CN211478608U - Single-phase short circuit test device of transformer - Google Patents
Single-phase short circuit test device of transformer Download PDFInfo
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- CN211478608U CN211478608U CN201922298093.1U CN201922298093U CN211478608U CN 211478608 U CN211478608 U CN 211478608U CN 201922298093 U CN201922298093 U CN 201922298093U CN 211478608 U CN211478608 U CN 211478608U
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- binding post
- display module
- measurement display
- side binding
- contactor
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Abstract
The utility model relates to a single-phase short circuit test device of transformer, mainly including ac contactor, voltage measurement display module, current measurement display module, input side binding post, output side binding post, voltage regulator and protective housing, through setting up ac contactor, input side binding post and output side binding post, ensure only once wiring after, can realize the switching of test circuit through the ac contactor operation, convenient operation and safety; the protection box is arranged, so that the safety of internal components can be protected; the voltage measurement display module and the current measurement display module are arranged, so that the voltage and the current can be accurately measured, the measurement value can be displayed, and the reading is convenient. The utility model discloses not only convenient operation, it is efficient, safe in utilization moreover, can high-efficient completion operation when guarantee operating personnel safety.
Description
Technical Field
The utility model relates to a transformer test technical field especially relates to a single-phase short circuit test device of transformer.
Background
The transformer is a key device of a power grid, the purpose of the transformer short-circuit test is to measure the short-circuit loss and the short-circuit voltage of the transformer, the single-phase power supply can be used for the short-circuit test of the single-phase transformer only, or the single-phase power supply can be used for the short-circuit test of the three-phase transformer only due to the limitation of a field or an instrument, the single-phase short-circuit test can accurately judge which phase fails, the cost of the sensor and the requirement on the field power supply can be reduced compared with the case of simultaneously measuring the three phases, and the current method is to realize single-phase measurement by manually and frequently replacing input wiring, so.
SUMMERY OF THE UTILITY MODEL
Not enough more than, the utility model provides a single-phase short circuit test device of transformer can be convenient for the short circuit test of transformer.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a single-phase short circuit test device of transformer, includes ac contactor, voltage measurement display module, current measurement display module, input side binding post, output side binding post, voltage regulator, guard box and baffle, the baffle is transversely fixed in the inside of guard box, ac contactor, voltage measurement display module, current measurement display module, input side binding post and output side binding post fixed mounting are in on the baffle of guard box inside, ac contactor's quantity is 3, the quantity of input side binding post and output side binding post is 2 respectively and 3, every output side binding post respectively with 2 ac contactor is connected, and every ac contactor all is connected with 2 leading-out terminals, voltage measurement display module with input side binding post is parallelly connected, the voltage regulator with input side binding post passes through cable junction, the input side wiring terminal, the current measurement display module and the input of the alternating current contactor are connected inside the protective box.
Further, the voltage measurement display module and the current measurement display module are modules with measurement and display functions, and the accuracy grade is not more than 0.2 grade.
Further, the protective box comprises a box body and a box cover, wherein one side of the box body is hinged with one side of the box cover, and the other side of the box body is connected with the other side of the box cover through a lock catch.
The utility model has the advantages that:
1. the alternating current contactor, the input side wiring terminal and the output side wiring terminal are arranged, so that the switching of a test circuit can be realized through the operation of the alternating current contactor after one-time wiring is ensured, and the operation is convenient and safe;
2. the protection box is arranged, so that the safety of internal components can be protected;
3. the voltage measurement display module and the current measurement display module are arranged, so that the voltage and the current can be accurately measured, the measurement value can be displayed, and the reading is convenient;
4. the utility model discloses not only convenient operation, it is efficient, safe in utilization moreover, can high-efficient completion operation when guarantee operating personnel safety.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic diagram of an embodiment of the present invention.
