CN207689594U - Power distribution equipment protector multifunctional tester - Google Patents
Power distribution equipment protector multifunctional tester Download PDFInfo
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- CN207689594U CN207689594U CN201721914674.8U CN201721914674U CN207689594U CN 207689594 U CN207689594 U CN 207689594U CN 201721914674 U CN201721914674 U CN 201721914674U CN 207689594 U CN207689594 U CN 207689594U
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Abstract
The utility model discloses a kind of power distribution equipment protector multifunctional testers.The utility model adopts the following technical solution.Including：Rechargeable battery and inversion unit, output unit, time test unit, the rechargeable battery in rechargeable battery and inversion unit are connect with DC power supply inverter, and rechargeable battery carries external charger interface；Output unit includes：Transformer, instrument power module, alternating voltage module, alternating current module, DC voltage module are controlled, control transformer output end is connect with instrument power module, alternating voltage module, alternating current module, DC voltage module respectively；Ac voltage output, alternating current output end, DC voltage output end are serially connected with button AN1 1, button AN2 1, button AN3 1 and then are connect with binding post 1, binding post 2, binding post 4 respectively；After the block contact of above-mentioned button is concatenated with the vacant normally opened contact K6 in power distribution equipment inside, the triggering interface of digital timer is accessed.
Description
Technical field
The utility model is related to a kind of protector testers.
Background technology
The existing instrument for mine high and low pressure power distribution equipment overcurrent protection test, checking function are more single and general
Property is not strong.Such as can testing high voltage feed equipment intellective protector overcurrent protection performance, but to the protector mistake of low-voltage equipment
Fluidity can be tested, and this kind of test equipment does not consider mine field working conditions, and be easy to be out of order and higher price, body
Big, heavy, the unsuitable onsite application of product.
Now with the development of digitizing technique, current transformer and digitizer used in traditional overcurrent protection
Be connected with various inconvenience, less adapt to requirement of the digitizing technique to overcurrent protection sample of signal, transmission and processing.Usually pass
The primary side high current of protected circuit is usually converted to the small electricity that secondary side rated current is 5A by the current transformer of system
Stream, however such electric current is still very big, it is difficult to directly connect use with digital circuit, it is necessary to could and be protected using processing
Circuit is connected.
A kind of present novel current transformer is that primary side high current signal is directly converted directly into secondary side is specified
Exchange small voltage signal, this mutual inductor secondary side is ac voltage signal with the linear ratio of primary side high current, can directly with
Digital circuit is connected, and eliminates and reprocesses circuit to signal.This Current Transformer Secondary side rated voltage has 200 mV and 1 V
Etc. a variety of, to the power distribution equipment done by this current transformer, it is necessary to which a kind of test being capable of providing accurate mV step voltages is set
It is standby.
Also a kind of current transformer is that secondary side rated current is changed into 0.5 from 5 A as traditional mutual inductor
A kind of A, to the power distribution equipment done by this current transformer, it is necessary to test equipment being capable of providing accurate mA grades of electric current.
In addition there is a kind of power distribution equipment, be directly to connect a upper resistance in the output end of conventional current mutual inductor, so
Signal is pressed by over commutation circuit direct output of DC current, then will be in the protector of this signal transmission to power distribution equipment
Reason.
Since the protector of most of power distribution equipment is connected with these three signals, so this multi-functional survey of design
Examination instrument can provide mV grades of ac voltage signals, mA grades of ac current signals, precision DC voltage signal.This instrument is also devised with
One digital timer can test the operating time of protection of power distribution equipment.
Invention content
The utility model aim be to provide a kind of low cost, it is compact-sized, easy to maintain, easy to carry, make convenient for scene
With the multifunctional tester for the test of power distribution equipment protector.
To achieve the above object, the utility model adopts the following technical solution.
A kind of power distribution equipment protector multifunctional tester,
Including：Rechargeable battery and inversion unit, output unit, time test unit, in rechargeable battery and inversion unit
Rechargeable battery is connect with DC power supply inverter, and rechargeable battery carries external charger interface；
Output unit includes：Control transformer, instrument power module, alternating voltage module, alternating current module, direct current
Die block, control transformer output end respectively with instrument power module, alternating voltage module, alternating current module, DC voltage
Module connects；
Instrument power module includes the rectifier bridge for being parallel with capacitance, voltmeter, ammeter, digital timer, above each instrument
Table concatenates respective switch, then in parallel with the output end of rectifier bridge；
Alternating voltage module includes alternating voltage adjustment module, two adjustment potentiometers, and alternating voltage adjusts module and adjusts
Whole potentiometer concatenation, alternating voltage adjustment module output end simultaneously connect voltmeter；
Alternating current module includes alternating current adjustment module, two adjustment potentiometers, and alternating current adjusts module and adjusts
Whole potentiometer concatenation, alternating current adjust module output end and concatenate ammeter；
DC voltage module includes the rectifier bridge for being parallel with capacitance, DC voltage adjustment module, adjustment potentiometer, direct current
Pressure adjustment module is concatenated with adjustment potentiometer, then with rectifier bridge and connect, DC voltage adjusts module output end and is simultaneously connected to voltage
Table；
Ac voltage output, alternating current output end, DC voltage output end are serially connected with button AN1-1, button respectively
Then AN2-1, button AN3-1 are connect with binding post 1, binding post 2, binding post 4；
After the block contact of above-mentioned button is concatenated with the vacant normally opened contact K6 in power distribution equipment inside, digital timer is accessed
Trigger interface.
According to the power distribution equipment protector multifunctional tester, rechargeable battery is electric using the chargeable lithium of 12V 20AH
Pond, rechargeable battery are connect by fuse with DC power supply inverter.
According to the power distribution equipment protector multifunctional tester, control transformer is with tri- kinds of outputs of 7V, 14V, 28V
End.
According to the power distribution equipment protector multifunctional tester, alternating voltage adjusts module, alternating current adjusts mould
Block is all made of AC voltage regulator, and DC voltage adjusts module and uses direct current stabilizer.
Existing product is only capable of part of detecting equipment at present, and the utility model can test mine anti-explosion low-voltage alternating-current vacuum feed
It is the inverse time overpower protection of the equipment such as switch, flameproof mining mobile transformer substation, flameproof high-voltage vacuum distribution equipment for mining, short
Road defencive function.This multifunctional tester solves bargh maintenance of electromechanical equipment staff, it is difficult to quickly examine repair
Whether electrical equipment afterwards reaches the problem of equipment standard requires.
Its advantage is as follows：1, there is this multifunctional tester a variety of electric currents, voltage output interface, an instrument can detect
Plurality of devices；2, this multifunctional tester is convenient for onsite application to the adaptable of environment；3, this multifunctional tester, which is provided for oneself, fills
Electric battery unit, primary charging can be used continuously 8 hours；Compact structure, it is easy to carry；Maintaining is simple, compact-sized, make
Valence is low.
Description of the drawings
Fig. 1 is the circuit block diagram of the utility model.
Fig. 2 is the circuit diagram of the utility model.
In attached drawing：1, external charger；2, fuse；3, transformer is controlled；4, rechargeable battery and inversion unit；5, defeated
Go out unit；6, time test unit；M1, alternating voltage adjust module；M2, alternating current adjust module；M3, DC voltage tune
Mould preparation block；W1, AC0-1000mV adjust potentiometer；W2, AC1-10V adjust potentiometer；W3, AC0-1000mA adjust current potential
Device；W4, AC1-5A adjust potentiometer；W5, DC0-24V adjust potentiometer；K1, AC10V voltmeter switch；K2, AC5A ammeter
Switch；K3, DC24V voltmeter switch；K4, timer switch；Change-over switch is connect inside and outside K5, timer；K6, power distribution equipment
Interior vacant normal opened contact；AN1-1, alternating voltage export finger contact；AN1-2, alternating voltage output triggering contact；AN2-1、
Alternating current exports finger contact；AN2-2, alternating current output triggering contact；AN3-1, direct voltage output finger contact；
AN3-2, direct voltage output trigger contact.
Specific implementation mode
The utility model is further described in the following with reference to the drawings and specific embodiments：
As shown, the utility model includes mainly：Rechargeable battery and inversion unit 4, output unit 5, time test list
Member 6 forms.Corresponding component units, i.e. cellular construction in figure in dotted line frame.
Rechargeable battery and inversion unit 4 are connected with output unit 5, the alternating current output in output unit, alternating voltage
Output, direct voltage output three parts are in parallel, then connect with calibrating terminal.
Rechargeable battery and inversion unit 4 include：External charger, rechargeable battery one, DC power supply inverter.Charging electricity
Pond is the total working power of this test equipment, and it is 50 Hz voltages that DC power supply, which is changed into frequency, by DC power supply inverter
For 220V sine wave alternating currents.Rechargeable battery uses the rechargeable battery of 12V 20AH, is charged using external charger.
Output unit 5 includes：It controls transformer, alternating voltage module, alternating current module, DC voltage module, survey
Try terminal.Control transformer 3 and export different voltages, respectively with corresponding power module, adjust the connections such as potentiometer, can be used for
Export DC voltage, alternating voltage and alternating current.Control transformer 3 is connected with DC5V power modules, for instrument power supply.
Time test unit 6 includes：Digital stopwatch, this element can be used for power distribution equipment and inputted to protector in this instrument
After corresponding test signal, the actuation time of power distribution equipment defencive function is tested.
The realization process of the multifunctional tester items test function is as follows.
As shown in Fig. 2, binding post 1-5 tests alternating current-direct current signal for instrument output, wherein：It is exported between binding post 1 and 3
AC10V；AC5A is exported between binding post 2 and 3；DC24V is exported between binding post 4 and 5；When binding post 6 and 7 is that timer is external
Auxiliary contact.Rechargeable battery uses 12V20AH rechargeable lithium batteries, is charged by external charger AC220V/DC15 V.Charging
Battery is instrument working power, and 220V50Hz AC powers are transformed to by inverter, and 7V is converted to using control transformer,
14V,28V。
1. instrument power supply part：Wherein 7V output by rectifier bridge rectification, voltage stabilizing to 5V, respectively to AC10V voltmeters,
AC5A ammeters, DC24V voltmeters, digital timer provide working power.
2. alternating voltage output par, c：14V voltages adjust module M1 pressure regulation by the alternating voltage of AC14V.W1 is AC 0-
1000 mV adjust potentiometer, can accurately export mV grades of voltage；W2 is that AC1-10 V adjust potentiometer, exportable to be accurate to
The voltage of 0.01V, voltmeter V1 can accurately show the alternating voltage exported after adjustment.
3. alternating current output par, c：14V voltages adjust electric current by the alternating current adjustment module M2 of AC5A.W3 is AC
0-1000mA adjusts potentiometer, can accurately export mA grades of electric current；W4 is that AC 1-5 A adjust potentiometer, exportable to be accurate to
The electric current of 0.01A, ammeter A can accurately show the alternating current exported after adjustment.
4. direct voltage output part.28V voltages adjust module M3 pressure regulation by the DC voltage of DC24V.W5 is DC 0-
24V adjusts potentiometer, the exportable voltage for being accurate to 0.01V, and voltmeter V2 can accurately show the DC voltage exported after adjustment.
5. time test unit.Including in digital timer T and timer switch K4, clearing reset switch K7, timer
Vacant normal opened contact K6 in external change-over switch K5, power distribution equipment.Change-over switch K5 normal opened contacts and distribution are connect inside and outside timer
When vacant normal opened contact K6 phases concatenate in device, this element can be used for detecting power distribution equipment and be answered to protector the input phase in this instrument
After test signal, the defencive function actuation time of power distribution equipment.
AN1-2, AN2-2, AN3-2 are respectively used to alternating voltage output triggering contact, alternating current output triggers contact, straight
It flows voltage output and triggers contact.The triggering timing of timer respectively by the opened points junction closure such as AN1-2, AN2-2, AN3-2 when
Triggering timing, the above normal opened contact stop timing when opening.AN1-1 and AN1-2 is chain control contact, and AN2-1, AN2-2 are
Chain control contact, AN3-1, AN3-2 are chain control contact.
Change-over switch K5 is met inside and outside timer and is in inscribed state, and K5 is connected downwards, by taking AN1-1, AN1-2 as an example：It presses
Lower button AN1, contact A N1-1, AN1-2 are closed, and AN1-1 closures can adjust output AC voltage, and AN1-2 is closed triggering meter
When device start timing；Button AN1 is raised, contact A N1-1, AN1-2 is opened, and alternating voltage stops output, and timer stops meter
When.
When meeting change-over switch K5 inside and outside timer and being in external state, K5 is connected up, by taking AN1-1, AN1-2 as an example：
By lower button AN1, contact A N1-1, AN1-2 is closed（Because power distribution equipment is to be in combined floodgate power transmission state when test, match Denso
Interior vacant normal opened contact K6 is set in closed state）, AN1-1, which is closed, can adjust output AC voltage, and AN1-2, which is closed, to be touched
Hair timer start timing, due to this instrument by binding post to power distribution equipment input test signal, by after a certain period of time, matching
The defencive function of electric installation acts, power distribution equipment tripping power-off, and vacant normal opened contact K6 is disconnected in power distribution equipment, and timer stops
Only timing.
Claims (4)
1. a kind of power distribution equipment protector multifunctional tester, it is characterised in that：
Including：Rechargeable battery and inversion unit（4）, output unit（5）, time test unit（6）, rechargeable battery and inversion unit
（4）In rechargeable battery connect with DC power supply inverter, rechargeable battery carry external charger interface；
Output unit includes：Control transformer（3）, instrument power module, alternating voltage module, alternating current module, direct current
Die block, control transformer output end respectively with instrument power module, alternating voltage module, alternating current module, DC voltage
Module connects；
Instrument power module includes the rectifier bridge for being parallel with capacitance, voltmeter, ammeter, digital timer, and above each instrument is equal
Respective switch is concatenated, it is then in parallel with the output end of rectifier bridge；
Alternating voltage module includes alternating voltage adjustment module, two adjustment potentiometers, and alternating voltage adjusts module and adjustment electricity
Position device concatenation, alternating voltage adjustment module output end simultaneously connect voltmeter；
Alternating current module includes alternating current adjustment module, two adjustment potentiometers, and alternating current adjusts module and adjustment electricity
Position device concatenation, alternating current adjust module output end and concatenate ammeter；
DC voltage module includes the rectifier bridge for being parallel with capacitance, DC voltage adjustment module, adjustment potentiometer, DC voltage tune
Mould preparation block concatenate with adjustment potentiometer, then with rectifier bridge and connect, DC voltage adjusts module output end and is simultaneously connected to voltmeter；
Ac voltage output, alternating current output end, DC voltage output end are serially connected with button AN1-1, button AN2- respectively
1, then button AN3-1 is connect with binding post 1, binding post 2, binding post 4；
After the block contact of above-mentioned button is concatenated with the vacant normally opened contact K6 in power distribution equipment inside, the triggering of digital timer is accessed
Interface.
2. power distribution equipment protector multifunctional tester according to claim 1, it is characterised in that：Rechargeable battery uses
The rechargeable lithium battery of 12V 20AH, rechargeable battery are connect by fuse with DC power supply inverter.
3. power distribution equipment protector multifunctional tester according to claim 1, it is characterised in that：Control transformer（3）
With tri- kinds of output ends of 7V, 14V, 28V.
4. power distribution equipment protector multifunctional tester according to claim 1, it is characterised in that：Alternating voltage adjusts mould
Block, alternating current adjustment module are all made of AC voltage regulator, and DC voltage adjusts module and uses direct current stabilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721914674.8U CN207689594U (en) | 2017-12-31 | 2017-12-31 | Power distribution equipment protector multifunctional tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721914674.8U CN207689594U (en) | 2017-12-31 | 2017-12-31 | Power distribution equipment protector multifunctional tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207689594U true CN207689594U (en) | 2018-08-03 |
Family
ID=62994053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721914674.8U Active CN207689594U (en) | 2017-12-31 | 2017-12-31 | Power distribution equipment protector multifunctional tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207689594U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109191815A (en) * | 2018-08-16 | 2019-01-11 | 国网内蒙古东部电力有限公司电力科学研究院 | A kind of wireless auxiliary contact transfer device and method |
| CN110118893A (en) * | 2019-05-30 | 2019-08-13 | 山东公信安全科技有限公司 | A kind of high-voltage fence unbalanced earth fault capacitance current test device |
-
2017
- 2017-12-31 CN CN201721914674.8U patent/CN207689594U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109191815A (en) * | 2018-08-16 | 2019-01-11 | 国网内蒙古东部电力有限公司电力科学研究院 | A kind of wireless auxiliary contact transfer device and method |
| CN110118893A (en) * | 2019-05-30 | 2019-08-13 | 山东公信安全科技有限公司 | A kind of high-voltage fence unbalanced earth fault capacitance current test device |
| CN110118893B (en) * | 2019-05-30 | 2024-03-29 | 中检集团公信安全科技有限公司 | Single-phase grounding capacitance current testing device for high-voltage power grid |
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