed output line and mulual inductor malfunction output line and locomotive protection command signal line; communication interface forms.
It is characterized in that: the detection information memory is housed in switch board.
Characteristics of the present utility model are: the high voltage potential transformer induction by locomotive itself is boosted, and simulates the locomotive operating condition fully; Utilize the unloaded model of transformer to diagnose respectively the turn-to-turn short circuit of high voltage potential transformer and the insulation of the electrical equipment that links to each other with the roof bus with Short-way model; Intelligent Single-Chip Based control and diagnosis; It can be diagnosed the quality of high voltage potential transformer itself, can apply high voltage for the roof bus again, detect and diagnose the state of insulation of roof electrical equipment, for the locomotive inspection and repair professional provides effective technological means, prevent the in spite of illness outbound of locomotive roof high-tension apparatus, reach the purpose of preventing accident; For providing a kind of site technology means to confirm in time that the state of the art of roof is convenient in time adopt an effective measure, the driver and conductor in the locomotive operation avoids fault spread.
Description of drawings
Fig. 1 is structural representation of the present utility model
Fig. 2 is work synoptic diagram of the present utility model
Among the figure: 1-switch board; 2-single-chip microcomputer, 3-A/D converter, 4-current detector one; 5-current detector two; 6-current detecting line, 7-current sensor, one, 8-signal wire; 9-voltage detecting line; 10-current sensor, two, 11-inverter, 12-wire one; 13-wire two; 14-normal signal output line, 15-forbid that rising bow is flowed output line, 16-mulual inductor malfunction output line; 17-locomotive protection command signal line; 18-communication interface, 19-detection information memory, 20-high voltage potential transformer.
Embodiment
Be described further below in conjunction with accompanying drawing:
The multi-function device that is used for the diagnosis of railway electrical locomotive roof high voltage equipment insulation, its structure: at switch board 1 interior installation single-chip microcomputer 2, single-chip microcomputer 2 connects A/D converter 3 by signal wire 8, A/D converter 3 connects respectively current detector 4 and current detector 5 by signal wire 8, current detector 5 by current detecting line 6 be connected in current sensor 1, current detector 4 is connected in current sensor 2 10 by current detecting line 9; Single-chip microcomputer 2 in the switch board 1 connects inverter 11 by signal wire 8, connects wire 1 and wire 2 13 on the inverter 11; Connect respectively normal signal output line 14 on the single-chip microcomputer 2 in switch board 1, forbid that rising bow is flowed output line 15, mulual inductor malfunction output line 16, locomotive protection command signal line 17 and communication interface 18, yet connect in addition and detect information memory 19.
Use principle
When the driver and conductor of electric locomotive (or motor train unit) need to need to confirm the high-tension apparatus electric insulation situation of roof, the circuit of 20 limits of high voltage potential transformer being introduced locomotive control disconnects, join the wire 1 of connection on the inverter 11 and arbitrary winding on wire 2 13 and 20 limits of high voltage potential transformer this moment, and the current sensor 2 10 that connects on the current detecting line 9 is dropped into; The current sensor 1 that connects on the current detecting line 6 is connected to the former limit winding of high voltage potential transformer 20, then start, to export the inferior limit that one 220 volts power-frequency voltage is loaded into high voltage potential transformer 20 this moment, the primary current effective value of sampling high voltage potential transformer 20 is made as A, inferior limit current effective value is made as B, when the two all was lower than controlling value, normal detection signal output line 14 displays were normal; When the A value surpasses controlling value and B value during in allowed band, forbid that rising bow is flowed output line 15 and shows that the roof insulation of electrical installation are bad and forbid that rising bow is subjected to stream information, locomotive protects command signal line 17 to carry out steering order, and the driver then can dispose according to the rules; When the normal and B value of A value surpassed controlling value, mulual inductor malfunction output line 16 showed that exporting high voltage potential transformers 20 has failure message, and the driver then can dispose according to the rules.
This utility model can adopt 110 volts of direct current supplys of locomotive and carry 12/24/48 volt and carry powered battery.
Above embodiment is only for exemplifying.
Claims (2)
1. the multi-function device that is used for the diagnosis of railway electrical locomotive roof high voltage equipment insulation; it is characterized in that: it is mainly by switch board; be contained in the single-chip microcomputer in the switch board; the A/D converter that is connected by signal wire with single-chip microcomputer; the voltage-level detector and the current detector that are connected respectively by signal wire with A/D converter; the current sensor one that connects by the current detecting line on the current detector; the current sensor two that voltage-level detector connects by the voltage detecting line; the inverter that is connected by signal wire with single-chip microcomputer in the switch board; the wire one that connects on the inverter and wire two, the normal detection signal output line that is connected with switch board and forbid that rising bow is flowed output line and mulual inductor malfunction output line and locomotive protection command signal line; communication interface forms.
2. the multi-function device for the diagnosis of railway electrical locomotive roof high voltage equipment insulation as claimed in claim 1 is characterized in that: information memory is housed in switch board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220188595 CN202661582U (en) | 2012-04-28 | 2012-04-28 | Multifunctional device for insulation diagnosis of railway electric locomotive roof high-voltage equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220188595 CN202661582U (en) | 2012-04-28 | 2012-04-28 | Multifunctional device for insulation diagnosis of railway electric locomotive roof high-voltage equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202661582U true CN202661582U (en) | 2013-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220188595 Expired - Fee Related CN202661582U (en) | 2012-04-28 | 2012-04-28 | Multifunctional device for insulation diagnosis of railway electric locomotive roof high-voltage equipment |
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| Country | Link |
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| CN (1) | CN202661582U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133442A (en) * | 2019-05-30 | 2019-08-16 | 中车青岛四方机车车辆股份有限公司 | A kind of rail vehicle extra-high voltage over current fault detection device and method |
| CN110806505A (en) * | 2019-12-03 | 2020-02-18 | 通号(北京)轨道工业集团有限公司轨道交通技术研究院 | Signal output control equipment |
| CN114089124A (en) * | 2021-09-30 | 2022-02-25 | 国电南瑞科技股份有限公司 | High-speed railway traction power supply contact network disconnection warning method and device |
-
2012
- 2012-04-28 CN CN 201220188595 patent/CN202661582U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133442A (en) * | 2019-05-30 | 2019-08-16 | 中车青岛四方机车车辆股份有限公司 | A kind of rail vehicle extra-high voltage over current fault detection device and method |
| CN110806505A (en) * | 2019-12-03 | 2020-02-18 | 通号(北京)轨道工业集团有限公司轨道交通技术研究院 | Signal output control equipment |
| CN114089124A (en) * | 2021-09-30 | 2022-02-25 | 国电南瑞科技股份有限公司 | High-speed railway traction power supply contact network disconnection warning method and device |
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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: 20130109 Termination date: 20160428 |