CN204595112U - One is once pressurizeed through-flow device and intelligent transformer substation system - Google Patents
One is once pressurizeed through-flow device and intelligent transformer substation system Download PDFInfo
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- CN204595112U CN204595112U CN201520165871.9U CN201520165871U CN204595112U CN 204595112 U CN204595112 U CN 204595112U CN 201520165871 U CN201520165871 U CN 201520165871U CN 204595112 U CN204595112 U CN 204595112U
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Abstract
The utility model relates to intelligent substation field, and especially one is once pressurizeed through-flow device and intelligent transformer substation system.The described through-flow device that once pressurizes comprises: the pressure regulator connected by circuit, Current Mutual Inductance type current lifting device and phase meter; The secondary terminals of current lifting device is used for being connected with the once end of the current transformer of intelligent substation, and be in series with standard current transformer in the secondary terminals of current lifting device, standard current transformer secondary terminals is connected with reometer; The output terminal of pressure regulator is used for being connected with the input end of the merge cells of intelligent substation, is connected with voltage table at the output terminal of pressure regulator; The electric current of phase meter is input as the secondary terminals of described standard current transformer, and the voltage of phase meter is input as the output terminal of self coupling and pressure regulator.Described intelligent transformer substation system comprises the above-mentioned through-flow device of once pressurization.Described intelligent transformer substation system can make intelligent substation check out wiring defect before charged, and can ensure the correct of loop and integrality.
Description
Technical field
The utility model relates to intelligent substation field, and especially one is once pressurizeed through-flow device and intelligent transformer substation system.
Background technology
In present stage, Intelligent transformer station was built, the mode generally taked is that conventional primary equipment and intelligent secondary device combine.Namely the primary equipment such as isolating switch, disconnector, mutual inductor adopts conventional electronic devices; by optical fiber, the secondary devices such as merge cells, intelligent terminal, the network switch, digital protection, observing and controlling, automation equipment are coupled together, realize the monitoring to whole station, measurement and protection.In the Installation and Debugging process of whole transformer station, for various reasons, following problem can be caused: current transformer dispatches from the factory error greatly, affects the collection of analog quantity; SV net produces mistake when networking; Optical cable damages when laying; Optical cable attenuation when welding increases; When stern fast is installed, flange damages; The device fails such as merge cells, switch.
Due to the existence of the problems referred to above, generally can test step by step in debug process, ensure that the problems referred to above can not occur as far as possible, after the installation of whole transformer station, need once to pressurize through-flow test, object is in order to verifying voltage current transformer polarity, no-load voltage ratio, ensures the correctness of full station SV network.When once pressurizeing through-flow test, need polarity, testing ratio be carried out, each protection, observing and controlling, metering therefore record, PMU, etc. relevant device observes current/voltage one sub-value, record amplitude and no-load voltage ratio.Once to pressurize at present and through-flow test is generally carry out respectively, can only verifying voltage mutual inductor summation current transformer no-load voltage ratio, the phase relation between voltage and current cannot be determined.Thus wiring defect and the correct integrality ensureing loop cannot be checked out before charged.
Summary of the invention
In view of this, the utility model provides one once to pressurize through-flow device, the power station that can effectively become intelligence carry out charged before check out wiring defect.
In order to achieve the above object, the utility model mainly provides following technical scheme:
Once being pressurizeed through-flow device by one, for debugging intelligent substation, comprising: the self coupling connected by circuit and pressure regulator, Current Mutual Inductance type current lifting device and phase meter;
The secondary terminals of described Current Mutual Inductance type current lifting device is used for being connected with the once end of the current transformer of described intelligent substation, be in series with standard current transformer in the secondary terminals of described Current Mutual Inductance type current lifting device, standard current transformer secondary terminals is connected with reometer;
The output terminal of described self coupling and pressure regulator is used for being connected with the input end of the merge cells of described intelligent substation, is connected with voltage table at the output terminal of described self coupling and pressure regulator, and described voltage table is used for monitoring the output voltage of described self coupling and pressure regulator;
The electric current of described phase meter is input as the secondary terminals of described standard current transformer, and the voltage of described phase meter is input as the output terminal of self coupling and pressure regulator.
