CN209327437U - A kind of AC current detector - Google Patents
A kind of AC current detector Download PDFInfo
- Publication number
- CN209327437U CN209327437U CN201822065020.3U CN201822065020U CN209327437U CN 209327437 U CN209327437 U CN 209327437U CN 201822065020 U CN201822065020 U CN 201822065020U CN 209327437 U CN209327437 U CN 209327437U
- Authority
- CN
- China
- Prior art keywords
- electrical verification
- self
- detection chip
- test
- detection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of AC current detectors, including insulating bar and the electrical verification indicator being arranged on insulating bar, electrical verification indicator includes the detection circuit of shell and setting inside housings, detection circuit is also connected with contact pilotage, contact pilotage is arranged in case top, detection circuit includes detection chip, and the output of detection chip is connected with self-test signal indicating circuit and electrical verification signal indicating circuit, and the input terminal of detection chip is in series with contact pilotage and self-test switch.The AC current detector of the utility model has the function of electrical verification and self-test two, and safety and stability, electrical verification is accurate, acousto-optic long transmission distance, and detection accuracy is high, superpower anti-interference, and starting voltage dispersion is small, superpower insulation, and mechanical strength is good.
Description
Technical field
The utility model relates to electroscope technical field, in particular to a kind of AC current detector.
Background technique
High-voltage AC electroscope is widely used in power industry, it can judge stand interior metallic conductor, overhead transmission line, connector
Etc. equipment whether charge, be operations staff's main tool used in work of transformer substation.In general, being stopped in operations staff
Before electric equipment turns inspecting state, equipment first is identified without electricity using electroscope, then hanging earthing conductor or closes earthing switch blade, to guarantee to set
Standby and personal safety.When contact high voltage electroscope, if being tested equipment without electricity, without any signal, if there is electricity, announcement is issued
It is alert.In order to exclude to lead to the case where having tested electric equipment still no alarm because of electroscope failure itself, such electroscope is being used
Before, it will use the testing button of itself, guarantee that electroscope circuit is working properly, do not include metal when by testing button still
Probe, if metal probe and connector can not check the problems such as there is fracture.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of AC current detectors, are tested with solving exchange in the prior art
Electric appliance self-test and the incomplete problem of electroscope function.
In order to solve the above-mentioned technical problem, the technical solution of the utility model are as follows:
A kind of AC current detector, including insulating bar and the electrical verification indicator being arranged on the insulating bar, institute
Stating electrical verification indicator includes shell and the detection circuit that the enclosure interior is arranged in, the detection circuit be also connected with contact pilotage and
Power supply, the contact pilotage are arranged in the case top,
The detection circuit includes detection chip, and the output of the detection chip is connected with self-test signal indicating circuit and tests
The input terminal of electric signal indicating circuit, the detection chip is in series with contact pilotage and self-test switch.
Optional: the electrical verification indicating circuit includes electrical verification indicator light and opens with the concatenated electrical verification of electrical verification indicator light
It closes.
Optional: the self-test signal indicating circuit includes sound and light alarm module.
It is optional: to be parallel with self-test indicator light L1 and buzzer between the first output pin and power supply of the detection chip
The first divider resistance R1, the detection chip are also in series between H, self-test indicator light L1 and the first output pin of detection chip
The second output pin and power supply between be sequentially connected in series electrical verification switch K1, electrical verification indicator light L2 and the second divider resistance R2, institute
It states and has been sequentially connected in series contact pilotage A and self-test switch K2 between the input pin of detection chip and ground terminal.
It is optional: third divider resistance R3 and partial pressure electricity are parallel between the input pin and ground terminal of the detection chip
Hold C.
Optional: the insulating bar includes epoxy resin and/or glass fibre.
It by adopting the above technical scheme, can be complete due to being respectively arranged with self-test indicating circuit and electrical verification indicating circuit
Detect that the high pressure of electroscope exists, high pressure is not present and three kinds of states of electroscope failure, and electrical verification is accurate, reaction speed
Fastly, acousto-optic long transmission distance, detection accuracy is high, superpower anti-interference, and starting voltage dispersion is small；Insulating bar uses high-quality
Epoxy resin and high quality glass fiber, safety and stability, good insulating, high mechanical strength.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model AC current detector；
Fig. 2 is the circuit diagram of the utility model AC current detector.
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing.It should be noted that
The explanation of these embodiments is used to help to understand the utility model, but does not constitute the restriction to the utility model.This
Outside, technical characteristic involved in the various embodiments of the present invention described below is as long as they do not conflict with each other
It can be combined with each other.
A kind of AC current detector, as shown in Figure 1, including that insulating bar 1 and the electrical verification being arranged on insulating bar 1 refer to
Show device, be provided with contact pilotage at the top of electrical verification indicator, which contacts with high-tension line with electrical verification.
Electrical verification indicator includes shell and setting detection circuit 2 inside housings, detection circuit 2 be connected with power supply and with
The contact pilotage at top connects, and above-mentioned power supply is 5V power supply.
In the embodiments of the present invention, insulating bar 1 can be epoxy resin and/or glass fibre, safety
Stablize, good insulating, high mechanical strength.
Specifically, detection circuit 2 in the embodiments of the present invention, detects core as shown in Fig. 2, including detection chip
Piece is IC chip, is in series with sound and light alarm module between the first output pin and power supply of IC chip, the sound and light alarm module packet
Self-test indicator light L1 and buzzer H in parallel are included, is also connected between self-test indicator light L1 and the first output pin of detection chip
Having the first divider resistance R1, the first divider resistance R1 is 1K Ω；It is successively gone here and there between the second output pin and power supply of detection chip
Being associated with electrical verification switch K1, electrical verification indicator light L2 and the second divider resistance R2, the second divider resistance R2 is 1K Ω；Detection chip it is defeated
Enter to be sequentially connected in series contact pilotage A and self-test switch K2 between pin and ground terminal, self-test switch K2 is normal open switch；Detection chip
Third divider resistance R3 and derided capacitors C are parallel between input terminal and ground terminal.
What the AC current detector of the utility model specifically used in this way:
Self-test: opening electrical verification switch K1, and electrical verification indicator light L2 is lighted；Self-test switch K2 is pressed, sound and light alarm module issues
Sound-light alarm, i.e. self-test indicator light L1 light and buzzer H makes a sound；Self-test switch K2 is unclamped, electrical verification indicator light L2 is lighted,
Proving this electrical verification indicator at this time is that normally can be used, if pressing, self-test switch K2 is noiseless unglazed or acousto-optic dies down, explanation
There are failures for this electroscope, cannot use.
Electrical verification: being tested position for stylus contact and carry out electrical verification, opens electrical verification switch K1 and says if electrical verification indicator light L2 is lighted
Bright that high pressure is not present, if sound and light alarm module alert, i.e. self-test indicator light L1 is lighted, and buzzer H makes a sound, and is said
Bright there are high pressures, when without any reaction, indicate this device fails or need replacing battery.
The embodiments of the present invention is explained in detail in conjunction with attached drawing above, but the utility model is not limited to be retouched
The embodiment stated.For a person skilled in the art, right in the case where not departing from the utility model principle and spirit
These embodiments carry out a variety of change, modification, replacement and modification, still fall in the protection scope of the utility model.
Claims (6)
1. a kind of AC current detector, special including insulating bar and the electrical verification indicator being arranged on the insulating bar
Sign is: the electrical verification indicator includes shell and the detection circuit that the enclosure interior is arranged in, and the detection circuit also connects
It is connected to contact pilotage and power supply, and the contact pilotage is arranged in the case top,
The detection circuit includes detection chip, and the output of the detection chip is connected with self-test signal indicating circuit and electrical verification letter
Number indicating circuit, the input terminal of the detection chip are in series with contact pilotage and self-test switch.
2. electroscope according to claim 1, it is characterised in that: the electrical verification signal indicating circuit includes electrical verification indicator light
It is switched with the concatenated electrical verification of the electrical verification indicator light.
3. electroscope according to claim 2, it is characterised in that: the self-test signal indicating circuit includes sound-light alarm mould
Block.
4. electroscope according to claim 3, it is characterised in that: the first output pin of the detection chip and power supply it
Between be parallel with self-test indicator light L1 and buzzer H, also connect between self-test indicator light L1 and the first output pin of detection chip
There is the first divider resistance R1, electrical verification switch K1 has been sequentially connected in series between the second output pin and power supply of the detection chip, has been tested
Electric indicator light L2 and the second divider resistance R2, has been sequentially connected in series contact pilotage A between the input pin and ground terminal of the detection chip
With self-test switch K2.
5. electroscope according to claim 4, it is characterised in that: between the input pin and ground terminal of the detection chip
It is parallel with third divider resistance R3 and derided capacitors C.
6. electroscope according to claim 5, it is characterised in that: the insulating bar includes epoxy resin and/or glass
Glass fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822065020.3U CN209327437U (en) | 2018-12-10 | 2018-12-10 | A kind of AC current detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822065020.3U CN209327437U (en) | 2018-12-10 | 2018-12-10 | A kind of AC current detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209327437U true CN209327437U (en) | 2019-08-30 |
Family
ID=67725986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822065020.3U Expired - Fee Related CN209327437U (en) | 2018-12-10 | 2018-12-10 | A kind of AC current detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209327437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110609168A (en) * | 2019-10-15 | 2019-12-24 | 云南电网有限责任公司昆明供电局 | Two-section electroscope |
-
2018
- 2018-12-10 CN CN201822065020.3U patent/CN209327437U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110609168A (en) * | 2019-10-15 | 2019-12-24 | 云南电网有限责任公司昆明供电局 | Two-section electroscope |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201955421U (en) | Wiring detector for multifunctional electric energy metering device | |
| CN106841810A (en) | Insulator detector | |
| CN203535165U (en) | Portable current transformer polarity tester | |
| CN209327437U (en) | A kind of AC current detector | |
| CN106569108A (en) | Switch withstand voltage detection system and detection method | |
| CN105137258A (en) | Intelligent early-warning control device for high-voltage test grounding | |
| CN202815146U (en) | Polarity detector for mutual inductor | |
| CN108549045A (en) | A kind of USB data line detecting system and device | |
| CN105182107A (en) | Detection device, system and method | |
| CN104198879A (en) | Polarity tester | |
| CN204807649U (en) | Tester | |
| CN105182173B (en) | Novel composite mutual inductor polarity tester | |
| CN204832412U (en) | Novel combined instrument transformer polarity test appearance | |
| CN103018702A (en) | Fast checking method of high-voltage cabinet current transformer secondary loop line | |
| CN205450243U (en) | Fault indicator coil tester | |
| CN205539321U (en) | 485 line error detection ware | |
| CN207516486U (en) | A kind of device for reducing the secondary cable core verification time | |
| CN204177906U (en) | Polarity tester | |
| CN111257645A (en) | Device and method for testing direct current resistance of auxiliary contact of high-voltage and low-voltage circuit breakers | |
| CN103743942A (en) | Detection method for initiating explosive device leakage current of power distribution module with solid relay | |
| CN204405779U (en) | The multi-functional circuit detecting instrument of APS Instrument assembly | |
| CN208888281U (en) | Auxiliary connection device | |
| CN203191536U (en) | Voltage monitor comparison apparatus | |
| CN109738757A (en) | Acquisition terminal is used in a kind of identification of separate type low voltage failure cable | |
| CN105842613A (en) | Bluetooth circuit testing jig |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190830 Termination date: 20211210 |