CN203896020U - Transformer substation storage battery over-discharge protection system - Google Patents
Transformer substation storage battery over-discharge protection system Download PDFInfo
- Publication number
- CN203896020U CN203896020U CN201420292841.XU CN201420292841U CN203896020U CN 203896020 U CN203896020 U CN 203896020U CN 201420292841 U CN201420292841 U CN 201420292841U CN 203896020 U CN203896020 U CN 203896020U
- Authority
- CN
- China
- Prior art keywords
- storage battery
- direct
- circuit breaker
- transformer substation
- direct current
- 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.)
- Expired - Lifetime
Links
- 230000002265 prevention Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a protection device of a transformer substation storage battery, in particular, a transformer substation storage battery over-discharge protection system. The transformer substation storage battery over-discharge protection system comprises a direct current charger of which the input ends are electrically connected with a three-phase power source. An output end of the direct current charger is connected with a direct current load. The other output end of the direct current charger is connected with a storage battery. The transformer substation storage battery over-discharge protection system further comprises a direct-current voltage-limiting circuit breaker; two ends of a coil of the direct-current voltage limiting-circuit breaker are connected with two ends of the storage battery; and a contact of the direct-current voltage-limiting circuit breaker is connected onto a discharge line of the storage battery. When a fault occurs on the direct current charger, the storage battery supplies power for the direct current load; when the voltage of the storage battery is decreased to safe voltage, an electromagnetic force generated on the direct-current voltage-limiting circuit breaker is insufficient to make the contact closed, and then, the contact of the direct-current voltage-limiting circuit breaker is disconnected; the discharge line of the storage battery is disconnected, so that the storage battery will not perform over-discharge; and the therefore, the storage battery can be protected, and the service life of the storage battery can be prolonged.
Description
Technical field
The utility model relates to the protective device of storage batteries of transformer substation, is specially storage batteries of transformer substation Cross prevention system.
Background technology
In power system transformer substation, use DC charging motor that AC rectification is become to direct current, the DC load that this direct current is supplied with in transformer station is used, the concrete connection of DC charging motor is: the input of DC charging motor is connected with three-phase electricity, the output of DC charging motor is connected with DC load, on the output of DC charging motor, be also connected with storage battery, after DC charging motor breaks down, powered to DC load by storage battery, when DC charging motor cannot be resumed work for a long time, storage battery will be crossed and put, the long-time mistake of storage battery can be damaged after putting, and then affect life-span of storage battery.
Summary of the invention
The utility model puts because crossing the problem that affects service lifetime of accumulator for the storage battery solving in transformer station, and storage batteries of transformer substation Cross prevention system is provided.
The utility model is to adopt following technical scheme to realize: storage batteries of transformer substation Cross prevention system; comprise the DC charging motor that input is connected with three-phase electricity; the output of DC charging motor is connected with DC load; on the output of DC charging motor, be also connected with storage battery; also comprise direct current pressure limiting circuit breaker; the two ends of coil and the two ends of storage battery of direct current pressure limiting circuit breaker are connected, and the contact of direct current pressure limiting circuit breaker is connected on the discharge line of storage battery.
DC charging motor breaks down; storage battery is powered to DC load; in the time that the voltage drop of storage battery arrives safe voltage; the electromagnetic force deficiency producing on direct current pressure limiting circuit breaker is so that the closing of contact; the contact of direct current pressure limiting circuit breaker disconnects, and the discharge line of storage battery disconnects, and storage battery just can not be crossed and put; so just protect storage battery, increased the useful life of storage battery.
The storage batteries of transformer substation Cross prevention system that the utility model provides can prevent that the storage battery in transformer station from crossing and put, and has protected storage battery, has increased the useful life of storage battery.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Storage batteries of transformer substation Cross prevention system; comprise the DC charging motor that input is connected with three-phase electricity; the output of DC charging motor is connected with DC load; on the output of DC charging motor, be also connected with storage battery; also comprise direct current pressure limiting circuit breaker; the two ends of coil and the two ends of storage battery of direct current pressure limiting circuit breaker are connected, and the contact of direct current pressure limiting circuit breaker is connected on the discharge circuit of storage battery.When concrete enforcement, on the outlet line of the output of DC charging motor, be also connected with the diode D of counterflow-preventing, on the discharge line of storage battery, be also connected with fuse FL.
Claims (1)
1. storage batteries of transformer substation Cross prevention system; comprise the DC charging motor that input is connected with three-phase electricity; the output of DC charging motor is connected with DC load; on the output of DC charging motor, be also connected with storage battery; characterized by further comprising direct current pressure limiting circuit breaker; the two ends of coil and the two ends of storage battery of direct current pressure limiting circuit breaker are connected, and the contact of direct current pressure limiting circuit breaker is connected on the discharge line of storage battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420292841.XU CN203896020U (en) | 2014-06-04 | 2014-06-04 | Transformer substation storage battery over-discharge protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420292841.XU CN203896020U (en) | 2014-06-04 | 2014-06-04 | Transformer substation storage battery over-discharge protection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203896020U true CN203896020U (en) | 2014-10-22 |
Family
ID=51722376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420292841.XU Expired - Lifetime CN203896020U (en) | 2014-06-04 | 2014-06-04 | Transformer substation storage battery over-discharge protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203896020U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116780721A (en) * | 2023-08-15 | 2023-09-19 | 成都特隆美储能技术有限公司 | BMS control method for optimizing energy storage battery cluster |
-
2014
- 2014-06-04 CN CN201420292841.XU patent/CN203896020U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116780721A (en) * | 2023-08-15 | 2023-09-19 | 成都特隆美储能技术有限公司 | BMS control method for optimizing energy storage battery cluster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141022 |
|
| CX01 | Expiry of patent term |