CN104422813A - Direct-current electroscope and working method thereof - Google Patents

Direct-current electroscope and working method thereof Download PDF

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Publication number
CN104422813A
CN104422813A CN201310405196.8A CN201310405196A CN104422813A CN 104422813 A CN104422813 A CN 104422813A CN 201310405196 A CN201310405196 A CN 201310405196A CN 104422813 A CN104422813 A CN 104422813A
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conductive head
electroscope
electrical verification
information
tested
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CN201310405196.8A
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CN104422813B (en
Inventor
常青
乔红伟
谢涛
皮鹭军
罗锋生
梁广
陈海军
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Zhuhai Unitech Power Technology Co Ltd
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Zhuhai Unitech Power Technology Co Ltd
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Abstract

The invention provides a direct-current electroscope and a working method thereof. The direct-current electroscope comprises a shell, a positive electrode conductive head, a negative electrode conductive head, a data acquisition unit, an information processing unit and a communication unit, wherein the data acquisition unit is used for acquiring electricity-checking information of a to-be-checked circuit; the information processing unit is used for receiving the electricity-checking information, sent by the data acquisition unit, of the to-be-checked circuit, and judging and processing the electricity-checking information to obtain electricity-checking result information; the communication unit is used for transmitting the electricity-checking result information sent by the information processing unit to an external host machine. And therefore, the direct-current electroscope and the working method thereof can be adopted to ensure that a grounding line is hung or disconnected under power-off operation during the hanging of the grounding line, so that power accident harm due to negligence and incorrectness of the electricity-checking operation is avoided; an intelligent grounding electricity-checking cabinet can be matched to control and manage the temporary power grounding line to avoid wrong operation, so that the temporary grounding line can be effectively dismounted and managed for convenience in use. The direct-current electroscope is high in connecting reliability.

Description

DC electroscope and method of work thereof
Technical field
The present invention relates to the electroscopy equipment technical field of track traffic industry or power industry, particularly relate to a kind of DC electroscope and method of work thereof.
Background technology
At present, in urban track traffic electric power system along the line and other system of being associated when carrying out normal service and breakdown repair, often need at maintenance position installing temporary ground wire, traditional mode is when running into maintenance, maintainer carries ground wire and electroscope is reached the spot, first carry out electrical verification, electrical verification is passed through, hanging earthing conductor.Installing ground wire is the safety in order to protect in maintenance of electrical equipment human users process, if ground wire installation position is not right, does not then have the effect of protection personnel.
Ground connection operation is action very frequently in electrical installation, when electrical equipment and power circuit interruption maintenance, check time, for preventing the attack of unexpected incoming call, induced electricity and residual charge, guarantee the life security of operating personnel on equipment, must each side of likely sending a telegram here, induced electricity, storing charge may be produced electrical equipment on by regulation install establish ground wire.For this reason, electrical verification work be urban track traffic normal service and breakdown repair time requisite anti-error item, earthing cable and interface unit must be made up of the metallic conductor of high-quality, as the metal material such as copper, aluminium, guarantee that the self-resistance of link circuit is little, there is good electric conductivity, realize low-resistance electrical connection and short circuit to greatest extent.Galvanoscopic Elecrical connector part must have the metallic conductor of high-quality to make simultaneously, the sampling of circuit board control signal must select safe and reliable electric control circuit to detect, and electrical verification operating structure part must select excellent charged insulating material to ensure the security that electrical verification operates and accuracy., also there is operation steps numerous and diverse in existing earthing device, ground connection inconvenient operation, ground connection problem not exclusively reliably.
In addition, at present when urban track traffic normal service and breakdown repair, in whole process, also there is the problem of following several respects: before (1) hanging earthing conductor, do not carry out pressure electrical verification, there is the possibility of live connection of ground wire; (2) state of ground wire cannot be gathered, cannot on send the state of ground wire, there is the possibility of line power transmission with ground; In order to ensure the personal safety of operating personnel, need to research and develop a kind of DC electroscope condition checkout gear with communication module, when guaranteeing hanging earthing conductor, without electricity operation mounting or disconnection ground wire.Avoid by the carelessness of electrical verification work, improper and cause the harm of electric power accident to occur.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of DC electroscope and method of work thereof, when guaranteeing hanging earthing conductor, without electricity operation mounting or disconnect ground wire, avoids by the carelessness of electrical verification work, improper and cause the harm of electric power accident to occur.
The present invention is achieved through the following technical solutions:
DC electroscope, wherein, includes:
Shell;
Positive conductive head, described positive conductive head is fixed on shell, for being connected with electric line positive signal power supply to be tested;
Negative conductive head, described negative conductive head and positive conductive head mutually insulated are arranged on shell isolator, for being connected with electric line negative signal power supply to be tested;
Data acquisition unit, described data acquisition unit and positive conductive head and negative conductive head are electrically connected, for gathering the electrical verification information of electric line to be tested;
Information process unit, described information process unit is connected with data acquisition unit, receives the electrical verification information of electric line to be tested that data acquisition unit sends, and carries out judging and process draws electrical verification object information;
Communication unit, described communication unit is connected with information process unit, and the electrical verification object information sent by information process unit externally main frame transmits.
Wherein in an embodiment, described DC electroscope entirety adopts portable club shaped structure.
Further, in the inner chamber of shell, be packaged with current limiting component, between positive conductive head and negative conductive head; Current limiting component includes more than one dropping resistor; Described current limiting component is electrically connected with positive conductive head and negative conductive head respectively by connection wire and forms reduction voltage loop, and described reduction voltage loop is data acquisition unit.
Further, be packaged with circuit main board in the inner chamber of shell, described circuit main board includes central processing unit CPU; Described current limiting component is electrically connected by connection wire and circuit main board; Described circuit main board includes communication module unit, and described communication unit includes wireless communication module and transmit antenna; Wireless communication module and transmit antenna electrical connection.
Further, described circuit main board includes information process unit, described information process unit includes electrical verification loop and the acousto-optic warning piece of electrical connection mutually, electrical verification loop and the electrical connection of acousto-optic warning piece, described electrical verification loop is by the prompting of sound and light alarm parts and judgement electrical verification object information.
Further, described circuit main board includes the activation unit that the central processing unit CPU starting wake-up circuit mainboard carries out state-detection, and described activation unit includes tongue tube.
The method of work of DC electroscope, wherein, comprises the steps:
Positive conductive head is connected with electric line positive signal power supply to be tested by S1, and negative conductive head is connected with electric line negative signal power supply to be tested;
The whether charged electrical verification information of S2 data acquisition unit acquires electric line to be tested;
Whether charged S3 information process unit receives the electrical verification information of electric line to be tested that data acquisition unit sends, and carry out judging and process and draw electrical verification object information;
The electrical verification object information that information process unit sends by S4 communication unit externally main frame transmits.
Beneficial effect of the present invention is as follows:
DC electroscope of the present invention and method of work thereof, because DC electroscope includes shell, positive conductive head, negative conductive head, data acquisition unit, information process unit and communication unit, data acquisition unit is for gathering the electrical verification information of electric line to be tested, information process unit receives the electrical verification information of electric line to be tested that data acquisition unit sends, and carries out judging and process draws electrical verification object information; Communication unit, the electrical verification object information sent by information process unit externally main frame transmits.Current limiting component carries out current limliting mainly through dropping resistor to 1500V DC voltage.Therefore, adopt DC electroscope of the present invention and method of work thereof, when can guarantee hanging earthing conductor, without electricity operation mounting or disconnect ground wire, avoid by the carelessness of electrical verification work, improper and cause the harm of electric power accident to occur.DC electroscope provided by the present invention can coordinate smart grounding electrical verification cabinet to carry out control and management to electric power temporary ground wire, avoids occurring maloperation, effectively can carry out temporarily line mounting or dismounting management, easy to use, and connection reliability is high.