Wherein the labels shown in the figures are: 1: ac contactor, 2: voltage measurement display module, 3: current measurement display module, 4: input-side terminal, 5: output side connection terminal, 6: a voltage regulator, 7: protective box, 71: case, 72: case lid, 8: separator, 9: single-phase ac cable, transformer: 10.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Please refer to fig. 1, the utility model provides a pair of single-phase short circuit test device of transformer mainly includes ac contactor 1, voltage measurement display module 2, current measurement display module 3, input side binding post 4, output side binding post 5, voltage regulator 6, guard box 7 and baffle 8. The protective box 7 comprises a box body 71 and a box cover 72, wherein one side of the box body 71 is hinged with one side of the box cover 72, and the other side of the box body 71 is connected with the other side of the box cover 72 through a lock catch. The baffle 8 is transversely fixed in the protection box 7, and the alternating current contactor 1, the voltage measurement display module 2, the current measurement display module 3, the input side wiring terminal 4 and the output side wiring terminal 5 are fixedly arranged on the baffle 8 in the protection box 7. The voltage measurement display module 2 and the current measurement display module 3 have the functions of measurement and display, the accuracy grade is not more than 0.2 grade, preferably, the model of the voltage measurement display module 2 is ZW1651, the model of the current measurement display module is ZW1652, and the accuracy grade is 0.2 grade. The number of the ac contactors 1 is 3, and the number of the input-side terminal block 4 and the number of the output-side terminal block 5 are 2 and 3, respectively. Every output side binding post 5 is connected with 2 ac contactor 1 respectively, and every ac contactor 1 all is connected with 2 leading-out terminals, and voltage measurement display module 2 is parallelly connected with input side binding post 4, and voltage regulator 6 passes through cable junction with input side binding post 4, and input side binding post 4, current measurement display module 3 and ac contactor 1's input are in 7 internal connection of guard box, every input side binding post 4 all links to each other with ac contactor 1.
When the device is used, referring to fig. 2, a single-phase alternating current cable under the condition of power failure is connected to the input end of a voltage regulator 6, a connecting terminal of a three-phase bushing at the high-voltage side of a transformer 10 is connected with connecting terminals 5 at the output side through cables, the handle of an alternating current contactor 1 is checked and ensured to be arranged at an 'OFF' position, the power supply of the single-phase alternating current cable is switched ON, the handle of the alternating current contactor 1 is sequentially arranged at an 'ON' position, the voltage and the current in the cable are measured through a voltage measurement display module 2 and a current measurement display module 3, and the short-circuit impedance and the short-circuit loss under the. The utility model discloses not only convenient operation, it is efficient, safe in utilization moreover.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (3)
1. The utility model provides a single-phase short circuit test device of transformer which characterized in that: including ac contactor (1), voltage measurement display module (2), current measurement display module (3), input side binding post (4), output side binding post (5), voltage regulator (6), protective housing (7) and baffle (8), baffle (8) transversely fix the inside of protective housing (7), ac contactor (1), voltage measurement display module (2), current measurement display module (3), input side binding post (4) and output side binding post (5) fixed mounting are in on baffle (8) inside protective housing (7), the quantity of ac contactor (1) is 3, the quantity of input side binding post (4) and output side binding post (5) is 2 respectively and 3, every output side binding post (5) respectively with 2 ac contactor (1) is connected, and every alternating current contactor (1) all is connected with 2 leading-out terminals, voltage measurement display module (2) with input side binding post (4) are parallelly connected, voltage regulator (6) with input side binding post (4) pass through the cable junction, input side binding post (4), current measurement display module (3) and the input of alternating current contactor (1) is in protective housing (7) internal connection.
2. The single-phase short circuit test device of the transformer according to claim 1, characterized in that: the voltage measurement display module (2) and the current measurement display module (3) are modules with measurement and display functions, and the accuracy grade is not more than 0.2 grade.
3. The single-phase short circuit test device of the transformer according to claim 1, characterized in that: the protective box (7) comprises a box body (71) and a box cover (72), wherein one side of the box body (71) is hinged to one side of the box cover (72), and the other side of the box body is connected with the other side of the box cover through a lock catch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922298093.1U CN211478608U (en) | 2019-12-19 | 2019-12-19 | Single-phase short circuit test device of transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922298093.1U CN211478608U (en) | 2019-12-19 | 2019-12-19 | Single-phase short circuit test device of transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211478608U true CN211478608U (en) | 2020-09-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922298093.1U Active CN211478608U (en) | 2019-12-19 | 2019-12-19 | Single-phase short circuit test device of transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211478608U (en) |
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2019
- 2019-12-19 CN CN201922298093.1U patent/CN211478608U/en active Active
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