CN202975236U - Direct current method transformer polarity detector - Google Patents
Direct current method transformer polarity detector Download PDFInfo
- Publication number
- CN202975236U CN202975236U CN 201220724102 CN201220724102U CN202975236U CN 202975236 U CN202975236 U CN 202975236U CN 201220724102 CN201220724102 CN 201220724102 CN 201220724102 U CN201220724102 U CN 201220724102U CN 202975236 U CN202975236 U CN 202975236U
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- CN
- China
- Prior art keywords
- mutual inductor
- electric battery
- battery
- detecting device
- reometer
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- 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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Abstract
The utility model relates to a direct current method transformer polarity detector which is provided with a current meter, battery groups, a switching switch and a wiring terminal which is connected with a transformer. The wiring terminal which is connected with the transformer comprises two primary wiring terminals which are connected with a primary winding of the transformer and two secondary wiring terminals which are connected with a secondary winding of the transformer. A number of battery groups are arranged. The positive poles of a number of battery groups are respectively connected with each switching contact of the switching switch. The negative poles of a number of battery groups are connected in parallel, and then and the other end of the switching switch are respectively connected with the two primary wiring terminals. Two wiring terminals of the current meter are respectively connected with the two secondary wiring terminals. According to the utility model, the problems that when testing is carried out, the pointer of the current meter does not swing or does not obviously swing due to low power supply voltage and large product impedance and the pointer of a galvanometer is broken due to high power supply voltage and small impedance are solved; the operation of only one person is needed, and the cooperation of other person is not needed; and the direct current method transformer polarity detector is simple and easy.
Description
Technical field
The utility model relates to a kind of mutual inductor detection technique, specifically a kind of DC-method mutual inductor polarity detecting device.
Background technology
It is the test item that every mutual inductor device body assembling procedure and finished product assembly process must carry out that polarity detects, and also often uses when product inspection and other operation need to be verified.Original method two kind, the one Comparison Method needs a large amount of expensive instruments; Its two DC-method needs two people's cooperations to carry out, and wherein a hand-held battery of people is at winding of mutual inductor top overlap joint, and the hand-held direct current multimeter of another people connects the mutual inductor Secondary Winding, echoes up and down operation.Have the back-emf characteristic during due to product operation, up and down two people slightly are related and accidentally can cause erroneous judgement.On different product, only select a kind of power supply, the product reaction that can have is insensitive, pointer does not see whether rotating, some products can produce very high voltage again, jeopardize experimenter's safety, the multimeter switch also can often occur and forget and close or one-shot battery connects wire and connects for a long time, cause battery damage and corrosion instrument problem.
The utility model content
Detect for the polarity of mutual inductor in prior art and jeopardize experimenter's safety or cause the battery damage and the weak point such as corrosion instrument, the technical problems to be solved in the utility model is to provide a kind of and needs one man operation, simple DC-method mutual inductor polarity detecting device.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of DC-method mutual inductor polarity of the utility model detecting device, the binding post that has reometer, electric battery, change-over switch and be connected with mutual inductor, wherein, the binding post that is connected with mutual inductor comprises two primary connection posts that are connected with winding of mutual inductor and two secondary connection posts that are connected with the mutual inductor Secondary Winding; Electric battery is many groups, and the positive pole of many Battery packs group is connected to respectively in each two-way contact of change-over switch, and the other end with change-over switch after the negative pole parallel connection of many Battery packs group is connected to respectively on two primary connection posts; Two connection terminals of reometer are connected with two secondary connection posts respectively.
The utility model also has a dynamic formula and often drives button, is series in the electric battery loop.
Described reometer is two-way milliampere of reometer.
Described electric battery is two groups, is respectively the first electric battery and the second electric battery, and wherein the output voltage of the first electric battery is 3 volts, adopts the form of 1.5 volts of batteries 2 and 2 strings; The output voltage of the second electric battery is 9 volts, adopts Voltaic battery 2 form also.
Described electric battery is respectively the form that electric pressure is constant, improve many and many strings of output capacity.
This mutual inductor polarity detecting device integral body is located in instrument box, and the gauge outfit of reometer, change-over switch and/or some dynamic formula are often driven button and be located on the panel of instrument box; Four binding posts are located at the outside of instrument box.
The utlity model has following beneficial effect and advantage:
1. the utility model arranges 2 different voltage sources, selected by change-over switch, occur because supply voltage is low when having solved the large test of the product impedance that has that ammeter pointer does not swing or not obvious and when impedance is too small supply voltage showed again the problem that senior general's galvanometer pointer breaks;
2. the utility model utilizes a some dynamic formula that is connected in cell circuit often to drive button, only needs one man operation, need not other staff and coordinates;
3. because being used in a dynamic formula, the utility model often drives button, needn't worry in the past that the operating personnel that often occur forget after using to overlap when closing multimeter switch and a wire deposits makes discharge for a long time problem of corrosion and damage instrument of battery, simple.
4. all parts of the present utility model comprise that connecting wire all is arranged in an instrument box, are convenient for carrying, and need not use a large amount of expensive instruments, and are cheap.
Description of drawings
Fig. 1 is the utility model DC-method mutual inductor polarity detector arrangement schematic diagram.
Wherein, P1 is the first primary connection post, and P2 is the second primary connection post, and S1 the first secondary connection post, S2 are the second secondary connection post; E1 is the first electric battery; E2 is the second electric battery; K1 is change-over switch; K2 often drives button for a dynamic formula; PT is tested voltage transformer (VT); A, N are respectively the rising an of winding of tested voltage transformer (VT), end; A, n are respectively the rising of tested secondary windings of PT, end; Da, dn are respectively the rising of tested voltage transformer (VT) residue winding, end.
Embodiment
The present invention is further elaborated below in conjunction with Figure of description.
As shown in Figure 1, the utility model DC-method mutual inductor polarity detecting device, the binding post that has reometer, electric battery, change-over switch and be connected with mutual inductor, wherein, the binding post that is connected with mutual inductor comprises that two primary connection posts that are connected with winding of mutual inductor are that first and second primary connection post P1, P2 are first and second secondary connection post S1, S2 with two secondary connection posts that are connected with the mutual inductor Secondary Winding; Electric battery is many groups, and the positive pole of many Battery packs group is connected to respectively in each two-way contact of change-over switch, and the other end with change-over switch after the negative pole parallel connection of many Battery packs group is connected to respectively on two primary connection posts.
In this implementation column, electric battery is two groups, i.e. the first electric battery E1 and the second electric battery E2; Change-over switch K1 adopts two-way change-over switch.The positive pole of the first electric battery E1 and the second electric battery E2 is connected to respectively in two two-way contacts of two-way change-over switch, be connected with the second primary connection post P2 after the negative pole parallel connection of the first electric battery E1 and the second electric battery E2, the other end of two-way change-over switch is connected with the first primary connection post P1; Two connection terminals of reometer are connected with first and second secondary connection post S1, S2 respectively.
The utility model also is provided with a some dynamic formula and often opens button K2, is series in the electric battery loop, namely is connected between the negative pole sys node and the second primary connection post P2 of two Battery pack groups.Can worry so in the past that the operating personnel that often occur forget after using to overlap when closing multimeter switch and a wire deposits makes discharge for a long time problem of corrosion and damage instrument of battery.
Described reometer is two-way milliampere of reometer.
In the present embodiment, two Battery pack groups are respectively the first electric battery E1 and the second electric battery E2, and wherein the output voltage of the first electric battery E1 is 3 volts, adopt the form of 1.5 volts of batteries 2 and 2 strings; The output voltage of the second electric battery E1 is 9 volts, adopts Voltaic battery 2 form also.For special mutual inductor, electric battery can be respectively the form that electric pressure is constant, improve many and many strings of output capacity.
This mutual inductor polarity detecting device integral body is located in an instrument box, and four binding posts, the gauge outfit of reometer, two-way change-over switches and/or some dynamic formulas are often driven button and are located at above the panel of instrument box outsidely, and two Battery pack groups are arranged on instrument box inside.
Take by tested mutual inductor as example as voltage transformer (VT), operating process of the present utility model is as follows:
First two Battery pack groups are fixed on as requested bottom in instrument box;
Select the first electric battery E1 or the second electric battery E2 for the mutual inductor product again;
The first primary connection post P1 is connected with wire and clip with the A terminal of voltage transformer (VT), the second primary connection post P2 is connected with wire and clip with the N terminal of voltage transformer (VT), and A terminal and N terminal are respectively the rising an of winding of voltage transformer (VT), end;
First and second secondary connection post S1, S2 are connected with wire and clip with a, the n terminal of voltage transformer (VT) respectively; A, n terminal are respectively the rising of secondary windings of PT, end;
Press a dynamic formula and often open the pointer edge deflection clockwise of the immediate current table of button K2, prove that the polarity of mutual inductor for negative, meets product requirement, otherwise is mistake;
Observe clear after release button switch immediately, off-test.
If tested mutual inductor is current transformer, the label on four binding posts of the utility model is consistent with the connection terminal label of current transformer, the corresponding line of identical label is got final product, namely the first primary connection post P1 is connected with wire and clip with a winding P1 terminal of current transformer, and the second primary connection post P2 is connected with wire and clip with a winding P2 terminal of current transformer; First and second secondary connection post S1, S2 are connected with wire and clip with Secondary Winding S1, the S2 terminal of current transformer respectively.
Claims (6)
1. DC-method mutual inductor polarity detecting device, it is characterized in that: the binding post that has reometer, electric battery, change-over switch and be connected with mutual inductor, wherein, the binding post that is connected with mutual inductor comprises two primary connection posts that are connected with winding of mutual inductor and two secondary connection posts that are connected with the mutual inductor Secondary Winding; Electric battery is many groups, and the positive pole of many Battery packs group is connected to respectively in each two-way contact of change-over switch, and the other end with change-over switch after the negative pole parallel connection of many Battery packs group is connected to respectively on two primary connection posts; Two connection terminals of reometer are connected with two secondary connection posts respectively.
2. by DC-method mutual inductor polarity detecting device claimed in claim 1, it is characterized in that: also have a dynamic formula and often drive button, be series in the electric battery loop.
3. by DC-method mutual inductor polarity detecting device claimed in claim 1, it is characterized in that: described reometer is two-way milliampere of reometer.
4. by DC-method mutual inductor polarity detecting device claimed in claim 1, it is characterized in that: described electric battery is two groups, is respectively the first electric battery and the second electric battery, and wherein the output voltage of the first electric battery is 3 volts, adopts the form of 1.5 volts of batteries 2 and 2 strings; The output voltage of the second electric battery is 9 volts, adopts Voltaic battery 2 form also.
5. by the described DC-method mutual inductor polarity of claim 1 or 4 detecting device, it is characterized in that: described electric battery is respectively the form that electric pressure is constant, improve many and many strings of output capacity.
6. by the described DC-method mutual inductor polarity of claim 1 or 2 detecting device, it is characterized in that: this mutual inductor polarity detecting device integral body is located in instrument box, and the gauge outfit of reometer, change-over switch and/or some dynamic formula are often driven button and be located on the panel of instrument box; Four binding posts are located at the outside of instrument box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724102 CN202975236U (en) | 2012-12-25 | 2012-12-25 | Direct current method transformer polarity detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220724102 CN202975236U (en) | 2012-12-25 | 2012-12-25 | Direct current method transformer polarity detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202975236U true CN202975236U (en) | 2013-06-05 |
Family
ID=48516294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220724102 Expired - Lifetime CN202975236U (en) | 2012-12-25 | 2012-12-25 | Direct current method transformer polarity detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202975236U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166071A (en) * | 2014-08-07 | 2014-11-26 | 国家电网公司 | Portable electric transformer polarity determining device |
| CN105044547A (en) * | 2015-07-31 | 2015-11-11 | 国网山东沂源县供电公司 | Current transformer polarity tester |
| CN110389280A (en) * | 2019-08-23 | 2019-10-29 | 广东电网有限责任公司 | A kind of current transformer polarity measurement device |
-
2012
- 2012-12-25 CN CN 201220724102 patent/CN202975236U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166071A (en) * | 2014-08-07 | 2014-11-26 | 国家电网公司 | Portable electric transformer polarity determining device |
| CN105044547A (en) * | 2015-07-31 | 2015-11-11 | 国网山东沂源县供电公司 | Current transformer polarity tester |
| CN110389280A (en) * | 2019-08-23 | 2019-10-29 | 广东电网有限责任公司 | A kind of current transformer polarity measurement device |
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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 |
Granted publication date: 20130605 |
|
| CX01 | Expiry of patent term |