Accompanying drawing explanation
Fig. 1 is the contour structures schematic diagram of DC electroscope of the present invention;
Fig. 2 is the inner structure schematic diagram of DC electroscope of the present invention;
Fig. 3 is the circuit main board structural representation of DC electroscope of the present invention;
Fig. 4 is the communication unit structural representation of DC electroscope of the present invention;
Fig. 5 is the one-piece construction schematic diagram of DC electroscope of the present invention.
Description of reference numerals:
100, computer key; 101, positive conductive head; 102, negative conductive head; 103, shell, 104, insulation handle; 201, the first soft connecting line; 202, current limiting component; 203, the second soft connecting line; 204, circuit main board; 205, tongue tube; 206, the 3rd soft connecting line; 207, charged pilot lamp; 208, button is tested; 209, hummer; 210, bi-colour LED; 211, battery module; 212, wireless communication module and transmit antenna; 213, connection terminal; 301, magnet steel; 400, host computer.
Embodiment
The present invention, in order to solve the problem of prior art, proposes a kind of DC electroscope, as shown in Figure 1,5, wherein, includes:
Shell 103;
Positive conductive head 101, described positive conductive head is fixed on shell 103, for being connected with electric line positive signal power supply to be tested;
Negative conductive head 102, described negative conductive head 102 is arranged on shell 103, for being connected with electric line negative signal power supply to be tested with positive conductive head 101 mutually insulated isolator;
Data acquisition unit, described data acquisition unit and positive conductive head 101 and negative conductive head 102 are electrically connected, for gathering the electrical verification information of electric line to be tested;
Information process unit, described information process unit is connected with data acquisition unit, receives the electrical verification information of electric line to be tested that data acquisition unit sends, and carries out judging and process draws electrical verification object information;
Communication unit, described communication unit is connected with information process unit, and the electrical verification object information sent by information process unit externally main frame transmits.
Wherein in an embodiment, described DC electroscope entirety adopts portable club shaped structure.
Further, as shown in Figure 1,2,3, 4, current limiting component 202 in the inner chamber of shell 103, is packaged with, between positive conductive head 101 and negative conductive head 102; Current limiting component 202 includes more than one dropping resistor; Described current limiting component 202 is electrically connected with positive conductive head 101 and negative conductive head 102 respectively by connection wire and forms reduction voltage loop, and described reduction voltage loop is data acquisition unit.
Further, be packaged with circuit main board 204 in the inner chamber of shell 103, described circuit main board includes central processing unit CPU; Described current limiting component 202 is electrically connected by connection wire and circuit main board 204; Described circuit main board 204 includes communication module unit, and described communication unit includes wireless communication module and transmit antenna 212; Wireless communication module and transmit antenna electrical connection.
Further, described circuit main board 204 includes information process unit, described information process unit includes electrical verification loop and the acousto-optic warning piece of electrical connection mutually, electrical verification loop and the electrical connection of acousto-optic warning piece, described electrical verification loop is by the prompting of sound and light alarm parts and judgement electrical verification object information.
Further, described circuit main board 204 includes the activation unit that the central processing unit CPU starting wake-up circuit mainboard carries out state-detection, and described activation unit includes tongue tube 205, and tongue tube 205 is connected with central processing unit CPU.
The method of work of DC electroscope, wherein, comprises the steps:
Positive conductive head is connected with electric line positive signal power supply to be tested by S1, and negative conductive head is connected with electric line negative signal power supply to be tested;
The whether charged electrical verification information of S2 data acquisition unit acquires electric line to be tested;
Whether charged S3 information process unit receives the electrical verification information of electric line to be tested that data acquisition unit sends, and carry out judging and process and draw electrical verification object information;
The electrical verification object information that information process unit sends by S4 communication unit externally main frame transmits.
Specifically, as Fig. 1, 2, 3, 4, shown in 5, for above-mentioned prior art present situation, the technical matters that the present invention solves is to provide a kind of DC electroscope, by tongue tube 205 under the effect of the magnet steel 301 of extraneous trigger mechanism, start the activation that wake-up circuit mainboard 204 carries out state-detection, carry out the prompting of sound and light alarm by circuit main board 204 and determined whether electricity, its electric control circuit can be linked by wireless communication module and transmit antenna, by whether charged information transmission carries out communication to being transferred to main frame (being generally computer key 100 and host computer 400).
