CN106364423A - Locomotive electric heating glass protective earthing device - Google Patents
Locomotive electric heating glass protective earthing device Download PDFInfo
- Publication number
- CN106364423A CN106364423A CN201610919163.9A CN201610919163A CN106364423A CN 106364423 A CN106364423 A CN 106364423A CN 201610919163 A CN201610919163 A CN 201610919163A CN 106364423 A CN106364423 A CN 106364423A
- Authority
- CN
- China
- Prior art keywords
- glass
- electric heating
- heating glass
- electric
- isolating transformer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
Provided is a locomotive electric heating glass protective earthing device. A primary side of a main transformer of the device is connected with an overhead contact system through a pantograph. A first branch and a second branch are connected in parallel and connected to a secondary side of the main transformer through a fuse. In the first branch, a first change-over switch and a first overload automatic switch are connected with the primary side of a first single-phase isolation transformer in series, and first electric heating glass and second electric heating glass are connected with the secondary side of the first single-phase isolation transformer in series. In the second branch, a second change-over switch and a second overload automatic switch are connected with the primary side of a second single-phase isolation transformer in series, and third electric heating glass and fourth electric heating glass are connected with the secondary side of the second single-phase isolation transformer in series. By means of the locomotive electric heating glass protective earthing device, the situations that an overload automatic switch is triggered to act due to vibration, dampness and the like, a breaker switch is switched off, the heating function of a front window fails, consequently, water mist on the glass cannot be removed, and the outlook sight of a trainman is severely affected can be avoided.
Description
Technical field
The present invention relates to the single-phase isolating transformer in a kind of design in locomotive electric heating glass circuit,
Background technology
Electric ehated glass line-to-ground is one of common fault of track traffic.This fault leads to the cohesion of water smoke, and impact is taken advantage of
Business person hope, the main cause of generation is long-term the exposing to the sun and rain of locomotive electric ehated glass, can make unavoidably stripper rubber occur aging,
The phenomenons such as slight crack, degumming, the indoor/outdoor temperature-difference in winter also can make the condensation vapor of glass surface become water droplet, and water droplet can be along electric heating
The slight crack of glass capsulation rubber is seeped into the root of outside line, is overlapped on locomotive because locomotive vibration leads to lead root to come off
On body, and cause electric ehated glass that earth fault occurs.Solution mainly prevents the cracking of fluid sealant from coming off, with clamping
Lead is fixed by device, and it is crucial that improving circuit design.
Content of the invention
The present invention is directed to the deficiency of existing electric ehated glass circuit design, proposes a kind of single-phase by installing additional in subsidiary loop
The Curve guide impeller of isolating transformer, prevents the ground connection triggering overload automatic switch action of dimension side loop, and killer switch disconnects.
A kind of locomotive electric heating glass protection grounding device, including main transformer, fuse, tie point and the second branch road,
Tie point includes the first single-phase isolating transformer, the first electric ehated glass, the second electric ehated glass, the first permutator and the first mistake
Carry automatic switch, the second branch road includes the second single-phase isolating transformer, the 3rd electric ehated glass, the 4th electric ehated glass, the second conversion
Switch and the second overload automatic switch,
Main transformer former limit is connected with contact net by pantograph, tie point and the second branch circuit parallel connection through overcurrent fuse
It is connected to main transformer secondary,
In tie point, the first permutator and first transships automatic switch and the first single-phase isolating transformer former limit string
Connection, the first electric ehated glass and the second electric ehated glass are connected with the first single-phase isolating transformer secondary；
In second branch road, the second permutator and second transships automatic switch and the second single-phase isolating transformer former limit string
Connection, the 3rd electric ehated glass and the 4th electric ehated glass are connected with the second single-phase isolating transformer secondary.
Compared with prior art, the beneficial effect that the present invention possesses:
Single-phase isolating transformer primary side winding is identical with time number of turn of side winding, and transformation ratio is 1: 1, when load side generation is short
The short circuit current of system during the accident of road, can be limited, when load-side occurs single-phase earthing, primary circuit can be avoided to be grounded,
There is the effect of protection circuit.The special buffer action of single-phase isolating transformer can be used, when isolating transformer load side is sent out
During raw ground connection, do not result in whole associated circuitry ground connection, thus playing the effect of protection circuit loop.The present invention can prevent because
The triggering overload automatic switch action of the reasons such as vibration, humidity, killer switch disconnects, and front window heating function lost efficacy, and led to glass
On water smoke cannot eliminate, have a strong impact on crew hope.
Brief description
Fig. 1 is locomotive electrical heating glass circuit schematic diagram of the present invention.
Fig. 2 is locomotive electrical heating glass protection grounded circuit schematic diagram in example of the present invention.
Fig. 3 is locomotive electrically heated glass integrated circuit schematic diagram in example of the present invention.
Specific embodiment
Below by example, technical scheme is further elaborated.
