CN204649847U - Capacitance tester - Google Patents
Capacitance tester Download PDFInfo
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- CN204649847U CN204649847U CN201520392527.3U CN201520392527U CN204649847U CN 204649847 U CN204649847 U CN 204649847U CN 201520392527 U CN201520392527 U CN 201520392527U CN 204649847 U CN204649847 U CN 204649847U
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Abstract
A kind of capacitance tester, relate to power equipment technical field of measurement and test, comprise housing, capacitance measurement circuit is provided with in described housing, described housing is provided with the voltage positive output socket be electrically connected with described capacitance measurement circuit respectively, voltage negative accessory power outlet and electric current input socket, also comprise the voltage positive output clamp be electrically connected with described voltage positive output socket by voltage positive output plug, the voltage negative be electrically connected with described voltage negative accessory power outlet by voltage negative output plug exports clamp, and the current measurement clamp to be electrically connected with described electric current input socket by electric current input plug, described voltage positive output socket and described voltage positive output plug are the quadrature arrangement cooperatively interacted, described voltage negative accessory power outlet and described voltage negative output plug are the three-core structure cooperatively interacted, described electric current input socket and described electric current input plug are the two-chip structure cooperatively interacted.The utility model capacitance tester there will not be the situation of wrong plug line, measures efficiency high.
Description
Technical field
The utility model relates to power equipment technical field of measurement and test, particularly a kind of capacitance tester.
Background technology
Capacitor is a kind of very important power equipment, and along with the development of technology, electric capacity obtains at power domain and applies more and more widely, has also become test event conventional in a this area to the test of the electric capacity of capacitor.Market also there is multiple capacitance tester thereupon, most of capacitance tester comprise connect successively power transformer, switch, standard end circuit in parallel and tested terminal circuit, A/D converter (analog quantity/digital quantity converter) and central processing unit, the capacitance tester of this kind of structure needs the connecting line removing measured capacitance and circuit when measuring electric capacity, this metering system not only workload is large, and easily damages measured capacitance device.At present, market also there is a kind of capacitance tester that dismounting electric capacity and circuit connection can not be needed to get final product Measurement accuracy electric capacity, this capacitance tester have employed standard capacitance and measured capacitance is connected into both arms bridge circuit, when measuring electric capacity, add identical test voltage to standard capacitance and measured capacitance simultaneously, then central processing unit adopts to obtain the electric current of standard capacitance and measured capacitance respectively by current sensor and current measurement binding clip, according to test voltage value, the capacitance of measured capacitance can be obtained after data processing.This capacitance tester solves above-mentioned technical matters, but the positive and negative output terminal of the voltage of this capacitance tester is all identical with plug construction with the socket of current measuring input, the corresponding relation carefully recognizing each socket and plug is needed when measuring, very easily wrong plug, measured value not only can be caused after wrong plug inaccurate, sometimes even can cause the damage of equipment.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of capacitance tester, and this capacitance tester there will not be the situation of wrong plug line, and measurement is accurate, measurement efficiency is high, damages probability low, long service life.
For solving the problems of the technologies described above, the technical solution of the utility model is:
A kind of capacitance tester, comprise housing, capacitance measurement circuit is provided with in described housing, described housing is provided with the voltage positive output socket be electrically connected with described capacitance measurement circuit respectively, voltage negative accessory power outlet and electric current input socket, also comprise the voltage positive output clamp be electrically connected with described voltage positive output socket by voltage positive output plug, the voltage negative be electrically connected with described voltage negative accessory power outlet by voltage negative output plug exports clamp, and the current measurement clamp to be electrically connected with described electric current input socket by electric current input plug, described voltage positive output socket and described voltage positive output plug are the quadrature arrangement cooperatively interacted, described voltage negative accessory power outlet and described voltage negative output plug are the three-core structure cooperatively interacted, described electric current input socket and described electric current input plug are the two-chip structure cooperatively interacted.
Wherein, each described socket includes fixing base on the housing, and described base is provided with connecting cylinder, is provided with electric connection terminal in described connecting cylinder; Each described plug comprises the joint pin matched with described connecting cylinder, and the end of described joint pin is provided with the electrical connection hole of inserting for described electric connection terminal, and be provided with shell outside described joint pin, described joint pin is inserted in described connecting cylinder.
Wherein, the outside surface of described connecting cylinder is provided with external thread, and the inside surface of described shell is provided with the internal thread matched with described external thread.
Wherein, each described socket is all covered with tin hat, the end winding support of described tin hat is between described base and described housing.
After have employed technique scheme, the beneficial effects of the utility model are:
Because the voltage positive output socket of the utility model capacitance tester and voltage positive output plug are the quadrature arrangement cooperatively interacted, voltage negative accessory power outlet and voltage negative output plug are the three-core structure cooperatively interacted, and electric current input socket and electric current input plug are the two-chip structure cooperatively interacted.Three groups of sockets are different with the structure of plug, the plug of quadrature arrangement can only be inserted on the socket of quadrature arrangement, the plug of three-core structure can only be inserted on the socket of three-core structure, the plug of two-chip structure can only be inserted on the socket of two-chip structure, thus the situation effectively avoiding wrong plug line occurs, thus improve the accuracy of measurement, and effectively reduce the damage probability of equipment, extend the serviceable life of equipment; And survey crew is do not need carefully to recognize whether socket and plug mates that can ensure can not wrong plug, improves measurement efficiency in measurement.
