CN104749461B - One kind is once pressurizeed through-flow device, intelligent transformer substation system and its control method - Google Patents
One kind is once pressurizeed through-flow device, intelligent transformer substation system and its control method Download PDFInfo
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- CN104749461B CN104749461B CN201510127827.3A CN201510127827A CN104749461B CN 104749461 B CN104749461 B CN 104749461B CN 201510127827 A CN201510127827 A CN 201510127827A CN 104749461 B CN104749461 B CN 104749461B
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Abstract
The present invention relates to intelligent substation field, especially a kind of through-flow device that once pressurizes, intelligent transformer substation system and its control method.The through-flow device that once pressurizes includes：Pressure regulator, Current Mutual Inductance type current lifting device and the phase meter connected by circuit；The secondary terminals of current lifting device are used to connect with the primary end of the current transformer of intelligent substation, are in series with standard current transformer in the secondary terminals of current lifting device, standard current transformer secondary terminals are connected with ammeter；The output end of pressure regulator is connected with voltmeter for being connect with the input terminal of the combining unit of intelligent substation in the output end of pressure regulator；The electric current input of phase meter is the secondary terminals of the standard current transformer, and the control source of phase meter is the output end of self coupling and pressure regulator.The intelligence transformer substation system includes the above-mentioned through-flow device of once pressurization.The control method of the intelligence transformer substation system can make intelligent substation check wiring defect before electrification, and can guarantee the correct and integrality in circuit.
Description
Technical field
The present invention relates to intelligent substation field, especially a kind of through-flow device that once pressurizes, intelligent transformer substation system and its
Control method.
Background technology
In the construction of Intelligent transformer station at this stage, the mode generally taken is conventional primary equipment and intelligent secondary device
In conjunction with.I.e. the primary equipments such as breaker, disconnecting switch, mutual inductor use conventional electronic devices, by optical fiber by combining unit, intelligence
The secondary devices such as energy terminal, the network switch, digital protection, observing and controlling, automation equipment connect, and realize the prison to whole station
Control, measurement and protection.During the installation and debugging of whole transformer station, for various reasons, problems with can be caused：Electric current is mutual
Sensor manufacture error is big, influences the acquisition of analog quantity；SV nets generate mistake in networking；Optical cable is damaged in laying；Optical cable exists
Attenuation increases when welding；Flange damages when stern fast is installed；The device fails such as combining unit, interchanger.
Due to the above problems, can generally test step by step in debugging process, ensure the above problem not as possible
It can occur, after installation is complete in whole transformer station, need to carry out the through-flow test that once pressurizes, in order to verifying voltage electric current
Mutual inductor polarity, no-load voltage ratio ensure the correctness of whole station SV networks.When carrying out primary pressurization through-flow test, polarity need to be carried out, become
Than checking, each protection, observing and controlling, metering therefore record, PMU, etc. observe one sub-value of Current Voltage on relevant devices, record amplitude with
No-load voltage ratio.Primary pressurization is carried out at present and through-flow test usually carries out respectively, is able to validate only voltage transformer and current transformer
No-load voltage ratio, the phase relation between voltage and current can not determine.To check wiring defect before electrification and ensure back
The correct integrality on road.
Invention content
In view of this, the present invention provides a kind of through-flow device that once pressurizes, effectively the power station intelligently become can be carried out
Wiring defect is checked before electrification.
In order to achieve the above object, present invention generally provides following technical solutions：
By a kind of through-flow device that once pressurizes, include for carrying out debugging to intelligent substation：It is connected by circuit
Self coupling and pressure regulator, Current Mutual Inductance type current lifting device and phase meter；
The secondary terminals of the Current Mutual Inductance type current lifting device are for primary with the current transformer of the intelligent substation
End connection, standard current transformer, standard current transformer two are in series in the secondary terminals of the Current Mutual Inductance type current lifting device
Secondary end is connected with ammeter；
The output end of the self coupling and pressure regulator is used to connect with the input terminal of the combining unit of the intelligent substation,
The output end of the self coupling and pressure regulator is connected with voltmeter, and the voltmeter is used for monitoring the output of the self coupling and pressure regulator
Voltage；
The electric current input of the phase meter is the secondary terminals of the standard current transformer, the control source of the phase meter
For the output end of self coupling and pressure regulator.
