CN201105656Y - Locomotive grounding protection device - Google Patents
Locomotive grounding protection device Download PDFInfo
- Publication number
- CN201105656Y CN201105656Y CNU2007200877038U CN200720087703U CN201105656Y CN 201105656 Y CN201105656 Y CN 201105656Y CN U2007200877038 U CNU2007200877038 U CN U2007200877038U CN 200720087703 U CN200720087703 U CN 200720087703U CN 201105656 Y CN201105656 Y CN 201105656Y
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- China
- Prior art keywords
- locomotive
- relay
- high voltage
- contact
- protective device
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- Expired - Fee Related
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- Electric Propulsion And Braking For Vehicles (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The utility model discloses a locomotive grounding protection device, comprising a locomotive mechanical chamber door, a pedal positive stop, signal control switches on one or more positions in a high voltage chamber; the output terminal of the signal control switch is connected with a grounding contactor and an acousto-optic alarm relay in parallel; the main control contact of the grounding contactor is connected with the input terminal of the main loop of the locomotive and the other terminal thereof is grounded; the contact of the acousto-optic relay is connected in series with an acousto-optic alarm device. The locomotive grounding protection device has simple structure and convenient installation. The locomotive grounding protection device can emit acousto-optic alarm signal when the operators enter the high voltage chamber and go to a ceiling for maintenance, closes the grounding contactor which is connected into the wire-in main loop and leads the high voltage wire to be directly grounded. The switch of a traction state can be fast tripped so as to cut off the high voltage power source; if the high voltage power source is cut off and then can be taken as the grounding protection when the high voltage power source is transmitted mistakenly, thus realizing the personal safety protection and thoroughly avoiding the personal injury and death accidents.
Description
Technical field
The utility model belongs to the locomotive fender guard, is specifically related to a kind of locomotive earth protective device.
Background technology
The ZG150-1500 type locomotive is made up of electric part, mechanics and air duct three parts.Electrical appliance part comprises that traction motor, auxiliary motor group, traction electrical apparatus and subsidiary loop are formed.Function is that the electric energy with contact system is converted into the needed mechanical energy of tractor-trailer train.Simultaneously, electrical appliance part also will be realized the control of locomotive.At present, electric locomotive has two to be subjected to electric system, and the one, just bending and be subjected to electric system; The 2nd, other bow is subjected to electric system, it is indoor that the high tension supply of two high-pressure system acceptance enters locomotive high-voltage, and for the electricity consumption of full overall height pressure, current high pressure locomotive aligns bow and is subjected to electric system to carry out comprehensive security control, but be subjected to electric system just to control one one to the side bow, reason is when cylinder pressure is lower than 0.4Mpa, and other bow control system is just out of control, can't make other bow leave the high voltage supply net, cause the high pressure casualty accident.
Summary of the invention
The purpose of this utility model is to provide that a kind of high pressure locomotive prevents from just to bend, other bow is subjected to electric system not break away from the high voltage supply net; cause high tension supply to enter the locomotive high-voltage chamber; prevent to contact the locomotive earth protective device of high-tension current, to address the above problem locomotive office operation personnel.
The technical solution of the utility model is: the locomotive earth protective device, it comprises locomotive Machine Room door, foot-operated spacing, the Signal-controlled switch on one or more positions in the door of hyperbaric chamber, the mouth of Signal-controlled switch earthing contactor in parallel, sound and light alarm relay; The master control contact of earthing contactor is connected the input end of locomotive major loop, other end ground connection; Connect with acoustic-optic alarm in the contact of sound and light alarm relay.
The master control contact of described earthing contactor is connected with the input end of locomotive major loop high speed switch.
This device is simple, easy for installation.When operating personal enters locomotive high-voltage chamber and the maintenance of last car roof, when opening the door or move stretcher, can make the travel switch closure, send the sound and light alarm signal immediately, and the earthing contactor of receiving the inlet wire major loop is closed a floodgate, with the direct ground connection of high tension cord.At this moment; if high tension supply is not cut off the power supply, then, earthing contactor make Traction Station switch fast trip disconnect high tension supply, ground protection when can be used as the misdelivery high tension supply if high tension supply has been cut off the power supply because of closing a floodgate; thereby realize safety guard-safeguard, the generation of thoroughly stifled determine personal injury and accident to the person.
Description of drawings
Accompanying drawing locomotive earth protective device circuit structure diagram.
The specific embodiment
As shown in drawings,
Present embodiment adopts two-way Machine Room gate control switch 1ST, 2ST, and two-way is ridden spacing master cock 1SF, 2SF, 4 tunnel hyperbaric chamber gate control switch 1ST1,1ST2,1ST3,1ST4.Wherein two-way Machine Room gate control switch 1ST, 2ST mouth connect time-delay closing relay and acoustic-optic alarm HA1, HA2, and two-way Machine Room gate control switch 1ST, 2ST mouth are connected with the mouth of the contact of sound and light alarm relay K A.
Two-way is ridden spacing master cock 1SF, 2SF, and the mouth of 4 tunnel hyperbaric chamber gate control switch 1ST1,1ST2,1ST3,1ST4 connects the KT1 of slug relay in parallel; Indicator lamp HL; Earthing contactor adopts two windings ground contactless switch KM1, KM2 here; Sound and light alarm relay K A.The contact KT1 of the KT1 of slug relay connects with earthing contactor KM1, KM2.
The master control contact KN of earthing contactor is connected with the input end of locomotive major loop high speed switch; Other end ground connection.
Defence program is: when operating personal enters the maintenance place, as above stretcher is put down or is entered the hyperbaric chamber door and is opened during the locomotive car roof, and its travel switch all can be closed, as long as a travel switch closure is arranged, will send the sound and light alarm signal immediately.And earthing contactor makes Traction Station switch fast trip disconnect the power supply of supply network automatically with the direct ground connection of high pressure behind time-delay 2-3 S (adjustable), realizes the protection to the people.
Line control routine is as follows: as foot-operated switch 1SF, 2SF or hyperbaric chamber door limit switch 1ST1-2, as long as a switch connection is arranged among the 2ST1-2, connect such as 1SF, then the DC48V power supply through the QF sky open → 71# line → 1SF closing point → 73# line → KA gets, it is closed that KA is made war, and makes combined aural and visual alarm get the electric sound and light signal that sends.While 73# → KT gets electric, and behind the time-delay 2-3S (adjustable), earthing contactor KM (2 parallel connections) coil gets electric, and the main contact closure is with the direct ground connection of high tension cord.Other travel switch: 2SF, 1ST1-2,2ST1-2 analogize.
3. when entering the Machine Room, the back travel switch that opens the door is connected alarm loop, sends the sound and light alarm signal, and alert is taken care.
Operation program is: 1ST or 2ST travel switch are made war and are connected when open the door in the Machine Room, and the DC48V power supply is connected the acousto-optic device and sent alerting signal through QF-71# line → 1ST or 2ST closing point → 77# line → KT2 close point → 79# line.
4. after the combined aural and visual alarm signal sends, can stop the sound and light alarm signal automatically by KT2 time-delay 60S time (adjustable).
5. control power supply and be incorporated into " in the earth protective device power control box " by DC48V in the I end switch box, this box is installed in high pressure locomotive I end, establishes inspection switch, time relay, intermediate relay and signal lamp in the box.
6. earthing contactor is installed in II end hyperbaric chamber door Right Inboard by limit, locomotive aisle.
7. combined aural and visual alarm is totally 2, is installed in metope top, I, II end corridor, two respectively.
8. control line prolongs the colligation of former installation circuit, and I, II end joint connects with 20 core aviation sockets (head), and locomotive when separation pulls up plug and can realize the locomotive separation from socket.
Claims (6)
1, a kind of locomotive earth protective device, it comprises locomotive Machine Room door, foot-operated spacing, the Signal-controlled switch on one or more positions in the door of hyperbaric chamber is characterized in that mouth earthing contactor in parallel, the sound and light alarm relay of Signal-controlled switch; The master control contact of earthing contactor is connected the input end of locomotive major loop, other end ground connection; Connect with acoustic-optic alarm in the contact of sound and light alarm relay.
2, locomotive earth protective device according to claim 1 is characterized in that the contact of earthing contactor series connection slug relay, earthing contactor slug relay in parallel.
3, locomotive earth protective device according to claim 1 is characterized in that Signal-controlled switch comprises two-way Machine Room gate control switch, and two-way is ridden spacing master cock, 4 tunnel hyperbaric chamber gate control switches.
4, locomotive earth protective device according to claim 1 is characterized in that acoustic-optic alarm time-delay closing relay in parallel, connects with the electric shock of time-delay closing relay.
5, as locomotive earth protective device as described in the claim 3, it is characterized in that the mouth of two-way Machine Room gate control switch is connected with the mouth of the contact of sound and light alarm relay.
6, locomotive earth protective device according to claim 1 is characterized in that the master control contact of earthing contactor is connected with the input end of locomotive major loop high speed switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200877038U CN201105656Y (en) | 2007-10-25 | 2007-10-25 | Locomotive grounding protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200877038U CN201105656Y (en) | 2007-10-25 | 2007-10-25 | Locomotive grounding protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201105656Y true CN201105656Y (en) | 2008-08-27 |
Family
ID=39957449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200877038U Expired - Fee Related CN201105656Y (en) | 2007-10-25 | 2007-10-25 | Locomotive grounding protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201105656Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134314A (en) * | 2014-07-31 | 2014-11-05 | 国家电网公司 | Safety access door |
| CN106564381A (en) * | 2015-12-25 | 2017-04-19 | 中车大连机车车辆有限公司 | Electric locomotive key interlocking alarm device |
-
2007
- 2007-10-25 CN CNU2007200877038U patent/CN201105656Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134314A (en) * | 2014-07-31 | 2014-11-05 | 国家电网公司 | Safety access door |
| CN106564381A (en) * | 2015-12-25 | 2017-04-19 | 中车大连机车车辆有限公司 | Electric locomotive key interlocking alarm device |
| CN106564381B (en) * | 2015-12-25 | 2019-02-01 | 中车大连机车车辆有限公司 | Electric locomotive key linkage alarm device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080827 Termination date: 20131025 |