CN208350977U - Mutual inductor secondary polarity device for fast detecting - Google Patents
Mutual inductor secondary polarity device for fast detecting Download PDFInfo
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- CN208350977U CN208350977U CN201820907870.0U CN201820907870U CN208350977U CN 208350977 U CN208350977 U CN 208350977U CN 201820907870 U CN201820907870 U CN 201820907870U CN 208350977 U CN208350977 U CN 208350977U
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- mutual inductor
- relay
- power supply
- polarity
- time
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- 238000009434 installation Methods 0.000 claims abstract description 24
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 6
- 229910052744 lithium Inorganic materials 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims 3
- 238000001514 detection method Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model relates to mutual inductor polarity detection technique fields, it is a kind of mutual inductor secondary polarity device for fast detecting, it includes time controller, polarity display unit, installation's power source, time controller includes the time relay, relay power supply, relay power supply is electrically connected with time relay coil, the output end of installation's power source, first binding post of time relay normally open contact passes through conducting wire and is electrically connected with tested mutual inductor primary side, the input terminal of installation's power source is electrically connected with the second binding post of time relay normally open contact, polarity display unit is electrically connected with tested mutual inductor secondary side.The utility model reasonable and compact in structure, it is easy to use, pulse current can be exported automatically, and compared to traditional detection method, the device is easy to operate, intuitive display, single can complete test job, have the characteristics that safe, laborsaving, easy, efficient.
Description
Technical field
It is that a kind of mutual inductor secondary polarity quickly detects dress the utility model relates to mutual inductor polarity detection technique field
It sets.
Background technique
Either conventional substation or intelligent substation, mutual inductor equipment carry key player.In electric measurement and
In relay protection circuit, the effect of voltage, current transformer is supplied with measurement and secondary voltage used for relay protection, electric current, no
It can only be used to for the primary equipment of electric system and secondary side being isolated, while can also will be primary according to mutual inductor ratio
Side voltage, electric current are converted to secondary voltage, electric current, use for secondary device in standing, and realize and monitor and protect to Operation of Electric Systems
Protective function.Therefore, each electric current in substation, voltage secondary circuit wiring whether correctness can be reliable for substation equipment
Operation, which has, to be directly affected.Currently, the secondary polarity for mutual inductor is verified also in conventional test methodologies, i.e., exist to mutual inductor
Primary side manually applies excitation, is differentiated secondary polarity wiring in secondary side acquisition signal.This method needs two work people
Member cooperates simultaneously, heavy workload and is easy to appear security risk.Therefore, it needs to develop a kind of mutual inductor secondary polarity quickly to detect
Detection device.
Summary of the invention
The utility model provides a kind of mutual inductor secondary polarity device for fast detecting, overcome the above-mentioned prior art no
Foot, can effectively solve existing measurement method needs at least two staff compounding practice simultaneously, time-consuming and laborious, construction efficiency compared with
Low, heavy workload and there are problems that security risk.
The technical solution of the utility model is realized by following measures: a kind of mutual inductor secondary polarity quickly detects
Device includes time controller, polarity display unit, installation's power source, and time controller includes the time relay, relay power supply
Power supply, relay power supply are electrically connected with time relay coil, the output end of installation's power source, time relay normally open contact
The first binding post pass through conducting wire and be electrically connected with tested mutual inductor primary side, the input terminal and the time relay of installation's power source are normal
The electrical connection of the second binding post of contact is opened, polarity display unit is electrically connected with tested mutual inductor secondary side.
Here is the further optimization and/or improvements to above-mentioned utility model technical solution:
On be set forth in the control switch that time controller further includes control panel, relay power supply, set on control panel
It is equipped with digital display screen, LED state indicator light, time adjustment key, digital display screen, LED state indicator light, time adjustment are pressed
Key is electrically connected with the time relay, and control switch is electrically connected with relay power supply.