In the above-mentioned through-flow device of once pressurization, the ammeter is used for monitoring that the Current Mutual Inductance type current lifting device is practical
Primary current size.
In the above-mentioned through-flow device of once pressurization, the through-flow device that once pressurizes further includes starter, both ends difference
It being connect with firewire and zero curve, the starter includes start button, reset button, zero position switch and first contactor,
The wherein described start button and zero position switch are arranged in series, the first contactor and the start button and zero-bit
Switch in parallel is arranged.
In the above-mentioned through-flow device of once pressurization, the through-flow device that once pressurizes further includes operating status display apparatus,
Both ends are connect with firewire and zero curve respectively, and the operating status display apparatus includes red light circuit and green light circuit, the red light
Circuit and green light lines in parallel；
The red light circuit includes red light and second contactor,
The green light circuit includes green light and third contactor.
In the above-mentioned through-flow device of once pressurization, connect equipped with the 4th in the firewire incoming end of the through-flow device that once pressurizes
Tentaculum；
In the above-mentioned through-flow device of once pressurization, connect equipped with the 5th in the zero curve incoming end of the through-flow device that once pressurizes
Tentaculum.
In the above-mentioned through-flow device of once pressurization, first is equipped at the firewire incoming end of the through-flow device that once pressurizes
Fuse；
In the above-mentioned through-flow device of once pressurization, second is equipped at the zero curve incoming end of the through-flow device that once pressurizes
Fuse.
In the above-mentioned through-flow device of once pressurization, the through-flow device of once pressurization further includes the second electric current relay device
With third electric current relay, wherein：
Second electric current relay is arranged close to zero curve；
The third electric current relay is arranged close to self coupling and pressure regulator.
The purpose of the present invention can also be achieved through the following technical solutions.
By a kind of intelligent transformer substation system, including：The above-mentioned through-flow device of once pressurization and intelligent substation.
The control method of above-mentioned intelligent transformer substation system, includes the following steps：
The reading A of the ammeter is compared with the secondary device of intelligent substation reading A1；The voltmeter
The secondary device reading B1 of reading B and the intelligent substation be compared；The reading C of the phase meter becomes with the intelligence
The secondary device reading C1 in power station is compared；
If A=A1, C=C1, the B=B1 then intelligent substation no problem complete test process；If A ≠ A1 or C ≠ C1
Or B ≠ B1, then investigation is gradually analyzed by result.
In above-mentioned control method, the gradually analysis investigation includes：
It when A ≠ A1, first checks for combining unit and shows numerical value, as combining unit shows that numerical value shows numerical value one with ammeter
It causes, then proves that combining unit setting is correct, current mutual-inductor parameter is correct, as combining unit shows that numerical value shows number with ammeter
Be worth it is inconsistent, then check combining unit setting and current mutual-inductor parameter, current transformer wiring, abnormal conditions are given and are arranged
Except being read normally up to combining unit, checks that other secondary devices are read after exclusion, such as exception, check corresponding optical fiber and equipment
Configuring condition, give exclusion to abnormal conditions until reading display is normal；
It when B is with B1 differences, first checks for combining unit and shows numerical value, if combining unit shows that numerical value is B, then prove to merge
Unit setting is correct, if combining unit shows numerical exception, then checks that combining unit is arranged, give exclusion to abnormal conditions until
Combining unit reading is normal, checks that other secondary devices are read after exclusion, such as abnormal, checks the configuration of corresponding optical fiber and equipment
Situation gives exclusion until reading display is normal to abnormal conditions；
When C is with C1 differences, ensure A=A1, B=B1 first, at this moment check combining unit reading, as combining unit reading is
C, it was demonstrated that combining unit setting and current transformer polarity and secondary connection are correct, otherwise carry out the inspection of this several respect and progress
It excludes, until combining unit reading is normal, checks that other secondary devices are read after exclusion, it is such as abnormal, check corresponding optic fiber configureing
And parameter setting, abnormal conditions are excluded, until the reading display of all secondary devices is normal.
By above-mentioned technical proposal, one kind proposed by the present invention through-flow device and preparation method thereof that once pressurizes at least has
Following advantages：
The present invention can make intelligent substation check wiring defect before electrification, and can guarantee the correct and complete of circuit
Property.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, below with presently preferred embodiments of the present invention and after coordinating attached drawing to be described in detail such as.
Description of the drawings
Fig. 1 is the electrical schematic diagram of the through-flow device that once pressurizes of the present invention；
Fig. 2 is the structural schematic diagram of once pressurize through-flow device and the intelligent substation of the present invention.
Specific implementation mode
It is of the invention to reach the technological means and effect that predetermined goal of the invention is taken further to illustrate, below in conjunction with
Attached drawing and preferred embodiment, the specific implementation to a kind of once pressurize through-flow device and its control method that propose according to the present invention
Mode, structure, feature and its effect are described in detail as after.In the following description, different " embodiment " or " embodiment " refers to
Be not necessarily the same embodiment.In addition, the special characteristic, structure or feature in one or more embodiments can be by any suitable
Form combines.
Embodiment 1
As depicted in figs. 1 and 2, one embodiment of the invention discloses a kind of through-flow device that once pressurizes, for intelligence
Substation is debugged, including：Self coupling and pressure regulator 1, the Current Mutual Inductance type current lifting device 2 and phase meter 6 connected by circuit；
The secondary terminals of the Current Mutual Inductance type current lifting device 2 are used to connect with the primary end of the current transformer 3 of the intelligent substation,
It is in series with standard current transformer 103, standard current transformer 103 2 in the secondary terminals of the Current Mutual Inductance type current lifting device 2
Secondary end is connected with ammeter 10；The output end 100 of the self coupling and pressure regulator 1 is for the combining unit with the intelligent substation
4 input terminal connection is connected with voltmeter 20 in the output end of the self coupling and pressure regulator 1, and the voltmeter 20 is used for monitoring
The output voltage of the self coupling and pressure regulator 1；The electric current input of the phase meter 6 is the two of the standard current transformer 103
Secondary end, the control source of the phase meter 6 are the output end of self coupling and pressure regulator 1.
Specifically, the ammeter 10 is used for monitoring 2 actual primary current size of the Current Mutual Inductance type current lifting device.
When it is implemented, the input terminal of the self coupling and pressure regulator 1 is connect with zero curve, the Current Mutual Inductance type current lifting device 2
It is primary end connect with firewire.
When it is implemented, the through-flow device that once pressurizes further includes starter, both ends connect with firewire and zero curve respectively
It connects, the starter includes start button 71, reset button 9, zero position switch 72 and first contactor 11, wherein the startup
Button 71 and zero position switch 72 are arranged in series, the first contactor 11 and the start button 71 and zero position switch 72 is in parallel sets
It sets.
When it is implemented, the through-flow device that once pressurizes further includes operating status display apparatus, both ends respectively with firewire
It is connected with zero curve, the operating status display apparatus includes red light circuit and green light circuit, the red light circuit and green light circuit
It is in parallel；The red light circuit includes red light 31 and second contactor 12, and the green light circuit includes green light 32 and third contactor
13。
When it is implemented, the firewire incoming end in the through-flow device that once pressurizes is equipped with the 4th contactor 14.Described
Once pressurize through-flow device zero curve incoming end be equipped with the 5th contactor 15.When the both ends L, N are charged and press start button 71,
220V voltages are connected to by the 4th contactor 14, the 5th contactor 15 on the primary coil of self coupling and pressure regulator 1, to adjust voltage
It is ready with electric current.
