CN201886085U - Liquid resistor preparation testing device of a liquid resistor soft-start device - Google Patents
Liquid resistor preparation testing device of a liquid resistor soft-start device Download PDFInfo
- Publication number
- CN201886085U CN201886085U CN2010202554964U CN201020255496U CN201886085U CN 201886085 U CN201886085 U CN 201886085U CN 2010202554964 U CN2010202554964 U CN 2010202554964U CN 201020255496 U CN201020255496 U CN 201020255496U CN 201886085 U CN201886085 U CN 201886085U
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- liquid
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- liquid resistor
- liquid resistance
- resistance
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Abstract
The utility model relates to a liquid resistor preparation testing device applied on a liquid resistor soft-start device, as an integrated testing tool composed of a power section, a liquid resistor section, a current transformer section, an AC/DC conversion section, a logic operation section and a display section, wherein the received real-time voltage, current digital signal is converted into the analog signal by a PC single-chip microcomputer and the signal is programmed by the division program and displayed by the LCD digit to very conveniently and quickly measure the signal. Thus the resistance liquid is accurately prepared to ensure successive start of a motor.
Description
Affiliated technical field:
The utility model is a kind of liquid resistance allotment proving installation that is applied to liquid resistance soft start equipment, it mainly is the dosing of the on-the-spot liquid resistance of commissioning staff for convenience, guarantee the accuracy of liquid resistance value, the starting current of motor is controlled in the scope of setting, thereby reduces the impact of electric motor starting electrical network.This kind device can accurately be measured liquid resistance YR resistance, has reduced the complicated procedures and the measuring error of dosing.
Technical background:
The electrolytic solution rheostat is made up of the electrolyte tank of 3 mutually insulateds in the liquid resistance soft start equipment, and inside fills electrolytic solution and one group of corresponding conductive plate (fixed plate and movable plate electrode) respectively, and movable plate electrode is by gear train, servo-drive system and PLC control operation.Dependence is dissolved in the conduction of electrolyte ion in the electrolytic solution, electrolyte is filled in two in opposite directions between the pole plate of plane, constitute the liquid conduction body of a pure resistance, the size of liquid resistance is that the distance of conducting medium concentration and two-plate decides in the electrolyte tank by changing, so the allotment of liquid resistance liquid is very crucial.The electric current and the voltage of actual measurement are normally read in the allotment of liquid resistance liquid at present from multimeter, by calculating the size that needs resistance, the Installation and Debugging personnel need be equipped with miniature transformer, pincerlike multimeter, lead, instruments such as counter are surveyed at the scene, need repeated multiple times to measure electric current and voltage, repeatedly allotment just can mix the liquid resistance resistance that needs, wiring allotment operation is loaded down with trivial details, error ratio is bigger, operate not directly perceived, inconvenient, dangerous, the accuracy of liquid resistance resistance is not high yet, particularly not really skilled commissioning staff, be easy to allotment failure, thereby can not guarantee that soft equipment brings into play due effect.
Summary of the invention:
In order to realize allocating liquid resistance resistance accurately, guarantee in operating process convenience, intuitively, reliably reach safety and simplification in the test process, the utility model provide a kind of simple for structure, use the liquid resistance liquid resistance allotment proving installation simple, that integrated degree is high.
Basic technical scheme of the present utility model is made up of power unit, liquid resistance part, current transformer part, AC/DC conversion part, logical operation part and demonstration etc.Four terminal mensurations are adopted in resistance measurement, with miniature transformer 220/24V, a 12V, 6V, be provided with three taps, four extension lines, divide 24V, 12V, three gears of 6V, the former termination 220V power supply of transformer, two extension lines of secondary side are directly received on rheostatic two pole plates of electrolytic solution, receive in the test loop with a special-purpose current transformer again.Voltage signal that records and current signal, by the A/D conversion, become simulating signal and deliver to logic control system, control system mainly is made up of the C8051F040 single-chip microcomputer, mainly finishes the reception and the processing of data.System demonstrates actual resistance value by the division arithmetic result by digital display screen with real-time voltage, the current value that collects.
The beneficial effects of the utility model are, this device is novel in design, simple for structure, simple to operate, directly perceived, low price, and the integrated design scheme on integrated automatic control survey, shows more superiorly, is a kind of AC resistance tester of special use.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the utility model front panel outside drawing
Fig. 2 is a side-looking outside drawing of the present utility model
Fig. 3 is a back of the present utility model outside drawing
Fig. 4 is a system flow frame diagram of the present utility model
Embodiment:
Real-time voltage 2, electric current 3 and liquid resistance 4 indications are arranged on the utility model device such as Fig. 1 panel, the terminal 5 and the terminal 6 of test output are housed, power supply indication 8 also is housed in addition, power switch 9 and test starting button 10.There is heat radiation blinds air vent 11 the body back from accompanying drawing 2, and the body back side is provided with insurance fuse holder 12 and supply socket hole 13 in accompanying drawing 3.
Fig. 4 is a system flow frame diagram of the present utility model, transformer, mutual inductor, PC single-chip microcomputer, processor etc. are housed in the body, the terminal that test output is housed is received on the sound pole plate of liquid resistance box, the power supply of this device is plugged, power light is bright, the native system closed loop, selector switch is transferred to 24V, 12V or 6V, when in electrolyte tank, injecting electrolytic solution, the electric current of show circuit and pressure drop in real time, Direction Center by the division arithmetic programming, shows the accurate resistance of liquid resistance YR with the current/voltage simulating signal that collects by display screen.
Claims (1)
1. a liquid resistance that is applied to liquid resistance soft start equipment is allocated proving installation, this liquid resistance allotment proving installation adopts integrated design, test voltage 24V, 12V, three gears of 6V are selected, can detect electric current, voltage and the true resistance value at soft start equipment liquid resistance two ends in real time, it is characterized in that: constitute by the transformer of special use, precision current mutual inductor, PC single-chip microcomputer, digital display screen, guidance panel etc., and design and assembly are one; The turnover line all connects from terminal row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202554964U CN201886085U (en) | 2010-07-07 | 2010-07-07 | Liquid resistor preparation testing device of a liquid resistor soft-start device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202554964U CN201886085U (en) | 2010-07-07 | 2010-07-07 | Liquid resistor preparation testing device of a liquid resistor soft-start device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201886085U true CN201886085U (en) | 2011-06-29 |
Family
ID=44183633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202554964U Expired - Fee Related CN201886085U (en) | 2010-07-07 | 2010-07-07 | Liquid resistor preparation testing device of a liquid resistor soft-start device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201886085U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823131A (en) * | 2012-11-19 | 2014-05-28 | 浙江海得新能源有限公司 | Simulation circuit and test method for resistor impact endurance test |
| CN107219456A (en) * | 2017-05-23 | 2017-09-29 | 国网天津市电力公司 | Waterr rheostat test device |
-
2010
- 2010-07-07 CN CN2010202554964U patent/CN201886085U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103823131A (en) * | 2012-11-19 | 2014-05-28 | 浙江海得新能源有限公司 | Simulation circuit and test method for resistor impact endurance test |
| CN107219456A (en) * | 2017-05-23 | 2017-09-29 | 国网天津市电力公司 | Waterr rheostat test 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: 20110629 Termination date: 20160707 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |