CN106608204B - Electric discharge device - Google Patents
Electric discharge device Download PDFInfo
- Publication number
- CN106608204B CN106608204B CN201510707835.5A CN201510707835A CN106608204B CN 106608204 B CN106608204 B CN 106608204B CN 201510707835 A CN201510707835 A CN 201510707835A CN 106608204 B CN106608204 B CN 106608204B
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- China
- Prior art keywords
- voltage
- relay
- discharge
- electric discharge
- circuit
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M3/00—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
-
- 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
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
Abstract
The present invention provides a kind of electric discharge device, including high-voltage relay GJ, discharge resistance R and control unit；The tip side discharged in series resistance R of high-voltage relay GJ forms high voltage discharge circuit, one end of the high voltage discharge circuit is configured to be electrically connected to contact net or conductor rail, the other end of the high voltage discharge circuit is configured to be electrically connected to return current rail, and the coil of high-voltage relay GJ connects to form control circuit with control unit.Electric discharge device of the invention, using the combination of high-voltage relay and discharge resistance, safe discharge operation can be realized in the case where contact net or conductor rail electrical verification are " having electricity ", solve security hidden trouble present in the operation of railway traffic contact network (or conductor rail) ground connection.
Description
Technical field
The present invention relates to City Rail Transit System field more particularly to the electric discharge devices of a kind of contact net or conductor rail.
Background technique
Urban track traffic generally uses direct current 750V or 1500V contact net (or conductor rail) to power.
When contact net (or conductor rail) and its peripheral equipment carry out repair and maintenance after having a power failure, in order to guarantee operating personnel's person
Safety, needs to take the safety measure of " ground connection ", is shorted contact net and return current rail with ground line or grounding switch, prevents suddenly
Incoming call causes personal injury.If accidentally contact net and return current rail short circuit with normal working voltage will form short circuit, caused
Contact net equipment damage, and jeopardize operator's personal safety.To avoid short circuit, contact net power failure operation need to be implemented power failure,
Electrical verification, electric discharge, the operating process of ground connection.
After contact net has a power failure, residual voltage is still had on contact net.When residual voltage is higher, electrical verification result can " be had
Electricity ", in this case, site operation personnel is difficult to judge on contact net to be residual voltage or normal voltage.Contact net insulation
Horizontal higher, residual voltage is higher, and residual voltage decaying is slower, to become " no electricity " until electrical verification result, may wait tens
Minute or longer time.
During contact net and its peripheral equipment interruption maintenance are typically scheduled at the stoppage in transit of subway night, the activity duration only has several
Hour, the process that " no electricity " is decayed to avoid contact with net residual voltage expends the too many time, and operator can run shape according to scene
Condition is directly shorted between contact net and return current rail with ground line in the case where artificial judgment contact network source is already off
Electric discharge executes ground connection operation later.This operation has security risk, rashly will be with normal work when artificial judgment is made mistakes
The contact net of voltage will cause short circuit to return current rail short circuit, cause equipment damage, and jeopardize operator's personal safety.
Summary of the invention
In view of the status of the prior art, the purpose of the present invention is to provide a kind of electric discharge device, using high-voltage relay and
The combination of discharge resistance can realize safe discharge operation, solve in the case where contact net or conductor rail electrical verification are " having electricity "
Determined railway traffic contact network (or conductor rail) ground connection operation present in security hidden trouble.To achieve the above object, this hair
Bright technical solution is as follows:
A kind of electric discharge device, comprising:
High-voltage relay GJ, discharge resistance R and control unit；
The tip side series connection discharge resistance R of the high-voltage relay GJ forms high voltage discharge circuit, and the height presses
One end of circuit is configured to be electrically connected to contact net or conductor rail, and the other end of the high voltage discharge circuit is configured to electricity
It is connected to return current rail, the coil of the high-voltage relay GJ connects to form control circuit with the control unit；
The electric discharge device further includes signal relay XJ in one of the embodiments,；
The coils from parallel connection of coils of the coil of the signal relay XJ and the high-voltage relay GJ are arranged in the control circuit
In, the tip side of the signal relay XJ is connected in discharge condition feed circuit.
The electric discharge device further includes insulation shell in one of the embodiments, the high-voltage relay GJ, described
Discharge resistance R and the signal relay XJ are encapsulated in the insulation shell；It the interface of the control circuit and described puts
The contact of electricity condition feed circuit is all made of connecting terminal extraction, and the high voltage discharge circuit is drawn using high-voltage line.
Be additionally provided with indicator light in the discharge condition feed circuit in one of the embodiments, the indicator light with
The coils from parallel connection of coils of the signal relay XJ.
The electric discharge device further includes temperature detect switch (TDS) RJ in one of the embodiments, the temperature detect switch (TDS) RJ and institute
The coil for stating high-voltage relay GJ is arranged in series, and the temp probe of the temperature detect switch (TDS) RJ is arranged near the discharge resistance R.
The control unit is manual switch, remote control contact or automatic control contact in one of the embodiments,.
The beneficial effects of the present invention are:
Electric discharge device of the invention can be in contact net or conductor rail using the combination of high-voltage relay and discharge resistance
In the case that electrical verification is " having electricity ", safe discharge operation is realized, solve railway traffic contact network (or conductor rail) ground connection behaviour
Security hidden trouble present in work.If contact net or conductor rail voltage are residual voltage, electric discharge device can be by residual voltage
Quick-discharging shortens the operating time；If contact net or conductor rail misplace electricity with normal working voltage, electric discharge device will not shape
At short circuit.It can cooperate with direct current electricity-detection grounding device, realize remote control electrical verification, remote control electric discharge, remote control ground connection, discharge for contact net
Operation provides safety, a distant place and controllable operational means on the spot.Provide a distant place and on the spot controllable manipulator
Section, shortens ground connection working hour, can reserve the more time for site maintenance operations.It has filled up industry blank, has extensive
Application space.Electric discharge device of the invention can also be used for the discharge operation before conventional ground wire hitching.
Detailed description of the invention
Fig. 1 is the circuit diagram of the electric discharge device of one embodiment of the invention.
Symbol description in figure:
DC+: electric discharge device controls positive pole
DC-: electric discharge device controls power cathode
GJ: high-voltage relay
XJ: signal relay
RJ: temperature detect switch (TDS)
R: discharge resistance
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to the accompanying drawings and embodiments
Electric discharge device of the invention is further elaborated.It should be appreciated that specific embodiment described herein is only used for explaining
The present invention is not intended to limit the present invention.
Referring to Fig.1, the electric discharge device of one embodiment of the invention, including high-voltage relay GJ, discharge resistance R and signal relay
Device XJ.
The tip side discharged in series resistance R of high-voltage relay GJ forms high voltage discharge circuit 3, one end of high voltage discharge circuit
It is configured to be electrically connected to contact net or conductor rail, the other end of high voltage discharge circuit is configured to be electrically connected to return current rail, high
The coil of potential relay GJ connects to form control circuit 1 with control unit.
The coil of signal relay XJ and the coils from parallel connection of coils of high-voltage relay GJ are arranged in control circuit, signal relay
The tip side of XJ is connected in discharge condition feed circuit 2.
Wherein, the control unit can be manual switch, remote control contact or automatic control contact.Discharge resistance R is high pressure
Resistance.
High-voltage relay contact and high-tension resistive are composed in series high voltage discharge circuit, access contact net or conductor rail and reflux
Between rail, by the on-off of high-voltage relay control high voltage discharge circuit, safety, controllable discharging function are realized.High-voltage relay
By the external control unit starting contact control, the control unit can access remote control contact, also can access hand on the spot
Dynamic discharge button contact, cooperates to related automatic control equipment, can also realize automatic discharging.