In the above-mentioned through-flow device of once pressurization, described reometer is used for monitoring the primary current size of described Current Mutual Inductance type current lifting device reality.
In the above-mentioned through-flow device of once pressurization, the described through-flow device that once pressurizes also comprises starter gear, and two ends are connected with live wire and zero line respectively, and described starter gear comprises start button, reset button, zero position switch and the first contactor,
Wherein said start button and zero position switch are arranged in series, and described first contactor and described start button and zero position switch are arranged in parallel.
In the above-mentioned through-flow device of once pressurization, the described through-flow device that once pressurizes also comprises operating status display apparatus, two ends are connected with live wire and zero line respectively, and described operating status display apparatus comprises red light circuit and green light circuit, described red light circuit and green light lines in parallel;
Described red light circuit comprises red light and the second contactor,
Described green light circuit comprises green light and the 3rd contactor.
In the above-mentioned through-flow device of once pressurization, be provided with the 4th contactor at the live wire incoming end of the described through-flow device that once pressurizes;
In the above-mentioned through-flow device of once pressurization, be provided with the 5th contactor at the zero line incoming end of the described through-flow device that once pressurizes.
In the above-mentioned through-flow device of once pressurization, be provided with the first fuse at the live wire incoming end place of the described through-flow device that once pressurizes;
In the above-mentioned through-flow device of once pressurization, be provided with second circuit fuse at the zero line incoming end place of the described through-flow device that once pressurizes.
In the above-mentioned through-flow device of once pressurization, the described through-flow device of once pressurization also comprises the second current relay device and the 3rd current relay, wherein:
Described second current relay is arranged near zero line;
Described 3rd current relay is arranged near self coupling and pressure regulator.
The purpose of this utility model can also be achieved through the following technical solutions.
By the intelligent transformer substation system of one, comprising: the above-mentioned through-flow device of once pressurization and intelligent substation.
The control method of above-mentioned intelligent transformer substation system, comprises the steps:
The reading A of described reometer and the secondary device reading A1 of described intelligent substation compares; The reading B of described voltage table and the secondary device reading B1 of described intelligent substation compares; The reading C of described phase meter and the secondary device reading C1 of described intelligent substation compares;
If A=A1, C=C1, B=B1 be described intelligent substation no problem then, complete test process; If A ≠ A1 or C ≠ C1 or B ≠ B1, then progressively analyze investigation by result.
In the control method of above-mentioned intelligent transformer substation system, described investigation of progressively analyzing comprises:
During A ≠ A1, first merge cells display numerical value is checked, as merge cells display numerical value and reometer, to show numerical value consistent, then prove that merge cells arranges correctly, current mutual-inductor parameter is correct, as merge cells display numerical value and reometer, to show numerical value inconsistent, then check that merge cells arranges summation current transformer parameter, the wiring of current transformer, give to get rid of until merge cells reading is normal to abnormal conditions, other secondary device readings are checked after getting rid of, as exception, check the configuring condition of corresponding optical fiber and equipment, give to get rid of to abnormal conditions until reading display is normal,
When B and B1 is different, first merge cells display numerical value is checked, if merge cells display numerical value is B, then prove that merge cells arranges correctly, as merge cells display numerical exception, then check that merge cells is arranged, give to get rid of until merge cells reading is normal to abnormal conditions, check other secondary device readings after getting rid of, as exception, check the configuring condition of corresponding optical fiber and equipment, give to get rid of to abnormal conditions until reading display is normal;
When C and C1 is different, first ensure A=A1, B=B1, at this moment check merge cells reading, if merge cells reading is C, prove merge cells summation current transformer polarity is set and secondary connection correct, otherwise carry out the inspection of these several respects and get rid of, until merge cells reading is normal, after getting rid of, checking other secondary device readings, as exception, check corresponding optic fiber configureing and optimum configurations, get rid of abnormal conditions, until the display of all secondary device readings is all normal.
By technique scheme, the one that the utility model proposes through-flow device and preparation method thereof that once pressurizes at least has following advantages:
The utility model can make intelligent substation check out wiring defect before charged, and can ensure the correct of loop and integrality.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of instructions, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the electrical schematic diagram of the through-flow device that once pressurizes of the present utility model;
Fig. 2 is the structural representation of once pressurize through-flow device and intelligent substation of the present utility model.
Embodiment
For further setting forth the utility model for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to the embodiment of a kind of once pressurize through-flow device and the control method thereof that the utility model proposes, structure, feature and effect thereof, be described in detail as follows.In the following description, the not necessarily same embodiment that different " embodiment " or " embodiment " refers to.In addition, special characteristic, structure or feature in one or more embodiment can be combined by any suitable form.
Embodiment 1
As depicted in figs. 1 and 2, an embodiment of the present utility model discloses one and once to pressurize through-flow device, for debugging intelligent substation, comprising: the self coupling connected by circuit and pressure regulator 1, Current Mutual Inductance type current lifting device 2 and phase meter 6; The secondary terminals of described Current Mutual Inductance type current lifting device 2 is used for being connected with the once end of the current transformer 3 of described intelligent substation, be in series with standard current transformer 103 in the secondary terminals of described Current Mutual Inductance type current lifting device 2, standard current transformer 103 secondary terminals is connected with reometer 10; The output terminal 100 of described self coupling and pressure regulator 1 is connected for the input end of the merge cells 4 with described intelligent substation, be connected with voltage table 20 at the output terminal of described self coupling and pressure regulator 1, described voltage table 20 is used for monitoring the output voltage of described self coupling and pressure regulator 1; The electric current of described phase meter 6 is input as the secondary terminals of described standard current transformer 103, and the voltage of described phase meter 6 is input as the output terminal of self coupling and pressure regulator 1.
Particularly, described reometer 10 is used for monitoring the primary current size of described Current Mutual Inductance type current lifting device 2 reality.
During concrete enforcement, described self coupling is connected with zero line with the input end of pressure regulator 1, and the once end of described Current Mutual Inductance type current lifting device 2 is connected with live wire.
During concrete enforcement, the described through-flow device that once pressurizes also comprises starter gear, two ends are connected with live wire and zero line respectively, described starter gear comprises start button 71, reset button 9, zero position switch 72 and the first contactor 11, wherein said start button 71 and zero position switch 72 are arranged in series, and described first contactor 11 is arranged in parallel with described start button 71 and zero position switch 72.
During concrete enforcement, the described through-flow device that once pressurizes also comprises operating status display apparatus, and two ends are connected with live wire and zero line respectively, and described operating status display apparatus comprises red light circuit and green light circuit, described red light circuit and green light lines in parallel; Described red light circuit comprises red light 31 and the second contactor 12, and described green light circuit comprises green light 32 and the 3rd contactor 13.
During concrete enforcement, be provided with the 4th contactor 14 at the live wire incoming end of the described through-flow device that once pressurizes.The 5th contactor 15 is provided with at the zero line incoming end of the described through-flow device that once pressurizes.Charged and when pressing start button 71,220V voltage is received on the primary winding of self coupling and pressure regulator 1 by the 4th contactor 14, the 5th contactor 15 at L, N two ends, for regulation voltage and electric current ready.
Power supply access failure or under not pressing start button 71 situation, reset button 9 is connected, start button 71 disconnects, and the first contactor 11, second contactor 12, the 4th contactor 14, the 5th contactor 15 disconnect, and the 3rd contactor 13 is connected.
Self coupling and pressure regulator 1 zero-bit state namely non-regulation output time, zero position switch 72 is connected, and prevents self coupling and pressure regulator 1 from exporting uncontrollable voltage instantaneously switching on power, causes testing crew or damaged by testing equipment overload.
At AC power connection and L, N two under end band alternating current 220V power supply status, green light 32 is lighted by the 3rd contactor 13.Press start button 71, now, 220V AC power is added on contactor KM coil, and the first contactor 11, second contactor 12, the 3rd contactor 13, the 4th contactor 14, the 5th contactor 15 action are contrary when state and access failure power supply.Green light 32 extinguishes, and red light 31 is lighted by the second contactor 12, voltage by the 4th contactor 14, the 5th contactor 15 is added to self coupling and pressure regulator 1 is once held.Contactor KM coil keeps "on" position by the first contactor 11, and now unclamp start button 71, contactor is action still.
During concrete enforcement, the described through-flow device that once pressurizes also comprises reset button 9.Reset button 9 series connection is linked in the starting-up later time of contactor KM coil, is often on-state.Press after test completes, cut off contactor KM coil power, the first contactor 11, second contactor 12, the 3rd contactor 13, the 4th contactor 14, the 5th contactor 15 is made to return to state when not being energized, namely red light 31 extinguishes, green light 32 is lighted, self coupling and pressure regulator 1 primary winding lose power supply, makes device be in charged state to be launched.
The described through-flow device that once pressurizes can make intelligent substation check out wiring defect before charged, and can ensure the correct of loop and integrality.This device is for transformer substation voltage mutual inductor rated secondary voltage, between electric current and voltage, phase relation designs, adopt Current Mutual Inductance type current lifting device 2 as main element, utilize electromagnetic induction principle, be standard angle by the angle between field voltage and induction current, induction current is normalized current, field voltage is normal voltage, voltage is added to merge cells 4 input end, electric current is added to each spacing current mutual inductor respectively by current output terminal 101, current output terminal is received and respectively once to be held by test spacing current mutual inductor, Current Transformer Secondary terminates to merge cells.
Observe each secondary device displayed value, itself and standard value are compared, the final correctness ensureing no-load voltage ratio and polarity, this device is also applicable to the once pressurization of conventional substation and through-flow simultaneously.Utilize self coupling and pressure regulator 1 to regulate field voltage analog voltage mutual inductor secondary voltage, and monitor with digital voltmeter 20, high precision current transformer is utilized to coordinate digital electronic ammeter 10 to monitor induction current size, voltage and current is added on digital phase meter 6 and monitors standard phase angle, standard current transformer adopts multirange design, to adapt to the induction current of different size, voltage and current table 10 is multifunctional meter, no-load voltage ratio all can be arranged at the scene, ensure that the wide region usability of package unit.
Come to divide station equipment from the angle completing function work of transformer substation, primary device and secondary device can be divided into again.The former is the equipment of direct production, converting electrical energy, as: the equipment such as power transformer, high-voltage switch gear; The utility appliance that the latter monitors primary device, measure, control, protect, regulate, as: all kinds of protective device, aut.eq. etc.
Current transformer is the low-voltage of standard, a kind of special transformation device of standard small area analysis by the information conversion of electrical network high voltage, big current, it is the contact element of primary system and electrical secondary system, effect be when electric system break down or abnormal work situation time, automatically faulty equipment is excised from system within shortest time in the cards and Minimum Area, or provide signal is eliminated abnormal conditions root by operator on duty, with the impact alleviated or avoid the damage of equipment and power on adjoining area, improve power supply reliability, reduce unnecessary economic loss.
Further, the first fuse 81 is provided with at the live wire incoming end place of the described through-flow device that once pressurizes; Second circuit fuse 82 is provided with at the zero line incoming end place of the described through-flow device that once pressurizes.
Because there is alternating current 220V voltage at L, N two ends; very large short-circuit current can be produced when traffic lights 32, self coupling and pressure regulator T, KM coil are short-circuited fault; in order to protection circuit is not burnt; install the first fuse 81 and second circuit fuse 82 fuse additional; when being short-circuited barrier, first blowout carrys out deenergization; power supply also, after getting rid of, could add by looking up the fault reason again.Two-way fuse is in order to for subsequent use mutually, cannot play the effect of protection circuit when avoiding a road fuse to lose efficacy.
During concrete enforcement, the described through-flow device that once pressurizes also comprises the second current relay 22 and the 3rd current relay 23, wherein: described second current relay 22 is arranged near zero line; Described 3rd current relay 23 is arranged near self coupling and pressure regulator 1.Second current relay 22 is connected when normal work, enables contactor KM coil receive alternating current 220V voltage when starting.3rd current relay 23 is series-connected to the input coil loop of self coupling and pressure regulator 1, effect be when self coupling and pressure regulator 1 coil turn-to-turn short circuit or adjustment output current excessive time, 3rd current relay 23 action, second current relay 22 is opened, thus disconnect the starting-up later time of contactor KM, device is returned to be energized non-starting state.
Embodiment 2
One intelligence transformer substation system as shown in Figure 2, comprising: the through-flow device of once pressurization in above-described embodiment and intelligent substation.
The control method of described intelligent transformer substation system, comprises the steps:
The reading A of described reometer 10 compares with the secondary device 5 reading A1 of described intelligent substation; The reading B of described voltage table 20 compares with the secondary device 5 reading B1 of described intelligent substation; The reading C of described phase meter 6 compares with the secondary device 5 reading C1 of described intelligent substation.If A=A1, C=C1, B=B1 be described intelligent substation no problem then, complete test process; If A ≠ A1 or C ≠ C1 or B ≠ B1, then progressively analyze investigation by result.
Merge cells is the key equipment that electric signal is converted to light signal; its electric signal that mutual inductor is sent here is according to protection, metering, observing and controlling therefore the needs of the secondary devices such as record; transmitted by optical fiber; because the technical requirement of these equipment is different; the connection of optical fiber is also distinguished to some extent; therefore need to move towards planning to optical fiber, also cry configuration.Similar with merge cells, when each secondary device dispatches from the factory, parameter is all acquiescence, for adapting to different occasion, different object, needing to carry out different being configured to running parameter and making it correctly work.
Described investigation of progressively analyzing comprises:
During A ≠ A1, first check that merge cells 4 shows numerical value, will notebook computer and the merge cells connecting communication of full station configuration file be imported, and start merge cells debugging software, read merge cells reading and compare with reometer reading.
The numerical value of merge cells display is the current value of Current Transformer Secondary.Merge cells parameter when dispatching from the factory is default configuration, needs to be configured to respectively merge cells is correctly worked to each running parameter for different use occasion, different object.
As merge cells 4 shows numerical value and reometer, to show numerical value consistent, then prove that merge cells 4 is arranged correctly, current mutual-inductor parameter is correct, as merge cells 4 shows numerical value and reometer, to show numerical value inconsistent, then check that merge cells 4 arranges the wiring of summation current transformer parameter, current transformer, give to get rid of until merge cells 4 reading is normal to abnormal conditions, other secondary device 5 readings are checked after getting rid of, as exception, check the configuring condition of corresponding optical fiber and equipment, give to get rid of to abnormal conditions until reading A=A1, B=B1, C=C1 display is normal;
When B and B1 is different, first check that merge cells 4 shows numerical value, be B as merge cells 4 shows numerical value, then prove that merge cells 4 arranges correctly, as merge cells 4 shows numerical exception, then check merge cells 4 arrange, to abnormal conditions give get rid of until merge cells 4 current indication, voltage readings, phase place reading and reometer, voltage table, phase meter, merge cells, the corresponding electric current of secondary device, voltage.Phase place display numerical value.
Reading is normal, checks other secondary device 5 readings, as exception, check the configuring condition of corresponding optical fiber and equipment after getting rid of, and gives to get rid of until reading display is normal to abnormal conditions;
Abnormal conditions refer to that merge cells parameter configuration error, mutual inductor are to merge cells cabling error, secondary device parameter configuration error, merge cells to secondary device Fiber connection mistake, the incorrect duty that reason causes such as optical fiber interface is dirty, optical fiber fractures.
When C and C1 is different, first A=A1 is ensured, B=B1, at this moment merge cells 4 reading is checked, if merge cells 4 reading is C, prove merge cells 4 summation current transformer polarity is set and secondary connection correct, secondary connection refers to the cable connection between the company between current transformer and merge cells, otherwise carry out the inspection of these several respects and get rid of, until merge cells 4 reading is normal, other secondary device 5 readings are checked after getting rid of, as exception, check corresponding optic fiber configureing and optimum configurations, get rid of abnormal conditions, until all secondary device 5 reading displays are all normal.Secondary device optimum configurations refers to make secondary device can correctly work in different occasion, different object situation, to the corresponding configuration that its running parameter carries out.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, the any simple modification done above embodiment according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (8)
1. once pressurize a through-flow device, for debugging intelligent substation, it is characterized in that comprising: the self coupling connected by circuit and pressure regulator, Current Mutual Inductance type current lifting device and phase meter;
The secondary terminals of described Current Mutual Inductance type current lifting device is used for being connected with the once end of the current transformer of described intelligent substation, be in series with standard current transformer in the secondary terminals of described Current Mutual Inductance type current lifting device, standard current transformer secondary terminals is connected with reometer;
The output terminal of described self coupling and pressure regulator is used for being connected with the input end of the merge cells of described intelligent substation, is connected with voltage table at the output terminal of described self coupling and pressure regulator, and described voltage table is used for monitoring the output voltage of described self coupling and pressure regulator;
The electric current of described phase meter is input as the secondary terminals of described standard current transformer, and the voltage of described phase meter is input as the output terminal of self coupling and pressure regulator.
2. the through-flow device that once pressurizes according to claim 1, is characterized in that,
Described reometer is used for monitoring the primary current size of described Current Mutual Inductance type current lifting device reality.
3. the through-flow device that once pressurizes according to claim 1, is characterized in that,
Also comprise starter gear, two ends are connected with live wire and zero line respectively, and described starter gear comprises start button, reset button, zero position switch and the first contactor,
Wherein said start button and zero position switch are arranged in series, and described first contactor and described start button and zero position switch are arranged in parallel.
4. the through-flow device that once pressurizes according to claim 1, is characterized in that,
Also comprise operating status display apparatus, two ends are connected with live wire and zero line respectively, and described operating status display apparatus comprises red light circuit and green light circuit, described red light circuit and green light lines in parallel;
Described red light circuit comprises red light and the second contactor,
Described green light circuit comprises green light and the 3rd contactor.
5. the through-flow device that once pressurizes according to claim 4, is characterized in that,
The 4th contactor is provided with at the live wire incoming end of the described through-flow device that once pressurizes;
The 5th contactor is provided with at the zero line incoming end of the described through-flow device that once pressurizes.
6. the through-flow device that once pressurizes according to any one of claim 1 to 5, is characterized in that,
The first fuse is provided with at the live wire incoming end place of the described through-flow device that once pressurizes;
Second circuit fuse is provided with at the zero line incoming end place of the described through-flow device that once pressurizes.
7. the through-flow device that once pressurizes according to claim 1, is characterized in that, also comprises the second current relay device and the 3rd current relay, wherein:
Described second current relay is arranged near zero line;
Described 3rd current relay is arranged near self coupling and pressure regulator.
8. an intelligent transformer substation system, is characterized in that, comprising: the through-flow device of once pressurization according to any one of claim 1 to 7 and intelligent substation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520165871.9U CN204595112U (en) | 2015-03-23 | 2015-03-23 | One is once pressurizeed through-flow device and intelligent transformer substation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520165871.9U CN204595112U (en) | 2015-03-23 | 2015-03-23 | One is once pressurizeed through-flow device and intelligent transformer substation system |
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| CN204595112U true CN204595112U (en) | 2015-08-26 |
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| CN201520165871.9U Withdrawn - After Issue CN204595112U (en) | 2015-03-23 | 2015-03-23 | One is once pressurizeed through-flow device and intelligent transformer substation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749461A (en) * | 2015-03-23 | 2015-07-01 | 国家电网公司 | Primary pressurizing through-flow device, intelligent transformer system and control method thereof |
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- 2015-03-23 CN CN201520165871.9U patent/CN204595112U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104749461A (en) * | 2015-03-23 | 2015-07-01 | 国家电网公司 | Primary pressurizing through-flow device, intelligent transformer system and control method thereof |
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