CN205103326U - Take transformer of ageing platform circuit of three -phase inverter of control by temperature change protection - Google Patents
Take transformer of ageing platform circuit of three -phase inverter of control by temperature change protection Download PDFInfo
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- CN205103326U CN205103326U CN201520761644.2U CN201520761644U CN205103326U CN 205103326 U CN205103326 U CN 205103326U CN 201520761644 U CN201520761644 U CN 201520761644U CN 205103326 U CN205103326 U CN 205103326U
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Abstract
The utility model discloses a take transformer of ageing platform circuit of three -phase inverter of control by temperature change protection installs on the control cabinet of the ageing platform of dc -to -ac converter, including three -phase star transformer, temperature controller, K type thermocouple sensor, ac contactor, alternating current circuit ware, yellow trouble lamp. The utility model provides a pair of the transformer input can be closed to the ageing platform circuit of three -phase inverter of transformer area control by temperature change protection when the three -phase transformer temperature is higher than the settlement temperature value, when the settlement temperature value is dropped to the transformer, and the input of switch -on transformer, the work of assurance transformer is under the state of safety.
Description
Technical field
The utility model relates to a kind of transformer of the three-phase inverter aging platform circuit with temperature control protection, for inverter ageing management platform.
Background technology
Under current non-renewable energy resources day by day shortage, weather sharply changes, environment goes from bad to worse global context, wind energy and sun power are subject to various countries as renewable, the environmental protection energy and show great attention to, and also will be the Main way of the current utilization of new energy resources of China.At new energy development and utilize in process, wind energy inverter and solar inverter are then key components wind energy or sun power being converted into electric energy, and inverter aging platform is then carry out an Important Platform of quality inspection in quality inspection process to inverter.
Application number: 201320368071.8 disclose the automatic temperature-controlled of burn-in test platform and safety power-off device, charger group is connected to 220V mains lighting supply input end by intelligent control circuit, battery pack is connected with by battery charger between power input and intelligent control circuit, battery pack is connected with current detection circuit charger group after adjacent two charger groups through energy consumption compensating circuit successively, energy consumption compensating circuit realizes carrying out energy consumption compensatory control to each charger group, intelligent control circuit comprises the failure alarm circuit with charger group fault alarm function, show the display circuit of fault charger group position, there is the timing control circuit of timing function, hygrosensor circuit and power-down circuit.The beneficial effect of this utility model is: nonpolarity timing operation, realizes full-automatic quality testing and automatic temperature-controlled and safe power-off, saves cost.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of transformer of three-phase inverter aging platform circuit with temperature control protection, with the transformer overcoming aging platform in the course of the work Yin Wendu raise the defect causing transformer damage.
For solving the problems of the technologies described above, the utility model provides a kind of transformer of the three-phase inverter aging platform circuit with temperature control protection, is arranged on the control desk of inverter aging platform, comprises three-phase transformer, wherein:
Described three-phase transformer is three-phase star transformer, mounting temperature sensor on its silicon steel sheet, and one end of described three-phase transformer is connected to inverter direct-flow side through three-phase commutation bridge, AC circuit breaker two, and its N interface connects the power supply input N end of temperature controller; The other end of described three-phase transformer is connected with master switch AC circuit breaker one through A.C. contactor KMI;
Described AC circuit breaker is connected to inverter ac side once alternating current interruption three, and the L end of extraction connects the power supply input L end of temperature controller;
The contactor coil of the A.C. contactor KMI between L and N end is in parallel with a high temperature pilot lamp, and the temperature controller normally opened contact 1 described in described contactor coil connects, described high temperature pilot lamp connects temperature controller normally opened contact 2.
The utility model higher than closing transformer input during set temperature value, when set temperature value is down to by transformer, connects transformer input, under ensureing that transformer is operated in safe state in three-phase transformer temperature.
Described sensor is selected from K type thermocouple sensor.
Principle of the present utility model is: when aging platform because of operating ambient temperature raise, load the reasons such as excessive and inside transformer coil short cause transformer temperature raise excessive time protection is provided; in the transformer of aging platform is always worked in temperature range that self class of insulation specifies, transformer is avoided to cause reduced lifetime maybe cannot work because temperature rise is excessive.Temperature sensor (thermopair) is arranged on transformer silicon steel sheet, by temperature controller/instrument capping temperature and lower limit temperature, when transformer temperature rise is bigger than normal and when making the temperature of sensor measurement point reach temperature controller upper limit set temperature, temperature controller disconnecting transformer input power, aging platform stops exporting, and lights alarm lamp with prompting simultaneously.When measurement point temperature is lower than temperature controller lower limit set temperature, transformer input power connected by temperature controller, and aging platform continues to export.
The utility model compared with prior art, strengthens safety in utilization.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram;
Number in the figure illustrates:
1---three-phase star transformer; 2---three-phase commutation bridge;
3---temperature controller;
31---relay normally open contact one; 32---relay normally open contact two;
4---yellow indicator lamp;
K1---AC circuit breaker one; K2---AC circuit breaker two; K3---alternating current interruption three;
KMI---A.C. contactor.
Embodiment
Fig. 1 is shown in the utility model schematic diagram, and a kind of transformer of the three-phase inverter aging platform circuit with temperature control protection, is arranged on the control desk of inverter aging platform, comprises three-phase transformer, wherein:
Mounting temperature sensor on the silicon steel sheet of described three-phase star transformer 1, one end of described three-phase star transformer 1 is connected to inverter direct-flow side through three-phase commutation bridge 2, AC circuit breaker two K2, and its N interface connects the power supply input N end of temperature controller 3; The other end of described three-phase star transformer 1 is connected with master switch AC circuit breaker one K1 through A.C. contactor KMI;
Described AC circuit breaker one K1 is connected to inverter ac side through AC circuit breaker three K3, and the L end of extraction connects the power supply input L end of temperature controller 3;
The contactor coil of the A.C. contactor KMI between L and N end is in parallel with a yellow high temperature pilot lamp 4, temperature controller relay normally open contact 1 described in described contactor coil connects, described high temperature pilot lamp connects temperature controller relay normally open contact 2 32.
In the present embodiment, described sensor is selected from K type thermocouple sensor.
During actual use, under A.C. contactor normality (coil is not powered), main contact is normally closed.
As shown in Figure 1, after the master switch that closes, temperature controller has power supply to input, temperature sensor K type thermopair detects that transformer initial temperature is lower, temperature controller relay is failure to actuate, therefore yellow indicator lamp (L-is yellow) goes out, and A.C. contactor keeps normality (main circuit contact is normally closed).Now be connected with three-phase inverter input, output by AC circuit breaker two K2, AC circuit breaker three K3.Under three-phase transformer is operated in up-set condition, when temperature constantly raises and reaches temperature controller 3 upper limit set temperature, the temperature controller actuating of relay, relay normally open contact 1 and relay normally open contact 2 32 are converted into normally off by normally open, cause the bright warning of yellow indicator lamp 4 lamp, and main contacts is often opened by normally closed being converted into after A.C. contactor KMI coil electricity, three-phase transformer input disconnects with electrical network and quits work; After transformer quits work, temperature starts to decline, when being down to temperature controller lower limit set temperature, relay normally open contact 1 and relay normally open contact 2 32 are converted into normally open by normally off, yellow indicator lamp 4 extinguishes, A.C. contactor KMI main contacts is converted into normally off from normally open, three-phase transformer input is connected with electrical network, and aging platform continues to power to three-phase inverter.Temperature controller 3 ceiling temperature and lower limit temperature are arranged according to actual conditions by staff.
The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. a transformer for the three-phase inverter aging platform circuit with temperature control protection, is arranged on the control desk of inverter aging platform, comprises three-phase transformer, it is characterized in that:
Described three-phase transformer is three-phase star transformer, mounting temperature sensor on its silicon steel sheet, and one end of described three-phase transformer is connected to inverter direct-flow side through three-phase commutation bridge, AC circuit breaker two, and its N interface connects the power supply input N end of temperature controller; The other end of described three-phase transformer is connected with master switch AC circuit breaker one through A.C. contactor KMI;
Described AC circuit breaker is connected to inverter ac side once AC circuit breaker three, and the L end of extraction connects the power supply input L end of temperature controller;
The contactor coil of the A.C. contactor KMI between L and N end is in parallel with a high temperature pilot lamp, and the temperature controller relay normally open contact 1 described in described contactor coil connects, described high temperature pilot lamp connects temperature controller relay normally open contact 2.
2. the transformer of the three-phase inverter aging platform circuit of band temperature control protection according to claim 1, is characterized in that: described sensor is selected from K type thermocouple sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520761644.2U CN205103326U (en) | 2015-04-28 | 2015-09-29 | Take transformer of ageing platform circuit of three -phase inverter of control by temperature change protection |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2015202642826 | 2015-04-28 | ||
| CN201520264282 | 2015-04-28 | ||
| CN201520761644.2U CN205103326U (en) | 2015-04-28 | 2015-09-29 | Take transformer of ageing platform circuit of three -phase inverter of control by temperature change protection |
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| Publication Number | Publication Date |
|---|---|
| CN205103326U true CN205103326U (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520761644.2U Active CN205103326U (en) | 2015-04-28 | 2015-09-29 | Take transformer of ageing platform circuit of three -phase inverter of control by temperature change protection |
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| CN (1) | CN205103326U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192912A (en) * | 2017-07-14 | 2017-09-22 | 国网河南省电力公司濮阳供电公司 | Distribution box failure detector circuit |
-
2015
- 2015-09-29 CN CN201520761644.2U patent/CN205103326U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192912A (en) * | 2017-07-14 | 2017-09-22 | 国网河南省电力公司濮阳供电公司 | Distribution box failure detector circuit |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315700, No. 57, golden access road, Binhai Industrial Park, Xiangshan County, Ningbo, Zhejiang Patentee after: Jinlang Technology Co., Ltd Address before: 315700, No. 57, golden access road, Binhai Industrial Park, Xiangshan County, Ningbo, Zhejiang Patentee before: NINGBO GINLONG NEW ENERGY TECHNOLOGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |