CN206379775U - Converter Station Valve cooling system remote reset system - Google Patents
Converter Station Valve cooling system remote reset system Download PDFInfo
- Publication number
- CN206379775U CN206379775U CN201621346396.6U CN201621346396U CN206379775U CN 206379775 U CN206379775 U CN 206379775U CN 201621346396 U CN201621346396 U CN 201621346396U CN 206379775 U CN206379775 U CN 206379775U
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- valve cooling
- cooling system
- converter station
- relay
- station valve
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Abstract
The utility model discloses a kind of Converter Station Valve cooling system remote reset system, it includes the switch key and relay that connect Converter Station Valve cooling system controller, and the switch key is connected with relay；Wherein, the relay is provided with stationary contact, the first movable contact and the second movable contact, and one end of the reset key of stationary contact and current conversion station is connected, and the other end of the reset key of the second movable contact and current conversion station is connected.The Converter Station Valve cooling system remote reset system architecture is simple, after cooling tower stoppage in transit, by using remote switch button involution valve cooling system controller immediately, response speed is substantially increased, human hand is also a saving, the risk of the device damage caused by operational error is reduced.
Description
Technical field
The utility model and technical field of HVDC transmission, more particularly to a kind of Converter Station Valve cooling system are remotely multiple
Position system.
Background technology
In HVDC transmission system, the station power supply of current conversion station is by frequency converter to the cooling in converter valve cooling system
Tower fan electromotor is powered, in the case of frequency converter failure, can manual switching to bypass air switch power.When station power supply appearance event
Barrier, overtension or it is too low when, or cooling tower fan electromotor there is overload flow because of self reason when, all may
Frequency converter in loop is caused to produce fault alarm.Frequency converter will send a signal to converter valve cooling system after producing fault alarm
Controller, controller receives that after the signal its transmission to the startup control signal of frequency converter will set to 0, so that frequency converter stops
Power supply, causes cooling tower to be stopped transport.In DC transmission system oepration at full load, cooling tower will cause inner cold water temperature to rise after stopping transport
(in a few minutes), HVDC transmission system monopole will be caused to stop transport during water temperature over-high.
Therefore, in station power supply or cooling tower fan electromotor failure, frequency converter produces fault alarm, after cooling tower is stopped transport,
Should be taken immediate steps the fan electromotor operation of recovery cooling tower, it is to avoid therefore HVDC transmission system stops transport.
At present, in straight-flow system current conversion station, fault alarm is produced in frequency converter, after cooling tower is stopped transport, the measure taken is：
Operator on duty goes to valve cooling chamber scene to carry out involution to controller, it is sent to the startup control signal of frequency converter and puts again
1, recover frequency converter and cooling tower operation.
However, there is certain defect in above-mentioned way：Valve cooling tower frequency converter transient fault (can be recovered by involution controller
Operation) need operator on duty to go to valve cooling chamber hand resetting controller, take that longer (time is very crucial, a few minutes inner high voltage
The possible therefore monopole of DC transmission system is stopped transport), it is necessary to increase human hand.
Prior art has much room for improvement and improved.
Utility model content
In view of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of Converter Station Valve cooling system long-range
Reset system, it is intended to, it is necessary to which staff goes to valve cooling chamber multiple manually when solving existing valve cooling tower frequency converter transient fault
Return controller, the problem of taking long.
In order to achieve the above object, the utility model takes following technical scheme：
A kind of Converter Station Valve cooling system remote reset system, wherein, the Converter Station Valve cooling system remote reset system bag
The switch key and relay of connection Converter Station Valve cooling system controller are included, the switch key is connected with relay；Wherein,
The relay is provided with stationary contact, the first movable contact and the second movable contact, and one end of the reset key of stationary contact and current conversion station connects
Connect, the other end connection of the reset key of the second movable contact and current conversion station.
Described Converter Station Valve cooling system remote reset system, wherein, when the switch key is closed, relay it is quiet
Contact is connected with the second movable contact.
Described Converter Station Valve cooling system remote reset system, wherein, the switch key is located in current conversion station Central Control Room.
Described Converter Station Valve cooling system remote reset system, wherein, in addition to one be used for when Converter Station Valve cooling system it is remote
The alarm device of fault warning is sent during Cheng Fuwei system short-circuits, the alarm device connects Converter Station Valve cooling system remote reset
System.
Described Converter Station Valve cooling system remote reset system, wherein, the relay is light coupling relay.
Compared to prior art, the Converter Station Valve cooling system remote reset system architecture that the utility model is provided is simple,
After cooling tower is stopped transport, by using remote switch button involution valve cooling system controller immediately, response speed is substantially increased, also
Human hand has been saved, the risk of the device damage caused by operational error is reduced.
Brief description of the drawings
The schematic diagram of the preferred embodiment for the Converter Station Valve cooling system remote reset system that Fig. 1 provides for the utility model.
Converter Station Valve cooling system remote reset System relays electrical equipment and the company of reset key that Fig. 2 provides for the utility model
Connect schematic diagram.
Embodiment
In view of in place of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide a kind of Converter Station Valve cooling system
Remote reset system.To make the purpose of this utility model, technical scheme and effect clearer, clear and definite, referring to the drawings simultaneously
The utility model is further described for embodiment.It should be appreciated that specific embodiment described herein is only to explain
The utility model, is not used to limit the utility model.