When the coil of control unit control high-voltage relay GJ connects electric discharge device control positive pole DC+ and electric discharge device
When controlling power cathode DC-, the coil of high-voltage relay GJ and signal relay XJ are charged, and two relays act, electric discharge
Device enters discharge condition；After electric discharge, control unit is by the coil blackout of high-voltage relay GJ, high-voltage relay GJ and letter
Number equal power loss of relay XJ coil, two relays return, and electric discharge device exits discharge condition.
When high-voltage relay tip side (contact) is closed, discharge resistance is accessed between contact net or conductor rail and return current rail
R forms high voltage discharge circuit, and the residual voltage of contact net or conductor rail is discharged.When high-voltage relay contact disconnects, by electrion
Circuit disconnects.The tip side (contact) of high-voltage relay has enough resistance to voltage levels, operates normally in contact net or conductor rail
Do not puncture under the conditions of voltage and abnormal overvoltage etc..If contact net or conductor rail have normal working voltage, electric discharge device
When being activated electric discharge, because discharge resistance R has metering function, short circuit not will cause.
To monitor electric discharge device state, a signal relay, coil and high-voltage relay coils from parallel connection of coils, high pressure are set
When the actuating of relay, signal relay is also moved at the same time, and issues discharging action signal.Signal relay XJ is able to reflect electric discharge dress
Set action state.Preferably, be additionally provided with indicator light in the discharge condition feed circuit, the indicator light and the signal after
The coils from parallel connection of coils of electric appliance XJ.Indicator light is set, can be intuitive to see the working condition of signal relay XJ, then judge height
The working condition of potential relay GJ.Certainly, the indicator light can also be arranged in series with the coil of the signal relay XJ.
As an embodiment, electric discharge device further includes temperature detect switch (TDS) RJ, temperature detect switch (TDS) RJ and high-voltage relay GJ
Coil be arranged in series, the temp probe of temperature detect switch (TDS) RJ is arranged near discharge resistance R.If contact net with normal voltage and
When electric discharge device is in discharge condition for a long time, discharge resistance temperature rises, and when temperature reaches setting value, reflects discharge resistance
The temperature detect switch (TDS) RJ of temperature is disconnected, and cuts off charge/discharge control circuit, high-voltage relay GJ and signal relay XJ are returned, by high pressure
Relay tip cutoff high discharge circuit.
As an embodiment, electric discharge device further includes insulation shell, high-voltage relay GJ, discharge resistance R and letter
Number relay XJ is encapsulated in the insulation shell.Insulation shell is preferably made of fire proofing.The interface of control circuit
It is all made of connecting terminal with the contact of discharge condition feed circuit to draw, high voltage discharge circuit is drawn using high-voltage line.In figure,
N1, n2 are electric discharge device control circuit contact, and n3, n4 are discharge condition feed circuit contact, and n5 is contact net high-voltage connection, are connect
To contact net circuit, n6 return current rail high-voltage connection is connected to return current rail circuit.
The electric discharge device of above embodiments, using the combination of high-voltage relay, signal relay and discharge resistance, Ke Yi
In the case that contact net or conductor rail electrical verification are " having electricity ", realize safe discharge operation, solve railway traffic contact network (or
Conductor rail) it is grounded security hidden trouble present in operation.If contact net or conductor rail voltage are residual voltage, electric discharge device can
To shorten the operating time for residual voltage quick-discharging；If contact net or conductor rail misplace electricity with normal working voltage, put
Electric installation not will form short circuit.It can cooperate with direct current electricity-detection grounding device, realize remote control electrical verification, remote control electric discharge, remote control ground connection,
A safe, distant place and on the spot controllable operational means are provided for contact net discharge operation, shortens ground connection working hour, is existing
Field upkeep operation reserves the more time.It has filled up industry blank, has a wide range of applications space.Electric discharge device of the invention
Discharge operation before can be used for conventional ground wire hitching.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
Limitations on the scope of the patent of the present invention therefore cannot be interpreted as.It should be pointed out that for those of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to guarantor of the invention
Protect range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (6)
1. a kind of electric discharge device characterized by comprising
High-voltage relay GJ, discharge resistance R and control unit；
The tip side series connection discharge resistance R of the high-voltage relay GJ forms high voltage discharge circuit, the electrion electricity
The one end on road is configured to be electrically connected to contact net or conductor rail, and the other end of the high voltage discharge circuit is configured to be electrically connected
To return current rail, the coil of the high-voltage relay GJ connects to form control circuit with the control unit；
The high-voltage relay GJ is by the external control unit starting contact control, when the control unit controls the high pressure
When the coil of relay GJ is powered, the tip side closure of the high-voltage relay GJ, between contact net or conductor rail and return current rail
The tip side for accessing the high-voltage relay GJ is connected the high voltage discharge circuit that the discharge resistance R formed, the electric discharge
Device enters discharge condition；After electric discharge, the external control unit controls the coil blackout of the high-voltage relay GJ, institute
It states high-voltage relay GJ power loss and returns, the electric discharge device exits discharge condition.