Embodiment:
And the present invention is described in detail in conjunction with the embodiments below with reference to the accompanying drawings.It should be noted that, when not conflicting, the feature in following embodiment and embodiment can combine mutually.
As shown in Fig. 1,2,3,4,5, the cylindrical bar shape anatomical connectivity of the identical central line that described DC electroscope entirety employing more than one section diameter is different forms, positive conductive head 101 is positioned at head end, negative conductive head 102 is positioned at stage casing, and described DC electroscope comprises the insulation handle 104 being positioned at tail end; Positive conductive head 101 and negative conductive head 102 have included circular metal groove.
Preferably, sound and light alarm parts include: be arranged on the charged pilot lamp 207 on circuit main board 204 and hummer 209.
During electrical verification, positive conductive head 101 and electric line positive signal power supply to be tested are connected, negative conductive head 102 and electric line negative signal power supply to be tested are connected, between positive conductive head 101 and negative conductive head 102, place current limiting component 202 simultaneously, current limiting component 202 positive terminal connects 201 with the first flexible cord and is communicated with positive conductive head 101, and the negative pole end of current limiting component 202 is communicated with negative conductive head 102 with the second soft connecting line 203; Current limiting component 202 by the 3rd soft connecting line 206 connecting circuit mainboard 204, thus forms reduction voltage loop and electrical verification loop.Reduction voltage loop is used for data acquisition, and electrical verification loop is used for information processing.Pointed out by charged pilot lamp 207 in electrical verification loop and determined whether electricity, when on-the-spot PT is charged, the charged pilot lamp 207 of device can glimmer, hummer 209 meeting alarm, now information transmission can be carried out communication to being transferred to main frame (being generally computer key 100) by wireless communication module and transmit antenna 212, when main frame (being generally computer key 100) is by after the information processing result that receives, then next step safe operation and maintenance can be carried out; When primary equipment is not charged, in device, charged pilot lamp 207 can extinguish, and now wireless communication module and transmit antenna 212 can not send the transmission that height is pressed with telecommunications breath.
Described circuit main board 204 is also provided with:
Test button 208, bi-colour LED 210, battery module 211 and connection terminal 213; There are two plug wire holes to pass for the second soft connecting line 203, the 3rd soft connecting line 206 in connection terminal 213, circuit main board 204 are communicated with and are connected with negative conductive head 102; Test button 208, bi-colour LED 210 are connected with central processing unit CPU respectively with battery module 211.
Battery module 211 is for providing hardware circuit board power supply, and when not carrying out electrical verification operation, battery is in dormant state; When carrying out electrical verification operation, battery is in running order.Bi-colour LED 210 is used to indicate electrical verification state and battery undervoltage state, test button 208 is for carrying out self-checking function, described DC electroscope possesses the self-checking function of normal work, if press test button 208 during self-inspection, charged pilot lamp 207, hummer 209 and bi-colour LED 210 can send sound and light alarm prompting, and when electroscope fault, device obviously should indicate fault, without acousto-optic alarm, and during electrical verification communication, can guarantee that not sending height is pressed with telecommunications breath.
The method of work of above-mentioned DC electroscope, wherein, also comprises wake-up step, and control the effect of magnet steel at extraneous trigger mechanism under, the central processing unit CPU that tongue tube 205 starts wake-up circuit mainboard carries out the work of state-detection.
In step S3, information process unit judges and whether charged process draw electrical verification object information; Pointed out by sound and light alarm mode and judge whether electric line to be tested has electricity; When electric line to be tested is charged, charged pilot lamp flicker, buzzer warning prompting; When electric line to be tested is not charged, charged pilot lamp extinguishes.
In step S4, linked by wireless communication module and transmit antenna, by whether charged electrical verification object information is transferred on computer key.
