CN208109990U - anti-interference insulation resistance tester - Google Patents
anti-interference insulation resistance tester Download PDFInfo
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- CN208109990U CN208109990U CN201820604133.3U CN201820604133U CN208109990U CN 208109990 U CN208109990 U CN 208109990U CN 201820604133 U CN201820604133 U CN 201820604133U CN 208109990 U CN208109990 U CN 208109990U
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- circuit
- high voltage
- circuit board
- voltage control
- insulation resistance
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Abstract
The utility model discloses a kind of anti-interference Insulation Resistance Testers, including shell, it is arranged in the intracorporal circuit board of shell, the 220V alternating-current charging interface being connected with circuit board is provided on shell, negative high voltage output interface, high pressure equivalent potential screen port, grounding ports and safety ground port, there are the display screen being connected with circuit board and voltage selection key, high voltage isolating transformer is provided on circuit board, low-voltage control circuit and high voltage control measuring circuit, 220V alternating-current charging interface is connected with high voltage isolating transformer, the 0-10KV DC converting circuit for being provided with the numerical control voltage regulator being connected with high voltage control measuring circuit on circuit boards and being connected with numerical control voltage regulator.The structure setting of the utility model is reasonable, be conducive to improve interference free performance, the accurate reliability that ensure that measurement data solves interference free performance difference in traditional technology to will affect the technical deficiency of sampled data accuracy and reliability, and stability in use is good and practical.
Description
Technical field
The utility model belongs to technical field of electric power detection, and in particular to a kind of anti-interference Insulation Resistance Tester.
Background technique
With the high speed development of power transmission and transformation line, 110kv, 220kv, 500kv, 1000kv high-tension line are all made of Tong Taduo
Transmission back line, and different route spacing are more and more closer, or even occur intersecting and pass through.In route delivery receiving acceptance or maintenance, by
It can not have a power failure in working line, working line can generate up to several hectovolts even induction of tens of thousands of volts on interruption maintenance route
Voltage.Under so strong interference, the Insulation test of route can not be carried out, and the Insulation Resistance Tester including import can not be just
Often work, or even be burned out.Its there are the shortcomings that:(route is too for common Insulation Resistance Tester or test inaccuracy now
It is long) or can not resist several kilovolts even induced voltage of tens of thousands of volts.The reason is that due to 110kv-1000kv multiple-loop line road
Overhead transmission line, when a wherein line maintenance, when other routes are run, since coupling, mutual inductance etc. certainly will be in repair lines between route
Road generates several kilovolts even induced voltage of tens of thousands of volts；Common Insulation Resistance Tester due to do not carry out effective high pressure every
Normally it can not measure or burn from test signal isolation, so that it is difficult to ensure the accuracy and reliability of sampled data,
Applicability is restricted.
Summary of the invention
The purpose of the utility model is to provide a kind of anti-interference Insulation Resistance Testers, it is intended to solve to resist in traditional technology dry
Immunity can the poor technical deficiency to will affect sampled data accuracy and reliability.
Realizing the technical solution of the utility model aim is：A kind of anti-interference Insulation Resistance Tester, including shell, setting
In the intracorporal circuit board of the shell, be provided on the housing the 220V alternating-current charging interface being connected with the circuit board,
Negative high voltage output interface, high pressure equivalent potential screen port, grounding ports and the safety ground port being connected with the circuit board,
It is additionally provided with the display screen being connected with the circuit board and voltage selection key on the housing, is arranged on the circuit board
There is high voltage isolating transformer, the low-voltage control circuit and high voltage control measuring circuit being connected with the high voltage isolating transformer,
The 220V alternating-current charging interface is connected with the high voltage isolating transformer, is provided on the circuit board and the high pressure
The measuring circuit numerical control voltage regulator being connected and the 0-10KV DC converting circuit being connected with the numerical control voltage regulator are controlled,
The negative high voltage output interface, high pressure equivalent potential screen port, grounding ports are connected with the 0-10KV DC converting circuit
It connects.
The bleeder circuit being connected with the high voltage control measuring circuit, the negative height are additionally provided on the circuit board
Pressure output interface is connected with the bleeder circuit.
It is additionally provided with switching on and shutting down key, start and stop key and high pressure reset key on the housing, the switching on and shutting down key,
Display screen, start and stop key and high pressure reset key are connected with the low-voltage control circuit.
Light emitting diode is additionally provided on the circuit board, the light emitting diode measures electricity with high voltage control respectively
Road, low-voltage control circuit are connected.
Be additionally provided in the shell the first battery being connected with the high voltage control measuring circuit, with it is described low
The second battery that pressure control circuit is connected.
The utility model has the effect of positive：The structure setting of the utility model is reasonable, can resist line-frequency induction voltage,
Be conducive to improve Insulation test authenticity, high-voltage electricity source capsule, low-voltage control circuit can be effectively isolated, so as to prevent
Only destruction of the induced voltage to equipment, improves operational safety, is conducive to improve interference free performance, ensure that measurement data
Accurate reliability solves interference free performance difference in traditional technology to will affect the technology of sampled data accuracy and reliability
Deficiency, stability in use are good and practical.
Detailed description of the invention
In order to be more likely to be clearly understood the content of the utility model, below according to specific embodiment and combine attached
Figure, is described in further detail the utility model, wherein：
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the circuit structure diagram of the utility model；
Fig. 3 is the physical circuit figure that the utility model mesohigh controls measuring circuit；
Fig. 4 is the physical circuit figure of the utility model mesolow control circuit；
Fig. 5 is the physical circuit figure of numerical control voltage regulator in the utility model.
Specific embodiment
(embodiment 1)
Fig. 1 to Fig. 5 shows a kind of specific embodiment of the utility model, and wherein Fig. 1 is the structure of the utility model
Schematic diagram；Fig. 2 is the circuit structure diagram of the utility model；Fig. 3 is the specific electricity that the utility model mesohigh controls measuring circuit
Lu Tu；Fig. 4 is the physical circuit figure of the utility model mesolow control circuit；Fig. 5 is numerical control voltage regulator in the utility model
Physical circuit figure.
See Fig. 1 to Fig. 5, a kind of anti-interference Insulation Resistance Tester, including shell 1, the circuit in the shell 1 is set
Plate is provided with the 220V alternating-current charging interface 2 being connected with the circuit board on the shell 1, is connected with the circuit board
Negative high voltage output interface 3, high pressure equivalent potential screen port 4, grounding ports 5 and the safety ground port 6 connect, in the shell 1
On be additionally provided with the display screen 7 and voltage selection key 8 being connected with the circuit board, be provided on the circuit board high pressure every
From transformer 9, the low-voltage control circuit 10 being connected with the high voltage isolating transformer 9 and high voltage control measuring circuit 11, institute
It states 220V alternating-current charging interface 2 to be connected with the high voltage isolating transformer 9, be provided on the circuit board and the high pressure
Control the numerical control voltage regulator 12 being connected of measuring circuit 11 and the 0-10KV direct current being connected with the numerical control voltage regulator 12 conversion
Circuit 13, the negative high voltage output interface, high pressure equivalent potential screen port, grounding ports are converted with the 0-10KV direct current
Circuit is connected.
The bleeder circuit 14 being connected with the high voltage control measuring circuit 11 is additionally provided on the circuit board, it is described
Negative high voltage output interface is connected with the bleeder circuit.
Switching on and shutting down key 15, start and stop key 16 and high pressure reset key 17, the switch are additionally provided on the shell 1
Machine key, display screen, start and stop key and high pressure reset key are connected with the low-voltage control circuit.
Light emitting diode 18 is additionally provided on the circuit board, the light emitting diode measures electricity with high voltage control respectively
Road, low-voltage control circuit are connected.Using optical isolation, i.e., light emitting diode carries out data transmission that (non-contact data is passed to penetrating
It is defeated), since light pipe will not generate radiation and electromagnetic pulse, strong antijamming capability, measurement data is accurate.
Be additionally provided in the shell the first battery 19 being connected with the high voltage control measuring circuit, with it is described
The second battery 20 that low-voltage control circuit is connected.
The structure setting of the utility model is reasonable, can resist line-frequency induction voltage, is conducive to improve the true of Insulation test
Property, high-voltage electricity source capsule, low-voltage control circuit can be effectively isolated, so as to prevent destruction of the induced voltage to equipment,
Operational safety is improved, is conducive to improve interference free performance, ensure that the accurate reliability of measurement data, solve traditional skill
For interference free performance difference in art to will affect the technical deficiency of sampled data accuracy and reliability, stability in use is good and practical
Property is strong.
Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.And the obvious changes or variations that these connotations for belonging to the utility model are extended out still fall within it is practical
Novel protection scope.
Claims (5)
1. a kind of anti-interference Insulation Resistance Tester, including shell are arranged in the intracorporal circuit board of the shell, it is characterised in that：
Be provided with the 220V alternating-current charging interface being connected with the circuit board on the housing, be connected with the circuit board it is negative
High voltage output interface, high pressure equivalent potential screen port, grounding ports and safety ground port, be additionally provided on the housing with
The display screen and voltage selection key that the circuit board is connected are provided with high voltage isolating transformer on the circuit board, with institute
State the low-voltage control circuit and high voltage control measuring circuit that high voltage isolating transformer is connected, the 220V alternating-current charging interface with
The high voltage isolating transformer is connected, and the number being connected with the high voltage control measuring circuit is provided on the circuit board
Control depressor and the 0-10KV DC converting circuit being connected with the numerical control voltage regulator, the negative high voltage output interface, high pressure
Equivalent potential screen port, grounding ports are connected with the 0-10KV DC converting circuit.
2. anti-interference Insulation Resistance Tester according to claim 1, it is characterised in that：It is also set up on the circuit board
There is the bleeder circuit being connected with the high voltage control measuring circuit, the negative high voltage output interface is connected with the bleeder circuit
It connects.
3. anti-interference Insulation Resistance Tester according to claim 2, it is characterised in that：It is additionally provided on the housing
Switching on and shutting down key, start and stop key and high pressure reset key, the switching on and shutting down key, display screen, start and stop key and high pressure reset are pressed
Key is connected with the low-voltage control circuit.
4. anti-interference Insulation Resistance Tester according to claim 3, it is characterised in that：It is also set up on the circuit board
There is light emitting diode, the light emitting diode is connected with high voltage control measuring circuit, low-voltage control circuit respectively.
5. anti-interference Insulation Resistance Tester according to claim 4, it is characterised in that：It is additionally provided in the shell
The first battery being connected with the high voltage control measuring circuit, the second electric power storage being connected with the low-voltage control circuit
Pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820604133.3U CN208109990U (en) | 2018-04-25 | 2018-04-25 | anti-interference insulation resistance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820604133.3U CN208109990U (en) | 2018-04-25 | 2018-04-25 | anti-interference insulation resistance tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208109990U true CN208109990U (en) | 2018-11-16 |
Family
ID=64115883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820604133.3U Active CN208109990U (en) | 2018-04-25 | 2018-04-25 | anti-interference insulation resistance tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208109990U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630532A (en) * | 2020-03-24 | 2021-04-09 | 济南高试电力设备有限公司 | Intelligent voice type anti-interference insulation resistance tester |
-
2018
- 2018-04-25 CN CN201820604133.3U patent/CN208109990U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112630532A (en) * | 2020-03-24 | 2021-04-09 | 济南高试电力设备有限公司 | Intelligent voice type anti-interference insulation resistance tester |
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