A kind of locomotive electric heating glass protection grounding device, including main transformer, fuse, tie point and the second branch road,
Tie point includes the first single-phase isolating transformer, the first electric ehated glass, the second electric ehated glass, the first permutator and the first mistake
Carry automatic switch, the second branch road includes the second single-phase isolating transformer, the 3rd electric ehated glass, the 4th electric ehated glass, the second conversion
Switch and the second overload automatic switch,
Main transformer former limit is connected with contact net by pantograph, tie point and the second branch circuit parallel connection through overcurrent fuse
It is connected to main transformer secondary,
In tie point, the first permutator and first transships automatic switch and the first single-phase isolating transformer former limit string
Connection, the first electric ehated glass and the second electric ehated glass are connected with the first single-phase isolating transformer secondary；
In second branch road, the second permutator and second transships automatic switch and the second single-phase isolating transformer former limit string
Connection, the 3rd electric ehated glass and the 4th electric ehated glass are connected with the second single-phase isolating transformer secondary.
The rated power of the first single-phase isolating transformer and the second single-phase isolating transformer is 700w, and rated voltage is
Ac220v, is separately mounted to the two ends of locomotive.First electric ehated glass, the second electric ehated glass, the 3rd electric ehated glass and the 4th electric heating
The watt level of glass is equal, is 350w, and rated voltage is ac110v.First electric ehated glass and the second electric ehated glass series connection peace
It is contained in one end of locomotive, the 3rd electric ehated glass and the 4th electric ehated glass are installed in series in the other end of locomotive, tie point and
Two branch roads are located at the two ends of locomotive respectively, and are connected in parallel in subsidiary loop.
When locomotive electric heating glass circuit does not install protective earthing device additional, circuit theory diagrams are as shown in figure 1, work as subsidiary loop
Occur ground connection when, heatable fuser can be led to switch off, and installed protective earthing device additional, circuit theory diagrams as shown in Fig. 2
Just can avoid the occurrence of above-mentioned, the fault rate reducing electric ehated glass is it is ensured that locomotive safety running.
Claims (1)
1. a kind of locomotive electric heating glass protection grounding device it is characterised in that include main transformer, fuse, tie point and
Second branch road, tie point include the first single-phase isolating transformer, the first electric ehated glass, the second electric ehated glass, first conversion open
Close and the first overload automatic switch, the second branch road includes the second single-phase isolating transformer, the 3rd electric ehated glass, the 4th electric heating glass
Glass, the second permutator and the second overload automatic switch,
Main transformer former limit is connected with contact net by pantograph, and tie point and the second branch circuit parallel connection simultaneously connect through overcurrent fuse
In main transformer secondary,
In tie point, the first permutator and the first overload automatic switch are connected with the first single-phase isolating transformer former limit, the
One electric ehated glass and the second electric ehated glass are connected with the first single-phase isolating transformer secondary；
In second branch road, the second permutator and the second overload automatic switch are connected with the second single-phase isolating transformer former limit, the
Three electric ehated glasses and the 4th electric ehated glass are connected with the second single-phase isolating transformer secondary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610919163.9A CN106364423A (en) | 2016-10-20 | 2016-10-20 | Locomotive electric heating glass protective earthing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610919163.9A CN106364423A (en) | 2016-10-20 | 2016-10-20 | Locomotive electric heating glass protective earthing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106364423A true CN106364423A (en) | 2017-02-01 |
Family
ID=57895686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610919163.9A Pending CN106364423A (en) | 2016-10-20 | 2016-10-20 | Locomotive electric heating glass protective earthing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106364423A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2319261Y (en) * | 1997-09-26 | 1999-05-19 | 宝山钢铁(集团)公司 | Automotive electric heating device |
| US6130645A (en) * | 1998-01-14 | 2000-10-10 | Fuba Automotive Gmbh & Co. Kg | Combination wide band antenna and heating element on a window of a vehicle |
| CN201328002Y (en) * | 2008-12-25 | 2009-10-14 | 成都运达创新科技有限公司 | Overvoltage protection system for disconnecting switch used in locomotive depot |
| CN101638087A (en) * | 2009-03-13 | 2010-02-03 | 中国科学院广州能源研究所 | Glass electrical heating controller for locomotive |
| CN103770799A (en) * | 2014-02-24 | 2014-05-07 | 中国建筑材料科学研究总院 | High-speed locomotive windshield and preparation method thereof |
-
2016
- 2016-10-20 CN CN201610919163.9A patent/CN106364423A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2319261Y (en) * | 1997-09-26 | 1999-05-19 | 宝山钢铁(集团)公司 | Automotive electric heating device |
| US6130645A (en) * | 1998-01-14 | 2000-10-10 | Fuba Automotive Gmbh & Co. Kg | Combination wide band antenna and heating element on a window of a vehicle |
| CN201328002Y (en) * | 2008-12-25 | 2009-10-14 | 成都运达创新科技有限公司 | Overvoltage protection system for disconnecting switch used in locomotive depot |
| CN101638087A (en) * | 2009-03-13 | 2010-02-03 | 中国科学院广州能源研究所 | Glass electrical heating controller for locomotive |
| CN103770799A (en) * | 2014-02-24 | 2014-05-07 | 中国建筑材料科学研究总院 | High-speed locomotive windshield and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 杨志华: "《SS3型电力机车电热玻璃供电保护的改进措施》", 《电气时代》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170201 |
|
| RJ01 | Rejection of invention patent application after publication |