CN205489501U - Be applied to protection device of electric power system control source - Google Patents
Be applied to protection device of electric power system control source Download PDFInfo
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- CN205489501U CN205489501U CN201620266608.3U CN201620266608U CN205489501U CN 205489501 U CN205489501 U CN 205489501U CN 201620266608 U CN201620266608 U CN 201620266608U CN 205489501 U CN205489501 U CN 205489501U
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- power supply
- system control
- protection device
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- electric power
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Abstract
The utility model provides a be applied to protection device of electric power system control source, including power input port, current -limiting unit, rectifier unit, battery charging unit, discharge cell and DC output mouth, the current -limiting unit of at first establishing ties on power input port's the anodal circuit, then insert respectively with the negative pole circuit rectifier unit's power input end, this rectifier unit's output connects in parallel in proper order and has battery charging unit, discharge cell and DC output mouth. Be applied to protection device of electric power system control source, has eliminated the inductive load and has started the surge to power supply's impact, increased system control power output's stability, reduced power supply's capacity, have the characteristics that simple structure, easy maintenance, processing cost are low, become to produce efficient, superior performance, simple to operate.
Description
Technical field
This utility model belongs to field of power, especially relates to one and is applied to electric power system control electricity
The protection device in source.
Background technology
In the prior art, the control coil of Switch load the most all can be linked into a stable power supply
In loop.In its coil start-up course, during coil magnetization, produced surge current can be to power supply
Stability produce serious influence.When the short-time overload fan-out capability deficiency of power supply, Switch
The coil of load is when excitation owing to absorbing less than enough energy, and the action that can cause load can not be successful
Complete.I.e. allow to inadequate execution process, it is also possible to the problem bringing other.For example, it may be possible to
The electric power output voltage of power supply circuits is pulled low to a lower limit, causes power supply to Switch loading coil
Control unstable, resulting even in other loads accessing power supply can not normal work due to voltage instability
Make, affect the stability of power supply and control circuit.
Acting characteristic based on Switch loading coil, general solution is the short of raising power supply
Time fan-out capability.But, in order to improve power supply fan-out capability in short-term, it is necessary to increase power supply
Capacity.On the one hand, the increase of capacity can bring the increase of size to raise with price；On the other hand, switch
Although the energy loss that class loading coil is when action is very big, but its energy loss when stable state is the least.
Ordinary circumstance, the energy loss that coil stable state keeps is when being only action about the 1% of energy loss.So,
The waste of power supply capacity is increased undoubtedly after increasing power supply capacity.The main purpose of this technical patent is exactly
Solve the matching problem between Switch loading coil and power supply.Meanwhile, the utilization rate of power supply is optimized.
Summary of the invention
In view of this, this utility model is directed to a kind of protection dress being applied to electric power system control power supply
Put, to eliminate the inductive load startup surge impact to power supply.
For reaching above-mentioned purpose, the technical solution of the utility model is achieved in that
A kind of protection device being applied to electric power system control power supply, including power input port, current limliting list
Unit, rectification unit, charhing unit, discharge cell and DC output end mouth；
First connect on the cathode circuit of described power input port a flow-restriction, the most same to cathode traces
Being respectively connected to the power input of described rectification unit, the outfan of this rectification unit is parallel with described successively
Charhing unit, discharge cell and DC output end mouth, described power input port output electric energy is first by limiting
Being rectified into direct current through rectification unit after stream unit current limliting, DC source is divided into three tunnels, and the first via gives charging single
Unit's charging, the second tunnel is to discharge cell electric discharge, the 3rd road input direct-current output port.
Further, described power input port is ac input end mouth.
Further, described flow-restriction is a current-limiting resistance.
Further, described rectification unit is diode rectifier bridge.
Further, described charhing unit is the electric capacity being connected in parallel on described rectification unit outfan.
Further, described discharge cell is a discharge resistance being connected in parallel on described charhing unit two ends.
Relative to prior art, the protection dress being applied to electric power system control power supply described in the utility model
Put and have the advantage that
(1) protection device being applied to electric power system control power supply described in the utility model, eliminates
Inductive load starts the surge impact to power supply, and the system that adds controls the stability of power supply output,
Reduce the capacity of power supply, have simple in construction, easy to maintenance, processing cost is low, become produce efficiency
Height, superior performance, feature easy for installation.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing,
Schematic description and description of the present utility model is used for explaining this utility model, is not intended that this reality
With novel improper restriction.In the accompanying drawings:
Fig. 1 is the protection device being applied to electric power system control power supply described in this utility model embodiment
Electronic schematic diagram；
Fig. 2 is the protection device being applied to electric power system control power supply described in this utility model embodiment
Circuit topology schematic diagram.
Description of reference numerals:
1-power input port；2-flow-restriction；3-rectification unit；4-charhing unit；5-discharge cell；
6-DC output end mouth.
Detailed description of the invention
It should be noted that in the case of not conflicting, in embodiment in this utility model and embodiment
Feature can be mutually combined.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " horizontal stroke
To ", " on ", D score, "front", "rear", "left", "right", " vertically ", " water
Flat ", the orientation that indicates of " top ", " end ", " interior ", " outward " etc. or position relationship be based on attached
Orientation shown in figure or position relationship, be for only for ease of description this utility model and simplify description, and not
Be instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and
Operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " first ", " second "
Etc. being only used for describing purpose, and it is not intended that instruction or hint relative importance or implicit indicate indication
The quantity of the technical characteristic shown.Thus, the feature defining " first ", " second " etc. can be expressed
Or implicitly include one or more this feature.In description of the present utility model, unless otherwise
Illustrating, " multiple " are meant that two or more.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited,
Term " is installed ", " being connected ", " connection " should be interpreted broadly, and connects for example, it may be fixing,
Can also be to removably connect, or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；
Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, can be the company of two element internals
Logical.For the ordinary skill in the art, can understand that above-mentioned term is at this by concrete condition
Concrete meaning in utility model.
Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As illustrated in fig. 1 and 2, this utility model includes power input port 1, flow-restriction 2, rectification
Unit 3, charhing unit 4, discharge cell 5 and DC output end mouth 6；
Power input port 1 external power supply, first the cathode circuit of this power input port 1 connect one
Flow-restriction 2, is then respectively connected to the power input of rectification unit 3 with cathode traces, this rectification list
The outfan of unit 3 is parallel with charhing unit 4, discharge cell 5 and DC output end mouth 6, power supply successively
Input port 1 exports electric energy and is first rectified into direct current through rectification unit 3, directly by after flow-restriction 2 current limliting
Stream power supply is divided into three tunnels, and the first via is charged to charhing unit 4, discharges to discharge cell 5 in the second tunnel, the
Switch coil power supply is given in three route DC output end mouth 6 outputs.
Power input port 1 is ac input end mouth.
Flow-restriction 2 is a current-limiting resistance, in order to limit charging current, it is to avoid owing to charging power is excessive
And charhing unit is caused damage.
Rectification unit, charhing unit and discharge cell are mainly made up of a single-phase semi-bridge rectification circuit.
Rectification unit 3 is the diode rectifier bridge that AC rectification becomes direct current.
Charhing unit 4 is the electric capacity being connected in parallel on rectification unit outfan.
Discharge cell 5 is a discharge resistance being connected in parallel on charhing unit two ends.
The circuit of rectifier bridge, electric capacity and discharge resistance with the use of.
Each unit module in this utility model has connected post package and has become a block coupled in series in system control
Between power supply processed and Switch loading coil electric loop, utilize charging in short-term and the instantaneous discharge of electric capacity
Characteristic, exports stable direct-current power supply Switch loading coil, it is provided that coil drive switch main contact
The energy of action, so, the loss that Switch loading coil action produces mainly is supplied by electric capacity electric discharge,
Do not interfere with the output characteristics of power supply, as a example by Switch loading coil is as catalyst.
Work process of the present utility model is: during catalyst steady operation, and the energy that coil keeps is by exchanging
Supplying after power supply rectified unit 3 rectification, meanwhile, the power supply after rectification is defeated to being connected in parallel on rectification unit 3
Go out to hold the electric capacity on bus to be charged, when contactless contactor coil working is in adhesive transient state, needed for it
The energy wanted is supplied by the electric capacity as charhing unit 4, in order to ensure what Switch load was controlled by system
Effectiveness, devises the discharge resistance as discharge cell 5 and is connected in parallel on the electric capacity two as charhing unit 4
End, it is achieved when system power supply disconnects, the discharge resistance repid discharge to electric capacity, it is ensured that Switch is born
Load can disconnect in time.
This utility model is applied in power system Switch controls loop, can move according to Switch coil
Important parameter in protection device is adjusted by the actual power loss made and keep, and makes the assembly guarantor to power supply
Protect effect to reach to maximize, great motility.
The foregoing is only preferred embodiment of the present utility model, not new in order to limit this practicality
Type, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement made
Deng, within should be included in protection domain of the present utility model.
Claims (6)
1. the protection device being applied to electric power system control power supply, it is characterised in that: include power supply
Input port, flow-restriction, rectification unit, charhing unit, discharge cell and DC output end mouth；
First connect on the cathode circuit of described power input port a flow-restriction, the most same to cathode traces
Being respectively connected to the power input of described rectification unit, the outfan of this rectification unit is parallel with described successively
Charhing unit, discharge cell and DC output end mouth.
The protection device being applied to electric power system control power supply the most according to claim 1, it is special
Levy and be: described power input port is ac input end mouth.
The protection device being applied to electric power system control power supply the most according to claim 1, it is special
Levy and be: described flow-restriction is a current-limiting resistance.
The protection device being applied to electric power system control power supply the most according to claim 2, it is special
Levy and be: described rectification unit is diode rectifier bridge.
The protection device being applied to electric power system control power supply the most according to claim 1, it is special
Levy and be: described charhing unit is the electric capacity being connected in parallel on described rectification unit outfan.
The protection device being applied to electric power system control power supply the most according to claim 1, it is special
Levy and be: described discharge cell is a discharge resistance being connected in parallel on described charhing unit two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620266608.3U CN205489501U (en) | 2016-03-30 | 2016-03-30 | Be applied to protection device of electric power system control source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620266608.3U CN205489501U (en) | 2016-03-30 | 2016-03-30 | Be applied to protection device of electric power system control source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205489501U true CN205489501U (en) | 2016-08-17 |
Family
ID=56646411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620266608.3U Expired - Fee Related CN205489501U (en) | 2016-03-30 | 2016-03-30 | Be applied to protection device of electric power system control source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205489501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610135A (en) * | 2016-03-30 | 2016-05-25 | 天津瑞能电气有限公司 | Protection device applied to power system control power supply |
-
2016
- 2016-03-30 CN CN201620266608.3U patent/CN205489501U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105610135A (en) * | 2016-03-30 | 2016-05-25 | 天津瑞能电气有限公司 | Protection device applied to power system control power supply |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20210330 |