Refer to Fig. 1 and Fig. 2, the Converter Station Valve cooling system remote reset system that Fig. 1 provides for the utility model it is preferable
The schematic diagram of embodiment.As illustrated, the Converter Station Valve cooling system remote reset system includes connection Converter Station Valve cooling system
The switch key S1 being serially connected and relay K1 of controller 100.Specifically, the switch key S1 is remote switch
Button, it, which is arranged on, facilitates operating personnel to go the very first time in valve cooling tower frequency converter transient fault at the position of operation.When
When remote switch button S1 is connected, relay K1 is also connected, so as to play with producing phase by the reset key in lower valve cooling chamber
Same effect.
Relay is a kind of electric control device, is when the change of input quantity (energizing quantity) reaches regulation requirement, electric
Controlled volume is set to occur a kind of electrical equipment of predetermined Spline smoothing in output circuit.It has control system (also known as input circuit) and
By the interactive relationship between control system (also known as output loop).In the control circuit for being commonly used to automation, it is actually
It is the one kind " automatic switch " for going to control high current running with low current.Therefore play in circuit automatically adjust, safeguard protection, turn
Change the effect such as circuit.
In the present embodiment, the relay is provided with stationary contact 10, the first movable contact 20 and the second movable contact 30, wherein,
Stationary contact 10 is connected with the reset key S2 of current conversion station one end, and the second movable contact 20 is another with the reset key S2's of current conversion station
End connection.Specifically, when the switch key S1 is closed, the stationary contact 10 of relay is connected with the second movable contact 20.
Further, in order to prevent the adhesion of involution button or the short circuit of distant place involution loop, signal prison is carried out to slot signal
Depending on.Described Converter Station Valve cooling system remote reset system, which also includes one, to be used for when Converter Station Valve cooling system remote reset system is short
The alarm device of fault warning is sent during road, the alarm device connects Converter Station Valve cooling system remote reset system.It is general next
Say, when the adhesion of involution button or short-circuit distant place involution loop, more than 10 seconds, monitoring system will produce event inside valve cooling system
Operator on duty is reminded in barrier alarm.
Further, the switch key is located in current conversion station Central Control Room.So as to when the instantaneously event of valve cooling tower frequency converter
When barrier (can be resumed operation by involution controller) needs operator on duty's progress reset operation, it is only necessary to press switch key, i.e.,
Can, it is to avoid because of the device damage caused by operational error the problem of.
In summary, the Converter Station Valve cooling system remote reset system that the utility model is provided, it includes connecting current conversion station
The switch key and relay of valve cooling system controller, the switch key are connected with relay；Wherein, the relay is set
There are stationary contact, the first movable contact and the second movable contact, one end of the reset key of stationary contact and current conversion station is connected, the second movable contact
It is connected with the other end of the reset key of current conversion station.The Converter Station Valve cooling system remote reset system architecture is simple, in cooling
After tower is stopped transport, by using remote switch button involution valve cooling system controller immediately, response speed is substantially increased, is also saved
Human hand, reduces the risk of the device damage caused by operational error.
It is understood that for those of ordinary skills, can according to the technical solution of the utility model and
The design of its utility model is subject to equivalent substitution or change, and all these changes or replacement should all belong to appended by the utility model
Scope of the claims.
Claims (5)
1. a kind of Converter Station Valve cooling system remote reset system, it is characterised in that the Converter Station Valve cooling system remote reset system
System includes the switch key and relay for connecting Converter Station Valve cooling system controller, and the switch key is connected with relay；
Wherein, the relay is provided with stationary contact, the first movable contact and the second movable contact, the one of the reset key of stationary contact and current conversion station
The other end of the reset key of end connection, the second movable contact and current conversion station is connected.
2. Converter Station Valve cooling system remote reset system according to claim 1, it is characterised in that when the switch key
During closure, the stationary contact of relay and the second movable contact are connected.
3. Converter Station Valve cooling system remote reset system according to claim 1, it is characterised in that the switch key position
In in current conversion station Central Control Room.
4. Converter Station Valve cooling system remote reset system according to claim 3, it is characterised in that be also used to work as including one
The alarm device of fault warning is sent during Converter Station Valve cooling system remote reset system short-circuit, the alarm device connects current conversion station
Valve cooling system remote reset system.
5. Converter Station Valve cooling system remote reset system according to claim 1, it is characterised in that the relay is light
Coupling relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621346396.6U CN206379775U (en) | 2016-12-09 | 2016-12-09 | Converter Station Valve cooling system remote reset system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621346396.6U CN206379775U (en) | 2016-12-09 | 2016-12-09 | Converter Station Valve cooling system remote reset system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206379775U true CN206379775U (en) | 2017-08-04 |
Family
ID=59406511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621346396.6U Active CN206379775U (en) | 2016-12-09 | 2016-12-09 | Converter Station Valve cooling system remote reset system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206379775U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063495A (en) * | 2018-01-17 | 2018-05-22 | 国网山西省电力公司检修分公司 | Transforming plant protecting signal automatic resetting device |
-
2016
- 2016-12-09 CN CN201621346396.6U patent/CN206379775U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108063495A (en) * | 2018-01-17 | 2018-05-22 | 国网山西省电力公司检修分公司 | Transforming plant protecting signal automatic resetting device |
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