Power supply access failure or in the case of not pressing start button 71, reset button 9 is connected, and start button 71 disconnects, and first
Contactor 11, second contactor 12, the 4th contactor 14, the 5th contactor 15 disconnect, and third contactor 13 is connected.
When zero-bit state does not adjust output, zero position switch 72 is connected, and self coupling and pressure regulator are prevented for self coupling and pressure regulator 1
1 is powering on the uncontrollable voltage of moment output, causes testing crew or is damaged by testing equipment overload.
In the case where AC power is connected and is the both ends L, N band alternating current 220V power supply status, green light 32 passes through 13 points of third contactor
It is bright.Start button 71 is pressed, at this point, 220V AC powers are added on contactor KM coils, first contactor 11, second contactor
12, third contactor 13, the 4th contactor 14, the action of the 5th contactor 15, it is opposite when state is with access failure power supply.Green light 32 is put out
It goes out, red light 31 is lighted by second contactor 12, and voltage is added to self coupling and pressure regulation by the 4th contactor 14, the 5th contactor 15
Device 1 is once held.Contactor KM coils remain powered on state by first contactor 11, unclamp start button 71, contactor at this time
Still it acts.
When it is implemented, the through-flow device that once pressurizes further includes reset button 9.The series connection of reset button 9 is linked into
Often it is on-state in the starting-up later time of tentaculum KM coils.It is pressed after the completion of experiment, cuts off contactor KM coil powers, make
First contactor 11, second contactor 12, third contactor 13, the 4th contactor 14, the 5th contactor 15 are restored to and are not powered on
When state, i.e., red light 31 extinguish, green light 32 is lighted, self coupling and 1 primary coil of pressure regulator lose power supply, make device be in electrification wait for
Starting state.
The through-flow device that once pressurizes can make intelligent substation check wiring defect before electrification, and can guarantee back
The correct and integrality on road.The present apparatus is directed to phase relation between transformer substation voltage mutual inductor rated secondary voltage, voltage and current
It is designed, main element is used as using Current Mutual Inductance type current lifting device 2, using electromagnetic induction principle, by excitation voltage and sense
Angle between induced current is standard angle, and induced current is normalized current, and excitation voltage is normal voltage, applies voltages to conjunction
And 4 input terminal of unit, electric current are added separately to each spacing current mutual inductor by current output terminal 101, current output terminal is connected to respectively
It is once held by experiment spacing current mutual inductor, Current Transformer Secondary terminates to combining unit.
Each secondary device show value is observed, it is compared with standard value, it is final to ensure no-load voltage ratio and polar correctness,
The device simultaneously be also applied for conventional substation it is primary pressurization with it is through-flow.Excitation voltage is adjusted using self coupling and pressure regulator 1
Analog voltage mutual inductor secondary voltage, is used in combination digital voltmeter 20 to be monitored, coordinates number using high precision current transformer
Ammeter 10 monitors that induced current size, voltage and current are added to monitoring standard phase angle, normalized current mutual inductance on digital phase meter 6
Device is designed using multrirange, and to adapt to different size of induced current, voltage and current table 10 is multifunctional meter, and no-load voltage ratio can be
Scene is configured, and ensure that the wide scope performance of package unit.
The angle that function is completed from work of transformer substation to divide station equipment, and can be divided into primary device and secondary
Device.The former is directly to produce, the equipment of converting electrical energy, such as：The equipment such as power transformer, high-voltage switch gear；The latter is to once filling
The ancillary equipment be monitored, measure, controlling, protecting, adjusting is set, such as：All kinds of protective devices, automatic device etc..
Current transformer is that electrical network high voltage, the information of high current are transformed to the low-voltage of standard, standard small electric current
A kind of special transformation device, is the contact element of primary system and electrical secondary system, and effect is when electric system is broken down or abnormal
When working condition, faulty equipment is cut off from system automatically within shortest time in the cards and Minimum Area, or gives
Go out the root that signal is eliminated abnormal conditions by operator on duty, with the shadow that the damage of equipment is alleviated or avoided and powers to adjoining area
It rings, improves power supply reliability, reduce unnecessary economic loss.
Further, the first fuse 81 is equipped at the firewire incoming end of the through-flow device that once pressurizes；
Second circuit fuse 82 is equipped at the zero curve incoming end of the through-flow device that once pressurizes.
Since there is alternating current 220V voltage at the both ends L, N, when short trouble occurs for traffic lights 32, self coupling and pressure regulator T, KM coil
When will produce very big short circuit current, in order to which protection circuit is not burned out, install the first fuse 81 and second circuit additional
82 fuse of fuse, when short circuit barrier occurs, blowout first carrys out deenergization, after searching failure cause and excluding,
Power supply can be added again.Two-way fuse be in order to mutually it is spare, avoid all the way fuse failure when can not play protection electricity
The effect on road.
When it is implemented, the through-flow device that once pressurizes further includes the second electric current relay 22 and third electric current relay
23, wherein：Second electric current relay 22 is arranged close to zero curve；The third electric current relay 23 is close to self coupling and pressure regulator
1 setting.Second electric current relay 22 is connected in normal work, makes contactor KM coils that can receive alternating current 220V on startup
Voltage.Third electric current relay 23 is series-connected to the input coil circuit of self coupling and pressure regulator 1, and effect is to work as self coupling and pressure regulator
When 1 coil turn-to-turn short circuit or excessive adjustment output current, third electric current relay 23 acts, and the second electric current relay 22 is made to beat
It opens, to disconnect the starting-up later time of contactor KM, device is made to be restored to energization inactive state.
Embodiment 2
A kind of intelligent transformer substation system as shown in Figure 2, including：The through-flow device of once pressurization in above-described embodiment and intelligence
Substation.
The control method of the intelligent transformer substation system, includes the following steps：
Compared with the reading A of the ammeter 10 reads A1 with the secondary device 5 of the intelligent substation；The voltmeter 20
Reading B and the intelligent substation the reading of secondary device 5 B1 compared with；The reading C of the phase meter 6 and the intelligent power transformation
The secondary device 5 stood reads C1 and compares.If then the intelligent substation no problem, completion were tested by A=A1, C=C1, B=B1
Journey；If A ≠ A1 or C ≠ C1 or B ≠ B1 is gradually analyzed investigation by result.
Combining unit is the key equipment that electric signal is converted to optical signal, and the electric signal that it sends mutual inductor is according to guarantor
Shield, metering, observing and controlling thus record etc. secondary devices needs, be transmitted by optical fiber because these equipment technology require not
Together, the connection of optical fiber also different from, it is therefore desirable to planning be moved towards to optical fiber, also cry configuration.It is similar with combining unit, it is each secondary
Parameter is all acquiescence when equipment is dispatched from the factory, and to adapt to different occasions, different objects, needs to carry out running parameter different configurations
So that its correct work.
The gradually analysis, which is investigated, includes：
It when A ≠ A1, first checks for combining unit 4 and shows numerical value, laptop and the conjunction of whole station configuration file will be imported
And unit connecting communication, start combining unit debugging software, reads combining unit and read and be compared with electric current meter reading.
The numerical value that combining unit is shown is the current value of Current Transformer Secondary.Combining unit parameter in manufacture is acquiescence
Configuration is respectively configured so that combining unit can be just each running parameter for different use occasions, different object needs
Really work.
If combining unit 4 shows that numerical value shows that numerical value is consistent with ammeter, then prove that correct, electric current is arranged in combining unit 4
Transformer parameter is correct, if combining unit 4 shows that numerical value shows that numerical value is inconsistent with ammeter, then checks that combining unit 4 is arranged
With the wiring of current mutual-inductor parameter, current transformer, abnormal conditions are given and exclude to read normally up to combining unit 4, row
Check that other secondary devices 5 are read after removing, it is such as abnormal, it checks corresponding optical fiber and the configuring condition of equipment, abnormal conditions is given
Exclusion is given until reading A=A1, B=B1, C=C1 are shown normally；
It when B is with B1 differences, first checks for combining unit 4 and shows numerical value, if combining unit 4 shows that numerical value is B, then prove to close
And unit 4 is arranged correctly, if combining unit 4 shows numerical exception, then checks that combining unit 4 is arranged, gives and arrange to abnormal conditions
Except until 4 current indication of combining unit, voltage readings, phase place reading, that is, ammeter, voltmeter, phase meter, combining unit, secondary
The corresponding electric current of equipment, voltage.Phase shows numerical value.
Reading is normal, checks that other secondary devices 5 are read after exclusion, such as abnormal, checks matching for corresponding optical fiber and equipment
Situation is set, gives exclusion to abnormal conditions until reading display is normal；
Abnormal conditions refer to combining unit parameter configuration error, mutual inductor to combining unit cabling error, secondary set
Standby parameter configuration error, combining unit to secondary device optical fiber connection error, optical fiber interface is dirty, optical fiber fractures etc., and reasons cause
Incorrect working condition.
When C is with C1 differences, ensure A=A1, B=B1 first, at this moment check that combining unit 4 is read, as combining unit 4 is read
For C, it was demonstrated that the setting of combining unit 4 and current transformer polarity and secondary connection are correct, and secondary connection refers to current transformer
Otherwise the cable connection between company between combining unit carries out the inspection of this several respect and is excluded, until merging single
4 reading of member is normal, checks that other secondary devices 5 are read after exclusion, such as abnormal, checks corresponding optic fiber configureing and parameter setting, arranges
Except abnormal conditions, until the reading display of all secondary devices 5 is normal.Secondary device parameter setting refers to make secondary set
It is standby correctly to work in different occasions, different objects, the corresponding configuration that its running parameter is carried out.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, according to
According to the technical spirit of the present invention to any simple modification, equivalent change and modification made by above example, this hair is still fallen within
In the range of bright technical solution.
Claims (9)
- The through-flow device 1. one kind is once pressurizeed, for being debugged to intelligent substation, it is characterised in that including：Connected by circuit Self coupling and pressure regulator 1, Current Mutual Inductance type current lifting device 2 and the phase meter 6 connect；The secondary terminals of the Current Mutual Inductance type current lifting device are used to connect with the primary end of the current transformer of the intelligent substation It connects, standard current transformer, standard current transformer secondary terminals is in series in the secondary terminals of the Current Mutual Inductance type current lifting device It is connected with ammeter；The output end of the self coupling and pressure regulator 1 with the input terminal of the combining unit of the intelligent substation for connecting, in institute The output end for stating self coupling and pressure regulator is connected with voltmeter, and the voltmeter is used for monitoring the output electricity of the self coupling and pressure regulator Pressure；The electric current input of the phase meter is the secondary terminals of the standard current transformer, and the control source of the phase meter is certainly The output end of coupling and pressure regulator；Further include starter, both ends are connect with firewire and zero curve respectively, the starter include start button, reset by Button, zero position switch and first contactor,The wherein described start button and zero position switch are arranged in series, the first contactor and the start button and zero position switch It is arranged in parallel.
- 2. the through-flow device according to claim 1 that once pressurizes, which is characterized in thatThe ammeter is used for monitoring the actual primary current size of the Current Mutual Inductance type current lifting device.
- 3. the through-flow device according to claim 1 that once pressurizes, which is characterized in thatFurther include operating status display apparatus, both ends are connect with firewire and zero curve respectively, and the operating status display apparatus includes Red light circuit and green light circuit, the red light circuit and green light lines in parallel；The red light circuit includes red light and second contactor,The green light circuit includes green light and third contactor.
- 4. the through-flow device according to claim 3 that once pressurizes, which is characterized in thatIt is equipped with the 4th contactor in the firewire incoming end of the through-flow device that once pressurizes；It is equipped with the 5th contactor in the zero curve incoming end of the through-flow device that once pressurizes.
- 5. the through-flow device according to any one of claim 1 to 4 that once pressurizes, which is characterized in thatThe first fuse is equipped at the firewire incoming end of the through-flow device that once pressurizes；Second circuit fuse is equipped at the zero curve incoming end of the through-flow device that once pressurizes.
- 6. the through-flow device according to claim 1 that once pressurizes, which is characterized in that further include the second electric current relay and Three electric current relays, wherein：Second electric current relay is arranged close to zero curve；The third electric current relay is arranged close to self coupling and pressure regulator.
- 7. a kind of intelligence transformer substation system, which is characterized in that including：It is according to any one of claims 1 to 6 once pressurize it is through-flow Device and intelligent substation.
- 8. a kind of control method of intelligent transformer substation system as claimed in claim 7, it is characterised in that include the following steps：The reading A of the ammeter is compared with the secondary device of intelligent substation reading A1；The reading of the voltmeter Number B is compared with the secondary device of intelligent substation reading B1；The reading C of the phase meter and the intelligent substation Secondary device reading C1 be compared；If A=A1, C=C1, the B=B1 then intelligent substation no problem complete test process；If A ≠ A1 or C ≠ C1 or B ≠ B1 is then gradually analyzed investigation by result.
- 9. control method according to claim 8, which is characterized in thatThe gradually analysis, which is investigated, includes：When A ≠ A1, first checks for combining unit and show numerical value, if combining unit shows that numerical value shows that numerical value is consistent with ammeter, Then prove that combining unit setting is correct, current mutual-inductor parameter is correct, as combining unit shows that numerical value shows numerical value with ammeter It is inconsistent, then it checks the wiring of combining unit setting and current mutual-inductor parameter, current transformer, abnormal conditions is given and are excluded Until combining unit reading is normal, check that other secondary devices are read after exclusion, it is such as abnormal, check corresponding optical fiber and equipment Configuring condition gives exclusion until reading display is normal to abnormal conditions；It when B is with B1 differences, first checks for combining unit and shows numerical value, if combining unit shows that numerical value is B, then prove combining unit Setting is correct, if combining unit shows numerical exception, then checks that combining unit is arranged, and gives exclusion to abnormal conditions until merging Unit reading is normal, checks that other secondary devices are read after exclusion, such as abnormal, checks the configuration feelings of corresponding optical fiber and equipment Condition gives exclusion until reading display is normal to abnormal conditions；When C is with C1 differences, ensure A=A1, B=B1 first, at this moment check combining unit reading, if combining unit reading is C, card Bright combining unit setting and current transformer polarity and secondary connection are correct, otherwise carry out the inspection of this several respect and are arranged Remove, until combining unit reading is normal, check that other secondary devices are read after exclusion, it is such as abnormal, check corresponding optic fiber configureing and Parameter setting excludes abnormal conditions, until the reading display of all secondary devices is normal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510127827.3A CN104749461B (en) | 2015-03-23 | 2015-03-23 | One kind is once pressurizeed through-flow device, intelligent transformer substation system and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510127827.3A CN104749461B (en) | 2015-03-23 | 2015-03-23 | One kind is once pressurizeed through-flow device, intelligent transformer substation system and its control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104749461A CN104749461A (en) | 2015-07-01 |
| CN104749461B true CN104749461B (en) | 2018-08-14 |
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| CN111060771A (en) * | 2019-12-31 | 2020-04-24 | 中国能源建设集团华东电力试验研究院有限公司 | Relay protection and automatic calibration system with analog load |
| CN112798990A (en) * | 2020-12-16 | 2021-05-14 | 国网浙江省电力有限公司杭州供电公司 | 10kV bus voltage transformer secondary circuit wiring checking method |
| CN113791344B (en) * | 2021-11-17 | 2022-06-28 | 西安西电高压开关有限责任公司 | Switching test loop and method for switching current of high-voltage isolating switch |
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