The method of work of above-mentioned DC electroscope, wherein, also comprises lasting self-inspection step, the self-inspection whether DC electroscope carries out can normally working detects, when DC electroscope fault being detected, carry out malfunction coefficient, and can guarantee that when electrical verification communication not sending height is pressed with telecommunications breath.
The above embodiment only have expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (14)

1. DC electroscope, is characterized in that, includes:
Shell;
Positive conductive head, described positive conductive head is fixed on shell, for being connected with electric line positive signal power supply to be tested;
Negative conductive head, described negative conductive head and positive conductive head mutually insulated are arranged on shell isolator, for being connected with electric line negative signal power supply to be tested;
Data acquisition unit, described data acquisition unit and positive conductive head and negative conductive head are electrically connected, for gathering the electrical verification information of electric line to be tested;
Information process unit, described information process unit is connected with data acquisition unit, receives the electrical verification information of electric line to be tested that data acquisition unit sends, and carries out judging and process draws electrical verification object information;
Communication unit, described communication unit is connected with information process unit, and the electrical verification object information sent by information process unit externally main frame transmits.
2. DC electroscope according to claim 1, is characterized in that, described DC electroscope entirety adopts portable club shaped structure.
3. DC electroscope according to claim 1 and 2, is characterized in that, is packaged with current limiting component in the inner chamber of described shell, between positive conductive head and negative conductive head; Current limiting component includes more than one dropping resistor; Described current limiting component is electrically connected with positive conductive head and negative conductive head respectively by connection wire and forms reduction voltage loop, and described reduction voltage loop is data acquisition unit.
4. DC electroscope according to claim 3, is characterized in that, is packaged with circuit main board in the inner chamber of described shell, and described circuit main board includes central processing unit CPU; Described current limiting component is electrically connected by connection wire and circuit main board; Described circuit main board includes communication module unit, and described communication unit includes wireless communication module and transmit antenna; Wireless communication module and transmit antenna electrical connection.
5. DC electroscope according to claim 4, it is characterized in that, described circuit main board includes information process unit, described information process unit includes electrical verification loop and the acousto-optic warning piece of electrical connection mutually, electrical verification loop and the electrical connection of acousto-optic warning piece, described electrical verification loop is by the prompting of sound and light alarm parts and judgement electrical verification object information.
6. DC electroscope according to claim 5, it is characterized in that, described circuit main board includes the activation unit that the central processing unit CPU starting wake-up circuit mainboard carries out state-detection, and described activation unit includes tongue tube, and tongue tube is connected with central processing unit CPU.
7. DC electroscope according to claim 6, it is characterized in that, the cylindrical bar shape anatomical connectivity of the identical central line that overall employing more than one section diameter is different forms, and positive conductive head is positioned at head end, negative conductive head is positioned at stage casing, and described DC electroscope comprises the insulation handle being positioned at tail end; Positive conductive head and negative conductive head have included circular metal groove.
8. DC electroscope according to claim 7, is characterized in that, described sound and light alarm parts include: be arranged on the charged pilot lamp on circuit main board and hummer.
9. DC electroscope according to claim 8, is characterized in that, described circuit main board is also provided with: test button, bi-colour LED, battery module and connection terminal; There are two plug wire holes to pass for the second soft connecting line, the 3rd soft connecting line in connection terminal, circuit main board are communicated with and are connected with negative conductive head; Test button, bi-colour LED are connected with central processing unit CPU respectively with battery module.
10. according to the method for work of the DC electroscope in claim 1 to 9 described in any one, it is characterized in that, comprise the steps:
Positive conductive head is connected with electric line positive signal power supply to be tested by S1, and negative conductive head is connected with electric line negative signal power supply to be tested;
The whether charged electrical verification information of S2 data acquisition unit acquires electric line to be tested;
Whether charged S3 information process unit receives the electrical verification information of electric line to be tested that data acquisition unit sends, and carry out judging and process and draw electrical verification object information;
The electrical verification object information that information process unit sends by S4 communication unit externally main frame transmits.
The method of work of 11. DC electroscopes according to claim 10, it is characterized in that, also comprise wake-up step, control the effect of magnet steel at extraneous trigger mechanism under, the central processing unit CPU of tongue tube startup wake-up circuit mainboard carries out the work of state-detection.
