CN204631172U - Small area analysis open loop test load device - Google Patents
Small area analysis open loop test load device Download PDFInfo
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- CN204631172U CN204631172U CN201520393491.0U CN201520393491U CN204631172U CN 204631172 U CN204631172 U CN 204631172U CN 201520393491 U CN201520393491 U CN 201520393491U CN 204631172 U CN204631172 U CN 204631172U
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- area analysis
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- 238000012360 testing method Methods 0.000 title claims abstract description 57
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 230000001419 dependent effect Effects 0.000 claims abstract description 5
- 230000005284 excitation Effects 0.000 claims description 12
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 238000002474 experimental method Methods 0.000 abstract description 2
- 208000027418 Wounds and injury Diseases 0.000 abstract 1
- 230000006378 damage Effects 0.000 abstract 1
- 208000014674 injury Diseases 0.000 abstract 1
- 230000004224 protection Effects 0.000 description 4
- AEEAZFQPYUMBPY-UHFFFAOYSA-N [I].[W] Chemical compound [I].[W] AEEAZFQPYUMBPY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Abstract
The utility model provides a kind of small area analysis open loop test load device, and described small area analysis open loop test load device comprises: shell and be arranged on the circuit part of described enclosure; Described circuit part comprises: two input ports, connect the two ends of tested voltage apparatus; Pull-up resistor, comprises the first resistance, the second resistance, the 3rd resistance and the 4th resistance of connecting successively, and the head and the tail two ends after series connection are connected with two described input ports respectively; One voltage dependent resistor (VDR), is connected in parallel between described head and the tail two ends; Two measurement port, are connected between described first resistance and the second resistance and between described 3rd resistance and the 4th resistance by wire, and described measurement port connects waveform testing instrument.The utility model can avoid the equipment that may cause because of uncontrollable risk factors in small area analysis open loop process of the test and personal injury, not only increases experiment work efficiency, has evaded various risk factors simultaneously.
Description
Technical field
The utility model relates to the small area analysis open loop experimental technique in excitation unit check process, particularly relates to a kind of small area analysis open loop test load device.
Background technology
Small area analysis open loop test is an important pilot project in excitation unit check process.The small area analysis open loop test of excitation unit is now normally after excitation installation of electrical equipment completes, and draws materials and make simple test load (such as small resistor, iodine-tungsten lamp, heating plate) in scene.The on-the-spot interim test load device made lacks necessary safety prevention measure usually, is also not easy to test measurement and detection simultaneously, therefore makes special load device and seems particularly necessary.
Utility model content
The utility model provides a kind of small area analysis open loop test load device, to increase work efficiency, reduces the risk factors in process of the test simultaneously.
To achieve these goals, the utility model provides a kind of small area analysis open loop test load device, and described small area analysis open loop test load device comprises: shell and be arranged on the circuit part of described enclosure;
Described circuit part comprises:
Two input ports, connect the two ends of tested voltage apparatus;
Pull-up resistor, comprises the first resistance, the second resistance, the 3rd resistance and the 4th resistance of connecting successively, and the head and the tail two ends after series connection are connected with two described input ports respectively;
One voltage dependent resistor (VDR), is connected in parallel between described head and the tail two ends;
Two measurement port, are connected between described first resistance and the second resistance and between described 3rd resistance and the 4th resistance by wire, and described measurement port connects waveform testing instrument.
In one embodiment, described small area analysis open loop test load device comprises: isolating switch, and the two ends of described isolating switch are connected to two described input ports respectively.
In one embodiment, described shell comprises: the insulating circuit board of outer field aluminium alloy and internal layer, and described circuit is arranged on described insulating circuit board.
In one embodiment, described wire is provided with fuse.
In one embodiment, described waveform testing instrument is oscillograph or multimeter.
In one embodiment, described measurement port connects described oscillograph or multimeter by calibrating terminal.
In one embodiment, described tested voltage apparatus comprises excitation unit.
In one embodiment, described input port connects described excitation unit by calibrating terminal.
The beneficial effect of the utility model embodiment is:
Small area analysis open loop test load device of the present utility model achieves integrated modular, easy to carry, and wiring is simple, effectively raises work on the spot efficiency;
The safeguard measure that small area analysis open loop test load device of the present utility model carries can the effective safety of the person of equipment and testing crew in warranty test process;
Small area analysis open loop test load device of the present utility model can, according to the technical parameter requirement of test to load, select the mode of connection to adapt to the requirement that different electric pressure is tested in the open loop of excitation small area analysis flexibly;
Small area analysis open loop test load device of the present utility model can be used for the occasion that other Wave form detector can not directly be measured.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, 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.
Fig. 1 is the structural representation of small area analysis open loop test load device of the present 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 embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model provides a kind of small area analysis open loop test load device, and as shown in Figure 1, this small area analysis open loop test load device comprises: shell 101 and be arranged on the circuit part of described enclosure.
Wherein, this circuit part comprises: two input ports 102, pull-up resistor, voltage dependent resistor (VDR) 103 and two measurement port 104.
Two input ports 102, connect the two ends of tested voltage apparatus, to measure the voltage of tested voltage apparatus.Tested voltage apparatus can be excitation unit, and input port can connect described excitation unit by calibrating terminal, and the utility model is not as limit.
Pull-up resistor comprises: the first resistance 105, second resistance 106, the 3rd resistance 107 and the 4th resistance 108.First resistance 105, second resistance 106, the 3rd resistance 107 and the 4th resistance 108 are sequentially connected in series, and the head and the tail two ends (109 in figure and 110) being connected in series rear formation are connected 102 with described input port respectively.
Voltage dependent resistor (VDR) 103 is connected in parallel between head and the tail two ends, plays overvoltage protection effect.
Two measurement port 104 are connected between the first resistance 105 and the second resistance 106 and between the 3rd resistance 107 and the 4th resistance 108 by wire 111 and wire 112.Measurement port is connected to waveform testing instrument, and as oscillograph or multimeter etc., measurement port 104 can connect described oscillograph or multimeter by calibrating terminal, and the utility model embodiment is not as limit.Waveform testing instrument can measure the undistorted voltage waveform after resistive voltage division measurement.
In one embodiment, shell 101 can comprise: the insulating circuit board (not shown) of outer field aluminium alloy and internal layer, foregoing circuit can be arranged on this insulating circuit board.
As shown in Figure 1, small area analysis open loop test load device of the present utility model also comprises: isolating switch 113, and the two ends of isolating switch 113 are connected to two input ports 102 respectively, isolating switch 113 overcurrent protections.
Small area analysis open loop test load device of the present utility model also comprises: fuse 114 and fuse 115; be separately positioned on wire 111 and wire 112, the oscillograph that fuse 114 and fuse 115 can prevent excess current from connecting with protection port one 04 or multimeter.
This device in the processs of the test such as small area analysis open loop test, have be easy to carry, wiring succinctly convenient, safe reliability advantages of higher.
The major advantage of small area analysis open loop test load device of the present utility model is as follows:
Small area analysis open loop test load device of the present utility model achieves integrated modular, easy to carry, and wiring is simple, effectively raises work on the spot efficiency;
The safeguard measure that small area analysis open loop test load device of the present utility model carries can the effective safety of the person of equipment and testing crew in warranty test process;
Small area analysis open loop test load device of the present utility model can, according to the technical parameter requirement of test to load, select the mode of connection to adapt to the requirement that different electric pressure is tested in the open loop of excitation small area analysis flexibly;
Small area analysis open loop test load device of the present utility model can be used for the occasion that other Wave form detector can not directly be measured.
In a word, small area analysis open loop test load device of the present utility model not only increases work efficiency, decreases the risk factors in process of the test simultaneously.
Apply specific embodiment in the utility model 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; Meanwhile, for one of ordinary skill in the art, according to thought of the present utility model, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.
Claims (8)
1. a small area analysis open loop test load device, is characterized in that, described small area analysis open loop test load device comprises: shell and be arranged on the circuit part of described enclosure;
Described circuit part comprises:
Two input ports, connect the two ends of tested voltage apparatus;
Pull-up resistor, comprises the first resistance, the second resistance, the 3rd resistance and the 4th resistance of connecting successively, and the head and the tail two ends after series connection are connected with two described input ports respectively;
One voltage dependent resistor (VDR), is connected in parallel between described head and the tail two ends;
Two measurement port, are connected between described first resistance and the second resistance and between described 3rd resistance and the 4th resistance by wire, and described measurement port connects waveform testing instrument.
2. small area analysis open loop test load device according to claim 1, it is characterized in that, described shell comprises: the insulating circuit board of outer field aluminium alloy and internal layer, and described circuit part is arranged on described insulating circuit board.
3. small area analysis open loop test load device according to claim 1, is characterized in that, described small area analysis open loop test load device also comprises: isolating switch, and the two ends of described isolating switch are connected to two described input ports respectively.
4. small area analysis open loop test load device according to claim 1, is characterized in that, described wire is provided with fuse.
5. small area analysis open loop test load device according to claim 1, it is characterized in that, described waveform testing instrument is oscillograph or multimeter.
6. small area analysis open loop test load device according to claim 5, it is characterized in that, described measurement port connects described oscillograph or multimeter by calibrating terminal.
7. small area analysis open loop test load device according to claim 1, it is characterized in that, described tested voltage apparatus comprises excitation unit.
8. small area analysis open loop test load device according to claim 7, it is characterized in that, described input port connects described excitation unit by calibrating terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520393491.0U CN204631172U (en) | 2015-06-09 | 2015-06-09 | Small area analysis open loop test load device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520393491.0U CN204631172U (en) | 2015-06-09 | 2015-06-09 | Small area analysis open loop test load device |
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| Publication Number | Publication Date |
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| CN204631172U true CN204631172U (en) | 2015-09-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520393491.0U Active CN204631172U (en) | 2015-06-09 | 2015-06-09 | Small area analysis open loop test load device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924792A (en) * | 2021-02-01 | 2021-06-08 | 中国葛洲坝集团机电建设有限公司 | Small load analysis device and method |
-
2015
- 2015-06-09 CN CN201520393491.0U patent/CN204631172U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924792A (en) * | 2021-02-01 | 2021-06-08 | 中国葛洲坝集团机电建设有限公司 | Small load analysis device and method |
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