2. electric discharge device according to claim 1, it is characterised in that:
It further include signal relay XJ；
The coils from parallel connection of coils of the coil of the signal relay XJ and the high-voltage relay GJ are arranged in the control circuit, institute
The tip side for stating signal relay XJ is connected in discharge condition feed circuit.
3. electric discharge device according to claim 2, it is characterised in that:
It further include insulation shell, the high-voltage relay GJ, the discharge resistance R and the signal relay XJ are encapsulated in institute
It states in insulation shell；The contact of the interface of the control circuit and the discharge condition feed circuit is all made of connecting terminal and draws
Out, the high voltage discharge circuit is drawn using high-voltage line.
4. electric discharge device according to claim 2, it is characterised in that:
It is additionally provided with indicator light in the discharge condition feed circuit, the coil of the indicator light and the signal relay XJ are simultaneously
Connection.
5. electric discharge device according to claim 1-4, it is characterised in that:
It further include temperature detect switch (TDS) RJ, the coil of the temperature detect switch (TDS) RJ and the high-voltage relay GJ are arranged in series, the temperature control
The temp probe of switch RJ is arranged near the discharge resistance R.
6. electric discharge device according to claim 1-4, it is characterised in that:
The control unit is manual switch, remote control contact or automatic control contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510707835.5A CN106608204B (en) | 2015-10-26 | 2015-10-26 | Electric discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510707835.5A CN106608204B (en) | 2015-10-26 | 2015-10-26 | Electric discharge device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106608204A CN106608204A (en) | 2017-05-03 |
| CN106608204B true CN106608204B (en) | 2019-04-02 |
Family
ID=58614204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510707835.5A Active CN106608204B (en) | 2015-10-26 | 2015-10-26 | Electric discharge device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106608204B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110927434A (en) * | 2020-02-13 | 2020-03-27 | 天津美腾科技股份有限公司 | Discharge test circuit and discharge test device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000082402A (en) * | 1998-09-04 | 2000-03-21 | Toshiba Corp | Aging device for cathode-ray tube |
| CN2653837Y (en) * | 2003-10-16 | 2004-11-03 | 陈仰波 | Automatic quick discharge device for high voltage residual electricity |
| JP5064547B2 (en) * | 2010-09-15 | 2012-10-31 | 豊田合成株式会社 | Discharge device for vehicle |
| CN203352161U (en) * | 2013-07-11 | 2013-12-18 | 曲阜嘉信电气有限公司 | Special-purpose electric discharge device for frequency converter |
| CN204065371U (en) * | 2014-09-03 | 2014-12-31 | 大唐林州热电有限责任公司 | A kind of frequency converter Battery Discharging Device |
| CN204696683U (en) * | 2015-06-18 | 2015-10-07 | 王晓博 | Direct-current traction power supply contact line residual voltage restraining device |
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2015
- 2015-10-26 CN CN201510707835.5A patent/CN106608204B/en active Active
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| Publication number | Publication date |
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| CN106608204A (en) | 2017-05-03 |
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