The method of work of 12. DC electroscopes according to claim 11, is characterized in that, in step S3, information process unit judges and whether charged process draw electrical verification object information; Pointed out by sound and light alarm mode and judge whether electric line to be tested has electricity; When electric line to be tested is charged, charged pilot lamp flicker, buzzer warning prompting; When electric line to be tested is not charged, charged pilot lamp extinguishes.
The method of work of 13. DC electroscopes according to claim 11, is characterized in that, in step S4, is linked by wireless communication module and transmit antenna, is wirelessly transmitted to charged electrical verification object information is transferred on computer key.
The method of work of 14. DC electroscopes according to claim 11, it is characterized in that, also comprise lasting self-inspection step, the self-inspection whether DC electroscope carries out can normally working detects, when DC electroscope fault being detected, carry out malfunction coefficient, and can guarantee that when electrical verification communication not sending height is pressed with telecommunications breath.
CN201310405196.8A 2013-09-06 2013-09-06 DC electroscope and its method of work Active CN104422813B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105253035A (en) * 2015-10-15 2016-01-20 成都合众达电气技术有限公司 Grounding short-circuiting apparatus of urban mass transit power supply system and grounding short-circuit method thereof

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002372553A (en) * 2001-06-14 2002-12-26 East Japan Railway Co Direct-current electroscope
CN101237161A (en) * 2007-12-14 2008-08-06 张伟良 Remote monitoring management system for power supply overhaul secure operation
CN201549936U (en) * 2009-11-17 2010-08-11 珠海优特电力科技股份有限公司 Grounding wire device
CN102064395A (en) * 2009-11-17 2011-05-18 珠海优特电力科技股份有限公司 Grounding device and working method thereof
CN202204869U (en) * 2011-09-26 2012-04-25 李彬 Digital display DC electroscope
CN103257264A (en) * 2013-04-27 2013-08-21 国网电力科学研究院武汉南瑞有限责任公司 Novel high-voltage electroscope for alternating currents and direct currents
CN203164276U (en) * 2013-03-18 2013-08-28 江苏省电力公司苏州供电公司 Voltage indication type electroscope
CN203241470U (en) * 2013-05-08 2013-10-16 珠海优特电力科技股份有限公司 Direct current electroscope and direct current electroscopy system
CN203519705U (en) * 2013-09-06 2014-04-02 珠海优特电力科技股份有限公司 DC electroscope

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002372553A (en) * 2001-06-14 2002-12-26 East Japan Railway Co Direct-current electroscope
CN101237161A (en) * 2007-12-14 2008-08-06 张伟良 Remote monitoring management system for power supply overhaul secure operation
CN201549936U (en) * 2009-11-17 2010-08-11 珠海优特电力科技股份有限公司 Grounding wire device
CN102064395A (en) * 2009-11-17 2011-05-18 珠海优特电力科技股份有限公司 Grounding device and working method thereof
CN202204869U (en) * 2011-09-26 2012-04-25 李彬 Digital display DC electroscope
CN203164276U (en) * 2013-03-18 2013-08-28 江苏省电力公司苏州供电公司 Voltage indication type electroscope
CN103257264A (en) * 2013-04-27 2013-08-21 国网电力科学研究院武汉南瑞有限责任公司 Novel high-voltage electroscope for alternating currents and direct currents
CN203241470U (en) * 2013-05-08 2013-10-16 珠海优特电力科技股份有限公司 Direct current electroscope and direct current electroscopy system
CN203519705U (en) * 2013-09-06 2014-04-02 珠海优特电力科技股份有限公司 DC electroscope

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105253035A (en) * 2015-10-15 2016-01-20 成都合众达电气技术有限公司 Grounding short-circuiting apparatus of urban mass transit power supply system and grounding short-circuit method thereof
CN105253035B (en) * 2015-10-15 2017-09-19 成都合众达电气技术有限公司 Feeding System of Urban Rail Transit ground short circuit device and its ground short circuit method

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