Because connecting cylinder is provided with external thread, shell is provided with the internal thread matched with external thread, when plug is inserted on socket, plug can be fixed on socket by internal and external threads, thus effectively prevent to cause because pullling wire in the process measured plug and female contact bad, or the situation that plug comes off from socket occurs, and further ensure that the accuracy of measurement, improves measurement efficiency.
Due to socket being covered with tin hat; tin hat can play the effect of dustproof and waterproof when capacitance tester does not use; metal terminal can be prevented to be chronically exposed in air be oxidized, thus ensure that the contact reliability of plug and socket, further improve the accuracy of measurement.
In sum, capacitance tester described in the utility model solves the technical matterss such as the easy wrong plug line of capacitance tester in prior art, and the utility model capacitance tester there will not be the situation of wrong plug line, and measures accurately, measures efficiency high, long service life.
Accompanying drawing explanation
Fig. 1 is the using state schematic diagram of the utility model capacitance tester;
Fig. 2 is the structural representation of the socket of the utility model capacitance tester;
Fig. 3 is the structural representation of the plug of the utility model capacitance tester;
In figure: 10, capacitance tester, 11, tin hat, 120, voltage positive output socket, 1200, base, 1202, electric connection terminal, 1204, external thread, 1206, connecting cylinder, 122, voltage positive output plug, 1220, shell, 1222, joint pin, 1224, electrical connection hole, 1226, internal thread, 124, voltage positive output clamp, 13, display, 140, voltage negative accessory power outlet, 142, voltage negative output plug, 144, voltage negative exports clamp, 15, printer, 160, electric current input socket, 162, electric current input plug, 164, current measurement clamp, 17, communication interface, 18, housing, 30, measured capacitance, 32, sleeve pipe, 40, connection bus.
Embodiment
Below in conjunction with drawings and Examples, set forth the utility model further.
As shown in Figure 1, Figure 2 with Fig. 3 jointly shown in, a kind of capacitance tester, comprises housing 18, is provided with capacitance measurement circuit in housing 18.The top in housing 18 front is provided with the voltage positive output socket 120, voltage negative accessory power outlet 140 and the electric current input socket 160 that are electrically connected with capacitance measurement circuit respectively; Also comprise the voltage positive output clamp 124 be electrically connected with voltage positive output socket 120 by voltage positive output plug 122, current measurement clamp 164 that the voltage negative be electrically connected with voltage negative accessory power outlet 140 by voltage negative output plug 142 is exported clamp 144 and is electrically connected with electric current input socket 160 by electric current input plug 162.Voltage positive output socket 120 and the quadrature arrangement of voltage positive output plug 122 for cooperatively interacting, namely voltage positive output socket 120 is provided with the electric connection terminal 1202 of four metals, and voltage positive output plug 122 is provided with four electrical connection holes 1224 cooperatively interacted with electric connection terminal 1202.Voltage negative accessory power outlet 140 and the three-core structure of voltage negative output plug 142 for cooperatively interacting, namely voltage negative accessory power outlet 140 is provided with three electric connection terminals, and voltage negative output plug 142 is provided with three electrical connection holes cooperatively interacted with electric connection terminal.Electric current input socket 160 and the two-chip structure of electric current input plug 162 for cooperatively interacting, namely electric current input socket 160 is provided with two electric connection terminals, and electric current input plug 162 is provided with two electrical connection holes cooperatively interacted with electric connection terminal.
As Fig. 2 and Fig. 3 jointly shown in, voltage positive output socket 120 comprises base 1200, and base 1200 is fixed on housing 18, and base 1200 is provided with a connecting cylinder 1206, the inside of connecting cylinder 1206 is interval with four electric connection terminals 1202, and the outside surface of connecting cylinder 1206 is provided with external thread 1204.Voltage positive output plug 122 comprises one can be inserted into joint pin 1222 in connecting cylinder 1206, joint pin 1222 is provided with four and can inserts and the electrical connection hole 1224 be electrically connected for four electric connection terminals 1202, the outside of joint pin 1222 is arranged with shell 1220, be provided with the gap that can hold connecting cylinder 1206 between joint pin 1222 and shell 1220, the inside surface of shell 1220 is provided with the internal thread 1226 matched with external thread 1204.Because from the difference of voltage positive output socket 120, voltage negative accessory power outlet 140 is only that the quantity of internal electrical splicing ear is different with electric current input socket 160, with electric current output plug 162 and the difference of voltage positive output plug 122, voltage negative output plug 142 is only that the quantity in the electrical connection hole on joint pin is different, therefore be not described in detail in this about the structure of voltage negative accessory power outlet 140 and electric current input socket 160 and voltage negative output plug 142 and electric current output plug 162.
As shown in Figure 1; voltage positive output socket 120, voltage negative accessory power outlet 140 and between electric current input socket 160 and housing 18, be all fixed with a tin hat 11; the loose one end of tin hat 11 is provided with the lid-like that can be located on corresponding socket; electric connection terminal on each socket can be played a protective role; when carrying out electric capacity measuring; lid-like is only needed to take off from each socket; lid-like can be suspended on the below of each socket; can not be separated with capacitance tester; easy to use, and can ensure to lose.
As shown in Figure 1, housing 18 is also provided with display 13, display 13 can display measurement result.
As shown in Figure 1, housing 18 is also provided with printer 15, measurement data can directly print by printer 15, conveniently records and consults.
As shown in Figure 1, housing 18 is also provided with communication interface 17, the communication of capacitance tester and miscellaneous equipment can be realized, be convenient for measuring transmission and the storage of data.
The using method of the utility model capacitance tester is as follows:
As shown in Figure 1, during measurement, voltage positive output plug 122 is plugged on voltage positive output socket 120, voltage negative output plug 142 is plugged on voltage negative accessory power outlet 140, again electric current input plug 162 is plugged on electric current input socket 160, then respectively voltage positive output clamp 124 and voltage negative are exported the two ends that clamp 144 is clipped in first measured capacitance 30, the two ends of first measured capacitance 30 are electrically connected respectively by connection bus 40 with the two ends of second measured capacitance 30, then current measurement clamp 164 is stuck on the sleeve pipe 32 of second measured capacitance 30.Connect the power supply of capacitance tester 10, preheating 5 minutes, connects Test Switchboard, and the LCD screen of display 13 shows " in measurement---", represent that capacitance tester 10 exports test voltage AC28V to two measured capacitance 30 in parallel, carry out the electric capacity measuring of second measured capacitance 30.After about 5 seconds, red light extinguishes, and represents that capacitance tester stops exporting test voltage, the LCD screen of display 13 shows the capacitance of second measured capacitance 30.
The utility model is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, done all conversion, all drop within protection domain of the present utility model.
Claims (4)
1. capacitance tester, comprise housing, capacitance measurement circuit is provided with in described housing, described housing is provided with the voltage positive output socket be electrically connected with described capacitance measurement circuit respectively, voltage negative accessory power outlet and electric current input socket, also comprise the voltage positive output clamp be electrically connected with described voltage positive output socket by voltage positive output plug, the voltage negative be electrically connected with described voltage negative accessory power outlet by voltage negative output plug exports clamp, and the current measurement clamp to be electrically connected with described electric current input socket by electric current input plug, it is characterized in that: described voltage positive output socket and described voltage positive output plug are the quadrature arrangement cooperatively interacted, described voltage negative accessory power outlet and described voltage negative output plug are the three-core structure cooperatively interacted, described electric current input socket and described electric current input plug are the two-chip structure cooperatively interacted.
2. capacitance tester according to claim 1, is characterized in that: each described socket includes fixing base on the housing, and described base is provided with connecting cylinder, is provided with electric connection terminal in described connecting cylinder; Each described plug comprises the joint pin matched with described connecting cylinder, and the end of described joint pin is provided with the electrical connection hole of inserting for described electric connection terminal, and be provided with shell outside described joint pin, described joint pin is inserted in described connecting cylinder.
3. capacitance tester according to claim 2, is characterized in that: the outside surface of described connecting cylinder is provided with external thread, and the inside surface of described shell is provided with the internal thread matched with described external thread.
4. the capacitance tester according to Claims 2 or 3, is characterized in that: each described socket is all covered with tin hat, and the end winding support of described tin hat is between described base and described housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520392527.3U CN204649847U (en) | 2015-06-09 | 2015-06-09 | Capacitance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520392527.3U CN204649847U (en) | 2015-06-09 | 2015-06-09 | Capacitance tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204649847U true CN204649847U (en) | 2015-09-16 |
Family
ID=54102583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520392527.3U Expired - Fee Related CN204649847U (en) | 2015-06-09 | 2015-06-09 | Capacitance tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204649847U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324363A (en) * | 2016-10-10 | 2017-01-11 | 国家电网公司 | Device for capacitance measurement of series capacitor |
| CN110261683A (en) * | 2018-08-17 | 2019-09-20 | 国网安徽省电力有限公司黄山供电公司 | A kind of Assembled high-voltage shunted capacitor set detecting device |
-
2015
- 2015-06-09 CN CN201520392527.3U patent/CN204649847U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324363A (en) * | 2016-10-10 | 2017-01-11 | 国家电网公司 | Device for capacitance measurement of series capacitor |
| CN110261683A (en) * | 2018-08-17 | 2019-09-20 | 国网安徽省电力有限公司黄山供电公司 | A kind of Assembled high-voltage shunted capacitor set detecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20160609 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |