CN209029921U - A kind of three inlet wires two contact combined floodgate switching device - Google Patents
A kind of three inlet wires two contact combined floodgate switching device Download PDFInfo
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- CN209029921U CN209029921U CN201821884710.5U CN201821884710U CN209029921U CN 209029921 U CN209029921 U CN 209029921U CN 201821884710 U CN201821884710 U CN 201821884710U CN 209029921 U CN209029921 U CN 209029921U
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Abstract
The technical issues of the purpose of the utility model is to overcome three inlet wire low capacity power supply reliabilities provides a kind of three inlet wires two contact combined floodgate switching device.It includes three incoming line cabinets and two contact cabinets that three inlet wire two, which gets in touch with combined floodgate switching device, and the switch ends of the first contact cabinet are connect through power source bus with the first incoming line cabinet, the second incoming line cabinet respectively；The switch ends of second contact cabinet are connect through power source bus with the second incoming line cabinet, third incoming line cabinet respectively；When only one incoming line cabinet power loss, then a contact cabinet in proximal end is closed conducting, another contact cabinet remains open；When there are two incoming line cabinet power loss, then two contact cabinets are closed conducting.The utility model line construction is concise, and hardware logic realization is easy, reliable, solves three inlet wire low capacity powerup issues conscientiously, to ensure that the stabilization of power supply system.
Description
Technical field
The utility model relates to electric power manufacturing fields, and in particular to a kind of corollary apparatus for the power supply of three inlet wire of electric power.
Background technique
Two-way large capacity 10KV inlet wire power supply mode is current mainstream power supply mode, as shown in Figure 1, two inlet wires of configuration
Cabinet is respectively connected to duplex feeding (from corresponding two transformers), while the bus of the two incoming line cabinet interior powers being passed through
Contact cabinet (bar coupler) connects together.When normal work, bar coupler is disconnected, and two-way power supply is independently-powered；When
All the way (such as failure, maintenance) in the case where power loss, it is closed a floodgate by bar coupler, this two sections of busbar connections is risen
Come, so that load can connect the another way power supply of electricity, to ensure user power utilization.If originally that incoming line cabinet recovery all the way of power loss
It is powered, contact cabinet then disconnects automatically.
In recent years, since shopping centre electricity consumption has been saturated, remaining active volume is got in switching station or outdoor ring main unit
Come smaller.For newly-built or transformation project, traditional two-way large capacity 10KV inlet wire power supply mode gradually cannot
It meets the requirements, three inlet wire low capacity power supply modes become trend；Therefore it powers for three inlet wire low capacities, power supply reliability
Just it is particularly important.
Utility model content
The technical issues of the purpose of the utility model is to overcome three inlet wire low capacity power supply reliabilities, provide one kind three into
Line two gets in touch with combined floodgate switching device.
The solution of the utility model is as follows:
Three inlet wire two gets in touch with combined floodgate switching device, comprising:
First incoming line cabinet, for being connect with the first transformer；
Second incoming line cabinet, for being connect with the second transformer；
Third incoming line cabinet, for being connect with third transformer；
First contact cabinet, switch ends are connect through power source bus with the first incoming line cabinet, the second incoming line cabinet respectively；
Second contact cabinet, switch ends are connect through power source bus with the second incoming line cabinet, third incoming line cabinet respectively；
Logic control circuit meets: for controlling the switch state of three incoming line cabinets and two contact cabinets when only one
Incoming line cabinet power loss, then a contact cabinet in proximal end is closed conducting, another contact cabinet remains open (if second inlet wire
Cabinet power loss is then equivalent to two contact cabinets and is in its proximal end, so making any one contact cabinet closure conducting)；When having
Two incoming line cabinet power loss, then two contact cabinets are closed conducting.
Further, three incoming line cabinets and two contact cabinets pass through the actuating of relay and realize ON/OFF.
Further, the signal input part of logic control circuit load circuit coupling corresponding with each incoming line cabinet, is used for
Detection judge incoming line cabinet whether power loss.
The utility model is compared with prior art:
Line construction is concise, and hardware logic realization is easy, reliable, solves three inlet wire low capacity powerup issues conscientiously,
To ensure that the stabilization of power supply system.
Detailed description of the invention
Fig. 1 is the schematic diagram of traditional two-way inlet wire power supply plan.
Fig. 2 is the functional block diagram of the utility model.
Fig. 3 is control logic (hardware realization) schematic diagram of the utility model.
Specific embodiment
Below in conjunction with attached drawing and embodiment, the technical solution of the utility model is described in further detail.
As shown in Figure 2 and Figure 3, three inlet wire two contact combined floodgate switching device includes: the first inlet wire of the first transformer connection
The third incoming line cabinet and the first incoming line cabinet, second that cabinet, the second incoming line cabinet of the second transformer connection, third transformer connect
The first contact cabinet between incoming line cabinet and the second contact cabinet between the second incoming line cabinet, third incoming line cabinet；The connection of first transformer
The first incoming line cabinet, the connection of the second transformer the connection of the second incoming line cabinet, the contact of connection connects with the first contact cabinet；Second
Second incoming line cabinet of transformer connection, the third incoming line cabinet of third transformer connection connect, and the contact of connection is got in touch with second
Cabinet connection；Logic control circuit meets: for controlling the switch state of three incoming line cabinets and two contact cabinets when only one
Incoming line cabinet power loss, then a contact cabinet in proximal end is closed conducting, another contact cabinet remains open (if second inlet wire
Cabinet power loss is then equivalent to two contact cabinets and is in its proximal end, so making any one contact cabinet closure conducting)；When having
Two incoming line cabinet power loss, then two contact cabinets are closed conducting.
The concrete operating principle of the utility model is as shown in Figure 3: respective by being connected when three inlet wire low capacities are powered
Incoming line cabinet powering load, corresponding with each incoming line cabinet load circuit coupling of the signal input part of logic control circuit uses
In detection judge incoming line cabinet whether power loss.Three incoming line cabinets and two contact cabinets can be realized by the actuating of relay leads on/off
It opens.When logic control circuit detects that the first incoming line cabinet powering load short circuit occurs or has a power failure, pass through trigger relay
Disconnect the first incoming line cabinet, the first contact cabinet is connected and the second contact cabinet is kept to disconnect, to guarantee that the power supply of the first incoming line cabinet is negative
Carry normal power supply；As long as similarly guaranteeing the first incoming line cabinet, the second incoming line cabinet, third incoming line cabinet, the first contact cabinet, the second contact cabinet
It powers wherein no more than three conductings, can switch mutually and meet load equipment power supply uninterruptedly, to ensure that power supply system
Stability.
The above is only the preferred embodiment of the utility model only, is not limitation of the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on also fall into the guarantor of the utility model
Within the scope of shield.
Claims (3)
1. a kind of three inlet wires two get in touch with combined floodgate switching device characterized by comprising
First incoming line cabinet, for being connect with the first transformer；
Second incoming line cabinet, for being connect with the second transformer；
Third incoming line cabinet, for being connect with third transformer；
First contact cabinet, switch ends are connect through power source bus with the first incoming line cabinet, the second incoming line cabinet respectively；
Second contact cabinet, switch ends are connect through power source bus with the second incoming line cabinet, third incoming line cabinet respectively；
Logic control circuit meets: for controlling the switch state of three incoming line cabinets and two contact cabinets when only one inlet wire
Cabinet power loss, then a contact cabinet in proximal end is closed conducting, another contact cabinet remains open；When there are two incoming line cabinets to lose
Electricity, then two contact cabinets are closed conducting.
2. three inlet wire two according to claim 1 gets in touch with combined floodgate switching device, it is characterised in that: three incoming line cabinets and two
Contact cabinet passes through the actuating of relay and realizes ON/OFF.
3. three inlet wire two according to claim 2 gets in touch with combined floodgate switching device, it is characterised in that: the logic control circuit
Signal input part corresponding with each incoming line cabinet load circuit coupling, for detect judge incoming line cabinet whether power loss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821884710.5U CN209029921U (en) | 2018-11-15 | 2018-11-15 | A kind of three inlet wires two contact combined floodgate switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821884710.5U CN209029921U (en) | 2018-11-15 | 2018-11-15 | A kind of three inlet wires two contact combined floodgate switching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209029921U true CN209029921U (en) | 2019-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821884710.5U Active CN209029921U (en) | 2018-11-15 | 2018-11-15 | A kind of three inlet wires two contact combined floodgate switching device |
Country Status (1)
| Country | Link |
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| CN (1) | CN209029921U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111614156A (en) * | 2020-06-24 | 2020-09-01 | 广东金升电器股份有限公司 | Anti-collision interconnection lock for switching power supply |
| CN113541125A (en) * | 2021-06-09 | 2021-10-22 | 广东电网有限责任公司广州供电局 | Power supply device |
-
2018
- 2018-11-15 CN CN201821884710.5U patent/CN209029921U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111614156A (en) * | 2020-06-24 | 2020-09-01 | 广东金升电器股份有限公司 | Anti-collision interconnection lock for switching power supply |
| CN113541125A (en) * | 2021-06-09 | 2021-10-22 | 广东电网有限责任公司广州供电局 | Power supply device |
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