Above-mentioned further includes shell, and the time relay, relay power supply, installation's power source are arranged in shell,
The control panel, control switch are installed on hull outside front, described to lead with what tested mutual inductor primary side was electrically connected
Line extends outside shell out of shell.
Tested mutual inductor described above is voltage transformer or current transformer.
Above-mentioned polarity display unit is ammeter, and ammeter is connected to the secondary side of tested mutual inductor by conducting wire.
Above-mentioned apparatus power supply is dry cell batteries, and relay power supply is lithium battery.
The utility model reasonable and compact in structure, by the working time of setting time relay, providing one kind can be certainly
The time controller of dynamic output pulse current, when work, only need a people that can complete the detection work of mutual inductor secondary polarity,
And the working time is greatly shortened, test errors rate is avoided to occur, improves power transformation station equipment power supply reliability, it is ensured that substation
Safe operation, has the characteristics that safe, laborsaving, easy, efficient.
Detailed description of the invention
Attached drawing 1 is the circuit connection diagram of the best embodiment of the utility model.
Attached drawing 2 is the operational flowchart of the best embodiment of the utility model.
Coding in attached drawing is respectively as follows: U1For installation's power source, U2For relay power supply, KT is time relay line
Circle, KT1For time relay normally closed contact, KT2For time relay normally open contact, T1To be tested mutual inductor primary side, T2For
Tested mutual inductor secondary side, ON is push button, and OFF is stop button, and A is ammeter.
Specific embodiment
The utility model is not limited by following embodiments, can technical solution according to the present utility model and actual conditions
Determine specific embodiment.
The utility model is further described below with reference to examples and drawings:
As shown in Fig. 1, the mutual inductor secondary polarity device for fast detecting, including time controller, polarity display unit,
Installation's power source U1, time controller includes the time relay, relay power supply U2, relay power supply U2With the time after
Electric apparatus coil KT electrical connection, installation's power source U1Output end, time relay normally open contact KT2The first binding post pass through and lead
Line and tested mutual inductor primary side T1Electrical connection, installation's power source U1Input terminal and the second binding post of time relay normally open contact
Electrical connection, polarity display unit and tested mutual inductor secondary side T2Electrical connection.
In actual work, it will connect in the intracorporal time relay normally open contact KT of shell2Conducting wire on first binding post is another
Terminate at tested mutual inductor primary side T1The first binding post on, will connect in the intracorporal installation's power source U of shell1Conducting wire on output end
It is another to terminate at tested mutual inductor primary side T1The second binding post on, polarity display unit anode and cathode be connected to
Tested mutual inductor secondary side T2Third binding post, on the 4th binding post；Relay power supply U2Give time relay coil KT
Power supply, after time relay coil KT electrification, the time relay normally open contact KT after preset time " N seconds "2It closes
It closes, installation's power source U1Tested mutual inductor primary side T is given by conducting wire1It is small to be converted to secondary side by tested mutual inductor ratio for power supply
Electric current is tested mutual inductor secondary side T2Judge whether secondary polarity is correct by the display result of polarity display unit.Due to
The time relay working time can be pre-set, does not need two staff while operating, and staff can be
Secondary side measures tested mutual inductor secondary polarity, substantially reduces the working time, avoids the generation of test errors.Here time
Relay can be electronic type HFE10-2 type relay.
Above-mentioned mutual inductor secondary polarity device for fast detecting can be made further optimization and/or improvements according to actual needs:
As needed, time controller further includes the control switch of control panel, relay power supply, on control panel
It is provided with digital display screen, LED state indicator light, time adjustment key, digital display screen, LED state indicator light, time adjustment
Key is electrically connected with the time relay, control switch and relay power supply U2Electrical connection.Control switch includes that " ON " connects
Lead to button and " OFF " stop button, be provided with digital display screen, LED state indicator light, time adjustment key on control panel,
Digital display screen shows time relay actuation time, and LED state indicator light has " Power ", " Relay " two lamps, time tune
Saving key includes " Set ", "+", "-".When pressing " ON " push button, relay power supply U2With the time relay
Coil KT wire loop is connected, relay power supply U2It powers to time relay coil KT, the time relay enters work
State presses " Set " key selection time relay operating mode, when increasing or decreasing time relay work by "+", "-"
Between " N seconds "；The time relay normally open contact KT after preset time " N seconds "2Closure, time relay normally closed contact
KT1It disconnects, engaging means power supply U1With mutual inductor primary side circuit loop, the time relay enters self-loopa operating mode；When pressing
Under " OFF " stop button when, block system relay power supply U2With the connection of time relay coil KT, the time relay
Coil KT is not charged, time relay normally open contact KT2It disconnects, time relay normally closed contact KT1Closure, disconnecting device power supply
U1With mutual inductor primary side circuit loop；" Power " is relay power supply indicator light, is always on and represents detection device and transporting
Row；" Relay " is time relay status indicator lamp, and the only setting time terminates, time relay normally open contact KT2Closure,
" Relay " lamp is bright, and then moment lamp goes out.The working condition of the time relay can be more intuitively seen from control panel, work people
Member can be adjusted at any time according to actual needs, and relay power supply control switch facilitates execute-in-place, does not need temporarily to connect
Line or plug battery, have ensured working efficiency.
As needed, mutual inductor secondary polarity device for fast detecting further includes shell, and the time relay, relay supply
Power supply U2, installation's power source U1It being arranged in shell, the control panel, control switch are installed on hull outside front,
Described and tested mutual inductor primary side T1The conducting wire of electrical connection extends outside shell out of shell.Mutual inductor secondary polarity is quickly examined
It surveys device to be integrated in shell, be convenient for carrying, the component of the inside is fixedly mounted, integrated level is high, avoids field connection and easily makes
At Miswire.Shell can choose aluminium conjunction by being made with surfacing, good thermal stability, on-deformable material
Gold is used as crust of the device.
As shown in Fig. 1, the tested mutual inductor is voltage transformer or current transformer.Mutual inductor secondary polarity is quick
Detection device can detect voltage transformer or Current Transformer Secondary is pendant polar.
As shown in Fig. 1, polarity display unit is ammeter A, and ammeter, which leads to A, to be crossed conducting wire to be connected to tested mutual inductor secondary
Side T2.Anode, the cathode of ammeter A passes through conducting wire respectively and connects in tested mutual inductor secondary side T2Third binding post, the 4th binding post
On.Lateral circuit of mutual inductor passes through mutual inductor ratio, and secondary side current is smaller, and ammeter A here is the electric current of milliampere grade
Table A, milliampere ammeter can more intuitively observe that pointer is biased to.
As shown in Fig. 1, installation's power source U1For dry cell batteries, relay power supply U2For lithium battery.Installation's power source U1For
Detection device provides working power, installation's power source U1The dry cell of optional tool on the market generally, relay power supply U2It gives
Time relay coil power supply, may be selected rechargeable lithium battery.
The above technical characteristic constitutes the most preferred embodiment of the utility model, with stronger adaptability and best implementation
Effect can increase and decrease non-essential technical characteristic, according to actual needs to meet the needs of different situations.
The use process of the best embodiment of the utility model: firstly, two conducting wires for extending shell out of shell are connected
It connects in tested mutual inductor primary side T1On first binding post, the second binding post, ammeter A anode, ammeter A cathode conductor are connected
It connects in tested mutual inductor secondary side T2On third binding post, the 4th binding post；Then, relay power supply U is pressed2Switch
" ON " button, relay KT coil charges at this time, and " Power " lamp length is bright；Pressing " Set " key setting time relay Working mould
Formula passes through "+", "-" key setting time relay working time " N seconds "；After " N seconds ", time relay normally open contact
KT2Closure, installation's power source U1It is powered with mutual inductor primary side closing of circuit, installation's power source U1To loop power supply, mutual inductor primary side
T1Electric current, the flashing of " Relay " lamp, time relay automatic circulating operation are generated, pulse current is generated, is become by tested mutual inductor
Than being converted to secondary side low current, it can determine whether secondary polarity whether just by ammeter A throw of pointer direction in secondary winding side
Really, if ammeter A pointer positively biased, then it represents that mutual inductor secondary side T2Polarity is correct, if ammeter A pointer is reverse-biased, then it represents that mutually
Sensor secondary side T2Incorrect polarity.
Claims (9)
1. a kind of mutual inductor secondary polarity device for fast detecting, it is characterised in that including time controller, polarity display unit, dress
Set power supply, time controller includes the time relay, relay power supply, relay power supply and time relay coil
Electrical connection, the output end of installation's power source, the first binding post of time relay normally open contact pass through conducting wire and tested mutual inductor
Primary side electrical connection, the input terminal of installation's power source are electrically connected with the second binding post of time relay normally open contact, and polarity display is single
It is first to be electrically connected with tested mutual inductor secondary side.
2. mutual inductor secondary polarity device for fast detecting according to claim 1, it is characterised in that time controller also wraps
Include the control switch of control panel, relay power supply, be provided on control panel digital display screen, LED state indicator light,
Time adjustment key, digital display screen, LED state indicator light, time adjustment key are electrically connected with the time relay, and control is opened
Pass is electrically connected with relay power supply.
3. mutual inductor secondary polarity device for fast detecting according to claim 2, it is characterised in that it further include shell, it is described
The time relay, relay power supply, installation's power source are arranged in shell, and the control panel, control switch are respectively mounted
On hull outside front, the conducting wire being electrically connected with tested mutual inductor primary side extends outside shell out of shell.
4. according to claim 1 to mutual inductor secondary polarity device for fast detecting described in 3 any one, it is characterised in that described
Tested mutual inductor is voltage transformer or current transformer.
5. according to claim 1 to mutual inductor secondary polarity device for fast detecting described in 3 any one, it is characterised in that polarity
Display unit is ammeter, and ammeter is connected to the secondary side of tested mutual inductor by conducting wire.
6. mutual inductor secondary polarity device for fast detecting according to claim 4, it is characterised in that polarity display unit is
Ammeter, ammeter are connected to the secondary side of tested mutual inductor by conducting wire.
7. mutual inductor secondary polarity device for fast detecting described according to claim 1 or 2 or 3 or 6, it is characterised in that device electricity
Source is dry cell batteries, and relay power supply is lithium battery.
8. mutual inductor secondary polarity device for fast detecting according to claim 4, it is characterised in that installation's power source is dry electricity
Pond group, relay power supply are lithium battery.
9. mutual inductor secondary polarity device for fast detecting according to claim 5, it is characterised in that installation's power source is dry electricity
Pond group, relay power supply are lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820907870.0U CN208350977U (en) | 2018-06-12 | 2018-06-12 | Mutual inductor secondary polarity device for fast detecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820907870.0U CN208350977U (en) | 2018-06-12 | 2018-06-12 | Mutual inductor secondary polarity device for fast detecting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208350977U true CN208350977U (en) | 2019-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820907870.0U Active CN208350977U (en) | 2018-06-12 | 2018-06-12 | Mutual inductor secondary polarity device for fast detecting |
Country Status (1)
| Country | Link |
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| CN (1) | CN208350977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594157A (en) * | 2018-06-12 | 2018-09-28 | 国网新疆电力有限公司伊犁供电公司 | Mutual inductor secondary polarity device for fast detecting |
-
2018
- 2018-06-12 CN CN201820907870.0U patent/CN208350977U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594157A (en) * | 2018-06-12 | 2018-09-28 | 国网新疆电力有限公司伊犁供电公司 | Mutual inductor secondary polarity device for fast detecting |
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