CN211453782U - Wireless capacitance and inductance tester with extension rod - Google Patents
Wireless capacitance and inductance tester with extension rod Download PDFInfo
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- CN211453782U CN211453782U CN201922265342.7U CN201922265342U CN211453782U CN 211453782 U CN211453782 U CN 211453782U CN 201922265342 U CN201922265342 U CN 201922265342U CN 211453782 U CN211453782 U CN 211453782U
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- inductance tester
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Abstract
The utility model discloses a wireless capacitance and inductance tester with an extension rod, which consists of a capacitance and inductance tester and a test clamp device; the capacitance and inductance tester can automatically switch three-phase output lines to provide a power supply for testing; the testing clamp device can detect voltage and current of a power line output by the capacitance and inductance tester, and realize simultaneous application of three-phase test power supplies and wireless transmission of current. Therefore, the capacitance and inductance test does not need to ascend and replace a test power line. Greatly reducing the operation risk and improving the test efficiency. The wireless capacitance inductance tester with the extension rod is particularly suitable for large-scale transformer substations and capacitor banks, and when capacitor inductance testing work of several capacitor banks is carried out simultaneously, the wireless capacitance inductance tester with the extension rod can guarantee operation safety, is beneficial to field operation management and control, greatly improves working efficiency, guarantees safe and timely operation of the capacitor banks, and guarantees stable operation of a power grid.
Description
Technical Field
The utility model belongs to the technical field of the circuit detects and specifically relates to a take wireless capacitance inductance test appearance of extension rod is related to.
Background
The southern power grid enterprise standard Q/CSG1206007-2017 electric power equipment overhaul test regulation requires that capacitance and inductance tests are carried out on a frame-type parallel capacitor bank capacitor and a reactor in a transformer substation, and the pre-test period is once in 6 years or when necessary.
The current test method is as follows: the conventional single capacitor and inductor tester is used for testing, and the conventional capacitor and inductor tester is provided with a pressurizing loop formed by an external voltage line and an external current clamp for carrying out current testing. The current clamp is connected to one end of each single capacitor and one end of each reactor, and the currents of the single capacitors and the single reactors are measured to calculate the capacitance and the inductance.
The existing test scheme has the following defects:
(1) the test risk is high: some capacitor bank frames are higher, are vertical direction and arrange like the three-phase capacitor, need the climbing at conversion current pincers in-process, relate to the eminence operation, have the risk of falling of tester eminence.
(2) The test efficiency is low: when some capacitor banks are stacked relatively high and have narrow spaces, current test lines are long, three-phase test is carried out, the voltage needs to be changed for three times, the number of times of changing the current lines is the number of capacitors, and the test time is long. The test wire twines easily, and the adjustment is difficult, and external current clamp table needs to change the test to every electric capacity unit, and test speed is slow, causes the test efficiency low.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing the technical scheme that can solve above-mentioned problem.
A wireless capacitance and inductance tester with an extension rod comprises a capacitance and inductance tester and a test clamp device; the capacitance and inductance tester can automatically switch three-phase output lines to provide a power supply for testing;
and the test clamp device can realize the detection of voltage and current of a power supply circuit output by the capacitance and inductance tester.
As a further aspect of the present invention: the test jaw apparatus includes: the top of the insulating rod is provided with a coupling which is vertically arranged with the insulating rod, a test clamp fixing frame is arranged on the coupling, the test clamp is fixed on the coupling by the test clamp fixing frame, a clamp opening of the test clamp consists of a test clamp rotating arm and a test clamp fixing arm, and the test clamp rotating arm and the test clamp fixing arm are hinged and matched to form a shifting clamp structure, so that a test loop can be conveniently inserted and detached;
the middle part of the insulating rod is provided with a handle, a pull rope is arranged on the handle, the pull rope penetrates into the test clamp along the insulating rod and the rotating arm of the test clamp, and the pull rope is pulled by the handle so as to pull the rotating arm of the test clamp to open and close through the pull rope;
the wireless module is further arranged in the test clamp, and the collected current value can be transmitted back to the capacitance and inductance tester.
As a further aspect of the present invention: and the test clamp is also provided with a test clamp indicating lamp.
As a further aspect of the present invention: the capacitance inductance tester comprises: the casing is provided with display screen, antenna, ground terminal, switch, AC220V power input port, button, four voltage output terminal, four current output terminal on the casing, wherein inserts on the voltage output terminal and is provided with the voltage test line, inserts on the current output terminal and is provided with the current test line.
As a further aspect of the present invention: the voltage output terminal is a three-phase voltage output terminal.
As a further aspect of the present invention: the current output terminal is a three-phase current output terminal.
Compared with the prior art, the beneficial effects of the utility model are that: the simultaneous application of three-phase test power supplies and the wireless transmission of current are realized. Therefore, the capacitance and inductance test does not need to ascend and replace a test power line. Greatly reducing the operation risk and improving the test efficiency. The wireless capacitance inductance tester with the extension rod is particularly suitable for large-scale transformer substations and capacitor banks, and when capacitor inductance testing work of several capacitor banks is carried out simultaneously, the wireless capacitance inductance tester with the extension rod can guarantee operation safety, is beneficial to field operation management and control, greatly improves working efficiency, guarantees safe and timely operation of the capacitor banks, and guarantees stable operation of a power grid.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of the middle test clamp device of the present invention.
Fig. 2 is a schematic view of another structure of the testing clamp device of the present invention.
Fig. 3 is a schematic structural diagram of the middle test clamp of the present invention.
Fig. 4 is a schematic structural diagram of the middle capacitance and inductance tester of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, in an embodiment of the present invention, a wireless capacitance and inductance tester with an extension rod is composed of a capacitance and inductance tester 12 and a testing clamp device 9; the capacitance and inductance tester 12 can automatically switch three-phase output lines to provide power for testing;
and the test clamp device 9 can detect the voltage and the current of the power line output by the capacitance and inductance tester 12.
The test jaw arrangement 9 comprises: the test clamp comprises an insulating rod 7, a coupling 4 and test clamps 1, wherein the coupling 4 is arranged at the top of the insulating rod 7 and is perpendicular to the insulating rod, a test clamp fixing frame 3 is arranged on the coupling 4, the test clamps 1 are fixed on the coupling 4 by the test clamp fixing frame 3, a jaw of each test clamp 1 consists of a test clamp rotating arm 2 and a test clamp fixing arm 5, and the test clamp rotating arm 2 and the test clamp fixing arm 5 are hinged and matched to form a shifting clamp structure, so that a test loop can be conveniently inserted and removed;
a handle 8 is arranged in the middle of the insulating rod 7, a pull rope is arranged on the handle 8, the pull rope penetrates into the test clamp 1 and the test clamp rotating arm 2 along the insulating rod 7, and the pull rope is pulled through the handle 8 so as to pull the test clamp rotating arm 2 through the pull rope to perform opening and closing actions;
the inside of the test clamp 1 is also provided with a wireless module which can transmit the acquired current value back to the capacitance and inductance tester 12.
The test clamp 1 is also provided with a test clamp indicator light 11.
The capacitance-inductance tester 12 includes: the display device comprises a shell, wherein a display screen 15, an antenna 13, a grounding terminal 14, a switch 16, an AC220V power input port 17, a key 18, four voltage output terminals 19 and four current output terminals 20 are arranged on the shell, a voltage test line 21 is connected to the voltage output terminal 19, and a current test line 22 is connected to the current output terminal 20.
The voltage output terminal 19 is a three-phase voltage output terminal 19.
The current output terminal 20 is a three-phase current output terminal 20.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (6)
1. A wireless capacitance and inductance tester with an extension rod is characterized by consisting of a capacitance and inductance tester and a test clamp device; the capacitance and inductance tester can automatically switch three-phase output lines to provide a power supply for testing;
and the test clamp device can realize the detection of voltage and current of a power supply circuit output by the capacitance and inductance tester.
2. The wireless capacitance-inductance tester with the extension rod of claim 1, wherein the testing clamp device comprises: the top of the insulating rod is provided with a coupling which is vertically arranged with the insulating rod, a test clamp fixing frame is arranged on the coupling, the test clamp is fixed on the coupling by the test clamp fixing frame, a clamp opening of the test clamp consists of a test clamp rotating arm and a test clamp fixing arm, and the test clamp rotating arm and the test clamp fixing arm are hinged and matched to form a shifting clamp structure, so that a test loop can be conveniently inserted and detached;
the middle part of the insulating rod is provided with a handle, a pull rope is arranged on the handle, the pull rope penetrates into the test clamp along the insulating rod and the rotating arm of the test clamp, and the pull rope is pulled by the handle so as to pull the rotating arm of the test clamp to open and close through the pull rope;
the wireless module is further arranged in the test clamp, and the collected current value can be transmitted back to the capacitance and inductance tester.
3. The wireless capacitance-inductance tester with the extension rod according to claim 2, wherein the testing clamp is further provided with a testing clamp indicator light.
4. The wireless capacitance-inductance tester with the extension rod according to claim 1, wherein the capacitance-inductance tester comprises: the casing is provided with display screen, antenna, ground terminal, switch, AC220V power input port, button, four voltage output terminal, four current output terminal on the casing, wherein inserts on the voltage output terminal and is provided with the voltage test line, inserts on the current output terminal and is provided with the current test line.
5. The wireless capacitance-inductance tester with the extension rod of claim 4, wherein the voltage output terminal is a three-phase voltage output terminal.
6. The wireless capacitance and inductance tester with the extension rod as claimed in claim 4, wherein the current output terminal is a three-phase current output terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922265342.7U CN211453782U (en) | 2019-12-17 | 2019-12-17 | Wireless capacitance and inductance tester with extension rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922265342.7U CN211453782U (en) | 2019-12-17 | 2019-12-17 | Wireless capacitance and inductance tester with extension rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211453782U true CN211453782U (en) | 2020-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922265342.7U Expired - Fee Related CN211453782U (en) | 2019-12-17 | 2019-12-17 | Wireless capacitance and inductance tester with extension rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211453782U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116183982A (en) * | 2023-04-26 | 2023-05-30 | 广东电网有限责任公司佛山供电局 | Clamp-on ammeter |
-
2019
- 2019-12-17 CN CN201922265342.7U patent/CN211453782U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116183982A (en) * | 2023-04-26 | 2023-05-30 | 广东电网有限责任公司佛山供电局 | Clamp-on ammeter |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200908 Termination date: 20211217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |