CN204290471U - Batteries off-line electric discharge free of discontinuities switching device shifter - Google Patents
Batteries off-line electric discharge free of discontinuities switching device shifter Download PDFInfo
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- CN204290471U CN204290471U CN201420747642.3U CN201420747642U CN204290471U CN 204290471 U CN204290471 U CN 204290471U CN 201420747642 U CN201420747642 U CN 201420747642U CN 204290471 U CN204290471 U CN 204290471U
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- 238000007599 discharging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Stand-By Power Supply Arrangements (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model provides a kind of batteries off-line electric discharge free of discontinuities switching device shifter, comprises the first terminal, the second terminal and the 3rd terminal; The positive pole of the first terminal is connected by first line with the positive pole of the second terminal, and the negative pole of the first terminal and the negative pole of the second terminal are by the second connection; The first bulb, the second bulb and voltmeter is connected with between first line and the second circuit; The positive pole of the 3rd terminal is connected with first line by tertiary circuit, and the negative pole of the 3rd terminal is by the 4th circuit and the second connection; Tertiary circuit is provided with the first diode, and the 4th circuit is provided with the second diode; The 3rd bulb is connected with between tertiary circuit and the 4th circuit.Adopt device of the present utility model, when AC power supply discontinuity or when breaking down, when charger can not power to the load, the batteries worked offline unremitting switching can give full load supplying of standing, keep the continuity of full station direct current supply, improve operating efficiency and reduce cost.
Description
[technical field]
The utility model relates to power transformation technology field, particularly refers to a kind of batteries off-line electric discharge free of discontinuities switching device shifter.
[background technology]
As everyone knows, transformer station direct current system is primarily of the composition such as charging module (float charger), control unit, DC feedback unit (closing circuit, control loop, protective loop, signal circuit, dissipating public loop and emergency lighting loop etc.), insulating monitoring, batteries.Wherein topmost equipment is exactly charging module and batteries.Under normal operating conditions, the secondary device of transformer station only need have been powered just by charging module.Work as power grid accident, AC-input voltage must be made to decline, when charging module cisco unity malfunction, storage battery is unremitting to DC bus power transmission, do not affect the outside function of DC power supply panel, ensure the correct operation of secondary device and circuit breaker, guarantee the safe operation of electrical network.
In accumulator cell charging and discharging process of the test, under normal circumstances, storage battery is used as stand-by power supply, by charger for DC feedback unit provides sufficient direct current, now, if storage battery needs to carry out discharge and recharge test, then need the connection disconnecting storage battery and charger, for ensureing the normal uninterrupted power supply of whole direct current system, particularly provide reliable stand-by power supply when lose AC power or charger exist Out of order, generally there are two group storage batteries for subsequent use each other in more than 220kV transformer station, but only have when a group storage battery in 110kV and 35kV transformer station and then comparatively bother, for ensureing the reliability because of external fault protection act, when doing checking discharging test, the method of the conventional property checked electric discharge is: be with one group of standby battery, storage battery is replaced out of service, again the storage battery property checked is discharged, this method has many disadvantages: one is that band reserve battery is heavy especially, and wiring extremely bothers, two is join standby battery costly, three is also want regularly to safeguard standby battery, extremely bothers.
[utility model content]
In view of this, for overcoming the deficiencies in the prior art, the utility model provide a kind of can unremitting switching to the load supplying at full station, keep the successional batteries off-line electric discharge free of discontinuities switching device shifter of full station direct current supply.
For achieving the above object, the batteries off-line electric discharge free of discontinuities switching device shifter that the utility model provides, is characterized in that: comprise the first terminal, the second terminal and the 3rd terminal;
The both positive and negative polarity of described the first terminal is connected with batteries, and the both positive and negative polarity of described second terminal is connected with discharge tester; The positive pole of the first terminal is connected by first line with the positive pole of the second terminal, and the negative pole of the first terminal and the negative pole of the second terminal are by the second connection; The first bulb, the second bulb and voltmeter is also connected with between described first line and the second circuit; Described first line and the second circuit are equipped with the first air switch of control switching device shifter switch and the second air switch of controlled discharge instrument work;
The both positive and negative polarity of described 3rd terminal is connected with the little bus of direct current; The positive pole of described 3rd terminal is connected with first line by tertiary circuit, and the negative pole of described 3rd terminal is by the 4th circuit and the second connection; Described tertiary circuit is provided with the first diode, and the 4th circuit is provided with the second diode, and tertiary circuit and the 4th circuit are also equipped with the 3rd air switch; The 3rd bulb is also connected with between described tertiary circuit and the 4th circuit.
The utility model has the advantage of: do not use reserve battery when carrying out discharge test to transmission transformer station storage battery, by device connecting system of the present utility model, the electric discharge of the off-line property checked being carried out to battery pack.The DC load at full station is temporarily by charger temporary power, when AC power supply discontinuity or when breaking down, when charger can not power to the load, the batteries worked offline unremitting switching can give full load supplying of standing, keep the continuity of full station direct current supply, provide operating efficiency and reduce cost.
[accompanying drawing explanation]
Fig. 1 is principle assumption diagram of the present utility model.
Fig. 2 is panel layout of the present utility model.
[embodiment]
In order to understand the utility model better, below with reference to accompanying drawing and instantiation, the utility model is described in detail.
Batteries off-line electric discharge free of discontinuities switching device shifter as shown in the figure, is characterized in that: comprise the first terminal JXZ1, the second terminal JXZ2 and the 3rd terminal JXZ3;
The both positive and negative polarity of the first terminal JXZ1 is connected with batteries, and the both positive and negative polarity of the second terminal JXZ2 is connected with discharge tester; The positive pole JXZ11 of the first terminal JXZ1 is connected by first line a with the positive pole JXZ21 of the second terminal JXZ2, and the negative pole JXZ12 of the first terminal JXZ1 is connected by the second circuit b with the negative pole JXZ22 of the second terminal JXZ2; The first bulb DX1, the second bulb DX2 and voltmeter V is also connected with between first line a and the second circuit b; First line a and the second circuit b is equipped with and controls the first air switch K1 of switching device shifter switch and the second air switch K2 of controlled discharge instrument work;
The both positive and negative polarity of the 3rd terminal JXZ3 is connected with the little bus of direct current; The positive pole JXZ31 of the 3rd terminal JXZ3 is connected with first line a by tertiary circuit c, and the negative pole JXZ32 of the 3rd terminal JXZ3 is connected with the second circuit b by the 4th circuit d; Tertiary circuit c is provided with the first diode D1, and the 4th circuit d is provided with the second diode D2, and tertiary circuit c and the 4th circuit d is also equipped with the 3rd air switch K3; The 3rd bulb DX3 is also connected with between tertiary circuit c and the 4th circuit d.
The first terminal JXZ1, the second terminal JXZ2, the 3rd terminal JXZ3, when normal discharge and recharge, are connected with the little bus of batteries, discharge tester and direct current by device of the present utility model respectively respectively.Close the switch first air K1 of switching device shifter, second air switch K2 of controlled discharge instrument work, connect the 3rd air switch K3 of the little bus of direct current, disconnect the total insurance between charging device and storage battery or air switch, now, the little bus of direct current is by charging device normal power supply, the little bus of direct current by charger feeder ear voltage higher than batteries terminal voltage, first diode D1, the second diode D2 end not conducting, discharge instrument is connected by the first air switch K1, the second air switch K2, can carry out regular picture test.
In the bright expression battery discharging of first bulb DX1 lamp; In the work of second bulb DX2 lamp bright expression discharge instrument; 3rd bulb DX3 lamp bright expression current supply circuit is normal.
Disappear or charger fault if there is AC power, the little bus of direct current can not by charger normal power supply, voltage drop, now the first diode D1, the second diode D2 one-way conduction, can be the little bus continued power of direct current through batteries, thus when ensure that batteries does off-line discharge test, still ensure the continued reliability of full station direct current supply.
The above exemplifying embodiment only have expressed some embodiments of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (1)
1. a batteries off-line electric discharge free of discontinuities switching device shifter, is characterized in that: comprise the first terminal (JXZ1), the second terminal (JXZ2) and the 3rd terminal (JXZ3);
The both positive and negative polarity of described the first terminal (JXZ1) is connected with batteries, and the both positive and negative polarity of described second terminal (JXZ2) is connected with discharge tester; The positive pole (JXZ11) of the first terminal (JXZ1) is connected by first line (a) with the positive pole (JXZ21) of the second terminal (JXZ2), and the negative pole (JXZ12) of the first terminal (JXZ1) is connected by the second circuit (b) with the negative pole (JXZ22) of the second terminal (JXZ2); The first bulb (DX1), the second bulb (DX2) and voltmeter (V) is also connected with between described first line (a) and the second circuit (b); Described first line (a) and the second circuit (b) are equipped with first air switch (K1) of control switching device shifter switch and second air switch (K2) of controlled discharge instrument work;
The both positive and negative polarity of described 3rd terminal (JXZ3) is connected with the little bus of direct current; The positive pole (JXZ31) of described 3rd terminal (JXZ3) is connected with first line (a) by tertiary circuit (c), and the negative pole (JXZ32) of described 3rd terminal (JXZ3) is connected with the second circuit (b) by the 4th circuit (d); Described tertiary circuit (c) is provided with the first diode (D1), 4th circuit (d) is provided with the second diode (D2), and tertiary circuit (c) and the 4th circuit (d) are also equipped with the 3rd air switch (K3); The 3rd bulb (DX3) is also connected with between described tertiary circuit (c) and the 4th circuit (d).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420747642.3U CN204290471U (en) | 2014-12-02 | 2014-12-02 | Batteries off-line electric discharge free of discontinuities switching device shifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420747642.3U CN204290471U (en) | 2014-12-02 | 2014-12-02 | Batteries off-line electric discharge free of discontinuities switching device shifter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204290471U true CN204290471U (en) | 2015-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420747642.3U Expired - Fee Related CN204290471U (en) | 2014-12-02 | 2014-12-02 | Batteries off-line electric discharge free of discontinuities switching device shifter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204290471U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531821A (en) * | 2020-11-23 | 2021-03-19 | 国网浙江建德市供电有限公司 | Emergency mobile direct-current power supply system |
-
2014
- 2014-12-02 CN CN201420747642.3U patent/CN204290471U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112531821A (en) * | 2020-11-23 | 2021-03-19 | 国网浙江建德市供电有限公司 | Emergency mobile direct-current power supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20181202 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |