CN216530613U - Microcomputer protection direct current online backup power supply device of transformer substation - Google Patents

Microcomputer protection direct current online backup power supply device of transformer substation Download PDF

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Publication number
CN216530613U
CN216530613U CN202122618008.2U CN202122618008U CN216530613U CN 216530613 U CN216530613 U CN 216530613U CN 202122618008 U CN202122618008 U CN 202122618008U CN 216530613 U CN216530613 U CN 216530613U
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China
Prior art keywords
power supply
supply device
electrically connected
current
backup power
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CN202122618008.2U
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Chinese (zh)
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钟能荣
钟能森
张志刚
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Shenzhen Hitilin Electronics Co ltd
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Shenzhen Hitilin Electronics Co ltd
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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
    • 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 microcomputer protection direct current online backup power supply device, which belongs to the technical field of transformer substations and comprises a case and is characterized in that: the utility model relates to a current standby power supply device, which is arranged in a case and comprises an isolation relay, a charging module and a dual-power switching module, wherein the isolation relay is electrically connected with a main power supply, the charging module is electrically connected with the isolation relay, the dual-power switching module is respectively electrically connected with the isolation relay and a protection device, and the charging module is electrically connected with a rechargeable battery, and the current standby power supply device has the beneficial effects that: by arranging the direct-current standby power supply device between the main power supply and the protection device, the protection device is not supported by the main power supply to operate for ten minutes when the main power supply fails, so that the protection device can reliably act, correctly record messages and timely upload failure information.

Description

Microcomputer protection direct current online backup power supply device of transformer substation
Technical Field
The utility model relates to the technical field of transformer substations, in particular to a microcomputer protection direct-current online backup power supply device for a transformer substation.
Background
The direct current system is a power source of the transformer substation and is an important component of the transformer substation.
When a direct current system of a transformer substation breaks down, a protection device of the transformer substation possibly fails to operate, override action is performed, the direct current system is opened during the fault, a total station protection device is instantly shielded black, and the protection function is lost.
SUMMERY OF THE UTILITY MODEL
The utility model is provided in view of the above and/or the problems existing in the existing transformer substation microcomputer protection direct current online backup power supply device.
Therefore, the utility model aims to provide a microcomputer protection direct-current online backup power supply device for a transformer substation, which is characterized in that a direct-current backup power supply device is arranged between a main power supply and a protection device, the protection device is not supported by the main power supply to operate for ten minutes when the main power supply fails, the protection device is ensured to reliably act, correctly record messages and timely upload fault information, and the problems that the protection device of the transformer substation possibly rejects and overrides when the direct-current system of the transformer substation fails, the protection device cannot correctly act when the direct-current system of the transformer substation fails, and the fault information cannot be stored and uploaded to a dispatching device at the moment, and the fault information cannot be timely and effectively judged can be solved.
To solve the above technical problem, according to an aspect of the present invention, the present invention provides the following technical solutions:
a microcomputer protection direct current online backup power supply device of a transformer substation comprises: the machine case still includes: and the current standby power supply device is arranged inside the case.
As a preferred scheme of the substation microcomputer protection direct current online backup power supply device, the utility model is characterized in that: the current standby power supply device comprises an isolation relay, a charging module and a dual-power switching module, wherein the isolation relay is electrically connected with a main power supply, the charging module is electrically connected with the isolation relay, and the dual-power switching module is respectively electrically connected with the isolation relay and a protection device.
As a preferred scheme of the substation microcomputer protection direct current online backup power supply device, the utility model is characterized in that: the charging module is electrically connected with a rechargeable storage battery, and the rechargeable storage battery is electrically connected with the dual-power switching module.
As a preferred scheme of the substation microcomputer protection direct current online backup power supply device, the utility model is characterized in that: the rechargeable storage battery is electrically connected with the storage battery capacity test control module, and the storage battery capacity test control module is electrically connected with the high-power load.
As a preferred scheme of the substation microcomputer protection direct current online backup power supply device, the utility model is characterized in that: the LED indicating lamp is installed at the front end of the case and is provided with three groups.
As a preferred scheme of the substation microcomputer protection direct current online backup power supply device, the utility model is characterized in that: the capacity testing device is characterized in that a capacity testing button is installed at the front end of the case, and a testing indicator lamp is installed on the right side of the capacity testing button.
As a preferred scheme of the substation microcomputer protection direct current online backup power supply device, the utility model is characterized in that: and the rear end of the case is respectively provided with a power interface and a capacity test node.
As a preferred scheme of the substation microcomputer protection direct current online backup power supply device, the utility model is characterized in that: the protection device is electrically connected with the current standby power supply device, and the current standby power supply device is arranged between the main power supply and the protection device.
Compared with the prior art:
1. the device is used as a standby power supply of the protection device, and the protection device is not supported by the main power supply to operate for 10 minutes when the main power supply fails, so that the protection device can reliably act, correctly record a message and timely upload failure information;
2. the device can automatically and manually detect the capacity of the standby battery at regular intervals, send signals to the battery with low capacity, remind the operation and inspection personnel to replace the battery, and prevent the function loss of the standby power supply caused by the battery failure;
3. the device adopts a case structure, is convenient to install and simple in wiring, the front panel LED indicator lamp accurately indicates the current running condition, the operation and maintenance are simple, the modular design is realized, and the storage battery is convenient to replace;
4. the device can provide warning nodes for normal operation, abnormal operation and fault of the device, facilitates monitoring of backstage and telecontrol functions, is convenient to install, reliable in operation and simple in maintenance, and provides reliable guarantee for correct action of the protection device of the transformer substation.
Drawings
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a second perspective view of the present invention;
FIG. 3 is a schematic diagram of the present invention;
FIG. 4 is a block diagram of the present invention;
fig. 5 is a circuit diagram of the present invention.
In the figure: the device comprises a main power supply 100, a current standby power supply device 200, an isolation relay 210, a charging module 220, a rechargeable storage battery 230, a dual power supply switching module 240, a storage battery capacity test control module 250, a high-power load 260, a protection device 300, a case 400, an LED indicator lamp 410, a capacity test button 420, a test indicator lamp 430, a power supply interface 440 and a capacity test node 450.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The utility model provides a microcomputer protection direct current online backup power supply device of a transformer substation, which has the advantage of preventing the function loss of a backup power supply caused by battery failure, please refer to fig. 1-5, and comprises a case 400 and further comprises: a current backup power supply device 200;
the current standby power supply device 200 is installed inside the chassis 400, and the current standby power supply device 200 is used as a standby power supply of the protection device 300, so that when the main power supply 100 fails, the protection device 300 is not supported by the main power supply 100 to operate for 10 minutes, and the protection device 300 can reliably act, correctly record messages and timely upload failure information.
The current backup power supply device 200 comprises an isolation relay 210, a charging module 220 and a dual power supply switching module 240, wherein the isolation relay 210 is electrically connected with a main power supply 100, when the main power supply 100 is normal, the isolation relay 210 attracts the main power supply 100, the main power supply 100 charges the charging module 220 at the same time, if the main power supply 100 disappears, the isolation relay 210 returns to disconnect a loop of the current backup power supply device 200 and the main power supply 100, the charging module 220 is electrically connected with the isolation relay 210, the charging module 220 has the function of supplying power to a rechargeable storage battery 230, the dual power supply switching module 240 is respectively electrically connected with the isolation relay 210 and the protection device 300, the charging module 220 is electrically connected with the rechargeable storage battery 230, the rechargeable storage battery 230 has the function of storing after charging and serving as a backup battery, the rechargeable storage battery 230 is electrically connected with the dual power supply switching module 240, after the main power supply 100 is powered off, the rechargeable storage battery 230 has the function of supplying power to the dual power supply switching module 240 and the protection device 300, the action is completed once correctly, the device runs normally for 10 minutes after the action and is used for recording and uploading a device action report, the rechargeable storage battery 230 is electrically connected with the storage battery capacity test control module 250, the storage battery capacity test control module 250 has the function of measuring the capacity of the rechargeable storage battery 230, the storage battery capacity test control module 250 is electrically connected with the high-power load 260, and the high-power load 260 has the function of warning through the test indicator lamp 430 after the storage battery capacity test control module 250 detects that the capacity of the storage battery is abnormal.
The front end of the case 400 is provided with LED indicator lamps 410, the LED indicator lamps 410 are provided with three groups, the three groups of LED indicator lamps 410 are respectively indicator lamps of the main power supply 100, indicator lamps for charging the standby power supply and indicator lamps for working the standby power supply, the current charging states of the main power supply 100 and the standby power supply are displayed through the LED indicator lamps 410, when the main power supply 100 normally works, the indicator lamps of the main power supply 100 and the indicator lamps for charging the standby power supply are lighted, when the main power supply 100 is absent, the indicator lamps for working the standby power supply are lighted for prompting, the front end of the case 400 is provided with a capacity test button 420, the right side of the capacity test button 420 is provided with a test indicator lamp 430, the capacity test button 420 periodically and manually measures the capacity of the rechargeable storage battery 230, the capacity test button 420 normally runs, when a manual capacity test is needed, the right end of the capacity test button 420 is pressed for testing, and the standby power supply loop is isolated, the capacity measurement is carried out, meanwhile, the test indicator light 430 is on, after the test is finished, if the capacity is normal, the test in the test indicator light 430 is extinguished, if the capacity is not qualified, the fault indicator light in the test indicator light 430 is normally on for reminding a transport inspection worker to carry out inspection, the rear end of the case 400 is respectively provided with a power interface 440 and a capacity test node 450, the power interface 440 is used for direct current power input and direct current power output, the direct current power input is connected with the main power supply 100, the direct current power output is connected with the protection device 300, the capacity test node 450 is used for terminal device abnormity and fault signal connection points for receiving signals uploaded by the storage battery capacity test control module 250, the main power supply 100 and the protection device 300 are respectively arranged in the case 400, the current backup power supply device 200 is electrically connected with the main power supply 100, and the main power supply 100 supplies power to the current backup power supply device 200 and the protection device 300 during normal operation, meanwhile, the rechargeable battery 230 is charged, the protection device 300 is electrically connected to the current backup power supply device 200, and the current backup power supply device 200 is installed between the main power supply 100 and the protection device 300, so that the installation is convenient.
When the device is used specifically and in normal operation, the main power supply 100 supplies power to the current backup power supply device 200 and the protection device 300, when the power supply of the main power supply 100 is normal, the isolation relay 210 attracts the main power supply 100, the main power supply 100 charges the charging module 220 and the rechargeable storage battery 230 at the same time, if the main power supply 100 disappears, the isolation relay 210 returns to disconnect a loop between the current backup power supply device 200 and the main power supply 100, the rechargeable storage battery 230 is charged and then stored as a backup battery, after the power supply of the main power supply 100 is cut off, the rechargeable storage battery 230 supplies power to the dual power supply switching module 240 and the protection device 300, the action can be completed once correctly, the electric quantity can be operated normally for 10 minutes after the action of the device, the device is used for recording and uploading a device action report, the capacity of the rechargeable storage battery 230 is measured through the storage battery capacity test control module 250, the LED indicator lamp 410 is installed at the front end of the case 400, the three groups of LED indicator lamps 410 are respectively an indicator lamp of the main power supply 100, an indicator lamp of the standby power supply charging and an indicator lamp of the standby power supply working, the current charging state of the main power supply 100 and the standby power supply is displayed through the LED indicator lamps 410, when the main power supply 100 normally works, the indicator lamp of the main power supply 100 and the indicator lamp of the standby power supply charging are lighted, when the main power supply 100 is absent, the indicator lamp of the standby power supply working is lighted for prompting, the capacity test button 420 periodically measures the capacity of the rechargeable storage battery 230, the capacity test button 420 normally runs, when a manual capacity test is needed, the right end of the capacity test button 420 is pressed for testing, the standby power supply loop is isolated for capacity measurement, meanwhile, the test indicator lamp 430 is lighted, after the test is finished, if the capacity is normal, the test indicator lamp 430 is extinguished in the test indicator lamp 430, if the capacity is unqualified, the fault indicator lamp in the test indicator lamp 430 is normally lighted, the power supply interface 440 and the capacity testing node 450 are respectively installed at the rear end of the case 400, the power supply interface 440 is used for inputting direct-current power and outputting direct-current power, the direct-current power is input to the main power supply 100, the direct-current power is output to the protection device 300, the capacity testing node 450 is used for connecting abnormal and fault signals of a terminal device and is used for receiving the signals uploaded by the storage battery capacity testing control module 250, and the current standby power supply device 200 is installed between the main power supply 100 and the protection device 300.
While the utility model has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the various features of the disclosed embodiments of the utility model may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims (7)

1. The utility model provides an online back-up power supply unit of transformer substation's computer protection direct current, includes quick-witted case (400), its characterized in that still includes: the protection device comprises a current standby power supply device (200), wherein the current standby power supply device (200) is installed inside a case (400), the current standby power supply device (200) comprises an isolation relay (210), a charging module (220) and a dual-power switching module (240), the isolation relay (210) is electrically connected with a main power supply (100), the charging module (220) is electrically connected with the isolation relay (210), and the dual-power switching module (240) is respectively electrically connected with the isolation relay (210) and the protection device (300).
2. The substation microcomputer protection direct-current online backup power supply device according to claim 1, characterized in that the charging module (220) is electrically connected with a rechargeable battery (230), and the rechargeable battery (230) is electrically connected with a dual power supply switching module (240).
3. The substation microcomputer protection direct-current online backup power supply device according to claim 2, characterized in that the rechargeable battery (230) is electrically connected with a battery capacity test control module (250), and the battery capacity test control module (250) is electrically connected with a high-power load (260).
4. The substation microcomputer protection direct-current online backup power supply device according to claim 1, characterized in that three groups of LED indicator lamps (410) are installed at the front end of the case (400), and the three groups of LED indicator lamps (410) are arranged.
5. The substation microcomputer protection direct-current online backup power supply device according to claim 1, characterized in that a capacity test button (420) is installed at the front end of the case (400), and a test indicator lamp (430) is installed on the right side of the capacity test button (420).
6. The substation microcomputer protection direct-current online backup power supply device according to claim 1, characterized in that a power interface (440) and a capacity test node (450) are respectively installed at the rear end of the chassis (400).
7. The substation microcomputer protection direct-current online backup power supply device according to claim 1, characterized in that a main power supply (100) and a protection device (300) are respectively installed inside the cabinet (400), the current backup power supply device (200) is electrically connected with the main power supply (100), the protection device (300) is electrically connected with the current backup power supply device (200), and the current backup power supply device (200) is installed between the main power supply (100) and the protection device (300).
CN202122618008.2U 2021-10-28 2021-10-28 Microcomputer protection direct current online backup power supply device of transformer substation Active CN216530613U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122618008.2U CN216530613U (en) 2021-10-28 2021-10-28 Microcomputer protection direct current online backup power supply device of transformer substation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122618008.2U CN216530613U (en) 2021-10-28 2021-10-28 Microcomputer protection direct current online backup power supply device of transformer substation

Publications (1)

Publication Number Publication Date
CN216530613U true CN216530613U (en) 2022-05-13

Family

ID=81524303

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122618008.2U Active CN216530613U (en) 2021-10-28 2021-10-28 Microcomputer protection direct current online backup power supply device of transformer substation

Country Status (1)

Country Link
CN (1) CN216530613U (en)

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