CN201096837Y - Capacitance and reactance integrated testing instrument - Google Patents
Capacitance and reactance integrated testing instrument Download PDFInfo
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- CN201096837Y CN201096837Y CNU2007201021956U CN200720102195U CN201096837Y CN 201096837 Y CN201096837 Y CN 201096837Y CN U2007201021956 U CNU2007201021956 U CN U2007201021956U CN 200720102195 U CN200720102195 U CN 200720102195U CN 201096837 Y CN201096837 Y CN 201096837Y
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Abstract
The utility model relates to a capacitive reactance comprehensive test instrument belonging to an equipment of the series and parallel capacitors and reactor parameters in a testing power network, which mainly to resolve the technical difficulties of heavy workload, low efficiency, reading inaccuracy and unsafe operation existed in the prior testing equipment. In the technical scheme adopted in the utility model, a capacitive reactance comprehensive test instrument comprises a single phase regulator, four alternating current ammeters, an AC voltmeter, a frequency meter, a capacitor switch and a reactor switch, wherein the utility model also comprises a sensor, a programmable controller, a liquid crystal touch display and a printer. One end of the alternating current ammeter (2) is connected to an output end of the single-phase regulator. One end of the AC voltmeter is linked with the other end of the alternating current ammeter (2), and the other end of the AC voltmeter is connected to the other output end of the single-phase regulator. One end of the frequency meter is connected to the other end of the alternating current ammeter (2), and the other end of the frequency meter is connected to the other output end of the single-phase regulator.
Description
Technical field
The utility model relates to a kind of capacity reactance comprehensive tester, and it belongs to a kind of instrument of testing series and parallel capacitor and reactor parameter in the electrical network.
Background technology
Capacitor is connected in parallel on the bus of network system, is similar to a capacitive load on the system busbar, the capacitive reactive power of its absorption system, and this just is equivalent to shnt capacitor and sends perceptual idle to system.Therefore, shnt capacitor can provide lagging reactive power to system, improves the voltage levvl of receiving end bus, and simultaneously, it has reduced perceptual idle conveying on the circuit, has reduced voltage and power attenuation, has therefore improved the circuit ability to transmit electricity.But capacitor makes capacitor overheated throwing, cutting and will produce very big excess current in the process; And under superpotential effect, the initial free voltage of element is reduced to below the applied electric field intensity, cause physics, chemistry, electric effect thus, make insulation accelerated aging, decomposition, produce gas, form vicious cycle, case shell pressure is increased, cause tank wall external drum so that insulation to reduce and damage and even blast, cause great equipment scaling loss and grid power blackout accident.For avoiding the generation of this type of accident, grasp its operation conditions at any time, just tackle it and carry out preventative test.Traditional method of testing is the current voltmeter method, though the testing tool of this method of testing is simple, its workload is big, and required time is long, and efficient is low, read untrue and operate dangerous.
Summary of the invention
The purpose of this utility model be solve that existing testing tool exists that workload is big, required time is long, efficient is low, read untrue and operate unsafe technological difficulties and a kind of simple to operate, safe and reliable, time saving and energy saving, high efficiency and test figure capacity reactance comprehensive tester accurately is provided.
The utility model for the technical scheme that solves above-mentioned technological difficulties and adopt is: the capacity reactance comprehensive tester, it comprises single-phase voltage regulating device, four alternating current ammeters, A.C. voltmeter, frequency meter, capacitor switch and reactor switch, and wherein: it also comprises sensor, Programmable Logic Controller, lcd touch system and printer; One end of alternating current ammeter (2) is connected with an output terminal of single-phase voltage regulating device; One end of A.C. voltmeter is connected with the other end of alternating current ammeter (2), and the other end of A.C. voltmeter is connected with another output terminal of single-phase voltage regulating device; One end of frequency meter is connected with the other end of alternating current ammeter (2), and the other end of frequency meter is connected with another output terminal of single-phase voltage regulating device; One end of capacitor switch A phase connects with a tested capacitor A end mutually, one end of reactor switch A phase connects with a tested reactor A end mutually, after connecting, the other end of capacitor switch A phase and the reactor switch A other end mutually is connected with an end of alternating current ammeter (5) again, the other end of alternating current ammeter (5) is connected with the other end of alternating current ammeter (2), and another output terminal of single-phase voltage regulating device is connected with the other end of the tested capacitor A other end mutually and tested reactor A phase; One end of capacitor switch B phase connects with a tested capacitor B end mutually, one end of reactor switch B phase connects with a tested reactor B end mutually, after connecting, the other end of capacitor switch B phase and the reactor switch B other end mutually is connected with an end of alternating current ammeter (8) again, the other end of alternating current ammeter (8) is connected with the other end of alternating current ammeter (2), and another output terminal of single-phase voltage regulating device is connected with the other end of the tested capacitor B other end mutually and tested reactor B phase; One end of capacitor switch C phase connects with a tested capacitor C end mutually, one end of reactor switch C phase connects with a tested reactor C end mutually, after connecting, the other end of capacitor switch C phase and the reactor switch C other end mutually is connected with an end of alternating current ammeter (11) again, the other end of alternating current ammeter (11) is connected with the other end of alternating current ammeter (2), and another output terminal of single-phase voltage regulating device is connected with the other end of the tested capacitor C other end mutually and tested reactor C phase; The signal input of sensor is connected with the other end of alternating current ammeter (2), the signal output of sensor is connected with the signal input part of Programmable Logic Controller, the control end of Programmable Logic Controller is connected with the lcd touch system, and the output terminal of Programmable Logic Controller is connected with printer.
Because the utility model has adopted technique scheme, energy three loop synchro measures, synchronous calculating capacitance and the reactance value automatically of showing also shortened power off time greatly, and anti-electromagnetic interference capability are strong.Therefore, compare, the utlity model has advantages such as simple to operate, safe and reliable, time saving and energy saving, high efficiency and test figure be accurate with background technology.
Description of drawings
Accompanying drawing is circuit theory diagrams of the present utility model.
Embodiment:
Below in conjunction with drawings and Examples the utility model is described in further detail.
As shown in drawings, capacity reactance comprehensive tester in the present embodiment, it comprises single-phase voltage regulating device (1), four alternating current ammeter DH3-AA (2), (5), (8), (11), A.C. voltmeter DH3-AV (3), frequency meter DB3-Hz (4), capacitor switch (K1) and reactor switch (K2), and wherein: it also comprises sensor DB3 (14), Programmable Logic Controller FX2N-16MR-001 (15), the A900GOT of lcd touch system (16) and printer (17); One end of alternating current ammeter (2) is connected with an output terminal (B) of single-phase voltage regulating device; One end of A.C. voltmeter (3) is connected with the other end of alternating current ammeter (2), and the other end of A.C. voltmeter (3) is connected with another output terminal (D) of single-phase voltage regulating device; One end of frequency meter (4) is connected with the other end of alternating current ammeter (2), and the other end of frequency meter (4) is connected with another output terminal (D) of single-phase voltage regulating device; One end of capacitor switch A phase (K1a) and the tested capacitor A end connection of (6) mutually, one end of reactor switch A phase (K2a) and the tested reactor A end connection of (7) mutually, the other end of capacitor switch A phase (K1a) is connected with an end of alternating current ammeter (5) after the other end of (K2a) connects mutually with reactor switch A again, the other end of alternating current ammeter (5) is connected with the other end of alternating current ammeter (2), and another output terminal (D) of single-phase voltage regulating device and tested capacitor the A other end of (5) and the other end of tested reactor A phase (7) mutually are connected; One end of capacitor switch B phase (K1b) and the tested capacitor B end connection of (9) mutually, one end of reactor switch B phase (K2b) and the tested reactor B end connection of (10) mutually, the other end of capacitor switch B phase (K1b) is connected with an end of alternating current ammeter (8) after the other end of (K2b) connects mutually with reactor switch B again, the other end of alternating current ammeter (8) is connected with the other end of alternating current ammeter (2), and another output terminal (D) of single-phase voltage regulating device and tested capacitor the B other end of (9) and the other end of tested reactor B phase (10) mutually are connected; One end of capacitor switch C phase (K1c) and the tested capacitor C end connection of (12) mutually, one end of reactor switch C phase (K2c) and the tested reactor C end connection of (13) mutually, the other end of capacitor switch C phase (K1c) is connected with an end of alternating current ammeter (11) after the other end of (K2c) connects mutually with reactor switch C again, the other end of alternating current ammeter (11) is connected with the other end of alternating current ammeter (2), and another output terminal (D) of single-phase voltage regulating device and tested capacitor the C other end of (12) and the other end of tested reactor C phase (13) mutually are connected; The signal input of sensor (14) is connected with the other end of alternating current ammeter (2), the signal output of sensor (14) is connected with the signal input part of Programmable Logic Controller (15), the control end of Programmable Logic Controller (15) is connected with lcd touch system (16), and the output terminal of Programmable Logic Controller (15) is connected with printer (17).
Numerical value according to each reometer, voltage table and the frequency meter that detect, calculated by following formula by Programmable Logic Controller (15):
C＝I/2πfU L＝U/2πfI
In the formula: C: the measured value of capacitor; L: the measured value of reactor; I: the numerical value of reometer; F: the numerical value of frequency meter; U: the numerical value of voltage table; π: get 3.14.
The course of work of the present utility model is: when carrying out the measurement of capacitor, (K1) closes with capacitor switch, reactor switch (K2) draws back (as reactor is measured, only need capacitor switch K1 is drawn back, reactor switch K2 closes just passable), at the AC of single-phase voltage regulating device 1 end input 220V voltage, carry out pressure regulation, and add certain voltage at the two ends of three branch roads of capacitor, by sensor (14) with voltage signal, current signal passes to Programmable Logic Controller (15), after calculating by computing system by Programmable Logic Controller (15), just the result of the capacitor of measurement can be presented on the LCD screen, and print by mini-printer (17).The numerical value of reometer, voltage table and frequency meter also can directly show by LCD screen.
Claims (1)
1, a kind of capacity reactance comprehensive tester, it comprises single-phase voltage regulating device, four alternating current ammeters, A.C. voltmeter, frequency meter, capacitor switch and reactor switch, it is characterized in that: further comprising sensor, Programmable Logic Controller, lcd touch system and printer; One end of alternating current ammeter (2) is connected with an output terminal of single-phase voltage regulating device; One end of A.C. voltmeter is connected with the other end of alternating current ammeter (2), and the other end of A.C. voltmeter is connected with another output terminal of single-phase voltage regulating device; One end of frequency meter is connected with the other end of alternating current ammeter (2), and the other end of frequency meter is connected with another output terminal of single-phase voltage regulating device; One end of capacitor switch A phase connects with a tested capacitor A end mutually, one end of reactor switch A phase connects with a tested reactor A end mutually, after connecting, the other end of capacitor switch A phase and the reactor switch A other end mutually is connected with an end of alternating current ammeter (5) again, the other end of alternating current ammeter (5) is connected with the other end of alternating current ammeter (2), and another output terminal of single-phase voltage regulating device is connected with the other end of the tested capacitor A other end mutually and tested reactor A phase; One end of capacitor switch B phase connects with a tested capacitor B end mutually, one end of reactor switch B phase connects with a tested reactor B end mutually, after connecting, the other end of capacitor switch B phase and the reactor switch B other end mutually is connected with an end of alternating current ammeter (8) again, the other end of alternating current ammeter (8) is connected with the other end of alternating current ammeter (2), and another output terminal of single-phase voltage regulating device is connected with the other end of the tested capacitor B other end mutually and tested reactor B phase; One end of capacitor switch C phase connects with a tested capacitor C end mutually, one end of reactor switch C phase connects with a tested reactor C end mutually, after connecting, the other end of capacitor switch C phase and the reactor switch C other end mutually is connected with an end of alternating current ammeter (11) again, the other end of alternating current ammeter (11) is connected with the other end of alternating current ammeter (2), and another output terminal of single-phase voltage regulating device is connected with the other end of the tested capacitor C other end mutually and tested reactor C phase; The signal input of sensor is connected with the other end of alternating current ammeter (2), the signal output of sensor is connected with the signal input part of Programmable Logic Controller, the control end of Programmable Logic Controller is connected with the lcd touch system, and the output terminal of Programmable Logic Controller is connected with printer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201021956U CN201096837Y (en) | 2007-08-07 | 2007-08-07 | Capacitance and reactance integrated testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201021956U CN201096837Y (en) | 2007-08-07 | 2007-08-07 | Capacitance and reactance integrated testing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201096837Y true CN201096837Y (en) | 2008-08-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201021956U Expired - Fee Related CN201096837Y (en) | 2007-08-07 | 2007-08-07 | Capacitance and reactance integrated testing instrument |
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| CN (1) | CN201096837Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135580A (en) * | 2011-01-24 | 2011-07-27 | 刘国光 | Capacitor detector |
| CN102175925A (en) * | 2011-03-21 | 2011-09-07 | 江苏省电力公司无锡供电公司 | Measuring device for measuring capacitance in parallel capacitor bank |
-
2007
- 2007-08-07 CN CNU2007201021956U patent/CN201096837Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102135580A (en) * | 2011-01-24 | 2011-07-27 | 刘国光 | Capacitor detector |
| CN102135580B (en) * | 2011-01-24 | 2013-05-01 | 宁波海利达电器有限公司 | Capacitor detector |
| CN102175925A (en) * | 2011-03-21 | 2011-09-07 | 江苏省电力公司无锡供电公司 | Measuring device for measuring capacitance in parallel capacitor bank |
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Legal Events
| Date | Code | Title | Description |
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| 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: 20080806 Termination date: 20090907 |