CN103323671B - Transformer directly hinders and loaded switch parameter measuring apparatus - Google Patents
Transformer directly hinders and loaded switch parameter measuring apparatus Download PDFInfo
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- CN103323671B CN103323671B CN201310236725.6A CN201310236725A CN103323671B CN 103323671 B CN103323671 B CN 103323671B CN 201310236725 A CN201310236725 A CN 201310236725A CN 103323671 B CN103323671 B CN 103323671B
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- 238000012360 testing method Methods 0.000 claims abstract description 113
- 238000012545 processing Methods 0.000 claims abstract description 81
- 238000005259 measurement Methods 0.000 claims abstract description 20
- 238000002474 experimental method Methods 0.000 description 8
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Abstract
The invention discloses a kind of transformer directly to hinder and loaded switch parameter measuring apparatus, comprising: the central processing unit generating test instruction; Be connected with central processing unit, according to the constant current source of the instruction output constant current signal that central processing unit generates; Be connected with central processing unit and constant current source, receive the constant current signal that constant current source exports, and the instruction that central processing unit described in root generates exports the function commutation circuit of test signal; Be connected with function commutation circuit, carry out the data acquisition circuit of data acquisition according to the test signal of function commutation circuit output; Central processing unit is also connected with data acquisition circuit, receives the data that data acquisition circuit gathers, and exports measurement result after processing the data received.The present invention can possess the test of DC Resistance of Transformer test and on-load tap changers of transformers parameter simultaneously.
Description
Technical field
The present invention relates to technical field of power systems, more particularly, relate to a kind of transformer and directly hinder and loaded switch parameter measuring apparatus.
Background technology
The direct current resistance test of transformer and the load ratio bridging switch parameter testing of transformer be transformer interruption maintenance must do project, in each Repair of Transformer, have very important meaning.
In existing measuring technology, if want to realize above-mentioned two tests, need direct-current resistance tester for transformer and the on-load tap changers of transformers parameter tester of transformer user configure dedicated, because these two kinds of instrument manufacturer facility men are more, and it is of a great variety, and the method for testing of each producer, method of operating and mode of connection are not identical, if above-mentioned two tests therefore will be carried out, need to carry out twice test preliminary work and twice wiring, take out stitches, greatly reduce on-the-spot work efficiency, and the separate unit purchase cost of above-mentioned two kinds of instruments is higher.
Summary of the invention
In view of this, the invention provides a kind of transformer and directly hinder and loaded switch parameter measuring apparatus, the test of DC Resistance of Transformer test and on-load tap changers of transformers parameter can be possessed simultaneously.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of transformer directly hinders and loaded switch parameter measuring apparatus, comprising:
Generate the central processing unit of test instruction;
Be connected with described central processing unit, according to the constant current source of the instruction output constant current signal that described central processing unit generates;
Be connected with described central processing unit and constant current source, receive the constant current signal that described constant current source exports, and export the function commutation circuit of test signal according to the instruction that described central processing unit generates;
Be connected with described function commutation circuit, carry out the data acquisition circuit of data acquisition according to the test signal of described function commutation circuit output;
Described central processing unit is also connected with described data acquisition circuit, receives the data that described data acquisition circuit gathers, and exports measurement result after processing the data received.
Preferably, described transformer directly hinders and loaded switch parameter measuring apparatus also comprises:
Be connected with described central processing unit, to the measuring and protecting circuit that tested transformer discharges.
Preferably, described transformer directly hinders and loaded switch parameter measuring apparatus also comprises:
Be connected with described central processing unit, show the display of the measurement result that described central processing unit exports.
Preferably, described transformer directly hinders and loaded switch parameter measuring apparatus also comprises:
Be connected with described central processing unit, store the storer of the measurement result that described central processing unit exports.
Preferably, described data acquisition circuit comprises: voltage signal acquisition circuit and current signal Acquisition Circuit.
As can be seen from above-mentioned technical scheme, a kind of transformer disclosed by the invention directly hinders and loaded switch parameter measuring apparatus, test instruction is generated by central processing unit, and the test instruction of generation is sent to connected constant current source and function commutation circuit, constant current source is according to the test instruction output constant current signal received, and constant current signal is exported to connected function commutation circuit, test function selection is carried out in the instruction that function commutation circuit exports according to the constant current signal of the constant current source output received and central processing unit, export test signal, the test signal that the data acquisition circuit receiving function commutation circuit be connected with function commutation circuit exports, data acquisition is carried out according to the test signal received, and the data of collection are sent to connected central processing unit, central processing unit exports measurement result after processing the data received, achieve and automatically the direct current resistance of transformer is tested or the test of on-load tap changers of transformers parameter, improve work on the spot efficiency, avoid the different experiments preliminary work taked when two kinds of different experiments are carried out respectively and secondary connects simultaneously, to take out stitches work.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 a kind of transformer disclosed in the embodiment of the present invention directly hinders and the structural representation of loaded switch parameter measuring apparatus;
Fig. 2 a kind of transformer disclosed in another embodiment of the present invention directly hinders and the structural representation of loaded switch parameter measuring apparatus;
Fig. 3 a kind of transformer disclosed in another embodiment of the present invention directly hinders and the structural representation of loaded switch parameter measuring apparatus.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the invention discloses a kind of transformer directly to hinder and loaded switch parameter measuring apparatus, the test of DC Resistance of Transformer test and on-load tap changers of transformers parameter can be possessed simultaneously.
As shown in Figure 1, for a kind of transformer disclosed by the invention directly hinders and loaded switch parameter measuring apparatus, comprising:
Generate the central processing unit 11 of test instruction;
Be connected with central processing unit 11, according to the constant current source 12 of the instruction output constant current signal that central processing unit 11 generates;
Be connected with central processing unit 11 and constant current source 12, receive the constant current signal that constant current source 12 exports, and export the function commutation circuit 13 of test signal according to the instruction that central processing unit 11 generates;
Be connected with function commutation circuit 13, carry out the data acquisition circuit 14 of data acquisition according to the test signal of function commutation circuit 13 output;
Central processing unit 11 is also connected with data acquisition circuit 14, receives the data that data acquisition circuit 14 gathers, and exports measurement result after processing the data received.
Concrete, data acquisition circuit 14 comprises voltage signal acquisition circuit and current signal Acquisition Circuit.
The principle of work of above-described embodiment is: when carrying out direct current resistance test or load ratio bridging switch parameter testing to transformer, central processing unit 11 generates test instruction, wherein test instruction is direct current resistance test instruction or load ratio bridging switch parameter testing instruction, the test instruction of generation is sent to connected constant current source 12 and function commutation circuit 13 by central processing unit 11, constant current source 12 is according to the test instruction output constant current signal received, and constant current signal is sent to connected function commutation circuit 13, function commutation circuit 13 exports test signal according to the constant current signal received and test instruction, when the test instruction received is direct current resistance test instruction, the test signal that function commutation circuit 13 exports is direct current resistance test signal, when the test instruction received is load ratio bridging switch parameter testing instruction, the test signal that function commutation circuit 13 exports is load ratio bridging switch parametric testing signals, the data acquisition circuit 14 be connected with function commutation circuit 13, according to the test signal that function commutation circuit 13 exports, voltage signal acquisition and current signal collection are carried out to transformer, and the data of collection are sent to connected central processing unit 11, after the data received process by central processing unit 11, export measurement result, thus the automatic switchover achieved DC Resistance of Transformer test and load ratio bridging switch parameter testing, improve work on the spot efficiency, avoid the different experiments preliminary work taked when different experiments is carried out respectively and secondary connects, to take out stitches work.
As shown in Figure 2, disclosed in another embodiment of the present invention, a kind of transformer directly hinders and loaded switch parameter measuring apparatus, comprising:
Generate the central processing unit 21 of test instruction;
Be connected with central processing unit 21, according to the constant current source 22 of the instruction output constant current signal that central processing unit 21 generates;
Be connected with central processing unit 21 and constant current source 22, receive the constant current signal that constant current source 22 exports, and export the function commutation circuit 23 of test signal according to the instruction that central processing unit 21 generates;
Be connected with function commutation circuit 23, carry out the data acquisition circuit 24 of data acquisition according to the test signal of function commutation circuit 23 output;
Be connected with central processing unit 21, to the measuring and protecting circuit 25 that tested transformer discharges;
Central processing unit 21 is also connected with data acquisition circuit 24, receives the data that data acquisition circuit 24 gathers, and exports measurement result after processing the data received.
Concrete, data acquisition circuit 24 comprises voltage signal acquisition circuit and current signal Acquisition Circuit.
The principle of work of above-described embodiment is: when carrying out direct current resistance test or load ratio bridging switch parameter testing to transformer, central processing unit 21 generates test instruction, wherein test instruction is direct current resistance test instruction or load ratio bridging switch parameter testing instruction, the test instruction of generation is sent to connected constant current source 22 and function commutation circuit 23 by central processing unit 21, constant current source 22 is according to the test instruction output constant current signal received, and constant current signal is sent to connected function commutation circuit 23, function commutation circuit 23 exports test signal according to the constant current signal received and test instruction, when the test instruction received is direct current resistance test instruction, the test signal that function commutation circuit 23 exports is direct current resistance test signal, when the test instruction received is load ratio bridging switch parameter testing instruction, the test signal that function commutation circuit 23 exports is load ratio bridging switch parametric testing signals, the data acquisition circuit 24 be connected with function commutation circuit 23, according to the test signal that function commutation circuit 23 exports, voltage signal acquisition and current signal collection are carried out to transformer, and the data of collection are sent to connected central processing unit 21, after the data received process by central processing unit 21, export measurement result, achieve the automatic switchover to DC Resistance of Transformer test and load ratio bridging switch parameter testing, improve work on the spot efficiency, avoid the different experiments preliminary work taked when different experiments is carried out respectively and secondary connects, to take out stitches work.After test terminates, central processing unit 21 controls connected measuring and protecting circuit 25 and discharges to tested transformer, furthermore achieved that make device from transformer inverse electromotive force energy bad.
As shown in Figure 3, disclosed in another embodiment of the present invention, a kind of transformer directly hinders and loaded switch parameter measuring apparatus, comprising:
Generate the central processing unit 321 of test instruction;
Be connected with central processing unit 31, according to the constant current source 32 of the instruction output constant current signal that central processing unit 31 generates;
Be connected with central processing unit 31 and constant current source 32, receive the constant current signal that constant current source 32 exports, and export the function commutation circuit 33 of test signal according to the instruction that central processing unit 31 generates;
Be connected with function commutation circuit 33, carry out the data acquisition circuit 34 of data acquisition according to the test signal of function commutation circuit 33 output;
Be connected with central processing unit 31, to the measuring and protecting circuit 35 that tested transformer discharges;
Central processing unit 31 is also connected with data acquisition circuit 34, receives the data that data acquisition circuit 34 gathers, and exports measurement result after processing the data received;
Be connected with central processing unit 31, the display 36 of the measurement result that display central processing unit exports;
Be connected with central processing unit 31, store the storer 37 of the measurement result that central processing unit 31 exports.
Concrete, data acquisition circuit 34 comprises voltage signal acquisition circuit and current signal Acquisition Circuit.
The principle of work of above-described embodiment is: when carrying out direct current resistance test or load ratio bridging switch parameter testing to transformer, central processing unit 31 generates test instruction, wherein test instruction is direct current resistance test instruction or load ratio bridging switch parameter testing instruction, the test instruction of generation is sent to connected constant current source 32 and function commutation circuit 33 by central processing unit 31, constant current source 32 is according to the test instruction output constant current signal received, and constant current signal is sent to connected function commutation circuit 323, function commutation circuit 33 exports test signal according to the constant current signal received and test instruction, when the test instruction received is direct current resistance test instruction, the test signal that function commutation circuit 33 exports is direct current resistance test signal, when the test instruction received is load ratio bridging switch parameter testing instruction, the test signal that function commutation circuit 33 exports is load ratio bridging switch parametric testing signals, the data acquisition circuit 34 be connected with function commutation circuit 33, according to the test signal that function commutation circuit 33 exports, voltage signal acquisition and current signal collection are carried out to transformer, and the data of collection are sent to connected central processing unit 31, after the data received process by central processing unit 31, export measurement result, achieve the automatic switchover to DC Resistance of Transformer test and load ratio bridging switch parameter testing, improve work on the spot efficiency, avoid the different experiments preliminary work taked when different experiments is carried out respectively and secondary connects, to take out stitches work.After test terminates, central processing unit 31 controls connected measuring and protecting circuit 35 and discharges to tested transformer, furthermore achieved that make device from transformer inverse electromotive force energy bad.The measurement result that central processing unit 31 exports shows by display 36 in real time that be connected with central processing unit 31, has reflected measurement result intuitively.The measurement result that central processing unit 31 exports stores by the storer 37 be connected with central processing unit 31, achieves the storage of historical measurement data.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. transformer directly hinders and a loaded switch parameter measuring apparatus, it is characterized in that, comprising:
Generate the central processing unit of test instruction;
Be connected with described central processing unit, according to the constant current source of the instruction output constant current signal that described central processing unit generates;
Be connected with described central processing unit and constant current source, receive the constant current signal that described constant current source exports, and export the function commutation circuit of test signal according to the instruction that described central processing unit generates;
Be connected with described function commutation circuit, carry out the data acquisition circuit of data acquisition according to the test signal of described function commutation circuit output;
Described central processing unit is also connected with described data acquisition circuit, receives the data that described data acquisition circuit gathers, and exports measurement result after processing the data received;
Described function commutation circuit exports test signal according to the constant current signal received and test instruction, when the test instruction received is direct current resistance test instruction, the test signal that described function commutation circuit exports is direct current resistance test signal, when the test instruction received is load ratio bridging switch parameter testing instruction, the test signal that described function commutation circuit exports is load ratio bridging switch parametric testing signals.
2. transformer according to claim 1 directly hinders and loaded switch parameter measuring apparatus, it is characterized in that, also comprises:
Be connected with described central processing unit, to the measuring and protecting circuit that tested transformer discharges.
3. transformer according to claim 1 and 2 directly hinders and loaded switch parameter measuring apparatus, it is characterized in that, also comprises:
Be connected with described central processing unit, show the display of the measurement result that described central processing unit exports.
4. transformer according to claim 3 directly hinders and loaded switch parameter measuring apparatus, it is characterized in that, also comprises:
Be connected with described central processing unit, store the storer of the measurement result that described central processing unit exports.
5. transformer according to claim 1 directly hinders and loaded switch parameter measuring apparatus, it is characterized in that, described data acquisition circuit comprises: voltage signal acquisition circuit and current signal Acquisition Circuit.
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| CN201310236725.6A CN103323671B (en) | 2013-06-14 | 2013-06-14 | Transformer directly hinders and loaded switch parameter measuring apparatus |
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| CN201310236725.6A CN103323671B (en) | 2013-06-14 | 2013-06-14 | Transformer directly hinders and loaded switch parameter measuring apparatus |
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| CN103323671B true CN103323671B (en) | 2015-08-05 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105158634B (en) * | 2015-09-23 | 2018-04-03 | 中国人民解放军理工大学 | It is a kind of can expanding type signal level lightning protection device broken string, short, intersect short circuit and DC impedance measuring circuit system |
| CN105807217A (en) * | 2016-03-14 | 2016-07-27 | 国网浙江宁波市鄞州区供电公司 | Transformer direct-current resistance and on-load tap-changer integrated tester |
| CN106772003A (en) * | 2016-12-01 | 2017-05-31 | 武汉市欧睿科技有限公司 | A kind of load switch of transformer test system and method |
| CN106771633A (en) * | 2016-12-30 | 2017-05-31 | 易瓦特科技股份公司 | Hand-held instrument for measuring DC resistance |
| CN106771632A (en) * | 2016-12-30 | 2017-05-31 | 易瓦特科技股份公司 | Multi-channel DC resistance meter |
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