CN203179368U - Device for demonstrating direct-current resistor failure of current transformer - Google Patents
Device for demonstrating direct-current resistor failure of current transformer Download PDFInfo
- Publication number
- CN203179368U CN203179368U CN 201320206459 CN201320206459U CN203179368U CN 203179368 U CN203179368 U CN 203179368U CN 201320206459 CN201320206459 CN 201320206459 CN 201320206459 U CN201320206459 U CN 201320206459U CN 203179368 U CN203179368 U CN 203179368U
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- Prior art keywords
- resistance
- fault
- current transformer
- protective cover
- direct current
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims abstract description 17
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004088 simulation Methods 0.000 abstract 3
- 238000013024 troubleshooting Methods 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
本实用新型公开了一种用于演示电流互感器直流电阻故障的装置，包括支架、模拟回路电阻、接线端子、指示灯、保护罩；所述模拟回路电阻固定在支架上，所述模拟回路电阻包括若干相互连接的镀锌铁条，所述接线端子与模拟回路电阻连接，所述模拟回路电阻的外侧还设有与支架固定连接的保护罩，所述保护罩和模拟回路电阻之间还设有指示灯。本实用新型的有益效果：形体较小，轻巧便于移动；透明可视，便于演示和观察；指示灯指示明显，便于显示故障位置；模拟回路电阻与实际相当，可以利用直流电阻测试仪对其实际测量；可以根据需要任意设置回路故障点，演示故障查找方法。
The utility model discloses a device for demonstrating the DC resistance fault of a current transformer, which comprises a bracket, a simulation loop resistance, a connection terminal, an indicator light, and a protective cover; the simulation loop resistance is fixed on the bracket, and the simulation loop resistance It consists of a number of interconnected galvanized iron bars, the terminals are connected to the analog loop resistance, and the outside of the analog loop resistance is also provided with a protective cover fixedly connected to the bracket, and there is an indicator between the protective cover and the analog loop resistance lamp. The beneficial effects of the utility model: the body is small, light and easy to move; transparent and visible, easy to demonstrate and observe; the indicator light indicates clearly, easy to display the fault location; the resistance of the simulated circuit is equivalent to the actual one, and the DC resistance tester can be used to check the actual Measurement; loop fault points can be set arbitrarily according to needs, and the method of fault finding can be demonstrated.
Description
Technical field
The utility model relates to a kind of device for demonstration current transformer direct current resistance fault.
Background technology
Current transformer be extremely important in the electric system, use equipment very widely.Because the current transformer primary circuit is made up of no-load voltage ratio web joint contact resistance, primary connection terminal transition resistance, a plurality of parts such as home loop resistance, through operation for a long time, through regular meeting the wherein failure problems of certain link appears.And current transformer belongs to large scale electrical power unit, be difficult to it is moved into the less real training place in classroom or space, and, real current transformer can't be seen the inner structure of its primary circuit, also be difficult to fault is set as required, can't carry out teaching and the real training of demonstration, measurement and the troubleshooting method of primary circuit direct current resistance fault.
The utility model content
The utility model overcomes the above problems just, and a kind of device for demonstration current transformer direct current resistance fault is provided, and its body is less, lightly is convenient to mobile; Transparent visual, be convenient to demonstration and observation; The pilot lamp indication obviously is convenient to show abort situation; Analog loopback resistance can utilize instrument for measuring DC resistance to its actual measurement with quite actual; The loop fault point can also be set arbitrarily as required, and demonstration troubleshooting method satisfies teaching and real training requirement.
To achieve these goals, the utility model adopts following technical scheme.
A kind of device for demonstration current transformer direct current resistance fault comprises support, analog loopback resistance, connection terminal, pilot lamp, protective cover; Described analog loopback resistance is fixed on the support; described analog loopback resistance comprises some interconnective zinc-plated iron bars; described connection terminal is connected with analog loopback resistance; the outside of described analog loopback resistance also is provided with the protective cover of fixedlying connected with support, also is provided with pilot lamp between described protective cover and the analog loopback resistance.
As further improvement of the utility model, described device for demonstration current transformer direct current resistance fault also comprises some control knobs, and control knob is fixed on the support, is used for independent each indicator light switch of control.
Distance between the described zinc-plated iron bar can be adjusted, by adjusting the contact resistance of the connection tightness degree change various piece between zinc-plated iron bar.
Described support is stainless steel stent.
Described pilot lamp is the LED lamp.
Described protective cover is transparent acrylic material.
Multiple current transformer primary circuit direct current resistance fault can be simulated and demonstrate to the utility model, comprise no-load voltage ratio web joint contact resistance fault, primary connection terminal transition resistance fault, a home loop Resistance Fault etc., and can utilize instrument for measuring DC resistance that it is measured and troubleshooting, can be applied to teaching and the real training of demonstration, measurement and troubleshooting method to current transformer direct current resistance fault very easily.
The beneficial effects of the utility model:
1. body is less, lightly is convenient to mobile.
2. transparent visual, be convenient to demonstration and observation.
3. the pilot lamp indication obviously is convenient to show abort situation.
4. analog loopback resistance can utilize instrument for measuring DC resistance to its actual measurement with quite actual.
5. the loop fault point can be set as required arbitrarily, demonstration troubleshooting method.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Wherein, 1, support, 2, analog loopback resistance, 3, connection terminal, 4, pilot lamp, 5, protective cover, 6, control knob.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1, a kind of device for demonstration current transformer direct current resistance fault comprises support 1, analog loopback resistance 2, connection terminal 3, pilot lamp 4, protective cover 5 and control knob 6; Described analog loopback resistance 2 is fixed on the support 1; described analog loopback resistance 2 comprises some interconnective zinc-plated iron bars; described connection terminal 3 is connected with analog loopback resistance 2; the outside of described analog loopback resistance 2 also is provided with the protective cover 5 of fixedlying connected with support 1, also is provided with pilot lamp 4 between described protective cover 5 and the analog loopback resistance 2.
Described support 1 is stainless steel stent, whole device is played support and fixation.
Described analog loopback resistance 2 is interconnected by a plurality of zinc-plated iron bars to be formed, zinc-plated effect is antirust, various piece in the resistance value of iron bar and the actual current mutual inductor primary circuit is suitable, can actual measurement, can change the contact resistance of various piece by the connection tightness degree of adjusting between zinc-plated iron bar, thereby reach the function that the trouble spot is set arbitrarily.
Tester easy-to-connect when described connection terminal 3 is used for measuring.
Described pilot lamp 4 is the LED lamp, is used for showing trouble location, is convenient to demonstration, observes and explanation.
Described protective cover 5 is transparent acrylic material, plays protective device transparent visual effect again.
Described control knob 6 is used for independent each pilot lamp 4 switch of control.
Though above-mentionedly by reference to the accompanying drawings embodiment of the present utility model is described; but be not the restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.
Claims (6)
1. a device that is used for demonstration current transformer direct current resistance fault is characterized in that, comprises support, analog loopback resistance, connection terminal, pilot lamp, protective cover; Described analog loopback resistance is fixed on the support; described analog loopback resistance comprises some interconnective zinc-plated iron bars; described connection terminal is connected with analog loopback resistance; the outside of described analog loopback resistance also is provided with the protective cover of fixedlying connected with support, also is provided with pilot lamp between described protective cover and the analog loopback resistance.
2. as claimed in claim 1 for the device of demonstrating current transformer direct current resistance fault, it is characterized in that, described device for demonstration current transformer direct current resistance fault also comprises some control knobs, and control knob is fixed on the support, is used for independent each indicator light switch of control.
3. the device for demonstration current transformer direct current resistance fault as claimed in claim 1 is characterized in that the distance between the described zinc-plated iron bar can be adjusted.
4. the device for demonstration current transformer direct current resistance fault as claimed in claim 1 is characterized in that described support is stainless steel stent.
5. the device for demonstration current transformer direct current resistance fault as claimed in claim 1 is characterized in that described pilot lamp is the LED lamp.
6. the device for demonstration current transformer direct current resistance fault as claimed in claim 1 is characterized in that described protective cover is transparent acrylic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320206459 CN203179368U (en) | 2013-04-22 | 2013-04-22 | Device for demonstrating direct-current resistor failure of current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320206459 CN203179368U (en) | 2013-04-22 | 2013-04-22 | Device for demonstrating direct-current resistor failure of current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203179368U true CN203179368U (en) | 2013-09-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320206459 Expired - Fee Related CN203179368U (en) | 2013-04-22 | 2013-04-22 | Device for demonstrating direct-current resistor failure of current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203179368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109671321A (en) * | 2019-02-21 | 2019-04-23 | 北京科技大学 | A kind of resistance measurement Experimental Teaching Method and its system |
-
2013
- 2013-04-22 CN CN 201320206459 patent/CN203179368U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109671321A (en) * | 2019-02-21 | 2019-04-23 | 北京科技大学 | A kind of resistance measurement Experimental Teaching Method and its system |
| CN109671321B (en) * | 2019-02-21 | 2021-10-22 | 北京科技大学 | A kind of resistance measurement experiment teaching method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130904 Termination date: 20140422 |