CN203658508U - Transformer safety test system - Google Patents
Transformer safety test system Download PDFInfo
- Publication number
- CN203658508U CN203658508U CN201420053525.7U CN201420053525U CN203658508U CN 203658508 U CN203658508 U CN 203658508U CN 201420053525 U CN201420053525 U CN 201420053525U CN 203658508 U CN203658508 U CN 203658508U
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Abstract
The utility model discloses a transformer safety test system which comprises a shell made of a transparent material, an AC/DC power module (Alternating Current or Direct Current), a multifunctional digital display meter, a relay A and two test pens, wherein the AC/DC power module, the multifunctional digital display meter and the relay A are located in the shell; a power input end and a power output end are arranged on the shell; the input end of the AC/DC power module is connected with the power input end and the output end of the AC/DC power module is connected with a control coil input end of the relay A; a control switch of the test pen A is connected between the AC/DC power module and the relay A in series; the power input end is communicated with the power output end through two connection leads; and a normally-open output end of the relay A is connected on a connection lead between the power input end and the power output end in series. According to the transformer safety test system, the safety of the test personnel is ensured in the test process, and the operation is more convenient and rapid.
Description
Technical field
The utility model relates to electronic product detection technique field, relates in particular to a kind of transformer safety test system, can guarantee the safety of tester in test process, and more convenient operation is quick.
Background technology
The method of current check transformer element performance: be connected on power supply with power lead one end of a Band clamp, clip is manually clamped transformer input end in one end, after logical 220V alternating current, then differentiates the quality of transformer with the voltage of multimeter test output terminal.This inspection method seriously has the potential danger of electric shock, if operating personnel, because forgetting pass power supply, just directly remove to pull out the clip head of transformer input end, because clip is exposed metal end, is easy to Danger Electric shock risk is occurred.
Utility model content
For prior art above shortcomings, the purpose of this utility model is just to provide a kind of transformer safety test system, can effectively solve the problem that is prone to potential safety hazard in existing test, thereby guarantee the safety of tester in test process, and more convenient operation is quick.
To achieve these goals, the technical solution adopted in the utility model is such: a kind of transformer safety test system, it is characterized in that: comprise the housing of being made by transparent material, AC/DC power module, Multifunction digital indicating meter, relay A and two test pens: test pen A and test pen B, described test pen has gauge tap, test lead and test lead; Described AC/DC power module, Multifunction digital indicating meter and relay A are positioned at housing, are provided with a power input and power output end on housing; The input end of described AC/DC power module is connected with this power input, and the output terminal of AC/DC power module is connected with the control coil input end of relay A, and the gauge tap of test pen A is series between AC/DC power module and relay A; The test lead of two test pens is connected with the test input of Multifunction digital indicating meter by test lead respectively; Described power input connects wires by two simultaneously and is connected with power output end, and described relay A often opens one that output terminal is series between power input and power output end and is connected on wire.
Further, also comprise a relay B, the control coil input end of this relay B is connected with the output terminal of AC/DC power module, and the gauge tap of test pen B is series between relay B and AC/DC power module; The output terminal of often opening of relay B is series at another between power input and power output end and is connected on wire.Adopt two relays that power supply is exported and controlled, security is higher, when a hand leaves test pen is, whole out-put supply is in off state, thus formation Non voltage output, and then effectively avoid the potential safety hazard causing because of electric shock.
Further, between power input and power output end, be also in series with a leakage switch.Like this, there is the situations such as short circuit in whole circuit time, can be promptly by circuit port, thus further guarantee the security in test operation.
Further, described Multifunction digital indicating meter adopts digital display type voltage table, and its feeder ear is connected with the output terminal of AC/DC power module.Read test result is convenient, quick, and degree of accuracy is higher.
Compared with prior art, the utlity model has following advantage:
1, safety coefficient is high, and the gauge tap of only pinning on test pen could start output voltage, and therefore in the time that hand leaves test pen, transformer input end has not had electricity output, can prevent from the Danger Electric shock risk that causes because of maloperation from playing the effect of safeguard protection completely.
2, be convenient to test results monitored, the Multifunction digital indicating meter in this device case and test pen are ingenious to combine, and in the time that the tip of test pen touches object under test, can show in time the both end voltage of object under test, need to not connect separately Multifunction digital indicating meter.
3, easy to operate, quick, unclamp the clip that can directly reach lower transformer after test pen with hand, change next transformer setup test, operate again and do not need to disconnect 220V input power, do not need tape insulation gloves etc., can obviously improve like this operating efficiency yet.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present utility model.
In figure: 1-housing, 2-AC/DC power module, 3-Multifunction digital indicating meter, 41-relay A, 42-relay B, 5-power input, 6-power output end, 71-test pen A, 72-test pen B, 8-leakage switch, 9-transformer to be measured.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Embodiment: referring to Fig. 1, a kind of transformer safety test system, comprise the housing 1 of being made by transparent material, AC/DC power module 2, Multifunction digital indicating meter 3, relay A41 and two test pens: test pen A71 and test pen B72, described test pen has gauge tap, test lead and test lead.Described AC/DC power module 2, Multifunction digital indicating meter 3 and relay are positioned at housing 1.
On housing 1, be provided with a power input 5 and power output end 6; Described AC/DC power supply is 18V AC/DC power module 2; The input end of AC/DC power module 2 is connected with this power input 5, and the output terminal of AC/DC power module 2 is connected with the control coil input end of relay A41, and the gauge tap of test pen A71 is series between AC/DC power module 2 and relay A41.The test lead of two test pens is connected with the test input of Multifunction digital indicating meter 3 by test lead respectively, and the feeder ear of Multifunction digital indicating meter 3 is connected with the output terminal of AC/DC power module 2.When concrete making, described Multifunction digital indicating meter 3 adopts digital display type voltage table, and its feeder ear is connected with the output terminal of AC/DC power module 2; Read test result is convenient, quick, and degree of accuracy is higher.
Described power input 5 connects wires by two simultaneously and is connected with power output end 6, and described relay A41 often opens one that output terminal is series between power input 5 and power output end 6 and is connected on wire.Between power input 5 and power output end 6, be also in series with a leakage switch 8; Like this, there is the situations such as short circuit in whole circuit time, can be promptly by circuit port, thus further guarantee the security in test operation.
Also comprise a relay B42, the control coil input end of this relay B42 is connected with the output terminal of AC/DC power module 2, and the gauge tap of test pen B72 is series between relay B42 and AC/DC power module 2; The output terminal of often opening of relay B42 is series at another between power input 5 and power output end 6 and is connected on wire.Adopt two relays that power supply is exported and controlled, security is higher, when a hand leaves test pen is, whole out-put supply is in off state, thus formation Non voltage output, and then effectively avoid the potential safety hazard causing because of electric shock.
While carrying out transformer testing: the 1st step, is electrically connected power input 5 and 220V civil power; The 2nd step, is connected the input end of transformer 9 to be measured with power output end 6; The 3rd step, is electrically connected the output terminal of the test lead of two test pens and transformer; The 4th Walk, pin respectively two gauge tap on test pen with two hands, now the circuit of relay is connected, relay is started working, be transformed into normally off by normally open, make 220V alternating current after leakage switch 8, pass through relay, final and transformer 9 input ends to be measured interconnect, and start to carry out voltage tester again.
By the utility model test macro, only have after the gauge tap of two test pens is all pinned, relay could be converted into normally off by normally open, and circuit could conducting.The input end of transformer 9 to be measured just has electricity.When hand leaves after gauge tap, relay just quits work, and circuit automatically disconnects and stops output, and the input end of transformer 9 to be measured does not just have electricity.Even if now hand touches exposed clip, also can not get an electric shock, can play the effect of safeguard protection completely.
Finally it should be noted that, above embodiment is only in order to the technical solution of the utility model to be described but not restriction technologies scheme, those of ordinary skill in the art is to be understood that, those are modified to the technical solution of the utility model or are equal to replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of claim scope of the present utility model.
Claims (4)
1. a transformer safety test system, it is characterized in that: comprise the housing of being made by transparent material, AC/DC power module, Multifunction digital indicating meter, relay A and two test pens: test pen A and test pen B, described test pen has gauge tap, test lead and test lead; Described AC/DC power module, Multifunction digital indicating meter and relay A are positioned at housing, are provided with a power input and power output end on housing; The input end of described AC/DC power module is connected with this power input, and the output terminal of AC/DC power module is connected with the control coil input end of relay A, and the gauge tap of test pen A is series between AC/DC power module and relay A; The test lead of two test pens is connected with the test input of Multifunction digital indicating meter by test lead respectively; Described power input connects wires by two simultaneously and is connected with power output end, and described relay A often opens one that output terminal is series between power input and power output end and is connected on wire.
2. a kind of transformer safety test system according to claim 1, it is characterized in that: also comprise a relay B, the control coil input end of this relay B is connected with the output terminal of AC/DC power module, and the gauge tap of test pen B is series between relay B and AC/DC power module; The output terminal of often opening of relay B is series at another between power input and power output end and is connected on wire.
3. a kind of transformer safety test system according to claim 1, is characterized in that: between power input and power output end, be also in series with a leakage switch.
4. a kind of transformer safety test system according to claim 1, is characterized in that: described Multifunction digital indicating meter adopts digital display type voltage table, and its feeder ear is connected with the output terminal of AC/DC power module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420053525.7U CN203658508U (en) | 2014-01-27 | 2014-01-27 | Transformer safety test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420053525.7U CN203658508U (en) | 2014-01-27 | 2014-01-27 | Transformer safety test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203658508U true CN203658508U (en) | 2014-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420053525.7U Expired - Fee Related CN203658508U (en) | 2014-01-27 | 2014-01-27 | Transformer safety test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203658508U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717388A (en) * | 2015-12-08 | 2016-06-29 | 国家电网公司 | Transformer test platform |
-
2014
- 2014-01-27 CN CN201420053525.7U patent/CN203658508U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717388A (en) * | 2015-12-08 | 2016-06-29 | 国家电网公司 | Transformer test platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20160127 |
|
| EXPY | Termination of patent right or utility model |