CN106608204A - Discharging device - Google Patents
Discharging device Download PDFInfo
- Publication number
- CN106608204A CN106608204A CN201510707835.5A CN201510707835A CN106608204A CN 106608204 A CN106608204 A CN 106608204A CN 201510707835 A CN201510707835 A CN 201510707835A CN 106608204 A CN106608204 A CN 106608204A
- Authority
- CN
- China
- Prior art keywords
- voltage
- circuit
- relay
- discharge
- contact
- 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.)
- Granted
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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 invention provides a discharging device. The discharging device comprises a high-voltage relay GJ, a discharging resistor R and a control part, wherein a contact end of the high-voltage relay GJ is connected in series with the discharging resistor R to form a high-voltage discharging circuit; one end of the high-voltage discharging circuit is electrically connected to an overhead contact net or a contact rail, and the other end of the high-voltage discharging circuit is electrically connected to a reflowing rail; a coil of the high-voltage relay GJ is connected in series with the control part to form a control circuit. According to the discharging device, the high-voltage relay and the discharging resistor are combined; the discharging can be safely carried out when that overhead contact net or the contact rail is electrified is tested, and thus the problem of potential risk in the grounding operation of a rail transit overhead contact line (or contact rail) can be solved.
Description
Technical field
The present invention relates to City Rail Transit System field, more particularly to the electric discharge of a kind of contact net or conductor rail
Device.
Background technology
Urban track traffic is typically powered using direct current 750V or 1500V contact net (or conductor rail).
When contact net (or conductor rail) and its peripheral equipment carry out repair and maintenance after having a power failure, in order to ensure operation
Personnel's personal safety, needs take the safety measure of " ground connection ", with earth lead or grounding switch by contact net
With return current rail short circuit, prevent incoming call suddenly from causing personnel to injure.If by mistake by connecing with normal working voltage
Touch net and return current rail short circuit, short circuit can be formed, cause contact net equipment to damage, and jeopardize operator's person
Safety.To avoid short circuit, contact net power failure operation from needing to perform power failure, electrical verification, electric discharge, the operation of ground connection
Process.
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 " having electricity ", in this case, site operation personnel is difficult to judge to be residual voltage or just on contact net
Normal voltage.Contact net dielectric level is higher, and residual voltage is higher, and residual voltage decay is slower, be when testing
Electric result becomes " without electricity ", may wait dozens of minutes 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 is only
There are several hours, the process that " without electricity " is decayed to avoid contact with net residual voltage expends too many time, operator
Member can be according to operation condition in site, in the case where artificial judgment contact network source is already off, directly with connecing
Ground wire short circuit electric discharge between contact net and return current rail, performs afterwards ground connection operation.This operation has safety
Hidden danger, when artificial judgment is slipped up, rashly can make the contact net with normal working voltage to return current rail short circuit
Into short circuit, device damage is caused, and jeopardize operator's personal safety.
The content of the invention
In view of the present situation of prior art, it is an object of the invention to provide a kind of electric discharge device, using high pressure after
The combination of electrical equipment and discharge resistance, can be real in the case where contact net or conductor rail electrical verification are " having electricity "
Now safe discharge operation, solves and pacifies present in railway traffic contact network (or conductor rail) ground connection operation
Full potential problem.For achieving the above object, technical scheme is as follows：
A kind of electric discharge device, including：
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, described
One end of high voltage discharge circuit is configured to be electrically connected to contact net or conductor rail, the high voltage discharge circuit
The other end is configured to be electrically connected to return current rail, the coil of the high-voltage relay GJ and the control unit string
Connection forms control circuit；
Wherein in one embodiment, described electric discharge device also includes signal relay XJ；
The coil of the signal relay XJ is arranged on the control with the coils from parallel connection of coils of the high-voltage relay GJ
In circuit processed, the tip side of the signal relay XJ is connected in discharge condition feedback circuit.
Wherein in one embodiment, described electric discharge device also includes insulation shell, the high-voltage relay
GJ, the discharge resistance R and the signal relay XJ are encapsulated in the insulation shell；The control
The contact of the interface of circuit and the discharge condition feedback circuit is drawn using binding post, and the height is pressed
Circuit is drawn using high-voltage line.
Wherein in one embodiment, display lamp, the finger are additionally provided with the discharge condition feedback circuit
Show the coils from parallel connection of coils of lamp and the signal relay XJ.
Wherein in one embodiment, described electric discharge device also includes temperature detect switch (TDS) RJ, the temperature detect switch (TDS)
RJ is arranged in series with the coil of the high-voltage relay GJ, and the temperature probe of the temperature detect switch (TDS) RJ is arranged on
Near the discharge resistance R.
Wherein in one embodiment, the control unit is that hand switch, remote control contact or automatically control connects
Point.
The invention has the beneficial effects as follows：
The electric discharge device of the present invention, using the combination of high-voltage relay and discharge resistance, can in contact net or
In the case that conductor rail electrical verification is " having electricity ", the discharge operation of safety is realized, solve track traffic contact
Security hidden trouble present in net (or conductor rail) ground connection operation.If contact net or conductor rail voltage are residual
Stay voltage, electric discharge device residual voltage quick-discharging can be shortened into the operating time；If contact net or contact
When rail misplaces electricity with normal working voltage, electric discharge device will not form short circuit.It can be grounded with direct current electrical verification
Device coordinates, and realizes remote control electrical verification, remote control electric discharge, remote control ground connection, and for contact net discharge operation safety is provided
, a distant place and controllable operational means on the spot.There is provided a distant place and on the spot controllable operational means,
Ground connection working hour is shortened, the more time can be reserved for site examining and repairing operation.It has filled up industry blank,
Have a wide range of applications space.The electric discharge device of the present invention can also be used for the behaviour of the electric discharge before conventional ground wire hitching
Make.
Description of the drawings
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 source
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 that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing and reality
Apply example to be further elaborated the electric discharge device of the present invention.It should be appreciated that described herein concrete
Embodiment is only used for explaining the present invention, is not intended to limit the present invention.
With reference to Fig. 1, the electric discharge device of one embodiment of the invention, including high-voltage relay GJ, discharge resistance R
With signal relay XJ.
The tip side discharged in series resistance R of high-voltage relay GJ forms high voltage discharge circuit 3, electrion electricity
The one end on road is configured to be electrically connected to contact net or conductor rail, and the other end of high voltage discharge circuit is configured to
Return current rail is electrically connected to, the coil of high-voltage relay GJ connects to form control circuit 1 with control unit.
The coil of signal relay XJ is arranged in control circuit with the coils from parallel connection of coils of high-voltage relay GJ, is believed
The tip side of number relay XJ is connected in discharge condition feedback circuit 2.
Wherein, the control unit can be hand switch, remote control contact or automatically control contact.Discharge resistance R
For high-tension resistive.
High-voltage relay contact and high-tension resistive are composed in series high voltage discharge circuit, access contact net or conductor rail
Between return current rail, the break-make of high voltage discharge circuit is controlled by high-voltage relay, realize safe, controllable putting
Electricity Functional.High-voltage relay starts contact control by the outside control unit, and the control unit can access
Remote control contact, also can access discharge button contact manual on the spot, coordinate to related automatic controlling device, also
Automatic discharging can be realized.
When the coil that control unit controls high-voltage relay GJ connects electric discharge device control positive source DC+ and puts
During electric installation control power cathode DC-, the coil of high-voltage relay GJ and signal relay XJ is powered, and two
The equal action of relay, electric discharge device enters discharge condition；After electric discharge terminates, control unit is by high-voltage relay
The coil blackout of GJ, high-voltage relay GJ and the equal dead electricity of signal relay XJ coils, two relays are returned,
Electric discharge device exits discharge condition.
When high-voltage relay tip side (contact) is closed, access between contact net or conductor rail and return current rail
Discharge resistance R, forms high voltage discharge circuit, and the residual voltage of contact net or conductor rail is discharged.High-voltage relay connects
When point disconnects, high voltage discharge circuit is disconnected.The tip side (contact) of high-voltage relay has enough resistance to
Voltage levels, do not puncture under the conditions of contact net or conductor rail normal operating voltage and abnormal overvoltage etc..Such as
Fruit contact net or conductor rail carry normal working voltage, when electric discharge device is activated electric discharge, because of discharge resistance R
With metering function, short circuit is not resulted in.
To monitor electric discharge device state, a signal relay is set, its coil is with high-voltage relay coil simultaneously
Connection, during high-voltage relay action, signal relay also action simultaneously sends discharging action signal.Signal after
Electrical equipment XJ can reflect electric discharge device operating state.Preferably, also set up in the discharge condition feedback circuit
There is a display lamp, the coils from parallel connection of coils of the display lamp and the signal relay XJ.Display lamp, Neng Gouzhi are set
The working condition that signal relay XJ is seen on ground is seen, the working condition of high-voltage relay GJ is judged then.
Certainly, the display lamp also can be arranged in series with the coil of the signal relay XJ.
Used as a kind of embodiment, electric discharge device also includes temperature detect switch (TDS) RJ, temperature detect switch (TDS) RJ and high pressure
The coil of relay GJ is arranged in series, and the temperature probe of temperature detect switch (TDS) RJ is arranged near discharge resistance R.
If contact net with normal voltage and electric discharge device long-time in discharge condition when, discharge resistance temperature rise,
When temperature reaches setting value, the temperature detect switch (TDS) RJ for reflecting discharge resistance temperature disconnects, cut-out control of discharge electricity
Road, high-voltage relay GJ and signal relay XJ are returned, and are discharged by high-voltage relay contact cutoff high
Circuit.
Used as a kind of embodiment, electric discharge device also includes insulation shell, high-voltage relay GJ, electric discharge electricity
Resistance R and signal relay XJ is encapsulated in the insulation shell.Insulation shell preferably adopts fire proofing system
Into.The interface of control circuit and the contact of discharge condition feedback circuit are drawn using binding post, and height is pressed
Circuit is drawn using high-voltage line.In figure, n1, n2 are electric discharge device control circuit contact, and n3, n4 are to put
Electricity condition feedback circuit contact, n5 is contact net high-voltage connection, is connected to contact net loop, n6 return current rail high pressure
Lead, is connected to return current rail loop.
The electric discharge device of above example, using the combination of high-voltage relay, signal relay and discharge resistance,
The discharge operation of safety can be realized in the case where contact net or conductor rail electrical verification are " having electricity ", be solved
Security hidden trouble present in railway traffic contact network (or conductor rail) ground connection operation.If contact net or
Conductor rail voltage is residual voltage, and residual voltage quick-discharging can be shortened the operating time by electric discharge device；
If contact net or conductor rail misplace electricity with normal working voltage, electric discharge device will not form short circuit.It can
Coordinate with direct current electricity-detection grounding device, realize remote control electrical verification, remote control electric discharge, remote control ground connection, be that contact net is put
It is electrically operated that safety, a distant place and controllable operational means on the spot are provided, shorten ground connection working hour, be
Site examining and repairing operation reserves the more time.It has filled up industry blank, has a wide range of applications space.This
Bright electric discharge device can also be used for the discharge operation before conventional ground wire hitching.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more concrete and detailed
Therefore carefully, but the restriction to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for this
For the those of ordinary skill in field, without departing from the inventive concept of the premise, some changes can also be made
Shape and improvement, these belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with
Claims are defined.
Claims (6)
1. a kind of electric discharge device, it is characterised in that include：
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, described
One end of high voltage discharge circuit is configured to be electrically connected to contact net or conductor rail, the high voltage discharge circuit
The other end is configured to be electrically connected to return current rail, the coil of the high-voltage relay GJ and the control unit string
Connection forms control circuit.
2. electric discharge device according to claim 1, it is characterised in that：
Also include signal relay XJ；
The coil of the signal relay XJ is arranged on the control with the coils from parallel connection of coils of the high-voltage relay GJ
In circuit processed, the tip side of the signal relay XJ is connected in discharge condition feedback circuit.
3. electric discharge device according to claim 2, it is characterised in that：
Also include insulation shell, the high-voltage relay GJ, the discharge resistance R and the signal relay
XJ is encapsulated in the insulation shell；The interface of the control circuit and the discharge condition feedback circuit
Contact is drawn using binding post, and the high voltage discharge circuit is drawn using high-voltage line.
4. electric discharge device according to claim 2, it is characterised in that：
Display lamp, the display lamp and the signal relay are additionally provided with the discharge condition feedback circuit
The coils from parallel connection of coils of XJ.
5. the electric discharge device according to any one of claim 1-4, it is characterised in that：
Also include that temperature detect switch (TDS) RJ, the temperature detect switch (TDS) RJ connect with the coil of the high-voltage relay GJ and set
Put, the temperature probe of the temperature detect switch (TDS) RJ is arranged near the discharge resistance R.
6. the electric discharge device according to any one of claim 1-4, it is characterised in that：
The control unit is hand switch, remote control contact or automatically controls 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 true CN106608204A (en) | 2017-05-03 |
| CN106608204B 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) |
Cited By (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 |
Citations (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 |
| CN102398555A (en) * | 2010-09-15 | 2012-04-04 | 丰田合成株式会社 | 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 |
-
2015
- 2015-10-26 CN CN201510707835.5A patent/CN106608204B/en active Active
Patent Citations (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 |
| CN102398555A (en) * | 2010-09-15 | 2012-04-04 | 丰田合成株式会社 | 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 |
Cited By (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 |
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| Publication number | Publication date |
|---|---|
| CN106608204B (en) | 2019-04-02 |
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