CN205120861U - Colliery is low voltage electric equipment comprehensive properties tester in pit - Google Patents
Colliery is low voltage electric equipment comprehensive properties tester in pit Download PDFInfo
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- CN205120861U CN205120861U CN201520836938.7U CN201520836938U CN205120861U CN 205120861 U CN205120861 U CN 205120861U CN 201520836938 U CN201520836938 U CN 201520836938U CN 205120861 U CN205120861 U CN 205120861U
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Abstract
The utility model provides a colliery is low voltage electric equipment comprehensive properties tester in pit, test terminal A establishes ties with the current test unit, then parallelly connected with short -circuit test unit, operate time test unit and electric leakage test unit respectively simultaneously. Test terminal A, ampere meter, electric capacity, short -circuit test button and test terminal B establish ties, and it has the protective tube still to establish ties between test terminal A and the ampere meter, second resistance and operate time test button form the experimental current circuit of operate time, and third resistance, resistance select change over switch, trimmer potentiometer and electric leakage test button component to leak electric test current circuit, test terminal A, protective tube, ampere meter, a series resistance, then it is parallelly connected with hourglass electric test current circuit with the experimental current circuit of operate time more respectively, establish ties with test terminal B afterwards, establish ties with digital timer in the parallelly connected back of the 3rd triggering signal that the triggering signal that electric capacity produced, the 2nd triggering signal that second resistance produced and third resistance produced.
Description
Technical field
The utility model relates to a kind of low voltage electrical equipment tester, particularly relates to a kind of underground coal mine low voltage electrical equipment general performance test.
Background technology
The existing instrument testing function singleness for underground coal mine low voltage electrical equipment all-round property testing, do not consider that mine service condition is poor, be easily out of order, and price is higher, volume is large, heavy, is not suitable for onsite application.
Summary of the invention
The purpose of this utility model is to provide that a kind of cost is low, the underground coal mine low voltage electrical equipment general performance test of compact conformation, easy to maintenance, the onsite application that is easy to carry, is convenient to.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of underground coal mine low voltage electrical equipment general performance test, comprise current testing unit, leak(age) test unit, actuation time test unit, short-circuit test unit, time display unit, rechargeable battery cell and A, B two calibrating terminals, it is characterized in that, calibrating terminal A and current testing units in series, then simultaneously respectively with short-circuit test unit, actuation time test unit and leak(age) test unit in parallel, then to connect with time display unit and calibrating terminal B; Rechargeable battery cell is connected with time display unit separately.
According to described underground coal mine low voltage electrical equipment general performance test, it is characterized in that, described current testing unit comprises reometer; Described leak(age) test unit comprises the first resistance, the 3rd resistance, resistance selection switch, trimmer potentiometer and leak(age) test button; Described actuation time test unit comprise the first resistance, the second resistance and actuation time test button; Described short-circuit test unit comprises electric capacity and short-circuit test button; Described time display unit comprises digital timer and resets reset button, and described rechargeable battery cell comprises rechargeable battery, charger and charging/power switch button; Calibrating terminal A, reometer, electric capacity, short-circuit test button and calibrating terminal B connect, and are also in series with protective tube between calibrating terminal A and reometer; Second resistance and actuation time test button composition actuation time test series circuit, 3rd resistance, resistance selection switch, trimmer potentiometer and leak(age) test button composition leak(age) test series circuit, calibrating terminal A, protective tube, reometer, the first resistant series, then test series circuit with actuation time more respectively and leak(age) test series circuit is in parallel, finally connect with calibrating terminal B again; Connect with digital timer after the second trigger pip that the first trigger pip that electric capacity produces, the second resistance produce and the 3rd trigger pip parallel connection that the 3rd resistance produces; Rechargeable battery is connected with digital timer.
Do not find the equipment of identical function can be had to occur with this instrument at present, existing product only can part of detecting equipment, the utility model is by mine anti-explosion low-voltage alternating-current vacuum feed switch, flame-proof mine lighting signal comprehensive protector, flame-proof mine hand drill comprehensive protector, the creepage protection function test of the equipment such as flame-proof mine leak detection relay and flameproof mining mobile transformer substation and the test of flame-proof mine hand drill comprehensive protector short-circuit protection function etc. concentrate on one, whether the electrical equipment solved after bargh maintenance of electromechanical equipment staff quick test maintenance reaches the problem of perfect facility standard-required, its advantage is as follows:
1, an instrument can detect plurality of devices.
2, instrument is to the strong adaptability of environment, is convenient to onsite application
2, provide rechargeable battery cell for oneself, once charging can use 6 hours continuously.
3, small and exquisite, easy to carry.
4, maintaining is simple.
5, compact conformation, cost are low.
Accompanying drawing explanation
Fig. 1 is structure composition frame chart of the present utility model;
Fig. 2 is circuit theory schematic diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described:
A kind of underground coal mine low voltage electrical equipment general performance test, as shown in Figure 1, primarily of current testing unit, leak(age) test unit, actuation time test unit, short-circuit test unit, time display unit, the composition such as rechargeable battery cell and A, B two calibrating terminals, calibrating terminal A and current testing units in series, then simultaneously respectively with short-circuit test unit, actuation time test unit and leak(age) test unit in parallel, then to connect with time display unit and calibrating terminal B; Rechargeable battery cell is connected with time display unit separately, wherein:
1, " current testing unit " is a reometer, and electric current displayed value is the actual current value of equipment under test when electric leakage or simulation short circuit.
2, " leak(age) test unit " comprises resistance selection switch (each gear connects different resistance respectively), trimmer potentiometer (carrying out resistance value fine setting) and leak(age) test button.Colliery electric test standard-required: the electrical equipment of normal live line work must be cut off the electricity supply when the insulating resistance value of charge circuit drops to specified value; Before equipment combined floodgate power transmission, the insulating resistance value of charge circuit lower than must interlock during specified value, makes equipment cannot power transmission, and specific standards is as shown in the table:
| Rated voltage (V) | 127 | 380 | 660 | 1140 |
| Action resistance (k Ω) | 2 | 3.5 | 11 | 20 |
| Locking resistance (k Ω) | 4 | 7 | 22 | 40 |
3, " test unit actuation time " comprise fixed resistance that resistance is 1k Ω and actuation time test button.This test is also called " the simulation person gets an electric shock and tests ", and actuation time should meet following standard:
4, " short-circuit test unit " comprises electric capacity and short-circuit test button.This function aims at the short-circuit protection function of test flame-proof mine hand drill comprehensive protector.
5, " time display unit " comprises digital timer and resets reset button.This function be record leak(age) test, actuation time test and short-circuit test time each equipment actuation time.
6, " rechargeable battery cell " comprises rechargeable battery one, charger (external) and charging/power switch button.Rechargeable battery cell provides working power for the digital timer tested actuation time.During charging, external charge power supply, voltage stabilizing restrictor are connected with rechargeable battery.
As shown in Figure 2, calibrating terminal A, protective tube, reometer, electric capacity, short-circuit test button and calibrating terminal B connect; Second resistance and actuation time test button composition actuation time test series circuit, 3rd resistance, resistance selection switch, trimmer potentiometer and leak(age) test button composition leak(age) test series circuit, calibrating terminal A, protective tube, reometer, the first resistant series, then test series circuit with actuation time more respectively and leak(age) test series circuit is in parallel, finally connect with calibrating terminal B again; Connect with digital timer after the second trigger pip that the first trigger pip that electric capacity produces, the second resistance produce and the 3rd trigger pip parallel connection that the 3rd resistance produces; Rechargeable battery is connected with digital timer.
The implementation procedure of the every test function of this comprehensive tester is as follows:
1, short-circuit test (the main device used is electric capacity, short-circuit test button and digital timer).
Calibrating terminal A and calibrating terminal B is applied to respectively (as A, B two-phase) in any two-phase of load side of flame-proof mine coal drill transformer integrated protection device; start equipment under test; after equipment runs well; press the short-circuit test button of comprehensive tester; electric current will from calibrating terminal A through protective tube, reometer, electric capacity, short-circuit test button; finally arrive calibrating terminal B, so just achieve the simulation short circuit through electric capacity of A phase and B phase.The current values that reometer is readable when going out to simulate short circuit, the electric capacity of simulation short circuit draws the first trigger pip triggered digital timer and carries out timing.
2, test actuation time (the main device used be the first resistance, the second resistance, actuation time test button and digital timer).
Calibrating terminal A is applied to equipment under test (as mine anti-explosion AC vacuum feeding switch, flame-proof mine lighting signal comprehensive protector etc.) any phase of load side (A phase, B phase or C phase) on, calibrating terminal B is connected on ground wire, start equipment under test, after equipment runs well, press test button actuation time of comprehensive tester, electric current from calibrating terminal A through protective tube, reometer, first resistance, second resistance, actuation time test button and calibrating terminal B, finally lead to the earth, so just achieve simulation person electric shock test (the first resistance R1+ second resistance R2=750 Ω+250 Ω=1000 Ω).Leakage current numerical value when reometer can be tested the reading operation time, the second resistance is drawn the second trigger pip triggered digital timer and carries out timing.
3, leak(age) test (the main device used is the first resistance, the 3rd resistance, resistance selection switch, trimmer potentiometer, leak(age) test button and digital timer).
Calibrating terminal A is applied to equipment under test (as mine anti-explosion AC vacuum feeding switch, flame-proof mine lighting signal comprehensive protector etc.) any phase of load side (A phase, B phase or C phase) on, calibrating terminal B is connected on ground wire, start equipment under test, after equipment runs well, press the leak(age) test button of comprehensive tester, electric current from calibrating terminal A through protective tube, reometer, first resistance, 3rd resistance, resistance selection switch (selecting different resistance values according to concrete testing equipment), trimmer potentiometer (within the scope of 0-5k Ω, resistance value being finely tuned), leak(age) test button and calibrating terminal B, finally lead to the earth, so just achieve leak(age) test function.Reometer can read leakage current numerical value during leak(age) test, the 3rd resistance is drawn the 3rd trigger pip triggered digital timer and carries out timing.
4, rechargeable battery is charged by external charger (AC220V/DC9V), provides working power by it to digital timer.
5,1 port of digital timer (comprising timing reset button) is timing control end, 2 ports are public negative terminal, 4 ports for resetting control end, 9 ports are working power negative pole, 10 ports are working power positive pole.
6, the effect of protective tube is that protection the machine exempts from heavy current impact destruction.
The utility model is used for creepage protection function test and the test of flame-proof mine hand drill comprehensive protector short-circuit protection function of the equipment such as mine anti-explosion low-voltage alternating-current vacuum feed switch, flame-proof mine lighting signal comprehensive protector, flame-proof mine hand drill comprehensive protector, flame-proof mine leak detection relay, flameproof mining mobile transformer substation, and whether the electrical equipment solved after bargh maintenance of electromechanical equipment staff quick test maintenance reaches the problem of perfect facility standard-required.In the utility model use procedure, time test data accurately, reliable, the design of adjustable potentiometer makes the machine in (1-50k Ω) scope, simulates related electric line-to-ground insulating resistance value, and continuously adjustabe, simple, convenient.
Claims (2)
1. a underground coal mine low voltage electrical equipment general performance test, comprise current testing unit, leak(age) test unit, actuation time test unit, short-circuit test unit, time display unit, rechargeable battery cell and A, B two calibrating terminals, it is characterized in that, calibrating terminal A and current testing units in series, then simultaneously respectively with short-circuit test unit, actuation time test unit and leak(age) test unit in parallel, then to connect with time display unit and calibrating terminal B; Rechargeable battery cell is connected with time display unit separately.
2. underground coal mine low voltage electrical equipment general performance test according to claim 1, is characterized in that, described current testing unit comprises reometer; Described leak(age) test unit comprises the first resistance, the 3rd resistance, resistance selection switch, trimmer potentiometer and leak(age) test button; Described actuation time test unit comprise the first resistance, the second resistance and actuation time test button; Described short-circuit test unit comprises electric capacity and short-circuit test button; Described time display unit comprises digital timer and resets reset button, and described rechargeable battery cell comprises rechargeable battery, charger and charging/power switch button;
Calibrating terminal A, reometer, electric capacity, short-circuit test button and calibrating terminal B connect, and are also in series with protective tube between calibrating terminal A and reometer;
Second resistance and actuation time test button composition actuation time test series circuit, 3rd resistance, resistance selection switch, trimmer potentiometer and leak(age) test button composition leak(age) test series circuit, calibrating terminal A, protective tube, reometer, the first resistant series, then test series circuit with actuation time more respectively and leak(age) test series circuit is in parallel, finally connect with calibrating terminal B again;
Connect with digital timer after the second trigger pip that the first trigger pip that electric capacity produces, the second resistance produce and the 3rd trigger pip parallel connection that the 3rd resistance produces;
Rechargeable battery is connected with digital timer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520836938.7U CN205120861U (en) | 2015-10-27 | 2015-10-27 | Colliery is low voltage electric equipment comprehensive properties tester in pit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520836938.7U CN205120861U (en) | 2015-10-27 | 2015-10-27 | Colliery is low voltage electric equipment comprehensive properties tester in pit |
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| Publication Number | Publication Date |
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| CN205120861U true CN205120861U (en) | 2016-03-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342852A (en) * | 2018-10-26 | 2019-02-15 | 安徽理工大学 | Mining comprehensive insurance system detection device based on PLC and touch screen |
| WO2023116650A1 (en) * | 2021-12-22 | 2023-06-29 | 抚顺中煤科工检测中心有限公司 | Intelligent testing system and method for safety parameters of mine explosion-proof electrical apparatus |
-
2015
- 2015-10-27 CN CN201520836938.7U patent/CN205120861U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342852A (en) * | 2018-10-26 | 2019-02-15 | 安徽理工大学 | Mining comprehensive insurance system detection device based on PLC and touch screen |
| WO2023116650A1 (en) * | 2021-12-22 | 2023-06-29 | 抚顺中煤科工检测中心有限公司 | Intelligent testing system and method for safety parameters of mine explosion-proof electrical apparatus |
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