CN205941751U - Earthleakage protective equipment transships testing arrangement - Google Patents
Earthleakage protective equipment transships testing arrangement Download PDFInfo
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- CN205941751U CN205941751U CN201620999820.0U CN201620999820U CN205941751U CN 205941751 U CN205941751 U CN 205941751U CN 201620999820 U CN201620999820 U CN 201620999820U CN 205941751 U CN205941751 U CN 205941751U
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- relay
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- control circuit
- overload
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Abstract
The utility model discloses an earthleakage protective equipment transships testing arrangement, the test power -on time that transships is short, adopts the transformer that high -power load bearing capability is strong, provide 120V 90 the cost is saved in 120A's output, it surveys the unloaded debugging facility of product with the examination to have the self -checking, have test data statistical analysis function and test failure alarming function, the electric wiring is simple, maintains that the maintenance is convenient, the cost is low, and testing expenses are low.
Description
[technical field]
The utility model is related to a kind of earth leakage protective device overload measurement device.
[background technology]
At present, production firm's great majority adopt detection earth leakage protective device PRCD with the following method：1. outgoing certification verification test
Mechanism tests, but it is long to there is test period, and testing expense is high, not easy-to-search analysis test crash fault；2. outsourcing device manufacturer
, there is cost of equipment height, poor for applicability, maintenance is difficult in test machine.
On the other hand, it is currently used in earth leakage protective device overload detector it is impossible to carry out self-inspection, detection error is to be difficult to
Find out erroneous point, simultaneously existing overload detector, overload time is long, be easily damaged examination and survey product, cause detection data not
Accurately.
[utility model content]
The utility model overcomes the deficiency of above-mentioned technology, there is provided a kind of Intelligent electric leakage protection dress with self-checking function
Put overload measurement device.
For achieving the above object, the utility model employs following technical proposal：
A kind of earth leakage protective device overload measurement device, includes shell 1, is provided with control circuit 2, institute in described shell 1
State control circuit 2 to be connected with switching power circuit 3, the touch screen circuitry 4 being used for inputting control signal, warning circuit 5, be used for examining
Observe and predict the warning circuit testing circuit 6 of alert circuit working state and switching power circuit 3 is connected to prevent examination from surveying product overload
Damage protective tube circuit 7, for drive drift pressing examination survey product on power switch cylinder crawl drive circuit 8, be used for
Detect the counting circuit 9 of overload measurement number of times and survey overload electricity when the disconnection of product power switch shields for detection examination
The overload detection circuit 10 of flow valuve performance number.
Described control circuit 2 is connected with clock circuit 11 and display circuit 12 for detecting overload time.
Described control circuit 2 is connected with storage circuit 13.
Described control circuit 2 is connected with radiating circuit 14.
Described protective tube circuit 7 includes relay KA3 and fuse A1, described fuse A1 one end respectively with relay
It is normally opened with the dynamic contravention of second controlling switch KA3-2 of relay KA3 that first controlling switch KA3-1 of KA3 moves the normally closed connection of contravention
Connect, the first controlling switch KA3-1 stationary contact end of described relay KA3 is connected with control circuit 2, the of described relay KA3
Two controlling switch KA3-2 stationary contact ends are surveyed product with examination and are connected, the 3rd control with relay KA3 respectively of the described fuse A1 other end
System switch KA3-3 stationary contact end connects, and is connected with the 4th controlling switch KA3-4 stationary contact end of relay KA3, described relay KA3
The 3rd controlling switch KA3-3 move contravention and the normally opened connection of switching power circuit 3, the 4th controlling switch of described relay KA3
KA3-4 moves contravention and the normally closed connection of control circuit 2, and described relay KA3 mono- power input is connected with control circuit 2, described
Another power input of relay KA3 is connected with switching power circuit 3.
Described overload detection circuit 10 includes sample of signal plate, solid-state relay B2, solid-state relay B3, described solid-state
Relay B2 control signal is connected with control circuit 2, and described solid-state relay B2 controls output to be connected with relay KM2, institute
State relay KM2 controlling switch KM2-1 to be arranged between sample of signal plate and examination survey product, described solid-state relay B3 controls defeated
Enter end to be connected with control circuit 2, described solid-state relay B3 controls output to be connected with relay KM3, and described relay KM3 controls
Switch KM3-1 is arranged at ground wire and examination is surveyed between product, and described sample of signal partitioned signal output end is respectively with control circuit 2 even
Connect, described sample of signal plate power end is connected with switching power circuit 3 by isolating transformer T1, described sample of signal plate sampling
End is connected with controlling switch KA1-1 one end of relay KA1, controlling switch KA2-1 one end of relay KA2 respectively, described continues
The controlling switch KA1-1 other end of electrical equipment KA1 is connected with relay KM2 controlling switch KM2-1, the control of described relay KA2
The switch KA2-1 other end is connected with relay KM3 controlling switch KM3-1.
The beneficial effects of the utility model are：
The utility model overload measurement conduction time is short, using the strong transformer of high-power load capacity, provides 120V
The output of 90-120A, cost-effective；There is self-inspection and survey product zero load debugging function with examination；There is test data statistical analysis work(
Can be with test crash warning function, electric wiring is simple, and maintaining is convenient；Cost is low, and testing expense is low.
[brief description]
Fig. 1 is structural representation of the present utility model；
Fig. 2 is one of the utility model circuit diagram；
Fig. 3 is the two of the utility model circuit diagram；
Fig. 4 is the three of the utility model circuit diagram.
[specific embodiment]
It is described in further detail with embodiment of the present utility model below in conjunction with the accompanying drawings：
As shown in figure 1, a kind of earth leakage protective device overload measurement device, include shell 1, in described shell 1, be provided with control
Circuit 2 processed, described control circuit 2 is connected with switching power circuit 3, for inputting the touch screen circuitry 4 of control signal, electricity of reporting to the police
Road 5, for detecting the warning circuit testing circuit 6 of warning circuit working condition and switching power circuit 3 is connected to prevent from trying
Survey the product overload protective tube circuit 7 damaging, the cylinder crawl being used for driving drift pressing examination to survey power switch on product drives
Circuit 8, for detect overload measurement number of times counting circuit 9 and for detection examination survey product power switch has disconnected protect work
The overload detection circuit 10 of used time overload current value performance number.
During work, activate switch power circuit 3, " overload measurement turn-on time ", " overload are arranged by touch screen circuitry 4
Test turn-off time ", " overload measurement cycle time ", " testing time ", " guard time ", " electric current permission minimum of a value ", " electric current
The data such as permission maximum ", then detection signal is exported by touch screen circuitry 4, control circuit 2 controls overload detection circuit 10 to examine
The overload current value and performance number when the disconnection of product power switch shields is surveyed in test, obtains the overload number tested for the first time
According to rear, on control circuit 2 control cylinder crawl drive circuit 8 driving drift pressing examination survey product power switch, then make examination survey
Product is energized, and control circuit 2 controls overload detection circuit 10 detection examination to survey overload current value and the work(of second test of product again
Rate value, till reaching testing time.
User can also input control signal to warning circuit 5, protective tube circuit 7 to cylinder crawl by touch screen circuitry 4
Drive circuit 8 is detected.
Wherein, described control circuit 2 be connected with for detect overload time clock circuit 11, display circuit 12, storage
Circuit 13 and radiating circuit 14.
As shown in Figure 2, Figure 3 and Figure 4, described protective tube circuit 7 includes relay KA3 and fuse A1, described insurance
Silk A1 one end moves the normally closed connection of contravention and second control of relay KA3 respectively with first controlling switch KA3-1 of relay KA3
System switch KA3-2 moves the normally opened connection of contravention, and the first controlling switch KA3-1 stationary contact end of described relay KA3 is with control circuit 2 even
Connect, the second controlling switch KA3-2 stationary contact end of described relay KA3 is surveyed product with examination and is connected, and the described fuse A1 other end divides
It is not connected with the 3rd controlling switch KA3-3 stationary contact end of relay KA3, the 4th controlling switch KA3-4 stationary contact with relay KA3
End connects, and the 3rd controlling switch KA3-3 of described relay KA3 moves contravention and the normally opened connection of switching power circuit 3, described relay
4th controlling switch KA3-4 of device KA3 moves contravention and the normally closed connection of control circuit 2, described relay KA3 mono- power input with
Control circuit 2 connects, and another power input of described relay KA3 is connected with switching power circuit 3.
Described overload detection circuit 10 includes sample of signal plate, solid-state relay B1, solid-state relay B2, solid-state relay
Device B3, described solid-state relay B1 control signal is connected with control circuit 2, and described solid-state relay B1 controls output to be connected with
Relay KM1, described relay KM1 controlling switch KM1-1 is arranged at switching power circuit 3 and examination is surveyed between product, described solid
State relay B2 control signal is connected with control circuit 2, and described solid-state relay B2 controls output to be connected with relay KM2,
Described relay KM2 controlling switch KM2-1 is arranged at sample of signal plate and examination is surveyed between product, and described solid-state relay B3 controls
Input is connected with control circuit 2, and described solid-state relay B3 controls output to be connected with relay KM3, described relay KM3 control
System switch KM3-1 is arranged at ground wire and examination is surveyed between product, and described sample of signal partitioned signal output end is respectively with control circuit 2 even
Connect, described sample of signal plate power end is connected with switching power circuit 3 by isolating transformer T1, described sample of signal plate sampling
End is connected with controlling switch KA1-1 one end of relay KA1, controlling switch KA2-1 one end of relay KA2 respectively, described continues
The controlling switch KA1-1 other end of electrical equipment KA1 is connected with relay KM2 controlling switch KM2-1, the control of described relay KA2
The switch KA2-1 other end is connected with relay KM3 controlling switch KM3-1.
Circuit operation principle is as follows：
Switch on power on-off circuit 3, and power supply supplies electricity to overload measurement device, circuit start processed.
Overload measurement：Setting interface is entered by the main interface " testing results parameter setting " in touch screen circuitry 4, completes
" overload measurement turn-on time ", " overload measurement turn-off time ", " overload measurement cycle time ", " testing time ", " during protection
Between ", " electric current permission minimum of a value ", " electric current permission maximum " be stored in main memory circuit 13；
Main interface " main contactor switch " in point touching screen circuit 4, control circuit 2 is passed through pin Y3 output control and is believed
Number, the controller switches KM1-1 closure of relay KM1, tested product is energized；
In point touching screen circuit 4, main interface " verification " carries out verifying interface, clicks on " buzzer test ", control circuit 2
Produce alarm signal, control circuit 2 is exported by pin Y11, warning circuit 5 produces chimes of doom, warning circuit testing circuit 6 is examined
Survey warning circuit 5, whether normal to judge warning circuit 5；Click on " protective tube test ", control circuit 2 is exported by pin X7
Whether signal check protective tube A1 is normal；Click on " reset cylinder crawl " control circuit 2 and pass through pin Y6 output point moving pulse letter
Breath, drive magnetic valve, make cylinder crawl drive circuit 8 reset drift produce homing action；Click on " test cylinder crawl " to control
Circuit 2 passes through pin Y6 output point moving pulse information, drive magnetic valve, tests drift by cylinder crawl drive circuit 8 and produces
Homing action；Click on " overload measurement contactor ", control circuit 2 passes through pin Y4 control relay KA2 output control signal, makes
So that the conducting of relay KM2 controlling switch KM2-1, PF table and ammeter show specifically actual electricity for relay KM2 work
Flow valuve and power factor (PF), simultaneously ammeter current value is fed back to control circuit 2, be shown in verification interface current value hurdle；Click on
" overload measurement action verification " control circuit 2 is according to the parameter above arranging such as 1S ON, 9S OFF 20 times, electric by controlling
Road 2 pin Y6 output driving magnetic valve, makes reset drift and test drift so that according to the parameter reset setting, the tested survey of test is produced
Product, whether control circuit 2 calls the parameter of setting, normal to judge " overload measurement action verification ".
Click on main interface " overload measurement " control circuit 2 and KM2 is connected by pin Y5 output signal, click on " startup ", control
Circuit 2 processed, according to front setup parameter such as 1S ON, 9S OFF 20 times, carries out overload measurement, and the result of overload leads to " sample of signal
Plate " samples, and delivers in control circuit 2, according to presetting, judges to test whether normal, such as abnormal then interrupt test, sends
Alarm signal, such as just resident then continuation test is gone down, and until test completes, test result is shown in overload measurement data interface.
Low resistance earthing fault test：
Similar in appearance to overload measurement, difference is that " overload measurement " is to turn on KM2, and " low resistance earthing fault test "
It is to turn on KM3.
Claims (6)
1. a kind of earth leakage protective device overload measurement device it is characterised in that：Include shell (1), be provided with described shell (1)
Control circuit (2), described control circuit (2) is connected with switching power circuit (3), the touch screen circuitry for inputting control signal
(4), warning circuit (5), warning circuit testing circuit (6) and switching power circuit for detecting warning circuit working condition
(3) it is connected to prevent the protective tube circuit (7) trying survey product overload damage, be used for driving power supply on drift pressing examination survey product
Switch cylinder crawl drive circuit (8), for detect overload measurement number of times counting circuit (9) and for detection examination survey produce
Product power switch disconnects the overload detection circuit (10) of overload current value performance number when shielding.
2. a kind of earth leakage protective device overload measurement device according to claim 1 it is characterised in that：Described control circuit
(2) it is connected with clock circuit (11) and the display circuit (12) for detecting overload time.
3. a kind of earth leakage protective device overload measurement device according to claim 1 it is characterised in that：Described control circuit
(2) it is connected with storage circuit (13).
4. a kind of earth leakage protective device overload measurement device according to claim 1 it is characterised in that：Described control circuit
(2) it is connected with radiating circuit (14).
5. a kind of earth leakage protective device overload measurement device according to claim 1 it is characterised in that：Described protective tube electricity
Road (7) includes relay KA3 and fuse A1, described fuse A1 one end the first controlling switch with relay KA3 respectively
KA3-1 moves the normally closed connection of contravention and second controlling switch KA3-2 of relay KA3 moves the normally opened connection of contravention, described relay
The first controlling switch KA3-1 stationary contact end of KA3 is connected with control circuit (2), second controlling switch KA3- of described relay KA3
2 stationary contact ends are surveyed product with examination and are connected, and the described fuse A1 other end is quiet with the 3rd controlling switch KA3-3 of relay KA3 respectively
Contravention connects, and is connected with the 4th controlling switch KA3-4 stationary contact end of relay KA3, the 3rd controlling switch of described relay KA3
KA3-3 moves contravention and the normally opened connection of switching power circuit (3), the 4th controlling switch KA3-4 of described relay KA3 move contravention with
The normally closed connection of control circuit (2), described relay KA3 mono- power input is connected with control circuit (2), described relay KA3
Another power input is connected with switching power circuit (3).
6. a kind of earth leakage protective device overload measurement device according to claim 1 it is characterised in that：Described overload detection
Circuit (10) includes sample of signal plate, solid-state relay B2, solid-state relay B3, described solid-state relay B2 control signal
It is connected with control circuit (2), described solid-state relay B2 controls output to be connected with relay KM2, and described relay KM2 control is opened
Close that KM2-1 is arranged at sample of signal plate and examination is surveyed between product, described solid-state relay B3 control signal and control circuit (2)
Connect, described solid-state relay B3 controls output to be connected with relay KM3, and described relay KM3 controlling switch KM3-1 is arranged at
Ground wire and examination are surveyed between product, and described sample of signal partitioned signal output end is connected with control circuit (2) respectively, described sample of signal
Plate power end is connected with switching power circuit (3) by isolating transformer T1, described sample of signal plate sampling end respectively with relay
Controlling switch KA1-1 one end of device KA1, controlling switch KA2-1 one end of relay KA2 connect, the control of described relay KA1
The switch KA1-1 other end is connected with relay KM2 controlling switch KM2-1, and controlling switch KA2-1 of described relay KA2 is another
End is connected with relay KM3 controlling switch KM3-1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620999820.0U CN205941751U (en) | 2016-08-30 | 2016-08-30 | Earthleakage protective equipment transships testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620999820.0U CN205941751U (en) | 2016-08-30 | 2016-08-30 | Earthleakage protective equipment transships testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205941751U true CN205941751U (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620999820.0U Active CN205941751U (en) | 2016-08-30 | 2016-08-30 | Earthleakage protective equipment transships testing arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597140A (en) * | 2016-08-30 | 2017-04-26 | 中山市开普电器有限公司 | Earth leakage protection device overload testing device |
-
2016
- 2016-08-30 CN CN201620999820.0U patent/CN205941751U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106597140A (en) * | 2016-08-30 | 2017-04-26 | 中山市开普电器有限公司 | Earth leakage protection device overload testing device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |