CN202275102U - Voltage withstand transfer device - Google Patents
Voltage withstand transfer device Download PDFInfo
- Publication number
- CN202275102U CN202275102U CN2011204260103U CN201120426010U CN202275102U CN 202275102 U CN202275102 U CN 202275102U CN 2011204260103 U CN2011204260103 U CN 2011204260103U CN 201120426010 U CN201120426010 U CN 201120426010U CN 202275102 U CN202275102 U CN 202275102U
- Authority
- CN
- China
- Prior art keywords
- voltage withstand
- electric energy
- energy meter
- transfer
- terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 239000004606 Fillers/Extenders Substances 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000002955 isolation Methods 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Abstract
The utility model aims at providing a voltage withstand transfer device, wherein a terminal of the output end can be used as a high-voltage end and can also be used as a grounding end, the voltage withstand transfer device is applicable to various different occasions, and the additional addition of external equipment is not needed. In order to reach the goal, the voltage withstand transfer device adopts the technical scheme that a transfer board of the voltage withstand transfer device is arranged on a printed circuit board (PCB) arranged inside an electric energy meter, the transfer board comprises an electronic relay with a protection device, one end of the transfer board is connected with control signals on the PCB, the other end of the transfer board is connected with an auxiliary wiring terminal, and the middle of the transfer board realizes the re-isolation through the electronic relay with the protection device. Because of the adoption of the technical scheme, the electronic relay is in additional arrangement on the transfer board, the work state of the terminal is automatically responded under different conditions, the work effect of the electric energy meter in different environments is ensured, the work stability is improved, the application range is expanded, and particularly, different technical requirements of GB/T 17215.211-2006 alternating current voltage withstand can be met.
Description
Technical field
The utility model relates to electric energy meter device, relates in particular to the inner withstand voltage switching device of electric energy meter.
Background technology
National grid requires electric energy meter should be able to bear the AC voltage withstand test of regulation, and should satisfy the requirement among the GB/T17215.211-2006.Popular says, be exactly at electric energy meter in when test, trial voltage is answered the near sinusoidal ripple, frequency applies 1min between 45Hz and 65Hz.Power supply capacity should be 500VA at least.In the test flashover, spark discharge and punch-through should not take place.
In the voltage-to-ground test, reference voltage is equal to or less than the auxiliary line of 40V and answers ground connection.
All tests all should make an experiment loading onto under watchcase and the terminal cap situation.
Alternating voltage test should according under carry out.
Electric energy meter belongs to II class protection instrument, trial voltage 4kV, and the trial voltage application point is following: all current circuits and voltage circuit and reference voltage link together above the auxiliary line of 40v and are a bit; On the other hand; Trial voltage puts on this point-to-point transmission, and as requested, the ammeter connection terminal is the auxiliary connection terminal 5-12 number; Wherein No. 7 to No. 12 terminals all are the light current terminal that is lower than 40V, want ground connection in the experiment.But No. 5 is relay control output end with No. 6 terminals; It is passive terminal; According to different use-patterns, it is uncertain to insert voltage, will produce a problem like this during actual the use: insert high-pressure side on earth with No. 6 terminals and still insert ground for No. 5? Can't confirm! But must satisfy AC voltage withstand test, promptly 5, No. 6 terminals can be simultaneously not only with 7 to No. 12 terminals, and will to bear 4KV withstand voltage with current circuit and voltage circuit, accomplish dual isolation.But energy meter terminal of the prior art does not have to reach the structure of such requirement.
The utility model content
The purpose of the utility model provides withstand voltage switching device, and wherein the terminal of output terminal both can be used as the high-pressure side use, also can be used as earth terminal and uses, and is applicable to various occasion, and does not need extra interpolation external equipment.
In order to reach said purpose; The technical scheme that the utility model adopted is withstand voltage switching device; Card extender is installed on the inner pcb board of electric energy meter, and card extender comprises the electronic relay of being with protective device, control signal on the said card extender one end connection PCB plate; Relay control output end in the other end connection PCB plate auxiliary connection terminal is realized isolating through the electronic relay of band protective device again.
Preferably, said card extender is processed one separately, is installed in the inner pcb board of electric energy meter below.Such configuration saves the space on the inner pcb board of electric energy meter, reduce the electric energy meter volume, also guarantee that this part can not brought influence to other structures simultaneously.
Owing to adopted said technical scheme; The withstand voltage switching device of the utility model is through the electronic relay of the extra setting on the card extender; Under different occasions, automatically the duty of terminal is reacted, guaranteed the work of electric energy meter under varying environment; Improved the job stability and the scope of application, particularly GB/T 17215.211-2006 ac voltage withstanding different techniques has been required and can both satisfy.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is the whole place of the withstand voltage switching device of a utility model electric energy meter front schematic view.
Fig. 2 is the withstand voltage switching device of a utility model place pcb board schematic rear view.
Embodiment
As depicted in figs. 1 and 2; Withstand voltage switching device; Be installed in the electric energy meter 3 inner pcb boards 1, comprise card extender 2, said card extender 2 comprises the electronic relay 5 of being with protective device 4; Said card extender 2 one ends connect the control end in the electric energy meter 3 inner pcb boards 1, relay control output end 6 in the other end connection PCB plate auxiliary connection terminal.Said card extender 2 is processed one separately, is installed in electric energy meter 3 inner pcb boards 1 below.
During work, adopt electric energy meter 3 relay control output ends 6 of the utility model structure, promptly 5; The terminal of No. 6 positions can be simultaneously not only with 7 to No. 12 terminals, and with current circuit and voltage circuit can both to bear 4KV withstand voltage, can do high-pressure side; Also can be used as earth terminal; Applied widely, can not damage, realized dual isolation.
The above is merely the specific embodiment of the utility model; But the architectural feature of the utility model is not limited thereto; Any those skilled in the art is in the field of the utility model, and variation of being done or modification all are encompassed among the claim of the utility model.
Claims (2)
1. withstand voltage switching device; Be installed in the inner pcb board of electric energy meter (3) (1); It is characterized in that: comprise card extender (2); Said card extender (2) comprises the electronic relay (5) of band protective device (4), and said card extender (2) one ends connect the control end in the inner pcb board of electric energy meter (3) (1), relay control output end (6) in other end connection PCB plate (1) the auxiliary connection terminal.
2. withstand voltage switching device as claimed in claim 1 is characterized in that: said card extender (2) is processed one separately, is installed in the inner pcb board of electric energy meter (3) (1) below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204260103U CN202275102U (en) | 2011-11-01 | 2011-11-01 | Voltage withstand transfer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204260103U CN202275102U (en) | 2011-11-01 | 2011-11-01 | Voltage withstand transfer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202275102U true CN202275102U (en) | 2012-06-13 |
Family
ID=46195450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204260103U Expired - Lifetime CN202275102U (en) | 2011-11-01 | 2011-11-01 | Voltage withstand transfer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202275102U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108811378A (en) * | 2018-06-30 | 2018-11-13 | 宁波三星医疗电气股份有限公司 | A kind of novel electric power terminal |
-
2011
- 2011-11-01 CN CN2011204260103U patent/CN202275102U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108811378A (en) * | 2018-06-30 | 2018-11-13 | 宁波三星医疗电气股份有限公司 | A kind of novel electric power terminal |
| CN108811378B (en) * | 2018-06-30 | 2023-08-01 | 宁波三星医疗电气股份有限公司 | Novel power terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120613 |