CN105738757A - Tester for secondary polarity test of remotely-controllable mutual inductor - Google Patents
Tester for secondary polarity test of remotely-controllable mutual inductor Download PDFInfo
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- CN105738757A CN105738757A CN201610296374.1A CN201610296374A CN105738757A CN 105738757 A CN105738757 A CN 105738757A CN 201610296374 A CN201610296374 A CN 201610296374A CN 105738757 A CN105738757 A CN 105738757A
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- 238000012360 testing method Methods 0.000 title claims abstract description 53
- 238000004804 winding Methods 0.000 claims abstract description 37
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 238000002474 experimental method Methods 0.000 claims description 13
- 230000001052 transient effect Effects 0.000 claims description 12
- 238000012546 transfer Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000005674 electromagnetic induction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000013102 re-test Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/72—Testing of electric windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a tester for a secondary polarity test of a remotely-controllable mutual inductor. The tester comprises an operation test monitor and a signal generator. The signal generator is in electrical connection with a primary winding of the mutual inductor and is used for applying an instantaneous voltage to the primary winding of the mutual inductor. The operation test monitor comprises a remote control instruction module and a polarity test monitoring module. The remote control instruction module is used for emitting an instruction to the signal generator in a wireless mode so as to control the signal generator to apply the instantaneous voltage to the primary winding of the mutual inductor. The polarity test monitoring module is in electrical connection with a secondary winding of the mutual inductor and is used for measuring a current generated at the secondary winding of the mutual inductor. According to the invention, the tester for the secondary polarity test of the remotely-controllable mutual inductor is mainly used for measuring the secondary polarity of the mutual inductor, original two groups of test personnel are reduced to one group by adding a remote control function, the manpower and material resources are saved, the using is convenient, the efficiency is high, and the performance is reliable.
Description
Technical field
The present invention relates to transformer secondary polarity experimental technique field, be specially a kind of remote-controlled transformer secondary polarity experiment tester.
Background technology
Polarity test test be relay protection of power system and electrical test specialty newly installed at equipment such as transformers, effective simplation verification must be carried out after transformation or change wiring, it it is one of one important process of this specialty, transformer (one can be found in advance by polarity test test, secondary) problem that is likely to occur in external connection and loop in winding coil, the correctness of checking equipment and circuit connection, guarantee electrical equipment safe operation, existing Polarity experiment test equipment can not meet high efficiency requirement, only constantly bring forth new ideas and could solve that on-the-spot testing crew is many and ineffective problem.
Polarity test method of testing generally uses " direct current method ", namely electromagnetic induction principle is utilized, by DC source to tested transformer (primary side) (instantaneous) switching in short-term electricity mode, simulate one, one corresponding relation of tested primary winding of mutual inductor (primary side) electromagnetism Sudden Changing Rate and primary coil (secondary side) electromagnetic induction Sudden Changing Rate, engineering is called " heteropolarity " i.e. " Same Name of Ends ".
Relay protection specialty polarity test test job; energising point need to be tested and test point of observation works simultaneously; and two have object isolation or apart from each other between operating point; conventional operation needs two groups of personnel of 7 people; because of distant or have object shield also to need increase to transmit orders (call) personnel; one group at outdoor transformer (primary side) Accelerated Life power supply; with pointer gauge observation, another group refers to that its pin deflects dynamic scale and direction at indoor (secondary side), it is judged that whether polar orientation and the more often deflection of group no-load voltage ratio pin is dynamically correct.(once surveying) experiment power supply dosage adopts manual control, often occur that contact, turn-off time are irregular, outdoor test operation observes the phenomenons such as asynchronous with indoor test, cause result of the test unintelligible and need retest, if too much a dosage number of repetition, it be easily caused again power-supply battery continuous discharge capacity and decline and affect test job.Polarity test is usually taken by testing mutually, transformer has each phase of three-phase (secondary side) to have again multiple winding, tester needs outdoor repeatedly commutation and frequently transfer conversion testing location (different secondary acquisition end panels), therefore polarity test work is passive, inefficiency, sometimes because above-mentioned reason causes repetitive work, test result mistake even occurs, hide some dangers for the safe operation of equipment.
Summary of the invention
Present invention aims to above-mentioned the deficiencies in the prior art, it is provided that a kind of remote-controlled transformer secondary polarity experiment tester.
The technical scheme is that and be achieved in that: a kind of remote-controlled transformer secondary polarity experiment tester, including:
Signal generator, itself and winding of transformer are electrical connected, in order to apply transient voltage at winding place of transformer；And
Operational testing monitor, it includes guidance command module and polarity test monitoring module, described guidance command module control signal generator wirelessly applies transient voltage at winding place of transformer, described polarity test monitoring module and transformer Secondary Winding are electrical connected, in order to measure the electric current that transformer Secondary Winding place produces.
Preferably, described guidance command module includes:
Signal projector, it is in order to emissioning controling signal；
Operation button, rises in order to input control command；
Launching signal processor, it is all electrical connected with signal projector and operation button, in order to receive the button inputted control command of operation, and according to control command control signal emitter emissioning controling signal；And
First code switch, it is with the control signal setting code thinking that signal projector sends.
Preferably, described signal generator includes:
Signal receiver, it is in order to receive the control signal that signal projector sends；
Second code switch, the control signal that its signal projector received in order to decode signal receiver sends；
Operational relay, itself and winding of transformer are electrical connected, in order to produce the transient voltage applied at winding place of transformer；And
Receiving signal processor, it is all electrical connected with signal receiver, the second code switch and operational relay, in order to the control signal received according to signal receiver, controls the transient voltage that operational relay produces to apply at winding place of transformer.
Preferably, described polarity test monitoring module by electromagnetic type pointer millivoltmeter, range transfer the files circuit and protection element form.
Compared with prior art, the invention has the beneficial effects as follows: the present invention is by increasing distant control function, former two groups of testing crews are reduced to bunch of testers, complete winding of transformer and the disposable whole wiring of Secondary Winding before polarity test, reduce in process of the test, test point is frequently changed in winding side repeatedly commutation of transformer and Secondary Winding side, short form test flow process, is greatly shortened test period, improves work efficiency, utilizes relay to produce instantaneous voltage, reliable and stable, it is simple to observe.
Accompanying drawing explanation
Below in conjunction with the embodiment in accompanying drawing, the present invention is described in further detail, but is not intended that any limitation of the invention.
Fig. 1 is principle of the invention figure；
Fig. 2 is polarity test monitoring module schematic diagram；
Fig. 3 is the structure chart of operational testing monitor；
Fig. 4 is the structure chart of signal generator.
In figure: 1, guidance command module, 11, signal projector, 111, transmitting antenna, 12, operation button, 13, launch signal processor, the 14, first code switch, 2, polarity test monitoring module, 21, secondary connection post, 3, signal receiver, 31, reception antenna, 4, the second code switch, 5, operational relay, 51, primary connection post, 6, receive signal processor.
Detailed description of the invention
Figure 1 illustrates the schematic diagram of a kind of remote-controlled transformer secondary polarity experiment tester.As it is shown in figure 1, a kind of remote-controlled transformer secondary polarity experiment tester, including: signal generator and operational testing monitor.Signal generator and winding of transformer are electrical connected, in order to apply transient voltage at winding place of transformer.Operational testing monitor includes guidance command module 1 and polarity test monitoring module 2, guidance command module 1 control signal generator wirelessly applies transient voltage at winding place of transformer, polarity test monitoring module 2 and transformer Secondary Winding are electrical connected, in order to measure the electric current that transformer Secondary Winding place produces.
Guidance command module 1 includes: signal projector 11, it is in order to emissioning controling signal；Operation button 12, rises in order to input control command；Launching signal processor 13, it is all electrical connected with signal projector 11 and operation button 12, in order to receive the control command of operation button 12 input, and according to control command control signal emitter 11 emissioning controling signal；And first code switch 14, it is with the control signal setting code thinking that signal projector 11 sends.
Signal generator includes: signal receiver 3, and it is in order to receive the control signal that signal projector 11 sends；Second code switch 4, the control signal that the signal projector 11 that it receives in order to decode signal receiver 3 sends；Operational relay 5, itself and winding of transformer are electrical connected, in order to produce the transient voltage applied at winding place of transformer；And receive signal processor 6, it is all electrical connected with signal receiver the 3, second code switch 4 and operational relay 5, in order to connect 3 control signals received according to signal receiver, control the transient voltage that operational relay 5 produces to apply at winding place of transformer.
Figure 2 illustrates the schematic diagram of polarity test monitoring module.As in figure 2 it is shown, polarity test monitoring module 2 by electromagnetic type pointer millivoltmeter, range transfer the files circuit and protection element form, range transfers the files circuit in order to regulate the gear of electromagnetic type pointer millivoltmeter.
Figure 3 illustrates the structure chart of operational testing monitor.As it is shown on figure 3, transmitting antenna 111 and signal projector 11 are electrical connected, operation button 12 side is provided with display lamp, and secondary connection post 21 and polarity test monitoring module 2 are electrical connected, in order to connect the Secondary Winding of transformer.
Figure 4 illustrates the structure chart of signal generator.As shown in Figure 4, reception antenna 31, it is electrical connected with signal receiver 3, primary connection post 51 and operational relay 5 are electrical connected.
Embodiment provided above is the better embodiment of the present invention, only it is used for the present invention is conveniently described, not the present invention is done any pro forma restriction, any art has usually intellectual, if in the scope without departing from the carried technical characteristic of the present invention, utilize disclosed technology contents to be made the Equivalent embodiments that local is changed or modified, and without departing from the technical characteristic content of the present invention, all still fall within the scope of the technology of the present invention feature.
Claims (4)
1. a remote-controlled transformer secondary polarity experiment tester, it is characterised in that including:
Signal generator, itself and winding of transformer are electrical connected, in order to apply transient voltage at winding place of transformer；And operational testing monitor, it includes guidance command module and polarity test monitoring module, described guidance command module control signal generator wirelessly applies transient voltage at winding place of transformer, described polarity test monitoring module and transformer Secondary Winding are electrical connected, in order to measure the electric current that transformer Secondary Winding place produces.
2. the remote-controlled transformer secondary polarity experiment tester of one according to claim 1, it is characterised in that described guidance command module includes:
Signal projector, it is in order to emissioning controling signal；
Operation button, rises in order to input control command；
Launching signal processor, it is all electrical connected with signal projector and operation button, in order to receive the button inputted control command of operation, and according to control command control signal emitter emissioning controling signal；And
First code switch, it is with the control signal setting code thinking that signal projector sends.
3. the remote-controlled transformer secondary polarity experiment tester of one according to claim 1 and 2, it is characterised in that described signal generator includes:
Signal receiver, it is in order to receive the control signal that signal projector sends；
Second code switch, the control signal that its signal projector received in order to decode signal receiver sends；
Operational relay, itself and winding of transformer are electrical connected, in order to produce the transient voltage applied at winding place of transformer；And
Receiving signal processor, it is all electrical connected with signal receiver, the second code switch and operational relay, in order to the control signal received according to signal receiver, controls the transient voltage that operational relay produces to apply at winding place of transformer.
4. the remote-controlled transformer secondary polarity experiment tester of one according to claim 1, it is characterised in that described polarity test monitoring module by electromagnetic type pointer millivoltmeter, range transfer the files circuit and protection element form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296374.1A CN105738757A (en) | 2016-05-08 | 2016-05-08 | Tester for secondary polarity test of remotely-controllable mutual inductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296374.1A CN105738757A (en) | 2016-05-08 | 2016-05-08 | Tester for secondary polarity test of remotely-controllable mutual inductor |
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| CN105738757A true CN105738757A (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610296374.1A Pending CN105738757A (en) | 2016-05-08 | 2016-05-08 | Tester for secondary polarity test of remotely-controllable mutual inductor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771837A (en) * | 2016-12-23 | 2017-05-31 | 国网山东省电力公司菏泽供电公司 | A kind of current transformer remote polarity tester |
| CN108196140A (en) * | 2018-01-31 | 2018-06-22 | 国网青海省电力公司西宁供电公司 | A kind of Portable voltage mutual inductor no-load voltage ratio tester |
| CN108957218A (en) * | 2018-08-24 | 2018-12-07 | 山东送变电工程有限公司 | A kind of mutual inductor is wireless polarity test device and method |
| CN109752628A (en) * | 2019-01-15 | 2019-05-14 | 国网辽宁省电力有限公司鞍山供电公司 | A kind of multifunctional mutual-inductor polarity test instrument based on embedded RTU |
| CN110888094A (en) * | 2019-11-23 | 2020-03-17 | 国网河南省电力公司检修公司 | Polarity tester for current transformer |
| CN112415440A (en) * | 2020-11-26 | 2021-02-26 | 国网天津市电力公司 | Full-automatic polarity tester of three-phase alternating current loop mutual inductor group |
-
2016
- 2016-05-08 CN CN201610296374.1A patent/CN105738757A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771837A (en) * | 2016-12-23 | 2017-05-31 | 国网山东省电力公司菏泽供电公司 | A kind of current transformer remote polarity tester |
| CN106771837B (en) * | 2016-12-23 | 2023-07-18 | 国网山东省电力公司菏泽供电公司 | Remote polarity tester for current transformer |
| CN108196140A (en) * | 2018-01-31 | 2018-06-22 | 国网青海省电力公司西宁供电公司 | A kind of Portable voltage mutual inductor no-load voltage ratio tester |
| CN108957218A (en) * | 2018-08-24 | 2018-12-07 | 山东送变电工程有限公司 | A kind of mutual inductor is wireless polarity test device and method |
| CN109752628A (en) * | 2019-01-15 | 2019-05-14 | 国网辽宁省电力有限公司鞍山供电公司 | A kind of multifunctional mutual-inductor polarity test instrument based on embedded RTU |
| CN109752628B (en) * | 2019-01-15 | 2024-03-19 | 国网辽宁省电力有限公司鞍山供电公司 | Multifunctional mutual inductor polarity tester based on embedded RTU |
| CN110888094A (en) * | 2019-11-23 | 2020-03-17 | 国网河南省电力公司检修公司 | Polarity tester for current transformer |
| CN112415440A (en) * | 2020-11-26 | 2021-02-26 | 国网天津市电力公司 | Full-automatic polarity tester of three-phase alternating current loop mutual inductor group |
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Application publication date: 20160706 |