CN208353057U - A kind of mother spare power automatic switching control circuit and spare power automatic switching system - Google Patents
A kind of mother spare power automatic switching control circuit and spare power automatic switching system Download PDFInfo
- Publication number
- CN208353057U CN208353057U CN201820953439.XU CN201820953439U CN208353057U CN 208353057 U CN208353057 U CN 208353057U CN 201820953439 U CN201820953439 U CN 201820953439U CN 208353057 U CN208353057 U CN 208353057U
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- CN
- China
- Prior art keywords
- auxiliary magnet
- automatic switching
- power automatic
- closing
- spare power
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Abstract
The utility model relates to a kind of mother spare power automatic switching control circuit and spare power automatic switching systems, spare power automatic switching system includes a second part and two second part, two second part include mother spare power automatic switching control circuit, and mother spare power automatic switching control circuit includes closing circuit, the first auxiliary magnet, the second auxiliary magnet, third auxiliary magnet, the 4th auxiliary magnet, on-delay disconnection relay, intermediate relay.First auxiliary magnet is connected in parallel to closing circuit after connecting with the coil of intermediate relay, closing circuit include closing switch and with the concatenated closing coil of closing switch, second auxiliary magnet is in parallel with the first auxiliary magnet, and on-delay disconnects the coil of relay and the coils from parallel connection of coils of intermediate relay；Third auxiliary magnet is in parallel with closing switch after connecting with the switch that the switch of intermediate relay and on-delay disconnect relay；4th auxiliary magnet is in parallel with third auxiliary magnet.By mother spare power automatic switching control circuit and spare power automatic switching system, excessive space is occupied for solving the problem of that backup auto-activating device volume is big.
Description
Technical field
The utility model belongs to low-voltage power supply technical field, and in particular to a kind of mother spare power automatic switching control circuit and prepared auto restart
System.
Background technique
In low-voltage power supply system now, usual power supply use two inlet wires, one mother power supply mode, low pressure into
When a certain section of power supply system of line breaks down, reliably can put into interconnection switch is the key that guarantee power supply uninterrupted power supply, one
As select backup auto-activating device to control the switching of power supply.Main backup auto-activating device domestic at present apply to 35Kv and
110Kv single busbar connection type, backup auto-activating device greatly improve the performance factor of backup auto-activating device with female poor device cooperation,
And low-voltage distribution is partially due to power supply reliability is high, does not also use backup auto-activating device generally, but with a large amount of construction of converter station,
400v load in standing is more important, directly affects the normal operation of a direct current, therefore generally existing low pressure system in converter station
System uses backup auto-activating device.But backup auto-activating device is expensive, and volume is big, occupy the excessive space of power distribution cabinet, and simple economy and
Stable spare power automatic switching control circuit and spare power automatic switching system will more and more be applied.
Utility model content
It is standby for solving the purpose of this utility model is to provide a kind of mother spare power automatic switching control circuit and spare power automatic switching system
The problem of automatic bus volume is big, occupies excessive space.
In order to solve the above technical problems, the technical solution of the utility model are as follows:
The utility model provides a kind of mother spare power automatic switching control circuit, including closing circuit, the first auxiliary magnet, second auxiliary
Point, third auxiliary magnet, the 4th auxiliary magnet, on-delay is helped to disconnect relay, intermediate relay；First auxiliary magnet and intermediate relay
Be connected in parallel to closing circuit after the coil series connection of device, closing circuit include closing switch and with the concatenated closing coil of closing switch,
Second auxiliary magnet is in parallel with the first auxiliary magnet, and on-delay disconnects the coil of relay and the coils from parallel connection of coils of intermediate relay；The
Three auxiliary magnets are in parallel with closing switch after connecting with the switch that the switch of intermediate relay and on-delay disconnect relay；4th
Auxiliary magnet is in parallel with third auxiliary magnet.
The utility model additionally provides a kind of spare power automatic switching system, including a second part and two second part, two second part include
Mother spare power automatic switching control circuit, mother spare power automatic switching control circuit include closing circuit, the first auxiliary magnet, the second auxiliary magnet, third
Auxiliary magnet, the 4th auxiliary magnet, on-delay disconnect relay, intermediate relay；The coil of first auxiliary magnet and intermediate relay
Closing circuit is connected in parallel to after series connection, closing circuit includes closing switch and assists with the concatenated closing coil of closing switch, second
Point is in parallel with the first auxiliary magnet, and on-delay disconnects the coil of relay and the coils from parallel connection of coils of intermediate relay；Third auxiliary magnet
It is in parallel with closing switch after connecting with the switch that the switch of intermediate relay and on-delay disconnect relay；4th auxiliary magnet with
Third auxiliary magnet is in parallel.
The utility model has the beneficial effects that
Backup power automatic switching function is realized by the application of relay, it is electric that on-delay disconnection relay prevents closing coil to obtain
Overlong time joined auxiliary magnet in closing circuit, ensure realize prepared auto restart while, increase system stability, save
The power distribution cabinet space that is occupied because backup auto-activating device volume is excessive.
Further, the normally opened contact being closed when the first auxiliary magnet and the second auxiliary magnet are for corresponding to incoming line cabinet failure.
Further, the normally-closed contact disconnected when third auxiliary magnet and the 4th auxiliary magnet are for corresponding to incoming line cabinet failure.
Detailed description of the invention
Fig. 1 is the electrical connection diagram of mother spare power automatic switching control circuit.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, with reference to the accompanying drawings and embodiments, to this
Utility model is described in further detail.
In the present embodiment, power supply uses the power supply mode of two inlet wires, one mother, a second part packet of spare power automatic switching system
Include incoming line cabinet and various interconnection switches；Two second part include mother spare power automatic switching control circuit, and mother spare power automatic switching control circuit includes
Closing circuit, the first auxiliary magnet, the second auxiliary magnet, third auxiliary magnet, the 4th auxiliary magnet, on-delay disconnect relay, centre
Relay；There are electric interlock between two incoming line cabinets and a contact cabinet, two incoming line cabinets are respectively the first incoming line cabinet and second
Incoming line cabinet.
As shown in Figure 1, the breaker of the first incoming line cabinet and the second incoming line cabinet, which is in, to be closed when electrical power trans mission/distribution system operates normally
Conjunction state, the first auxiliary magnet and the second auxiliary magnet are off-state, and closing circuit will not constitute access at this time.
When having in the first incoming line cabinet and the second incoming line cabinet all the way because of failure disconnection, the corresponding breaker auxiliary magnet of incoming line cabinet
Closed state will be converted to by off-state, and the corresponding third auxiliary magnet of incoming line cabinet and the 4th auxiliary magnet are converted by closed state
For off-state；The closure of first auxiliary magnet or the second auxiliary magnet cause intermediate relay KA coil and on-delay disconnect after
The coil of electric appliance KT obtain it is electric, due to on-delay disconnect relay KT on-delay turn-off characteristic, intermediate relay KA switch
Be closed moment on-delay disconnect relay KT switch be in closed state, at this time closing circuit be powered, closing coil X obtain it is electric,
Busbar breaker is closed a floodgate, and realizes backup power automatic switching function.After on-delay, which disconnects relay KT delay time, to be met, on-delay
It disconnects relay KT switch to disconnect, closing coil X is powered off at this time；Setting on-delay disconnects relay KT and can effectively prevent closing
Brake cable circle for a long time must be electric, plays anti creep performance.
When the first incoming line cabinet and the second incoming line cabinet break down simultaneously, the third auxiliary magnet of the first incoming line cabinet and second into
4th auxiliary magnet of line cabinet is changed into off-state by closed state, and mother cabinet closing circuit does not work at this time.
In the present embodiment, normally opened touching that the first auxiliary magnet and the second auxiliary magnet are closed when being for corresponding to incoming line cabinet failure
Point.The normally-closed contact that third auxiliary magnet and the 4th auxiliary magnet disconnect when being for corresponding to incoming line cabinet failure.
The utility model additionally provides a kind of spare power automatic switching system, and two second part of spare power automatic switching system is standby certainly with above-mentioned mother
It throws control circuit to control contact cabinet closing circuit, to reach when a certain incoming line cabinet breaks down, realizes prepared auto restart.
It is discussed in detail although the content of the utility model has passed through above preferred embodiment, but it should be appreciated that on
The description stated is not considered as limitations of the present invention.After those skilled in the art have read above content, for
A variety of modifications and substitutions of the utility model all will be apparent.Therefore, the protection scope of the utility model should be by appended
Claim limit.
Claims (6)
1. a kind of mother spare power automatic switching control circuit, which is characterized in that including closing circuit, the first auxiliary magnet, the second auxiliary magnet,
Three auxiliary magnets, the 4th auxiliary magnet, on-delay disconnect relay, intermediate relay；First auxiliary magnet and intermediate relay
Coil series connection after be connected in parallel to closing circuit, the closing circuit include closing switch and with the concatenated closing line of closing switch
Circle, second auxiliary magnet is in parallel with the first auxiliary magnet, and on-delay disconnects the coil of relay and the coil of intermediate relay
It is in parallel；The third auxiliary magnet is opened after connecting with the switch that the switch of intermediate relay and on-delay disconnect relay with combined floodgate
It closes in parallel；4th auxiliary magnet is in parallel with third auxiliary magnet.
2. a kind of mother spare power automatic switching control circuit according to claim 1, which is characterized in that first auxiliary magnet and
The normally opened contact that two auxiliary magnets are closed when being for corresponding to incoming line cabinet failure.
3. a kind of mother spare power automatic switching control circuit according to claim 1, which is characterized in that the third auxiliary magnet and
The normally-closed contact that four auxiliary magnets disconnect when being for corresponding to incoming line cabinet failure.
4. a kind of spare power automatic switching system, which is characterized in that including a second part and two second part, two second part includes that mother is standby
From throwing control circuit, the mother spare power automatic switching control circuit includes that closing circuit, the first auxiliary magnet, the second auxiliary magnet, third are auxiliary
Point, the 4th auxiliary magnet, on-delay is helped to disconnect relay, intermediate relay；The line of first auxiliary magnet and intermediate relay
Be connected in parallel to closing circuit after circle series connection, the closing circuit include closing switch and with the concatenated closing coil of closing switch, institute
State that the second auxiliary magnet is in parallel with the first auxiliary magnet, on-delay disconnects the coil of relay and the coils from parallel connection of coils of intermediate relay；
The switch that the third auxiliary magnet and the switch of intermediate relay and on-delay disconnect relay connect after with closing switch simultaneously
Connection；4th auxiliary magnet is in parallel with third auxiliary magnet.
5. a kind of spare power automatic switching system according to claim 4, which is characterized in that first auxiliary magnet and the second auxiliary magnet
The normally opened contact being closed when for for corresponding to incoming line cabinet failure.
6. a kind of spare power automatic switching system according to claim 4, which is characterized in that the third auxiliary magnet and the 4th auxiliary magnet
The normally-closed contact disconnected when for for corresponding to incoming line cabinet failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820953439.XU CN208353057U (en) | 2018-06-19 | 2018-06-19 | A kind of mother spare power automatic switching control circuit and spare power automatic switching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820953439.XU CN208353057U (en) | 2018-06-19 | 2018-06-19 | A kind of mother spare power automatic switching control circuit and spare power automatic switching system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208353057U true CN208353057U (en) | 2019-01-08 |
Family
ID=64884047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820953439.XU Expired - Fee Related CN208353057U (en) | 2018-06-19 | 2018-06-19 | A kind of mother spare power automatic switching control circuit and spare power automatic switching system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208353057U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110138086A (en) * | 2019-05-30 | 2019-08-16 | 深圳市普禄科智能检测设备有限公司 | Telemechanical bus connection switch device, control system and control method |
| CN112952993A (en) * | 2021-04-14 | 2021-06-11 | 东方电气(成都)工程设计咨询有限公司 | Dual-power spare power automatic switching loop control method based on relay lap joint |
-
2018
- 2018-06-19 CN CN201820953439.XU patent/CN208353057U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110138086A (en) * | 2019-05-30 | 2019-08-16 | 深圳市普禄科智能检测设备有限公司 | Telemechanical bus connection switch device, control system and control method |
| CN112952993A (en) * | 2021-04-14 | 2021-06-11 | 东方电气(成都)工程设计咨询有限公司 | Dual-power spare power automatic switching loop control method based on relay lap joint |
| CN112952993B (en) * | 2021-04-14 | 2023-11-17 | 东方电气(成都)工程设计咨询有限公司 | Dual-power supply spare power automatic switching loop control method based on relay lap joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |