CN206977048U - A kind of device for the automatic commutation power supply of three-phase - Google Patents
A kind of device for the automatic commutation power supply of three-phase Download PDFInfo
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- CN206977048U CN206977048U CN201621112651.0U CN201621112651U CN206977048U CN 206977048 U CN206977048 U CN 206977048U CN 201621112651 U CN201621112651 U CN 201621112651U CN 206977048 U CN206977048 U CN 206977048U
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Abstract
It the utility model is related to a kind of device for the automatic commutation power supply of three-phase, including housing, binding post, indicator lamp and corresponding indicator lamp are provided with housing and defines end, described indicator lamp one end is connected with binding post respectively, and the indicator lamp other end defines end with corresponding indicator lamp respectively and is connected.The utility model is in the case where three-phase not exclusively disconnects, powered to the load using what the present apparatus can continue for, eliminate because a problem of phase or two-phase power-off result in powering, and the utility model can have more phases to select for single-phase electricity consumption, a fixed phase was typically chosen in the past as output phase, so it is easy for converter occur once going wrong, power supply for electrical equipment can not just be given, so that converter must be changed, or even also to check whether three-phase circuit goes wrong.
Description
Technical field
It the utility model is related to a kind of device for the automatic commutation power supply of three-phase.
Background technology
It is known that single-phase electricity used in daily is transformed by three-phase electricity, but if go out in three phase mains
An existing phase is abnormal, or even multiphase is abnormal, just can not normal power supply.
If when electrical appliance is used, this thing happens,
Harm to computer：When running into instant cut-off, magnetic head frictional disk when hard-disk system can be due to driving power deficiency
Piece, get off will result in the physical damage of magnetic track for a long time.And the data in internal memory can not timely dynamic refresh, be currently running
Program and the data of transmission can cause program crash and loss of data due to being forced to interrupt.
Harm to electromagnetism original paper：Electromagnetic switch, electromagnetic type relay etc. are likely to result in contact and broken in unexpected power-off
Open or adhesive and switch is in opposite position, cause circuit abnormal.
Harm to motor：
Motor is running into power-off suddenly, the rotor of motor because inertia operates still according to initial situation, therefore its
Magnetic linkage will not be mutated, and caused original rotor current to exist and will be produced air-gap flux as exciting curent, so that
Winding both ends produce counter electromotive force, at this moment become generator, if now sent a telegram here, supply voltage and counter electromotive force are anti-phase, then
The impact of stator current and electromagnetic torque, which is returned, reaches maximum, and other branch roads are had an impact.
In the application of three-phase alternating-current supply, if a phase or two-phase voltage are low, and single-phase electric devices are still desired to
Normally phase voltage it can work, the present apparatus can solve this problem.
Utility model content
The purpose of this utility model is：In order to solve above-mentioned technical problem, there is provided it is automatic that one kind is used for three-phase
The device of commutation power supply.
The utility model is achieved through the following technical solutions：
A kind of device for three-phase automatic commutation power supply, including housing, binding post, indicator lamp and right are provided with housing
Indicator lamp is answered to define end, described indicator lamp one end is connected with binding post respectively, and the indicator lamp other end indicates with corresponding respectively
Lamp defines end and is connected.
Further, the binding post includes input terminal and lead-out terminal, and input terminal passes through breaker and ABC respectively
Three-phase electrically connects, and lead-out terminal connects with load.
Further, the input terminal includes three-phase electric connection terminal, and the voltage of three-phase electricity is exchange 380V ± 10%.
Further, the lead-out terminal can load-carrying power be alternating current 220V 5A.
In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：
1st, the utility model supplies in the case where three-phase not exclusively disconnects using what the present apparatus can continue for load
Electricity, eliminate because a problem of phase or two-phase power-off result in powering.
2nd, the utility model can have more phases to select for single-phase electricity consumption, be typically chosen a fixed phase in the past
As output phase, so it is easy for converter occur once going wrong, can not just gives power supply for electrical equipment, and must change
Converter, or even also to check whether three-phase circuit goes wrong.
3rd, the utility model has widespread popularity, the price of relative moderate, huge application market and easy behaviour
Make technique so that it has in three-phase electricity conversion equipment more uses space.
Brief description of the drawings
The utility model will illustrate by example and with reference to the appended drawing, wherein：
Fig. 1 is the display schematic diagram that binding post, indicator lamp and corresponding indicator lamp of the present utility model define end；
Fig. 2 is that the utility model enters circuit, the wiring diagram loaded with master；
Fig. 3 is electrical block diagram of the present utility model；
Fig. 4 is structural representation of the present utility model；
Shown in figure：1-binding post, 2-indicator lamp, 3-corresponding indicator lamp define end, and ABC-three-phase electricity, L/N-
Output end, N-zero line, K1, K2, K3 --- A.C. contactor, K1/NC1, K1/NC2, K2/NC1-contactor normally closed contact,
K1/N0, K2/N0, K3/N0-contactor normal opened contact ,-indicator lamp.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
This specification（Including any accessory claim, summary and accompanying drawing）Disclosed in any feature, except non-specifically chatting
State, can alternative features equivalent by other or with similar purpose replaced.I.e., unless specifically stated otherwise, each feature
It is an example in a series of equivalent or similar characteristics.
The automatic commutation electric supply installation of ZT-SCM100 series three phases of the present utility model be primarily adapted for use in the outer/inner switch cubicle in family,
The power supply of a variety of self-contained electric system Instrumental instrument such as middle-placed switch cabinet, hands injured, fixed cabinet, ring main unit.With automatic identification three-phase
Powered and display function, judges phase shortage and adjust automatically load supplying circuit, the functions such as the working power of proof load is uninterrupted.
As depicted in figs. 1 and 2, a kind of device for the automatic commutation power supply of three-phase, including housing, housing is interior to be provided with wiring
Terminal 1, indicator lamp 2 and corresponding indicator lamp define end 3, and described one end of indicator lamp 2 is connected with binding post 1 respectively, indicator lamp 2
The other end defines end 3 with corresponding indicator lamp respectively and is connected, and the binding post 2 includes input terminal and lead-out terminal, input
Terminal is electrically connected by breaker with ABC three-phases respectively, and lead-out terminal connects with load.Input terminal of the present utility model is necessary
Being electrically connected by breaker with ABC three-phases, interference not being produced to main line during for protecting load to break down.
As shown in Figure 1 to Figure 3, the present apparatus is in actual use, after device correctly connects according to wiring diagram, Fang Keshang
Electricity, if three-phase is powered, ABC indicator lamps are lit, while O indicator lamps can also light；When A phases are powered, A phase indicator lamps
Light；When B phases are powered, B phase indicator lamps light；When C phases are powered, C phase indicator lamps light；If output end L/N is powered, O
Indicator lamp lights；Wherein N connecting to neutral line.
Present apparatus powering load priority is A->B->C, i.e. ABC are simultaneously powered, and the power supply of load is supplied by A phases, BC
Simultaneously powered, load power source is supplied by B phases.
Particular technique index request of the present utility model such as table 1：
Table 1
The utility model has automatic identification three-phase powered and display function, can interpolate that phase shortage and adjust automatically load supplies
Electric line, the functions such as the working power of proof load is uninterrupted.
As shown in figure 4, the automatic commutation electric supply installation of three-phase uses panel mounting means, fixed with support.
Particular embodiments described above, the purpose of this utility model, technical scheme and beneficial effect are carried out to enter one
Step describes in detail, should be understood that and the foregoing is only specific embodiment of the utility model, is not limited to this
Utility model.The utility model expands to any new feature disclosed in this manual or any new combination, and discloses
Any new method or process the step of or any new combination.
Claims (3)
- A kind of 1. device for three-phase automatic commutation power supply, it is characterised in that including housing, be provided with housing binding post, Indicator lamp and corresponding indicator lamp define end, and described indicator lamp one end is connected with binding post respectively, indicator lamp other end difference End is defined with corresponding indicator lamp to be connected, the binding post includes input terminal and lead-out terminal, and input terminal passes through respectively Breaker electrically connects with ABC three-phases, and lead-out terminal connects with load.
- A kind of 2. device for the automatic commutation power supply of three-phase as claimed in claim 1, it is characterised in that the input terminal Including three-phase electric connection terminal, the voltage of three-phase electricity is exchange 380V ± 10%.
- A kind of 3. device for the automatic commutation power supply of three-phase as claimed in claim 1, it is characterised in that the lead-out terminal Can load-carrying power be alternating current 220V 5A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621112651.0U CN206977048U (en) | 2016-10-11 | 2016-10-11 | A kind of device for the automatic commutation power supply of three-phase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621112651.0U CN206977048U (en) | 2016-10-11 | 2016-10-11 | A kind of device for the automatic commutation power supply of three-phase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206977048U true CN206977048U (en) | 2018-02-06 |
Family
ID=61413147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621112651.0U Active CN206977048U (en) | 2016-10-11 | 2016-10-11 | A kind of device for the automatic commutation power supply of three-phase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206977048U (en) |
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2016
- 2016-10-11 CN CN201621112651.0U patent/CN206977048U/en active Active
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