CN205945206U - Incessant direct current power supply unit - Google Patents
Incessant direct current power supply unit Download PDFInfo
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- CN205945206U CN205945206U CN201620728335.XU CN201620728335U CN205945206U CN 205945206 U CN205945206 U CN 205945206U CN 201620728335 U CN201620728335 U CN 201620728335U CN 205945206 U CN205945206 U CN 205945206U
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- Prior art keywords
- direct current
- rectifier diode
- current cabinet
- switch
- load
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Abstract
The utility model provides an incessant direct current power supply unit constitutes its characterized in that by rectifier diode, switch, direct current cabinet and load rectifier diode, switch and direct current cabinet respectively have two sets ofly, and one of them switch and a rectifier diode concatenate the back to receive a set of direct current cabinet just, on the negative pole, another switch and another rectifier diode concatenate the back, and receive another group's direct current cabinet just, on the negative pole, two rectifier diode's the parallelly connected load of receiving of output. The utility model discloses during the use, two rectifier diode's output and the good back of hookup, the switch that closes, the direct current load of supply power plant or electric substation's protection etc.. This patent is applicable to the high -voltage electrical equipment inspection operation field of power plant and electric substation.
Description
Technical field
This utility model is related to electricity field power supply technique, more particularly to a kind of continual DC suppling device.
Background technology
What the electric operation power of power plant, electric substation or switchgear house adopted now is all DC source, and it is to control to bear
Lotus and living load and direct current emergency lighting load etc. provide power supply, are contemporary electric power system control, the basis of protection.For
The supply unit in power plant, electric substation or switchgear house direct current supply, voltage is 220V.Although prior art uses two sets of unidirectional currents
Source device switching power supply can meet its direct current supply requirement, but operating continuous-current plant breaks down and needs to overhaul, must
Another set of DC source must be switched to run；Or the continuous-current plant running needs periodic maintenance to overhaul, it is switched to another set of
DC source runs.There is shortcoming in prior art：Although two sets of DC sources are all 220V, parallel running when different, can only
First have a power failure, can switch.During switching, when such as high pressure equipment or transmission line of electricity have short trouble, because DC source interrupts,
Protection device cannot action, will result in upper level tripping operation, expand power failure range, directly affect production and life it is also possible to cause
Device damage in this region, casualties or environmental protection accident.Maintainer or operator when operating DC source switching,
Stricken, fear that accident occurs, work load weight.
The continuous-current plant of above-mentioned prior art in actual use, has defect and exists, and need to be improved.This
Improving of utility model thoughts drawbacks described above, is that spy concentrates on studies and coordinates repetition test, finally proposes a kind of reasonable in design
And it is effectively improved the utility model of drawbacks described above.
Content of the invention
This patent aims to provide a kind of continual DC suppling device, to effectively improve the confession of power plant, electric substation
Electric reliability, mitigates maintainer and operator's work load, guarantees the stability of power supply unit simultaneously, improves operating efficiency
And safety is it is ensured that keep the safety in production.
The technical solution adopted in the utility model：
A kind of continual DC suppling device, is made up of commutation diode, disconnecting link, direct current cabinet and load, its feature
It is that described commutation diode, disconnecting link and direct current cabinet respectively have two groups, after wherein one disconnecting link and a commutation diode concatenation, and
It is connected on the positive and negative electrode of one group of direct current cabinet, after another disconnecting link and another commutation diode concatenation, and be connected to another group of direct current
On the positive and negative electrode of screen；The outfan of two commutation diodes is connected in parallel to load.
Direct current cabinet is the abbreviation of DC source operating system.General entitled intelligent no maintenance DC power supply panel, abbreviation direct current
Screen, universal models are GZDW, and direct current cabinet is just used to supply this DC source, general 220V system.
When this utility model uses, the outfan of two commutation diodes and after being connected, close disconnecting link, and supply generates electricity
Factory or the DC load of electric substation.
This utility model beneficial effect：
1st, the outfan of two power rectifier diodes being connected, two groups of 220V direct current cabinet electric supply installations through transport
OK, DC load in handoff procedure is made not interrupt DC source；
2nd, maintainer will not have psychological burden, mitigates operator's operating pressure, improves processing safety；
3rd, ensure that DC source does not interrupt, improve stability and the reliability of high voltage electric equipment.
This patent is applied to the high voltage electric equipment inspection operation field of power plant and electric substation.
Brief description
Fig. 1 is this utility model structural representation;
In accompanying drawing:1st, commutation diode；2nd, disconnecting link；3rd, direct current cabinet;4th, load.
Specific embodiment
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Embodiment one：
One of this utility model embodiment, as shown in Figure 1：A kind of continual DC suppling device, by rectification two pole
Pipe 1, disconnecting link 2, direct current cabinet 3 and load 4 form it is characterised in that described commutation diode 1, disconnecting link 2 and direct current cabinet 3 respectively have two
After group, wherein one disconnecting link 2 and a commutation diode 1 concatenate, and it is connected on the positive and negative electrode of one group of direct current cabinet 3, another knife
After lock 2 and another commutation diode 1 concatenation, and it is connected on the positive and negative electrode of another group of direct current cabinet 3；Two commutation diodes 1
Outfan is connected in parallel to load 4.
In the present embodiment, two sets of direct current cabinet 3 power supplys are all 220V, and two sets of direct current cabinets are:GZDW--40KAh/220V, lock
The model of knife-like switch is：HK2,16A, commutation diode is： ZP50A 1800V .
By using experiment, close disconnecting link, and positive pole connects and positive pole, and negative pole connects negative pole, and direct current cabinet does not mutually charge, electrical equipment
In the case of not stopping unidirectional current two sets of DC power-supply systems can free switching power supply it is ensured that repair apparatus safety.
Claims (1)
1. a kind of continual DC suppling device, by commutation diode（1）, disconnecting link（2）, direct current cabinet（3）And load（4）Group
Become it is characterised in that described commutation diode（1）, disconnecting link（2）And direct current cabinet（3）Respectively there are two groups, wherein one disconnecting link（2）With one
Commutation diode（1）After concatenation, and it is connected to one group of direct current cabinet（3）Positive and negative electrode on, another disconnecting link（2）Whole with another
Stream diode（1）After concatenation, and it is connected to another group of direct current cabinet（3）Positive and negative electrode on；Two commutation diodes（1）Outfan
It is connected in parallel to load（4）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620728335.XU CN205945206U (en) | 2016-07-12 | 2016-07-12 | Incessant direct current power supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620728335.XU CN205945206U (en) | 2016-07-12 | 2016-07-12 | Incessant direct current power supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205945206U true CN205945206U (en) | 2017-02-08 |
Family
ID=57928623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620728335.XU Active CN205945206U (en) | 2016-07-12 | 2016-07-12 | Incessant direct current power supply unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205945206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113471863A (en) * | 2020-03-31 | 2021-10-01 | 中国石油天然气集团有限公司 | Method for maintaining uninterrupted power supply of direct current screen of transformer substation |
-
2016
- 2016-07-12 CN CN201620728335.XU patent/CN205945206U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113471863A (en) * | 2020-03-31 | 2021-10-01 | 中国石油天然气集团有限公司 | Method for maintaining uninterrupted power supply of direct current screen of transformer substation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |