CN203104103U - Bypass tool for examining and repairing storage battery - Google Patents
Bypass tool for examining and repairing storage battery Download PDFInfo
- Publication number
- CN203104103U CN203104103U CN 201320144940 CN201320144940U CN203104103U CN 203104103 U CN203104103 U CN 203104103U CN 201320144940 CN201320144940 CN 201320144940 CN 201320144940 U CN201320144940 U CN 201320144940U CN 203104103 U CN203104103 U CN 203104103U
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- storage battery
- diode
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- 238000012423 maintenance Methods 0.000 claims description 24
- 238000007667 floating Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 3
- 230000014509 gene expression Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 208000033999 Device damage Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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Abstract
The utility model relates to a tool for examining and repairing a storage battery of a converting station, and particularly relates to a tool for dismantling and replacing a single-section damaged storage battery. The tool aims at solving the problems that the storage battery can not run normally and can be damaged since the storage battery is out of running when the storage battery is examined and repaired. The bypass tool consists of a working diode, a charging diode and a charging connecting piece; when the bypass tool is used, the working diode is firstly connected with the storage battery to be examined and repaired, the storage battery connected in parallel is not short-circuited, working current also can be normally output through a storage battery pack, and then the storage battery can be detached safely; and if the storage battery can not work within a short time, the charging diode reversely parallel to the working diode is used, and a charging loop is conducted to ensure that the storage battery pack works under a floating charge state and can work normally. The bypass tool is mainly applied to dismantling, examining and repairing one or more storage batteries in the storage battery pack.
Description
Technical field
Storage battery maintenance bypass instrument relates to a kind of instrument that transformer station's batteries is overhauled, and is specifically related to the instrument that single-unit damages the storage battery dismounting and changes.
Background technology
Storage battery is the important component part of direct current system in the big-and-middle-sized transformer station, also provides full power supply and 66kV and the following equipment power switch controlled, and 220kV hydraulic mechanism system suppresses the reliable supplier of power supply.Safeguarding storage battery and make it be operated in optimum state, is that the full institute of assurance electrical secondary system is normally moved essential condition.But in the real work to we have also run into many difficulties in a large amount of battery services.
1, in the direct current system wiring, as a group storage battery only, make the whole group of storage battery break away from maintenance or safeguard impossible.
2, when handling pole board oxidation (putting the serious consequence that bad pole plate of arcing causes battery to be scrapped when pole board oxidation will cause by big electric current), break away from storage battery in short-term or make in the middle of the storage battery open circuit will cause reclosing failure behind the switch trip because the input of switch reclosures makes, influence normal power supply.
3, in certain single-unit storage battery demolishing process, just meeting to overlap behind the switch trip and may cause arc discharge burn staff and damage battery pole plates.
4, losing under the situation of storage battery, overlap behind the switch trip.The big electric current that closes a floodgate will damage charging device.Cause bigger device damage, and the serious consequence that causes full institute direct current to disappear.
The utility model content
The purpose of this utility model is in order to solve when carrying out storage battery overhauled, and storage battery breaks away from operation, makes storage battery can't normally move and cause the problem of battery damage.
Storage battery maintenance bypass instrument, it is made of in flakes work diode, charging diode and charging; The anode of described work diode is connected with a charging end in flakes, and the charging other end in flakes is connected with the negative electrode of charging diode, and the anode of charging diode is connected with the negative electrode of work diode;
The negative electrode of described work diode is as external negative pole link, and the anode of work diode is as external anode connection terminal.
Described work diode is that forward is by the diode of electric current greater than 200A.
The working inverse voltage of described work diode is greater than by the nominal voltage of the storage battery of bypass or batteries.
The requirement that can satisfy forward loop continuation connection of the storage battery that the work diode of the utility model instrument employing unilateal conduction performance needs repairing as an alternative, and because the unilateral conduction of work diode, the storage battery that quilt is bypassed can short circuit.
Specifically referring to Fig. 3, for can not being constituted the loop by the work diode by the bypass storage battery, and the normal duty electric current can continue outside supplying electric current by the work diode.
Because the parameter of work diode selects to guarantee enough capacity that pass through, in view of general electric substation electromagnetic mechanism switching current in being no more than the scope of 200A, the utility model instrument selection forward is by the work diode of electric current greater than 200A.
Working inverse voltage:
Working inverse voltage should be less than work diode maximum reverse operating voltage, and when needs broke away from the operation of three joint storage batterys, the reverse voltage that diode bears was,
A, when this bypass instrument and storage battery parallel running, the voltage of 3 joint storage batterys promptly: * 2.3 volts at 3 joints/save=6.9 volts;
B, when the battery detachment system operation of needs maintenance, be when disconnecting then for the floating charge loop, the work diode is to bear working inverse voltage, the big or small available following formula of this voltage calculates, normally we can think during floating charge: n * Ex=Ec,
Wherein: n is the total joint number of storage battery;
Ex is the voltage of single-unit storage battery;
Ec is a floating machine voltage;
In fact just near equating that Ec is bigger more than 80 millivolts than n * Ex, we ignore this value to this equation.
To remove 3 batteries is example, the reverse voltage of evaluation work diode, and Ec-(n-3) Ex=Ec-nEx+3Ex=3Ex, identical with listed result of calculation among a, the selection working inverse voltage gets final product greater than 7 volts work diode.
Because withdrawing from of part storage battery (this design being out of service by maximum three joint storage batterys), if directly connect storage battery with lead, inverse electromotive force will be reduced, the comprehensive resistance of storage battery reduces simultaneously, thereby floating current is increased, long-term this operational mode can be damaged storage battery, the way that solves is exactly the change of the charging current that parallel resistance causes because of the change of junction style with balance on diode, consider that parallel connection gone up diode as reverse floating charge path, itself have certain resistance, so saved this resistance.
The beneficial effect that the utility model brings has provided under a kind of situation that does not break away from operation at whole Battery pack and has realized removing only single or many instruments that storage battery is dismantled, keeped in repair or changes, and the quantity of many storage batterys is smaller or equal to 3; Whole process has realized the normal operation in storage battery loop, the operate as normal of big direct current closing circuit, thus the direct current system operational reliability has improved 50%, and storage battery not causing damage, the risk of whole group storage battery detachment system has also reduced by 30% simultaneously.
Description of drawings
Fig. 1 is the schematic diagram of the application state of storage battery maintenance bypass instrument described in the utility model; Reference numeral 4 expression batteries; Reference numeral 5 expressions storage battery maintenance described in the utility model bypass instrument; Reference numeral 6 expression loads.
Fig. 2 is a storage battery maintenance bypass tool construction schematic diagram described in the utility model.
Fig. 3 is the operation principle key diagram of storage battery maintenance bypass instrument described in the utility model.
Embodiment
Embodiment one: referring to Fig. 2 present embodiment is described, the described storage battery of present embodiment maintenance bypass instrument, it 3 is made of in flakes work diode 1, charging diode 2 and charging; An end of 3 is connected the anode of described work diode 1 with charging in flakes, and charging 3 the other end in flakes is connected with the negative electrode of charging diode 2, and the anode of charging diode 2 is connected with the negative electrode of work diode 1;
The negative electrode of described work diode 1 is as external negative pole link, and the anode of work diode 1 is as external anode connection terminal.
Embodiment two: the difference of present embodiment and embodiment one described storage battery maintenance bypass instrument is that described work diode 1 is that forward is by the diode of electric current greater than 200A.
Embodiment three: the difference of present embodiment and embodiment one described storage battery maintenance bypass instrument is, the working inverse voltage of described work diode 1 is greater than by the nominal voltage of the storage battery of bypass or batteries.
In actual applications, specifically referring to Fig. 1 and Fig. 2, at first in the charging that guarantees storage battery maintenance bypass instrument described in the utility model in flakes under 3 situations about disconnecting, with the external positive pole of its storage battery maintenance bypass instrument described in the utility model, the storage battery that the negative pole link is correct and quilt is bypassed also connects, that is: the external anode connection terminal of storage battery maintenance bypass instrument described in the utility model is connected with the positive pole of the storage battery that is bypassed, the negative pole link of described storage battery maintenance bypass instrument is connected with the negative pole of the storage battery that is bypassed, specifically referring to shown in Figure 1, can guarantee like this by and the not short circuit of storage battery that connects, and the normal output services electric current of batteries;
Secondly, can remove the storage battery that is bypassed safely; If the storage battery that is bypassed can't be devoted oneself to work in the short time, to charge in flakes 3 connects, and makes input and charging diode 2 work diode 1 reverse parallel connection, connects charge circuit, guarantee that batteries is operated under the floating charge state, make that batteries can operate as normal.
When recovering the operation of quilt maintenance storage battery if desired, 3 disconnections in flakes of will charging, the storage battery after the installation maintenance gets final product the dismounting of bypass instrument at last then.
The utility model design is a kind of not to break away from whole Battery pack under the situation of operation and can remove the instrument that individual cell repairs or replaces, because the special construction of batteries, this instrument has possessed following several characteristics:
1, behind the storage battery that dismounting needs repairing, batteries is in the connective and uninterrupted power supply that continues forward to keep external.
2, avoided the battery damage that caused by the short circuit of bypass storage battery for prepare removing this instrument of storage battery of safeguarding.
3, removed the back long period can not resume operation the time by the bypass storage battery, guaranteed that its whole group storage battery floating charge loop is unimpeded, make the normal operating conditions of storage battery.
4, guaranteed that the pressure drop of floating current on bypass equipment is suitable with this battery-operated voltage, made the stable of its floating current.
5, this instrument can bear the impact of the big electric current that closes a floodgate.
The application of storage battery maintenance bypass instrument makes storage battery realize only single or many demolition and maintenance and does not influence the normal operation of whole group storage battery, keeps the stable operation of direct current system.
The structure of storage battery described in the utility model maintenance bypass instrument is not limited to the concrete structure that the respective embodiments described above are put down in writing, and can also be the reasonable combination of the technical characterictic put down in writing of the respective embodiments described above.
Claims (3)
1. storage battery maintenance bypass instrument is characterized in that, it is made up of work diode (1), charging diode (2) and charge in flakes (3); An end of (3) is connected the negative electrode of described work diode (1) with charging in flakes, and the charging other end of (3) in flakes is connected with the anode of charging diode (2), and the negative electrode of charging diode (2) is connected with the anode of work diode (1);
The anode of described work diode (1) is as external negative pole link, and the negative electrode of work diode (1) is as external anode connection terminal.
2. storage battery maintenance bypass instrument according to claim 1 is characterized in that described work diode (1) is that forward is by the diode of electric current greater than 200A.
3. storage battery according to claim 1 maintenance bypass instrument is characterized in that, the working inverse voltage of described work diode (1) is greater than by the nominal voltage of the storage battery of bypass or batteries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320144940 CN203104103U (en) | 2013-03-27 | 2013-03-27 | Bypass tool for examining and repairing storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320144940 CN203104103U (en) | 2013-03-27 | 2013-03-27 | Bypass tool for examining and repairing storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203104103U true CN203104103U (en) | 2013-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320144940 Expired - Fee Related CN203104103U (en) | 2013-03-27 | 2013-03-27 | Bypass tool for examining and repairing storage battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203104103U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138386A (en) * | 2013-03-27 | 2013-06-05 | 国家电网公司 | Storage battery overhauling bypass tool |
| CN104810496A (en) * | 2014-01-23 | 2015-07-29 | 广西电网公司百色供电局 | Two-way crossover circuit |
-
2013
- 2013-03-27 CN CN 201320144940 patent/CN203104103U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138386A (en) * | 2013-03-27 | 2013-06-05 | 国家电网公司 | Storage battery overhauling bypass tool |
| CN104810496A (en) * | 2014-01-23 | 2015-07-29 | 广西电网公司百色供电局 | Two-way crossover circuit |
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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: 20130731 Termination date: 20170327 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |