CN203674697U - Over-discharge automatic switching device for power substation storage battery set - Google Patents
Over-discharge automatic switching device for power substation storage battery set Download PDFInfo
- Publication number
- CN203674697U CN203674697U CN201320863667.5U CN201320863667U CN203674697U CN 203674697 U CN203674697 U CN 203674697U CN 201320863667 U CN201320863667 U CN 201320863667U CN 203674697 U CN203674697 U CN 203674697U
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- storage battery
- fuse
- batteries
- battery set
- contactor
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Abstract
The utility model discloses an over-discharge automatic switching device for a power substation storage battery set. The over-discharge automatic switching device comprises a high frequency switch power source module, a storage battery set, a contactor, a voltage relay, a non-return diode and fuses, wherein the high frequency switch power source module and an anode of the storage battery set are connected with a bus+HM, the high frequency switch power source module and a cathode of the storage battery set are connected with a bus-M, a coil of the contactor is connected with a contact point of the voltage relay in series and then is connected with a coil of the voltage relay in parallel, two ends of the circuit are respectively connected with a first fuse and a second fuse in series and is then connected with the storage battery set in parallel, a contact point of the contactor is connected with the non-return diode in parallel and is connected with the anode of the storage battery set, and the anode and the cathode of the storage battery set are respectively connected with a third fuse and a fourth fuse. The over-discharge automatic switching device can realize discharge protection for a maintenance-free storage battery, has a simple structure and is convenient and reliable to use.
Description
Technical field
The utility model related to be put from cutting apparatus, is applicable to the protection of maintenance free cell in the change DC power system used of electric substation.
Background technology
At present, for the maintenance free cell of the change DC power supply used of electric substation, often because AC power is abnormal or charging device fault causes the electric discharge of storage battery accident, but the fatal shortcoming of maintenance free cell can not be discharged exactly lower than final voltage.Once deep discharge, the life-span of storage battery will shorten.More battery tension can not be put into zero volt, that will cause whole Battery pack to be scrapped.
Utility model content
For the problems referred to above, the utility model provides a kind of electric substation batteries to put from cutting apparatus with crossing, and maintenance free cell is realized to discharge prevention, simple in structure, easy to use and reliable.
The technical solution of the utility model is as follows:
A kind of electric substation batteries is put from cutting apparatus with crossing, and comprises high-frequency switching power supply module, batteries, contactor, voltage relay, check diode and fuse; The positive pole of high-frequency switching power supply module and batteries is connected with bus+HM, and the negative pole of high-frequency switching power supply module and batteries is connected with bus-M; After the coil of contactor is connected with the contact of voltage relay and the coils from parallel connection of coils of voltage relay, the two ends of foregoing circuit are connected respectively in parallel with batteries after the first fuse, the second fuse; After the contact of contactor and check diodes in parallel, be connected to the positive pole of batteries; The positive pole of batteries, negative pole are connected with respectively the 3rd fuse, the 4th fuse.
Useful technique effect of the present utility model is:
Mistake of the present utility model is put from cutting apparatus, and maintenance free cell is realized to discharge prevention, simple in structure, easy to use and reliable.
Brief description of the drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
One, circuit connection description:
As shown in Figure 1, the utility model comprises high-frequency switching power supply module, batteries GB, contactor KM, voltage relay FV, check diode D and fuse FU1, FU2, RD1, RD2.The high frequency electric source charging module adopting in the present embodiment, its model is RSD2000.High-frequency switching power supply module RSD2000, contactor KM, voltage relay FV are commercial goods.
The positive pole of high-frequency switching power supply module RSD2000 and batteries GB is connected with bus+HM, and the negative pole of high-frequency switching power supply module RSD2000 and batteries GB is connected with bus-M.After the coil of contactor KM is connected with the contact of voltage relay FV, with the coils from parallel connection of coils of voltage relay FV, the two ends of above-mentioned parallel circuits are connected respectively in parallel with batteries GB after fuse FU1, fuse FU2 again.After the contact of contactor KM is in parallel with check diode D, be connected to the positive pole of batteries GB.The positive pole of batteries GB, negative pole are connected with respectively fuse RD1, fuse RD2.
Two, circuit working principle explanation:
In the time that the utility model moves, voltage relay FV is by sampling fuse FU1, FU2, the voltage of the batteries of sampling GB, the coil of voltage relay FV obtains electric, the contact adhesive of voltage relay FV, the coil of contactor KM obtains electric, the contact adhesive of contactor KM.High-frequency switching power supply module RSD2000, to bus+HM ,-M power supply, carries out floating charge through check diode D and contactor KM, fuse RD1, RD2 to batteries GB simultaneously.When AC power or high-frequency switching power supply module RSD2000 abnormal, can not normally export time, batteries GB through fuse RD1, RD2, contactor KM to bus+HM, the electric discharge of-M accident.In the time that batteries GB is put into voltage relay FV setting value, the contact of voltage relay FV disconnects, the coil losing electricity of contactor KM; the contact of contactor KM disconnects; check diode D check, batteries GB stops the power supply to bus+HM ,-M, thereby reaches the object of protection storage battery.When high-frequency switching power supply module RSD2000 exports when normal, through check diode D forward conduction, to batteries, GB charges.Voltage relay FV obtains normal voltage by fuse FU1, FU2, the contact adhesive of voltage relay FV, and the coil of contactor KM obtains electric, the contact adhesive of contactor KM, the protection of autotomying to batteries out of service automatically.The utility model is simple in structure, easy to use, practical.
Above-described is only preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive or associate under the prerequisite that does not depart from spirit of the present utility model and design, within all should thinking and being included in protection range of the present utility model.
Claims (1)
1. electric substation's batteries is put from a cutting apparatus with crossing, and it is characterized in that: comprise high-frequency switching power supply module, batteries, contactor, voltage relay, check diode and fuse; The positive pole of high-frequency switching power supply module and batteries is connected with bus+HM, and the negative pole of high-frequency switching power supply module and batteries is connected with bus-M; After the coil of contactor is connected with the contact of voltage relay and the coils from parallel connection of coils of voltage relay, the two ends of foregoing circuit are connected respectively in parallel with batteries after the first fuse, the second fuse; After the contact of contactor and check diodes in parallel, be connected to the positive pole of batteries; The positive pole of batteries, negative pole are connected with respectively the 3rd fuse, the 4th fuse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320863667.5U CN203674697U (en) | 2013-12-25 | 2013-12-25 | Over-discharge automatic switching device for power substation storage battery set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320863667.5U CN203674697U (en) | 2013-12-25 | 2013-12-25 | Over-discharge automatic switching device for power substation storage battery set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203674697U true CN203674697U (en) | 2014-06-25 |
Family
ID=50970952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320863667.5U Expired - Fee Related CN203674697U (en) | 2013-12-25 | 2013-12-25 | Over-discharge automatic switching device for power substation storage battery set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203674697U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233487A (en) * | 2019-04-30 | 2019-09-13 | 浙江芯能光伏科技股份有限公司 | Photovoltaic power station direct current cabinet battery discharge control device |
| CN110266035A (en) * | 2019-04-30 | 2019-09-20 | 浙江芯能光伏科技股份有限公司 | Industrial roof photovoltaic power station direct current cabinet battery discharge control device |
-
2013
- 2013-12-25 CN CN201320863667.5U patent/CN203674697U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110233487A (en) * | 2019-04-30 | 2019-09-13 | 浙江芯能光伏科技股份有限公司 | Photovoltaic power station direct current cabinet battery discharge control device |
| CN110266035A (en) * | 2019-04-30 | 2019-09-20 | 浙江芯能光伏科技股份有限公司 | Industrial roof photovoltaic power station direct current cabinet battery discharge control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20161225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |