CN204287430U - A kind of isolating switch low-voltage divide-shut brake proving installation - Google Patents
A kind of isolating switch low-voltage divide-shut brake proving installation Download PDFInfo
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- CN204287430U CN204287430U CN201420858320.6U CN201420858320U CN204287430U CN 204287430 U CN204287430 U CN 204287430U CN 201420858320 U CN201420858320 U CN 201420858320U CN 204287430 U CN204287430 U CN 204287430U
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- 238000004891 communication Methods 0.000 claims description 22
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- 230000009471 action Effects 0.000 claims description 5
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- 238000012360 testing method Methods 0.000 description 20
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 7
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- 230000007246 mechanism Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
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- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a kind of isolating switch low-voltage divide-shut brake proving installation, comprise: ac/dc modular converter and the first DC/DC conversion module, also comprise: sampling control circuit and for selecting the button of voltage, described sampling control circuit comprises: sample circuit, the first voltage sample control circuit and processor.Isolating switch low-voltage divide-shut brake proving installation provided by the utility model, current value and the magnitude of voltage of the first DC/DC conversion module output can be gathered by sample circuit, thus more comprehensively analyze the performance of isolating switch, improve the accuracy of isolating switch low-voltage divide-shut brake proving installation further.In addition, conveniently magnitude of voltage can be chosen by button, processor is according to magnitude of voltage formation voltage control command and be sent to the first voltage sample control circuit, makes the first DC/DC conversion module export corresponding magnitude of voltage according to this order by the control of the first voltage sample control circuit.
Description
Technical field
The utility model relates to breaker technical field, particularly relates to a kind of isolating switch low-voltage divide-shut brake proving installation.
Background technology
The test of isolating switch low-voltage divide-shut brake is an important content of circuit breaker characteristic test, is mainly used to investigate the sensitivity of breaker coil and reliability and the performance of whole operating mechanism under non-rated voltage.Such as, for the operating mechanism of isolating switch, as hydraulic pressure, elasticity and pneumatic etc., in long-time running, divide-shut brake release electromagnet often deforms, the situations such as puckery or dirty adhesion of becoming rusty, and makes electromagnet action smooth and causes isolating switch tripping.
At present, in isolating switch low-voltage divide-shut brake test process, the test of low-voltage is only carried out in the motion test for isolating switch.The divide-shut brake scope that this test specifies is comparatively wide in range, such as, for slight distortion, the situation such as puckery of becoming rusty, although meet the scope of normal regulation in this test process, may there is potential defect in divide-shut brake loop.If operating mechanism exists the problems such as rust is puckery and do not detect, then may cause isolating switch tripping, cause serious electric power accident.
As can be seen here, the height by means of only operation voltage judges the state of isolating switch, and the reliability detected for whole divide-shut brake loop is lower, effectively can not reflect the defect that isolating switch is potential.
Utility model content
The purpose of this utility model is to provide a kind of isolating switch low-voltage divide-shut brake proving installation, for the performance of test both opens device.
For solving the problems of the technologies described above, the utility model provides a kind of isolating switch low-voltage divide-shut brake proving installation, comprise: ac/dc modular converter and for providing the first DC/DC conversion module of low-voltage action power, the input end of described first DC/DC conversion module is connected with the output terminal of described ac/dc modular converter, also comprise: sampling control circuit and for selecting the button of voltage, described sampling control circuit comprises:
For gathering the sample circuit of described first DC/DC conversion module output current and voltage, the input end of described sample circuit is connected with the output terminal of described first DC/DC conversion module;
For sampling and feeding back the first voltage sample control circuit of described first DC/DC conversion module output voltage, described first voltage sample control circuit is connected with described first DC/DC conversion module communication;
For the processor of sampling and control, the input end of described processor is connected with the output terminal of described sample circuit, and described processor and described first voltage sample control circuit communicate to connect;
Described button is connected with the input end of described processor.
Preferably, also comprise:
For providing the second DC/DC conversion module of direct supply, the input end of described second DC/DC conversion module is connected with the output terminal of described ac/dc modular converter;
Wherein, described sampling control circuit also comprises: for sampling and feeding back the second voltage sample control circuit of described second DC/DC conversion module output voltage; Described second Control of Voltage sample circuit is connected with described second DC/DC conversion module communication, and described second voltage sample control circuit is connected with described processor communication.
Preferably, also comprise: the usb communication module be connected with described processor output terminal and display screen.
Preferably, described ac/dc modular converter is specially: rectification circuit.
Preferably, described AC power output AC 220V voltage.
Preferably, the scope of the output voltage of described first DC/DC conversion module is: 0-265V, and the output voltage of described second DC/DC conversion module is: 110V or 220V.
Preferably, described first DC/DC conversion module and described second DC/DC conversion module specifically comprise:
The first filtering circuit be connected with described rectification circuit output end;
The the first bridge-type chopper circuit be connected with described filtering circuit output terminal;
The first booster circuit be connected with described first bridge-type chopper circuit output terminal;
The first high-frequency rectification circuit be connected with described first booster circuit output terminal;
The LC filtering circuit be connected with described first high-frequency rectification circuit output terminal;
The second filtering circuit be connected with described rectification circuit output end;
The the second bridge-type chopper circuit be connected with described filtering circuit output terminal;
The second booster circuit be connected with described second bridge-type chopper circuit output terminal;
The second high-frequency rectification circuit be connected with described second booster circuit output terminal;
The 2nd LC filtering circuit be connected with described second high-frequency rectification circuit output terminal;
Wherein, the input end of described first filtering circuit is as the input end of described first DC/DC conversion module, and the output terminal of a described LC filtering circuit is as the output terminal of described first DC/DC conversion module; The input end of described second filtering circuit is as the input end of described second DC/DC conversion module, and the output terminal of described 2nd LC filtering circuit is as the output terminal of described second DC/DC conversion module.
Preferably, described first voltage sample control circuit specifically comprises:
The first feedback circuit be connected with a described LC filtering circuit output terminal;
The SG3525 control chip be connected with described first feedback circuit output;
The first isolating transformer be connected with a described SG3525 control chip output terminal;
Wherein, the output terminal of described first isolating transformer is connected with the input end of described first bridge-type chopper circuit, and described first feedback circuit is connected with described processor communication;
Described second voltage sample control circuit specifically comprises:
The second feedback circuit be connected with described 2nd LC filtering circuit output terminal;
The 2nd SG3525 control chip be connected with described second feedback circuit output;
The second isolating transformer be connected with described 2nd SG3525 control chip output terminal;
Wherein, the output terminal of described second isolating transformer is connected with the input end of described second bridge-type chopper circuit, and described second feedback circuit is connected with described processor communication.
Preferably, described sample circuit specifically comprises:
The current sampling circuit be connected with a described LC filtering circuit output terminal;
The current/voltage converter circuit be connected with described current sampling circuit output terminal;
The first low-pass filter circuit be connected with described current/voltage converter circuit output terminal;
The first amplifying circuit be connected with described first low-pass filter circuit output terminal;
The voltage sampling circuit be connected with a described LC filtering circuit output terminal;
The signal conditioning circuit be connected with described voltage sampling circuit output terminal;
The second low-pass filter circuit be connected with described signal conditioning circuit output terminal;
The second amplifying circuit be connected with described second low-pass filter circuit output terminal;
The A/D conversion chip be all connected with the output terminal of described first amplifying circuit and the output terminal of described second amplifying circuit;
Wherein, the output terminal of described A/D conversion chip is connected with the input end of described processor as the output terminal of described sample circuit.
Preferably, also comprise:
For connecting the connecting line of described isolating switch low-voltage divide-shut brake proving installation and isolating switch to be tested;
Described connecting line is arranged at the output terminal of described first DC/DC conversion module and the output terminal of described second DC/DC conversion module.
Isolating switch low-voltage divide-shut brake proving installation provided by the utility model, current value and the magnitude of voltage of the first DC/DC conversion module output can be gathered by sample circuit, thus more comprehensively analyze the performance of isolating switch, improve the accuracy of isolating switch low-voltage divide-shut brake proving installation further.In addition, conveniently magnitude of voltage can be chosen by button, processor is according to magnitude of voltage formation voltage control command and be sent to the first voltage sample control circuit, makes the first DC/DC conversion module export corresponding magnitude of voltage according to this order by the control of the first voltage sample control circuit.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment, simple introduction is done below by the accompanying drawing used required in embodiment, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural drawing of a kind of isolating switch low-voltage divide-shut brake proving installation that Fig. 1 provides for the utility model;
The structural drawing of the another kind of isolating switch low-voltage divide-shut brake proving installation that Fig. 2 provides for the utility model;
The structural drawing of the another kind of isolating switch low-voltage divide-shut brake proving installation that Fig. 3 provides for the utility model;
The structural drawing of the another kind of isolating switch low-voltage divide-shut brake proving installation that Fig. 4 provides for the utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making under creative work prerequisite, and the every other embodiment obtained, all belongs to the utility model protection domain.
Core of the present utility model is to provide a kind of isolating switch low-voltage divide-shut brake proving installation.
In order to make those skilled in the art person understand the utility model scheme better, below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment one
A kind of isolating switch low-voltage divide-shut brake proving installation, comprise: ac/dc modular converter and for providing the first DC/DC conversion module of low-voltage action power, the input end of described first DC/DC conversion module is connected with the output terminal of described ac/dc modular converter; Also comprise: sampling control circuit and for selecting the button of voltage.
Described sampling control circuit comprises:
For gathering the sample circuit of described first DC/DC conversion module output current and voltage, the input end of described sample circuit is connected with the output terminal of described first DC/DC conversion module;
For sampling and feeding back the first voltage sample control circuit of described first DC/DC conversion module output voltage, described first voltage sample control circuit is connected with described first DC/DC conversion module communication;
For the processor of sampling and control, the input end of described processor is connected with the output terminal of described sample circuit, and described processor and described first voltage sample control circuit communicate to connect;
Described button is connected with the input end of described processor.
The structural drawing of a kind of isolating switch low-voltage divide-shut brake proving installation that Fig. 1 provides for the utility model.Ac/dc modular converter 10 is connected with AC power, for alternating current is converted to direct current, for the first DC/DC conversion module 11.The function of the first DC/DC conversion module 11 is changed by the direct current that ac/dc modular converter 10 exports, the low-voltage action power tested to provide isolating switch.
Because isolating switch 14 is in low voltage test process, the scope that divide-shut brake specifies is comparatively wide in range, cannot find the fault that isolating switch 14 is potential and defect.In concrete enforcement, if only tested according to the height of isolating switch 14 operation voltage, then possibly cannot test out for the slight deformation of operating mechanism, the situation such as puckery of becoming rusty, finally may cause isolating switch 14 tripping.Isolating switch 14 is when separating brake, combined floodgate, and the current value of its coil and performance number have important reference information, such as, and the state of the iron gate that iron core stroke is connected with core ejector rod and valve, the auxiliary contact situation in point (conjunction) loop and switching time etc.Therefore, increase sample circuit 121, gather electric current and voltage by sample circuit 121, provide important reference frame for the whether good of state analyzing isolating switch 14.
The specific works mode of sampling process is: the output terminal of the first DC/DC conversion module 11 is connected with the input end of the sample circuit 121 in sampling control circuit 12.Sample circuit 121 is for gathering current value and the magnitude of voltage of the first DC/DC conversion module 11 output, and the current value collected and magnitude of voltage are transferred in processor 123 by its output terminal, processor 123 is according to current sampled value (current value and magnitude of voltage) rated output.Such as, can export result of calculation and sampled value to host computer, host computer by analyzing transient current value and power, and in conjunction with test result, judges the performance of isolating switch.
The specific works mode of control procedure is:
Button 13 is connected with the input end of processor 123, can be selected the output voltage values of the first DC/DC conversion module 11 by button 13.13 are pushed button in relevant position, the magnitude of voltage that then connected processor 123 just can characterize according to this key position generates corresponding Control of Voltage order, and be sent to the first voltage sample control circuit 122, first voltage sample control circuit 122 controls the output voltage of the first DC/DC conversion module 11 according to control command, thus provides multiple low voltage test value for isolating switch 14.
The isolating switch low-voltage divide-shut brake proving installation that the present embodiment provides, current value and the magnitude of voltage of the first DC/DC conversion module output can be gathered by sample circuit, thus more comprehensively analyze the performance of isolating switch, improve the accuracy of isolating switch low-voltage divide-shut brake proving installation further.In addition, conveniently magnitude of voltage can be chosen by button, processor is according to magnitude of voltage formation voltage control command and be sent to the first voltage sample control circuit, makes the first DC/DC conversion module export corresponding magnitude of voltage according to this order by the control of the first voltage sample control circuit.
Embodiment two
On the basis of embodiment one, isolating switch low-voltage divide-shut brake proving installation, also comprises:
For providing the second DC/DC conversion module of direct supply, the input end of described second DC/DC conversion module is connected with the output terminal of described ac/dc modular converter;
Wherein, described sampling control circuit also comprises: for sampling and feeding back the second voltage sample control circuit of described second DC/DC conversion module output voltage; Described second Control of Voltage sample circuit is connected with described second DC/DC conversion module communication, and described second voltage sample control circuit is connected with described processor communication.
The structural drawing of the another kind of isolating switch low-voltage divide-shut brake proving installation that Fig. 2 provides for the utility model.For the isolating switch being provided with closing locking device, site test is inconvenient, and in isolating switch site test, energy storage motor needs manual energy storage, and the time causing process of the test to expend is longer, and efficiency is lower.In concrete enforcement, for the isolating switch being provided with closing locking device, because closing locking electromagnet must not be electric, and then closing circuit not conducting, now isolating switch is in blocking, all can not close a floodgate in electrical equipment and mechanical playground, therefore, carrying out must first being unlocked under rated voltage by closing locking electromagnet in isolating switch low-voltage divide-shut brake testing experiment just can testing.
Therefore, the present embodiment connects a second DC/DC conversion module 20 at the output terminal of ac/dc modular converter 10, provides direct supply by this module 20, for isolating switch 14 unlocking be energy storage motor energy storage.Sampling control circuit 12 also comprises: the second voltage sample control circuit 21.Second voltage sample control circuit 21 is connected with described second DC/DC conversion module communication, and the magnitude of voltage for the second DC/DC conversion module 20 being exported is sampled and transferred to processor 123.Different magnitudes of voltage is chosen by button 13, processor 123 formation voltage control command, Control of Voltage order is sent to the second voltage sample control circuit 21, second voltage sample control circuit 21 to control the second DC/DC conversion module 20 according to this order and export corresponding magnitude of voltage.
The present embodiment provides direct supply by increase by second DC/DC conversion module, unlocks and motor energy storage, improve the efficiency of process of the test, save time for the blocking device for isolating switch.
Embodiment three
As one preferred embodiment, on the basis of above-described embodiment, also comprise: the usb communication module be connected with described processor output terminal and display screen.
The structural drawing of the another kind of isolating switch low-voltage divide-shut brake proving installation that Fig. 3 provides for the utility model.Because embodiment one and embodiment two describe the specific works process of isolating switch low-voltage divide-shut brake proving installation in detail, therefore wouldn't repeat here.The present embodiment only illustrates principle of work and the structure of usb communication module 30 and display screen 31.Sampled result in processor 123 derives by usb communication module 30, and can be used for host computer analyzing and processing, display screen 31, by being connected with the output terminal of processor 123, can show sampled result.
Sampled result is derived by usb communication module by the present embodiment, checks sampled result by display screen, and can conveniently check, cost is low.
Embodiment four
On the basis of embodiment three, as one preferred embodiment, described ac/dc modular converter is specially: rectification circuit.
The structural drawing of the another kind of isolating switch low-voltage divide-shut brake proving installation that Fig. 4 provides for the utility model.Be connected with AC power 100 by rectification circuit 10, the alternating current that AC power 100 exports is converted to direct current.
By rectification circuit as ac/dc modular converter, structure is simple, and cost is low.
As one preferred embodiment, described AC power output AC 220V voltage.
As one preferred embodiment, the scope of the output voltage of described first DC/DC conversion module is: 0-265V, and the output voltage of described second DC/DC conversion module is: 110V or 220V.
AC power 100 output AC 220V voltage, is converted to direct current 220V by rectification circuit 10 by 220V alternating current, exports the first DC/DC conversion module 11 and the second DC/DC conversion module 20 to.By the control of the first voltage sample control circuit 122,220V voltage transitions is corresponding magnitude of voltage by the first DC/DC conversion module 11, and scope is: 0-265V.By the control of the second voltage sample control circuit 21,220V voltage transitions is corresponding magnitude of voltage by the second DC/DC conversion module 20, and output voltage is: 110V or 220V.
As one preferred embodiment, described first DC/DC conversion module and described second DC/DC conversion module specifically comprise:
The first filtering circuit be connected with described rectification circuit output end;
The the first bridge-type chopper circuit be connected with described filtering circuit output terminal;
The first booster circuit be connected with described first bridge-type chopper circuit output terminal;
The first high-frequency rectification circuit be connected with described first booster circuit output terminal;
The LC filtering circuit be connected with described first high-frequency rectification circuit output terminal;
The second filtering circuit be connected with described rectification circuit output end;
The the second bridge-type chopper circuit be connected with described filtering circuit output terminal;
The second booster circuit be connected with described second bridge-type chopper circuit output terminal;
The second high-frequency rectification circuit be connected with described second booster circuit output terminal;
The 2nd LC filtering circuit be connected with described second high-frequency rectification circuit output terminal;
Wherein, the input end of described first filtering circuit is as the input end of described first DC/DC conversion module, and the output terminal of a described LC filtering circuit is as the output terminal of described first DC/DC conversion module; The input end of described second filtering circuit is as the input end of described second DC/DC conversion module, and the output terminal of described 2nd LC filtering circuit is as the output terminal of described second DC/DC conversion module.
As shown in Figure 4, the first DC/DC conversion module 11 comprises: the first filtering circuit 40, first bridge-type chopper circuit 41, first booster circuit 42, first high-frequency rectification circuit 43 and LC filtering circuit 44.Wherein, the input end of the first filtering circuit 40 is as the input end of the first DC/DC conversion module 11, and the output terminal of a LC filtering circuit 44 is as the output terminal of the first DC/DC conversion module 11.
Second DC/DC conversion module 20 comprises: the second filtering circuit 45, second bridge-type chopper circuit 46, second booster circuit 47, second high-frequency rectification circuit 48 and the 2nd LC filtering circuit 49.Wherein, the input end of the second filtering circuit 45 is as the input end of the second DC/DC conversion module 20, and the output terminal of the 2nd LC filtering circuit 49 is as the output terminal of the second DC/DC conversion module 20.
As one preferred embodiment, described first voltage sample control circuit specifically comprises:
The first feedback circuit be connected with a described LC filtering circuit output terminal;
The SG3525 control chip be connected with described first feedback circuit output;
The first isolating transformer be connected with a described SG3525 control chip output terminal;
Wherein, the output terminal of described first isolating transformer is connected with the input end of described first bridge-type chopper circuit, and described first feedback circuit is connected with described processor communication;
Described second voltage sample control circuit specifically comprises:
The second feedback circuit be connected with described 2nd LC filtering circuit output terminal;
The 2nd SG3525 control chip be connected with described second feedback circuit output;
The second isolating transformer be connected with described 2nd SG3525 control chip output terminal;
Wherein, the output terminal of described second isolating transformer is connected with the input end of described second bridge-type chopper circuit, and described second feedback circuit is connected with described processor communication.
As shown in Figure 4, the first feedback circuit 50 is connected with a LC filtering circuit output terminal, and the magnitude of voltage that a LC filtering circuit exports feeds back in processor 123 by the first feedback circuit 50.When button 13 is pressed to corresponding position, then processor 123 generates corresponding Control of Voltage order, and this order is sent to the first feedback circuit 50, this order is sent in a SG3525 control chip 51 by the first feedback circuit 50, by controlling the transformation ratio of the first isolating transformer 52, make the voltage of the first bridge-type chopper circuit 41 that corresponding change occur, thus realize a LC filtering circuit 44 and export corresponding magnitude of voltage.
Second voltage sample control circuit 21 comprises: the second feedback circuit 53, the 2nd SG3525 control chip 54 and the second isolating transformer 55.Because the second voltage sample control circuit 21 is identical with principle of work with the structure of the first voltage sample control circuit 122, wouldn't repeat here.
On the basis of above-described embodiment, as one preferred embodiment, described sample circuit specifically comprises:
The current sampling circuit be connected with a described LC filtering circuit output terminal;
The current/voltage converter circuit be connected with described current sampling circuit output terminal;
The first low-pass filter circuit be connected with described current/voltage converter circuit output terminal;
The first amplifying circuit be connected with described first low-pass filter circuit output terminal;
The voltage sampling circuit be connected with a described LC filtering circuit output terminal;
The signal conditioning circuit be connected with described voltage sampling circuit output terminal;
The second low-pass filter circuit be connected with described signal conditioning circuit output terminal;
The second amplifying circuit be connected with described second low-pass filter circuit output terminal;
The A/D conversion chip be all connected with the output terminal of described first amplifying circuit and the output terminal of described second amplifying circuit;
Wherein, the output terminal of described A/D conversion chip is connected with the input end of described processor as the output terminal of described sample circuit.
As shown in Figure 4, current sampling circuit 60 is connected with the output terminal of a LC filtering circuit 44, current/voltage converter circuit 61 is connected with the output terminal of current sampling circuit 60, first low-pass filter circuit 62 is connected with the output terminal of current/voltage converter circuit 61, and the first amplifying circuit 63 is connected with the output terminal of the first low-pass filter circuit 62.Voltage sampling circuit 64 is connected with the output terminal of a LC filtering circuit, signal conditioning circuit 65 is connected with the output terminal of voltage sampling circuit 64, second low-pass filter circuit 66 is connected with the output terminal of signal conditioning circuit 65, and the second amplifying circuit 67 is connected with the output terminal of the second low-pass filter circuit 66.A/D conversion chip 68 is connected with the output terminal of the first amplifying circuit 63 and the output terminal of the second amplifying circuit 67, and sampled result is sent in processor 123.
Embodiment five
On the basis of embodiment two to embodiment four, as one preferred embodiment, isolating switch low-voltage divide-shut brake proving installation, also comprises:
For connecting the connecting line of described isolating switch low-voltage divide-shut brake proving installation and isolating switch to be tested;
Described connecting line is arranged at the output terminal of described first DC/DC conversion module and the output terminal of described second DC/DC conversion module.
In order to complete the test of isolating switch low-voltage divide-shut brake, need isolating switch low-voltage divide-shut brake proving installation to be connected with isolating switch to be tested.In concrete enforcement, all connecting line can be set, to be connected with isolating switch to be tested at the output terminal of the output terminal of the first DC/DC conversion module and the second DC/DC conversion module.
The test of isolating switch low-voltage divide-shut brake conveniently can be carried out by all arranging connecting line at the output terminal of the first DC/DC conversion module and the output terminal of the second DC/DC conversion module.
It should be noted that, the present embodiment does not specify the design parameter of connecting line, as long as the electric signal transmission that the first DC/DC conversion module and the second DC/DC conversion module can be exported is to isolating switch to be tested.
Above isolating switch low-voltage divide-shut brake proving installation provided by the utility model is described in detail.Apply specific case herein to set forth principle of the present utility model and embodiment, the explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (10)
1. an isolating switch low-voltage divide-shut brake proving installation, comprise: ac/dc modular converter and for providing the first DC/DC conversion module of low-voltage action power, the input end of described first DC/DC conversion module is connected with the output terminal of described ac/dc modular converter, it is characterized in that, also comprise: sampling control circuit and for selecting the button of voltage, described sampling control circuit comprises:
For gathering the sample circuit of described first DC/DC conversion module output current and voltage, the input end of described sample circuit is connected with the output terminal of described first DC/DC conversion module;
For sampling and feeding back the first voltage sample control circuit of described first DC/DC conversion module output voltage, described first voltage sample control circuit is connected with described first DC/DC conversion module communication;
For the processor of sampling and control, the input end of described processor is connected with the output terminal of described sample circuit, and described processor and described first voltage sample control circuit communicate to connect;
Described button is connected with the input end of described processor.
2. isolating switch low-voltage divide-shut brake proving installation according to claim 1, is characterized in that, also comprise:
For providing the second DC/DC conversion module of direct supply, the input end of described second DC/DC conversion module is connected with the output terminal of described ac/dc modular converter;
Wherein, described sampling control circuit also comprises: for sampling and feeding back the second voltage sample control circuit of described second DC/DC conversion module output voltage; Described second Control of Voltage sample circuit is connected with described second DC/DC conversion module communication, and described second voltage sample control circuit is connected with described processor communication.
3. isolating switch low-voltage divide-shut brake proving installation according to claim 2, is characterized in that, also comprise: the usb communication module be connected with described processor output terminal and display screen.
4. isolating switch low-voltage divide-shut brake proving installation according to claim 2, it is characterized in that, described ac/dc modular converter is specially: rectification circuit.
5. isolating switch low-voltage divide-shut brake proving installation according to claim 4, is characterized in that, described AC power output AC 220V voltage.
6. isolating switch low-voltage divide-shut brake proving installation according to claim 5, it is characterized in that, the scope of the output voltage of described first DC/DC conversion module is: 0-265V, and the output voltage of described second DC/DC conversion module is: 110V or 220V.
7. isolating switch low-voltage divide-shut brake proving installation according to claim 4, is characterized in that, described first DC/DC conversion module and described second DC/DC conversion module specifically comprise:
The first filtering circuit be connected with described rectification circuit output end;
The the first bridge-type chopper circuit be connected with described filtering circuit output terminal;
The first booster circuit be connected with described first bridge-type chopper circuit output terminal;
The first high-frequency rectification circuit be connected with described first booster circuit output terminal;
The LC filtering circuit be connected with described first high-frequency rectification circuit output terminal;
The second filtering circuit be connected with described rectification circuit output end;
The the second bridge-type chopper circuit be connected with described filtering circuit output terminal;
The second booster circuit be connected with described second bridge-type chopper circuit output terminal;
The second high-frequency rectification circuit be connected with described second booster circuit output terminal;
The 2nd LC filtering circuit be connected with described second high-frequency rectification circuit output terminal;
Wherein, the input end of described first filtering circuit is as the input end of described first DC/DC conversion module, and the output terminal of a described LC filtering circuit is as the output terminal of described first DC/DC conversion module; The input end of described second filtering circuit is as the input end of described second DC/DC conversion module, and the output terminal of described 2nd LC filtering circuit is as the output terminal of described second DC/DC conversion module.
8. isolating switch low-voltage divide-shut brake proving installation according to claim 7, is characterized in that, described first voltage sample control circuit specifically comprises:
The first feedback circuit be connected with a described LC filtering circuit output terminal;
The SG3525 control chip be connected with described first feedback circuit output;
The first isolating transformer be connected with a described SG3525 control chip output terminal;
Wherein, the output terminal of described first isolating transformer is connected with the input end of described first bridge-type chopper circuit, and described first feedback circuit is connected with described processor communication;
Described second voltage sample control circuit specifically comprises:
The second feedback circuit be connected with described 2nd LC filtering circuit output terminal;
The 2nd SG3525 control chip be connected with described second feedback circuit output;
The second isolating transformer be connected with described 2nd SG3525 control chip output terminal;
Wherein, the output terminal of described second isolating transformer is connected with the input end of described second bridge-type chopper circuit, and described second feedback circuit is connected with described processor communication.
9. isolating switch low-voltage divide-shut brake proving installation according to claim 7, it is characterized in that, described sample circuit specifically comprises:
The current sampling circuit be connected with a described LC filtering circuit output terminal;
The current/voltage converter circuit be connected with described current sampling circuit output terminal;
The first low-pass filter circuit be connected with described current/voltage converter circuit output terminal;
The first amplifying circuit be connected with described first low-pass filter circuit output terminal;
The voltage sampling circuit be connected with a described LC filtering circuit output terminal;
The signal conditioning circuit be connected with described voltage sampling circuit output terminal;
The second low-pass filter circuit be connected with described signal conditioning circuit output terminal;
The second amplifying circuit be connected with described second low-pass filter circuit output terminal;
The A/D conversion chip be all connected with the output terminal of described first amplifying circuit and the output terminal of described second amplifying circuit;
Wherein, the output terminal of described A/D conversion chip is connected with the input end of described processor as the output terminal of described sample circuit.
10. the isolating switch low-voltage divide-shut brake proving installation according to claim 2 to 9 any one, is characterized in that, also comprise:
For connecting the connecting line of described isolating switch low-voltage divide-shut brake proving installation and isolating switch to be tested;
Described connecting line is arranged at the output terminal of described first DC/DC conversion module and the output terminal of described second DC/DC conversion module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420858320.6U CN204287430U (en) | 2014-12-30 | 2014-12-30 | A kind of isolating switch low-voltage divide-shut brake proving installation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420858320.6U CN204287430U (en) | 2014-12-30 | 2014-12-30 | A kind of isolating switch low-voltage divide-shut brake proving installation |
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| CN204287430U true CN204287430U (en) | 2015-04-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597275A (en) * | 2017-03-02 | 2017-04-26 | 福建瑞能博尔电力设备有限公司 | High-voltage switch motion characteristic test method and tester |
| CN107450019A (en) * | 2017-10-19 | 2017-12-08 | 国网山东省电力公司潍坊供电公司 | Handcart type breaker low-voltage motion test instrument |
| CN113189481A (en) * | 2021-05-21 | 2021-07-30 | 江苏大学 | Electric power instrument with circuit breaker service life monitoring function and monitoring method |
-
2014
- 2014-12-30 CN CN201420858320.6U patent/CN204287430U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597275A (en) * | 2017-03-02 | 2017-04-26 | 福建瑞能博尔电力设备有限公司 | High-voltage switch motion characteristic test method and tester |
| CN107450019A (en) * | 2017-10-19 | 2017-12-08 | 国网山东省电力公司潍坊供电公司 | Handcart type breaker low-voltage motion test instrument |
| CN107450019B (en) * | 2017-10-19 | 2020-08-28 | 国网山东省电力公司潍坊供电公司 | Handcart type breaker low-voltage action tester |
| CN113189481A (en) * | 2021-05-21 | 2021-07-30 | 江苏大学 | Electric power instrument with circuit breaker service life monitoring function and monitoring method |
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