CN210780207U - Transformer substation's trouble oscillograph power supply unit and trouble oscillograph system - Google Patents
Transformer substation's trouble oscillograph power supply unit and trouble oscillograph system Download PDFInfo
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- CN210780207U CN210780207U CN201921782539.1U CN201921782539U CN210780207U CN 210780207 U CN210780207 U CN 210780207U CN 201921782539 U CN201921782539 U CN 201921782539U CN 210780207 U CN210780207 U CN 210780207U
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- 238000009114 investigational therapy Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Abstract
The utility model discloses a transformer substation's trouble oscillograph power supply unit and trouble oscillograph system, include: the power supply device comprises a shell, a power supply unit and a power supply unit, wherein the side wall of the shell is respectively provided with an input interface and an output interface, and two direct current power supply channels which are respectively a main power supply channel and a standby power supply channel are formed between the input interface and the output interface in the shell; a power supply line led out from the input interface is directly connected to the change-over switch, and the change-over switch is connected with the output interface so as to form a main power supply channel; the input interface leads out another power supply line which is connected with the first inverter, the UPS module, the rectifier and the change-over switch in sequence, thereby forming a standby power supply channel; the utility model discloses guaranteed the trouble oscillograph still can carry out the normal record ripples of certain time even when the direct current system trouble in the station, guaranteed the power supply continuity of trouble oscillograph, improved electric power system safe operation level, will have good society and economic benefits.
Description
Technical Field
The utility model belongs to the technical field of trouble oscillograph, concretely relates to trouble oscillograph power supply unit of transformer substation and trouble oscillograph system.
Background
The current wave recording device power supply in the direct current transformer substation is taken from a direct current system in the transformer substation, wherein two sets of direct current systems are configured in a 220kV transformer substation, and 1 set of direct current system is generally configured in a 110kV transformer substation. When a direct current system in a station has a fault, such as an open circuit of a storage battery, a fault-changing trip for the station, a short circuit of a direct current bus and the like, the direct current system in the whole station cannot provide normal power supply, and at the moment, a wave recording device cannot record waves normally when power is lost, so that the equipment trip and accident investigation are difficult.
Therefore, in view of the above situation, no method for conveniently and rapidly solving the problem of uninterrupted operation of the wave recorder of the dc substation exists in the current published documents. If a power supply system of the uninterrupted fault recorder of the direct current transformer substation can be developed, normal wave recording can still be carried out for a certain time when the direct current system in the substation fails, and good social and economic benefits can be achieved.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the deficiencies in the prior art, the technical problem who solves is: the transformer substation fault recorder power supply device and the fault recorder system are provided, wherein when the direct current system in a transformer substation has a fault, the direct current system still supplies power normally.
In order to solve the technical problem, the utility model discloses a technical scheme be: a transformer substation fault recorder power supply device comprises: the power supply device comprises a shell, a power supply unit and a power supply unit, wherein the side wall of the shell is respectively provided with an input interface and an output interface, and two direct current power supply channels which are respectively a main power supply channel and a standby power supply channel are formed between the input interface and the output interface in the shell; a power supply line led out from the input interface is directly connected to the change-over switch, and the change-over switch is connected with the output interface so as to form a main power supply channel; and the other power supply line led out from the input interface is sequentially connected with the first inverter, the UPS power module, the rectifier and the change-over switch, so that a standby power supply channel is formed.
Preferably, the UPS power module includes a charging circuit, a battery pack, and a second inverter, wherein an input terminal of the charging circuit is connected to an output terminal of the first inverter, an output terminal of the charging circuit is connected to an input terminal of the second inverter through the battery pack, and an output terminal of the second inverter is connected to an input terminal of the rectifier.
Preferably, the change-over switch is a switchable circuit switch, and switching is performed according to whether the current amount of the measurement circuit meets the requirement.
Preferably, the first inverter is used for converting the input DC220V into AC220V for output.
Preferably, the charging circuit is configured to convert an input AC220V voltage into a DC24V and then charge the battery pack, the battery pack output voltage is DC24V, and the second inverter is configured to convert an input DC24V voltage into an AC220V and output the AC 220V.
Preferably, the rectifier is used to convert the input AC220V into DC220V for output.
The utility model provides a but uninterrupted power supply's transformer substation trouble oscillograph system, includes trouble oscillograph and as above transformer substation trouble oscillograph power supply unit, power supply unit input interface passes through the power supply line and connects the DC power supply screen, the DC power supply screen is connected in transformer substation's direct current system, power supply unit output interface passes through the power supply line and connects the input of trouble oscillograph.
Compared with the prior art, the utility model following beneficial effect has:
the utility model relates to a transformer substation's trouble oscillograph power supply unit and trouble oscillograph system, when the direct current power supply screen supplies power normally, change over switch can detect that there is normal electric current to pass through, then supplies power through main power supply channel, and direct current 220V voltage supplies power for the trouble oscillograph through direct current power supply screen, change over switch; meanwhile, the UPS power supply module in the standby power supply channel is charged through the direct-current power supply screen to store electric energy; when a direct current system in the station fails and the direct current power supply screen cannot supply power, the change-over switch detects that normal current does not flow, namely, the change-over switch automatically switches over, so that the standby power supply channel supplies power for the fault recorder; the utility model discloses guaranteed the trouble oscillograph still can carry out the normal record ripples of certain time even when the direct current system trouble in the station, guaranteed the power supply continuity of trouble oscillograph, improved electric power system safe operation level, will have good society and economic benefits.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a power supply device of a transformer substation fault recorder provided in a first embodiment of the present invention;
fig. 2 is a circuit structure diagram of a transformer substation fault oscillograph power supply device according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a substation fault recording system capable of supplying power uninterruptedly according to a first embodiment of the present invention;
in the figure: the device comprises a shell 1, an input interface 11, an output interface 12, a change-over switch 2, a first inverter 3, a UPS power module 4, a charging circuit 41, a battery pack 42, a second inverter 43, a rectifier 5 and a fault recorder 6.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 is the embodiment of the utility model provides a pair of transformer substation's trouble oscillograph power supply unit's that provides structural schematic diagram, as shown in fig. 1, a transformer substation's trouble oscillograph power supply unit, include: the power supply device comprises a shell 1, wherein an input interface 11 and an output interface 12 are respectively arranged on the side wall of the shell 1, and two direct current power supply channels which are respectively a main power supply channel and a standby power supply channel are formed in the shell 1 between the input interface 11 and the output interface 12; a power supply line led out from the input interface is directly connected to the change-over switch 2, and the change-over switch 2 is connected with the output interface so as to form a main power supply channel; the input interface draws another way power supply line and connects gradually first dc-to-ac converter 3, UPS power module 4, rectifier 5 and change over switch 2 to form reserve power supply channel, output interface 12 passes through the power supply line and links to each other with the input of trouble oscillograph.
When the fault recorder is used, when the direct-current power supply panel supplies power normally, the change-over switch 2 can detect that normal current passes through, and then the power is supplied through the main power supply channel, namely, the direct-current 220V voltage supplies power to the fault recorder through the direct-current power supply panel and the change-over switch 2; meanwhile, the UPS power supply module 4 in the standby power supply channel is charged through the direct-current power supply screen to store electric energy; when the direct current system in the station fails and the direct current power supply screen cannot supply power, the change-over switch 2 detects that normal current does not flow, namely, the normal current is automatically switched, so that the standby power supply channel supplies power; the utility model discloses guaranteed the normal record ripples that can still carry out the certain time even when the direct current system trouble in the station of trouble record ripples ware, will have good society and economic benefits.
Further, as shown in fig. 2, the UPS power module 4 includes a charging circuit 41, a battery pack 42, and a second inverter 43, wherein an input of the charging circuit 41 is connected to an output of the first inverter 3, an output of the charging circuit 41 is connected to an input of the second inverter 43 through the battery pack 42, and an output of the second inverter 43 is connected to an input of the rectifier 5.
Furthermore, the change-over switch 2 is a switchable circuit switch, and can also be a relay, and the change-over switch is switched according to whether the current amount of the measuring circuit meets the requirement, wherein the model of the change-over switch 2 is HRS4-S-DC 5V; the first inverter 3 is used for converting input DC220V into AC220V for output; the charging circuit 41 is configured to convert an input AC220V voltage into a DC24V and then charge the battery pack 42, the output voltage of the battery pack 42 is DC24V, and the second inverter 43 is configured to convert an input DC24V voltage into an AC220V and output the AC 220V; the rectifier 5 is used to convert the input AC220V into DC220V for output.
Specifically, when the power supply of the direct current power supply panel is normal, the transfer switch 2 can detect that normal current passes through, the third connection terminal in the transfer switch 2 is switched to be connected with the fourth connection terminal, the main power supply channel supplies power, meanwhile, the UPS power supply module 4 in the standby power supply channel charges through the direct current power supply panel to store electric energy, the first inverter 3 inverts the DC220V voltage output by the direct current power supply panel into AC220V alternating current, and then the voltage is reduced and rectified into DC24V voltage through the charging circuit 41 to charge the battery pack 42, and the charging mode is flexible and controllable; when the direct current system in the station has a fault, the change-over switch 2 does not detect that normal current passes through, and a third connecting terminal in the change-over switch 2 is switched to be connected with a fifth connecting terminal and is supplied with power by a standby power supply channel; the second inverter 43 inverts and boosts the DC24V voltage to AC220V AC, and then rectifies the output DC220V voltage to the transfer switch 2 through the rectifier 5, so as to provide power for the fault recorder.
Fig. 3 is the embodiment of the utility model provides a but transformer substation's trouble oscillograph system of uninterrupted power supply's structural schematic diagram, as shown in fig. 3, but uninterrupted power supply's transformer substation's trouble oscillograph system, including trouble oscillograph 6 and as above the transformer substation in trouble oscillograph power supply unit, power supply unit input interface 11 passes through the power supply line and connects the dc power supply screen, the dc power supply screen is connected in transformer substation's dc system, power supply unit output interface 12 passes through the power supply line and connects trouble oscillograph 6's input.
When the fault recorder is used, when the direct-current power supply screen supplies power normally, the change-over switch 2 can detect that normal current passes through, and then direct-current 220V voltage supplies power to the fault recorder through the direct-current power supply screen and the main power supply channel; while supplying power, the UPS power module 4 charges through the direct-current power supply screen and stores electric energy; when a direct current system in the station fails and the direct current power supply screen cannot supply power, the change-over switch 2 detects that normal current does not flow, namely, the normal current is automatically switched, and the power is supplied to the fault recorder through the standby power supply channel; the utility model discloses guaranteed the normal record ripples that can still carry out the certain time even when the direct current system trouble in the station of trouble record ripples ware, will have good society and economic benefits.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. A transformer substation fault recorder power supply device comprises: casing (1), casing (1) lateral wall is provided with input interface (11) and output interface (12) respectively, its characterized in that: two direct current power supply channels are formed between the input interface (11) and the output interface (12) in the shell (1), and are respectively a main power supply channel and a standby power supply channel; a power supply line led out from the input interface is directly connected to the change-over switch (2), and the change-over switch (2) is connected with the output interface so as to form a main power supply channel; the other power supply line led out from the input interface is sequentially connected with the first inverter (3), the UPS power module (4), the rectifier (5) and the change-over switch (2), so that a standby power supply channel is formed.
2. The substation fault recorder power supply device of claim 1, characterized in that: the UPS power module (4) comprises a charging circuit (41), a battery pack (42) and a second inverter (43), wherein the input end of the charging circuit (41) is connected with the output end of the first inverter (3), the output end of the charging circuit (41) is connected with the input end of the second inverter (43) through the battery pack (42), and the output end of the second inverter (43) is connected with the input end of the rectifier (5).
3. The substation fault recorder power supply device of claim 1, characterized in that: the change-over switch (2) is a switchable circuit switch, and is switched according to whether the current magnitude of the measuring circuit meets the requirement.
4. The substation fault recorder power supply device of claim 1, characterized in that: the first inverter (3) is used for converting input DC220V into AC220V for output.
5. The substation fault recorder power supply device of claim 2, wherein: the charging circuit (41) is used for converting an input AC220V voltage into a DC24V voltage and then charging the battery pack (42), the output voltage of the battery pack (42) is DC24V, and the second inverter (43) is used for converting an input DC24V voltage into an AC220V voltage and outputting the AC220V voltage.
6. The substation fault recorder power supply device of claim 1, characterized in that: the rectifier (5) is used for converting input AC220V into DC220V for output.
7. The utility model provides a but uninterrupted power supply's transformer substation trouble record ripples system which characterized in that: including fault recorder (6) and the transformer substation fault recorder power supply unit of any one of claims 1-6, power supply unit's the input interface (11) connects the direct current power supply screen through the power supply line, direct current power supply screen connects in transformer substation direct current system, power supply unit's the output interface (12) passes through the power supply line and connects the input of fault recorder (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921782539.1U CN210780207U (en) | 2019-10-23 | 2019-10-23 | Transformer substation's trouble oscillograph power supply unit and trouble oscillograph system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921782539.1U CN210780207U (en) | 2019-10-23 | 2019-10-23 | Transformer substation's trouble oscillograph power supply unit and trouble oscillograph system |
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| Publication Number | Publication Date |
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| CN210780207U true CN210780207U (en) | 2020-06-16 |
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| CN201921782539.1U Active CN210780207U (en) | 2019-10-23 | 2019-10-23 | Transformer substation's trouble oscillograph power supply unit and trouble oscillograph system |
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|---|---|
| CN (1) | CN210780207U (en) |
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- 2019-10-23 CN CN201921782539.1U patent/CN210780207U/en active Active
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