CN206470331U - A kind of transformer operation characteristic evaluating platform based on environmental impact factor - Google Patents
A kind of transformer operation characteristic evaluating platform based on environmental impact factor Download PDFInfo
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Abstract
The utility model discloses a kind of transformer operation characteristic evaluating platform based on environmental impact factor, including：Standard current transformer and standard potential transformer are linked into evaluating platform by switch element, the first data acquisition module, the second data acquisition module, the 3rd data acquisition module, environment monitoring sensor, transformer on-Line Monitor Device, voltage transformer to be measured, current transformer to be measured, standard current transformer and standard potential transformer, the switch element；First data acquisition module is connected with the data processing module of the transformer on-Line Monitor Device；Second data acquisition module is connected with the data processing module of the transformer on-Line Monitor Device；The once end of the standard current transformer and the standard potential transformer is connected with test circuit respectively, and secondary terminals are connected with the 3rd data acquisition module respectively；And the environment monitoring sensor is connected with the environment monitoring module of the transformer on-Line Monitor Device.
Description
Technical field
The utility model is related to smart machine key technology area, and is based on ambient influnence more particularly, to one kind
The transformer operation characteristic evaluating platform of factor.
Background technology
Power industry for the traditional approach of the operation characteristic evaluation of transformer is combined using laboratory verification before putting into operation
The mode of periodic calibration in running, passes through the whether qualified metering to judge transformer of the data of laboratory and periodic calibration
Performance.There is very big deficiency in the mode of this cycle field test, one side Site Detection is influenceed larger by extraneous factor, no
Metering device normality operation conditions can be estimated accordingly, round work on the spot every time is also required to expend substantial amounts of manpower, wealth
Power and time, relative cost are higher, and the security risk of work on the spot is larger；On the other hand, due to lacking real-time monitoring system, no
The failure problems of transformer can be found, handled in time.With the extensive application of the transformer of the new principles such as electronic mutual inductor,
Stability and reliability in its running still have certain gap compared to conventional electromagnetic transformer, it more difficult to pass through reality
Testing the method for room calibrating and periodic calibration ensures the reliable of metering performance in its running.
With continuing to develop for sensor technology, data acquisition and transmission technology, for the deficiency of traditional evaluation method, from
1990s, the on-line monitoring device of the transformer for different principle of some is occurred in that both at home and abroad, passes through reality
When collection transformer running in state parameter, and combine periodic calibration during test data, judge transformer
Whether error is qualified.The existing method for judging transformer operation characteristic is by on-Line Monitor Device, collection transformer operation
During the electric parameter such as primary voltage, electric current, and carry out error calculation with normative reference, obtain ratio difference and the angle of transformer
Difference data, then judges whether transformer is overproof.
The evaluation method of existing transformer operation characteristic is that the transformer examined is arranged on into a certain bar actual motion
Transmission line of electricity in, such method is unfavorable for examining operation characteristic of the transformer under different operating modes.Such as voltage transformer,
The excursion of its primary voltage is typically all to change in the range of rated voltage ± 5%；The primary current of current transformer
It is " real power " electric current that the power load on circuit is produced, common dynamic scope very little, mostly in rated primary current
Change in the range of 20%~50%；Transformer for different voltage class is time-consuming, it is necessary to look for different transmission lines of electricity to install
Arduously；The need for power supply reliability, the transmission line of electricity of actual motion can not interruption maintenance at any time, thus cause failure
Transformer can not be changed in time.
The content of the invention
In order to solve the above problems, the utility model provides a kind of transformer operation characteristic based on environmental impact factor
Evaluating platform, the transformer includes electromagnetic transformer and electronic mutual inductor, and the evaluating platform includes：Switch element,
First data acquisition module, the second data acquisition module, the 3rd data acquisition module, environment monitoring sensor, transformer are online
Monitoring device, voltage transformer to be measured, current transformer to be measured, standard current transformer and standard potential transformer,
Standard current transformer and standard potential transformer are linked into evaluating platform by the switch element；
The once end (high-pressure side) of the voltage transformer to be measured is connected with test circuit respectively, secondary terminals (low-pressure end)
It is connected respectively with first data acquisition module, first data acquisition module and the transformer on-Line Monitor Device
Data processing module be connected, first data acquisition module be used for gather voltage transformer to be measured secondary voltage operation
Data；
The once end of the current transformer to be measured is serially connected in test circuit respectively, and secondary terminals are counted with described second respectively
It is connected according to acquisition module, second data acquisition module and the data processing module phase of the transformer on-Line Monitor Device
Connection, second data acquisition module is used for the secondary current service data for gathering current transformer to be measured；
The once end of the standard current transformer and the standard potential transformer is connected with test circuit respectively, secondary
End is connected with the 3rd data acquisition module respectively, and the 3rd data acquisition module is used to gather the two of standard current transformer
The secondary voltage value of primary current value and standard potential transformer；And
The environment monitoring sensor is connected with the environment monitoring module of the transformer on-Line Monitor Device, the ring
Border monitoring sensor is respectively used for measuring temperature, humidity, air pressure and salt haze value in running environment.
Preferably, wherein the evaluating platform also includes：Pressure regulator, current lifting device and testing transformer.
Preferably, wherein the evaluating platform can be changed by testing transformer and current lifting device experiment needed for once
Voltage and primary current, testing transformer are low pressure, input end with pressure regulator connection end, are that high pressure is defeated with first switch connection end
Go out end.
Preferably, wherein the switch element includes：First switch, second switch, third switch, the 4th switch, the 5th
Switch, the 6th switch, the 7th switch, the 8th switch and the 9th switch.
Preferably, wherein the voltage transformer to be measured includes electromagnetic potential transformer or electronic type voltage transformer.
Preferably, wherein the current transformer to be measured includes electromagnetic current transducer or electronic type electromagnetic transformer.
Preferably, wherein the switch element can be realized by the combination of the closed and disconnected for controlling high-voltage switch gear
Real power current working mode and real power electric current add the combination current mode of operation of fictitious power electric current.
Preferably, wherein the environment monitoring sensor includes：Temperature sensor, humidity sensor, baroceptor and
Salt fog sensor.
The beneficial effects of the utility model are：
1. the embodiment that this patent proposes a kind of powered evaluating platform of transformer, for electromagnetic transformer and electronics
The operation characteristic research of formula transformer.Evaluating platform by testing transformer and current lifting device produce primary voltage needed for experiment and
Primary current, wherein " fictitious power " electric current produced by current lifting device in circuit with loading after " real power " currents combination produced,
The dynamic range of electric current in energy lifting test circuit.
2. by controlling the input voltage of pressure regulator and current lifting device to realize the primary voltage and primary current of evaluating platform
Regulation.
3. by controlling the closure of evaluating platform high-voltage switch/cut-off combinational logic, realize once electric in evaluating platform
Flowing only is including two kinds of mode of operations that " real power " electric current and " real power " electric current add " fictitious power " electric current.Such embodiment party
Case had both truly simulated operating mode of the transformer in actual motion circuit, and the flexible modulation of test voltage, electric current, energy are realized again
Operation characteristic of enough more perfect acquisitions by examination transformer under different operating modes.
Brief description of the drawings
By reference to the following drawings, illustrative embodiments of the present utility model can be more fully understood by：
Fig. 1 is the structural representation of the evaluating platform according to the utility model embodiment；And
Fig. 2 is the structural representation of the data acquisition module according to another embodiment of the utility model.
Embodiment
Illustrative embodiments of the present utility model are introduced with reference now to accompanying drawing, however, the utility model can use many
Different forms is implemented, and to be not limited to embodiment described herein there is provided these embodiments be in order at large and complete
Open the utility model entirely, and fully pass on to person of ordinary skill in the field scope of the present utility model.For
Term in the illustrative embodiments being illustrated in the accompanying drawings is not to limit of the present utility model.In the accompanying drawings, identical
Cells/elements use identical reference.
Unless otherwise indicated, term (including scientific and technical terminology) used herein has to person of ordinary skill in the field
It is common to understand implication.Further it will be understood that the term limited with usually used dictionary, is appreciated that and it
The linguistic context of association area has consistent implication, and is not construed as Utopian or excessively formal meaning.
Fig. 1 is the structural representation of the evaluating platform according to the utility model embodiment.As shown in figure 1, described state is examined
Core platform includes：Switch element, the first data acquisition module, the second data acquisition module, the 3rd data acquisition module, environment prison
Survey sensor, transformer on-Line Monitor Device, voltage transformer to be measured, current transformer to be measured, standard current transformer and mark
Quasi- voltage transformer,
Standard current transformer and standard potential transformer are linked into evaluating platform by the switch element；
The once end (high-pressure side) of the voltage transformer to be measured is connected with test circuit respectively, secondary terminals (low-pressure end)
It is connected respectively with first data acquisition module, first data acquisition module and the transformer on-Line Monitor Device
Data processing module be connected, first data acquisition module be used for gather voltage transformer to be measured secondary voltage operation
Data；
The once end of the current transformer to be measured is serially connected in test circuit respectively, and secondary terminals are counted with described second respectively
It is connected according to acquisition module, second data acquisition module and the data processing module phase of the transformer on-Line Monitor Device
Connection, second data acquisition module is used for the secondary current service data for gathering current transformer to be measured；
The once end of the standard current transformer and the standard potential transformer is connected with test circuit respectively, secondary
End is connected with the 3rd data acquisition module respectively, and the 3rd data acquisition module is used to gather the two of standard current transformer
The secondary voltage value of primary current value and standard potential transformer；And
The environment monitoring sensor is connected with the environment monitoring module of the transformer on-Line Monitor Device, the ring
Border monitoring sensor is respectively used for measuring temperature, humidity, air pressure and salt haze value in running environment.
Preferably, wherein the evaluating platform also includes：Pressure regulator, current lifting device and testing transformer.Preferably, wherein institute
The primary voltage and primary current needed for experiment can be changed by testing transformer and current lifting device by stating evaluating platform, and experiment becomes
Depressor is low pressure, input end with pressure regulator connection end, is high-voltage output end with first switch connection end.In test circuit once
Magnitude of voltage is controlled by the pressure regulator being connected with testing transformer.Pressure regulator changes its output end, and (testing transformer low pressure is inputted
End) magnitude of voltage, realize to testing transformer high-voltage output end produce primary voltage regulation.When output voltage regulator voltage
During rise, the primary voltage rise that testing transformer high-voltage output end is produced；When output voltage regulator voltage is reduced, experiment becomes
The primary voltage reduction that depressor high-voltage output end is produced.
Preferably, wherein the switch element includes：First switch, second switch, third switch, the 4th switch, the 5th
Switch, the 6th switch, the 7th switch, the 8th switch and the 9th switch.
Preferably, wherein the voltage transformer to be measured includes electromagnetic potential transformer or electronic type voltage transformer.
Preferably, wherein the current transformer to be measured includes electromagnetic current transducer or electronic type electromagnetic transformer.
Preferably, wherein the switch element can be realized by the combination of the closed and disconnected for controlling high-voltage switch gear
Real power current working mode and real power electric current add the combination current mode of operation of fictitious power electric current.Wherein, in test circuit
Primary current value produced by two ways, one kind be real power electric current, one kind be fictitious power electric current.Real power electric current is by examining
Primary voltage in platform is carried in load and produced, and the size of the real power electric current is equal to primary voltage value and load
The ratio of impedance.Fictitious power electric current is produced by current lifting device, and its size is adjusted by the input of current lifting device, the increase of input power
When, the fictitious power electric current increase produced by current lifting device output end in test circuit；It is defeated by current lifting device when input power is reduced
Go out " fictitious power " electric current reduction that end is produced in test circuit.Preferably, switch element can be by controlling closing for high-voltage switch gear
The combination closed and disconnected, realizes the combination current work of real power current working mode and real power electric current plus fictitious power electric current
Operation mode.
Wherein described evaluating platform can realize the group of real power current working mode and real power electric current plus fictitious power electric current
Close current-mode.Preferably, wherein the switch element can be real by the combination of the closed and disconnected for controlling high-voltage switch gear
Real power current mode of operation and real power electric current add the combination current mode of operation of fictitious power electric current.Wherein, mode of operation
, being capable of real mould with current transformer as the method for operation in actual power delivery circuit during only to include real power electric current
Intend actual operating mode；When mode of operation is that real power electric current adds the combination current mode of operation of fictitious power electric current, pass through regulation
The dynamic range of electric current in fictitious power size of current, energy flexible modulation test circuit, makes up " real power " electric current examination point single
The problem of, " fictitious power " electric current is relative to " real power " electric current, more energy-conserving and environment-protective.
The switching of two kinds of mode of operations is realized by the closure of control circuit high-voltage switch/cut-off combinational logic.It is " real
During power " current working mode, it can be closed by closed high switch 1, high-voltage switch gear 5, high-voltage switch gear 6 and high-voltage switch gear 9
And disconnect high-voltage switch gear 2, high-voltage switch gear 3, high-voltage switch gear 4 and high-voltage switch gear 7 to realize, now standard current transformer is accessed
Into test circuit, electric current passes through electromagnetic current transducer, electronic current mutual inductor, high-voltage switch gear 5, mark in test circuit
Quasi- current transformer, high-voltage switch gear 6, high-voltage switch gear 9 and load form current path；Also closed high switch 1, height can be passed through
Compress switch 7 and high-voltage switch gear 9 and disconnection high-voltage switch gear 2, high-voltage switch gear 3, high-voltage switch gear 4, high-voltage switch gear 5 and high-voltage switch gear
Realize, now standard current transformer does not access electric current in test circuit, test circuit and passes through electromagnetic current transducer, electronics
Formula current transformer, high-voltage switch gear 7, high-voltage switch gear 9 and load form path." real power " electric current adds the group of " fictitious power " electric current
When closing current working mode, closed high switch 1, high-voltage switch gear 2, high-voltage switch gear 4, high-voltage switch gear 5, high-voltage switch gear can be passed through
6 and high-voltage switch gear 9 and disconnect high-voltage switch gear 3 and high-voltage switch gear 7 and realize that now standard current transformer is linked into test circuit
In, test circuit high-voltage switch 2, electromagnetic current transducer, electronic current mutual inductor, high-voltage switch gear 5, normalized current are mutual
Electric current is combination current in the loop that sensor, high-voltage switch gear 6, high-voltage switch gear 4 and current lifting device are constituted；Also closed high can be passed through
Switch 1, high-voltage switch gear 2, high-voltage switch gear 3, high-voltage switch gear 7 and high-voltage switch gear 9 close and disconnected high-voltage switch gear 4, high-voltage switch gear 5
Realized with high-voltage switch gear 6, now standard current transformer does not access test circuit, high-voltage switch gear 2, electromagnetic current transducer,
Electric current in the loop of electronic current mutual inductor high-voltage switch gear 3 and current lifting device composition is combination current.Wherein, no matter cooperation work
Operation mode, high-voltage switch gear 8, which is closed or disconnected, all to be allowed.
Due to standard mutual inductor can not live line work for a long time, so its working method is since daily zero point, Mei Gesan
Individual hour, it is linked into test circuit, access 15 minutes, then cut out test circuit afterwards every time.Standard current transformer is logical
Cross control high-voltage switch gear 5, high-voltage switch gear 6 and high-voltage switch gear 7 and realize the control switched in and out, closed high switch 5 and high pressure
Circuit is cut when the closure of switch 6 and disconnection high-voltage switch gear 7, otherwise is cut out；Standard potential transformer is realized by high-voltage switch gear 8
The control switched in and out, high-voltage switch gear 8 cuts circuit when closing, otherwise cuts out.
The data processing module of transformer on-Line Monitor Device is run according to above-mentioned secondary voltage service data, secondary current
The secondary voltage value of data, the secondary current value of standard current transformer and standard potential transformer is calculated respectively obtains described treat
The ratio difference and angular difference value of voltage transformer and the current transformer to be measured are surveyed, for mutual under varying environment influence factor
Sensor kinematic error characteristic is analyzed.Preferably, measured using above-mentioned than difference and angular difference value and environment monitoring sensor
To environmental data draw respectively than poor characteristic curve and angular difference characteristic curve, for mutual under varying environment influence factor
Sensor kinematic error characteristic is analyzed.Wherein described environment monitoring sensor and the environment of the transformer on-Line Monitor Device
Monitoring modular is connected.Preferably, wherein the environment monitoring sensor includes：Temperature sensor, humidity sensor, air pressure transmission
Sensor and salt fog sensor.
Preferably, wherein the environment monitoring sensor includes：Temperature sensor, humidity sensor, baroceptor and
Salt fog sensor, is respectively used for measuring temperature, humidity, air pressure and salt haze value in running environment.
Preferably, wherein described include than poor characteristic curve：Temperature-than poor characteristic curve, humidity-than poor characteristic curve,
Air pressure-than poor characteristic curve and salt fog-than poor characteristic curve.Preferably, wherein the angular difference characteristic curve includes：Temperature-angle
Poor characteristic curve, humidity-angular difference characteristic curve, air pressure-angular difference characteristic curve and salt fog-angular difference characteristic curve.Preferably, wherein
The varying environment influence factor includes：High severe cold, high xeothermic, high damp and hot, High aititude and high salt fog.Preferably, wherein in height
Under severe cold environment, high arid and hot environment and high humid and warm environment, by the aspect of temperature and humidity two to the voltage transformer to be measured and
The current transformer operation characteristic to be measured is analyzed；It is mutual to the voltage to be measured in terms of air pressure under high altitude environment
The operation characteristic of sensor and the current transformer to be measured is analyzed；And, under high salt mist environment, to institute in terms of salt fog
The fortune characteristic for stating voltage transformer to be measured and the current transformer to be measured is analyzed.
Fig. 2 is the structural representation of the data acquisition module according to another embodiment of the utility model.As shown in Fig. 2
The test circuit of evaluating platform includes by taking B phases as an example in evaluating platform, pressure regulator one, testing transformer one, electromagnetic type electricity
Press transformer 2 (test product), electronic type voltage transformer 3 (test product), electromagnetic current transducer 2 (test product), electromagnetic type
3, voltage transformer (test product), current lifting device 1, standard CT1 platforms, standard PT1 platforms load 1 set.Test product voltage transformer is main
Parameter is 10kV/0.2 grades, and test product current transformer major parameter is 10kV/0.2S grades/600A, and standard CT is 10kV/0.05
Level/600A, standard PT are 10kV/0.05 grades.
The primary voltage of experimental circuit in the evaluating platform is produced by testing transformer, testing transformer and pressure regulator
Connection end is low pressure, input end, is high-voltage output end with the connection end of high-voltage switch gear 1.High-voltage output end produces evaluating platform test wire
Proportionate relationship between primary voltage in road, and testing transformer low pressure, input end and high-voltage output end is fixed value.
Primary voltage value in test circuit is controlled by the pressure regulator being connected with testing transformer.It is defeated that pressure regulator changes its
Go out the magnitude of voltage at end (testing transformer low pressure, input end), realize to the primary voltage of testing transformer high-voltage output end generation
Regulation.When output voltage regulator voltage is raised, the primary voltage rise that testing transformer high-voltage output end is produced；Work as pressure regulator
When output end voltage is reduced, the primary voltage reduction that testing transformer high-voltage output end is produced.
The electromagnetic potential transformer and the electronic type voltage transformer for need checking verification as when, once hold (high pressure
End) it is connected respectively with test circuit, secondary terminals (low-pressure end) are connected with first data acquisition module respectively, and described the
One data acquisition module is connected with the data processing module of the transformer on-Line Monitor Device.First data acquisition module
The service data of the electromagnetic potential transformer collected and the secondary voltage of electronic type voltage transformer is sent to data by block
Data processing and analysis are carried out in processing module.
When the electromagnetic current transducer and the electronic current mutual inductor is examination objects, it is once held and gone here and there respectively
Be connected in test circuit, secondary terminals are connected with second data acquisition module respectively, second data acquisition module with
The data processing module of the transformer on-Line Monitor Device is connected.Second data acquisition module is by the electromagnetism collected
The service data of the secondary current of formula current transformer and electronic current mutual inductor, which is sent in data processing module, enters line number
According to processing and analysis.
Wherein, the primary current value in test circuit is produced by two ways, and one kind is real power electric current, and one kind is virtual work
Rate electric current.Primary voltage of the real power electric current in evaluating platform is carried in load and produced, and the real power electric current
Size is equal to the ratio of primary voltage value and load impedance.Fictitious power electric current is produced by current lifting device, and its size is by the defeated of current lifting device
Enter end regulation, when input power increases, the fictitious power electric current increase produced by current lifting device output end in test circuit；Input
When holding power reduction, " fictitious power " electric current produced by current lifting device output end in test circuit reduces.
The evaluating platform can realize the combination electricity of real power current working mode and real power electric current plus fictitious power electric current
Stream mode.Preferably, wherein the switch element can be realized real by the combination of the closed and disconnected for controlling high-voltage switch gear
Power current mode of operation and real power electric current add the combination current mode of operation of fictitious power electric current.Wherein, mode of operation is only
During including real power electric current, as the method for operation in actual power delivery circuit, reality can be really simulated with current transformer
Border operating condition；When mode of operation is that real power electric current adds the combination current mode of operation of fictitious power electric current, by adjusting virtual work
The dynamic range of electric current, makes up " real power " electric current and examines point is single to ask in rate size of current, energy flexible modulation test circuit
Topic, " fictitious power " electric current is relative to " real power " electric current, more energy-conserving and environment-protective.
The switching of two kinds of mode of operations is realized by the closure of control circuit high-voltage switch/cut-off combinational logic.Such as
Shown in Fig. 1, when evaluating platform is " real power " current working mode, closed high switch 1, high-voltage switch gear 5, high pressure can be passed through
Switch 6 and high-voltage switch gear 9 close and disconnected high-voltage switch gear 2, high-voltage switch gear 3, high-voltage switch gear 4 and high-voltage switch gear 7 to realize, this
When standard current transformer be linked into test circuit, in test circuit electric current pass through electromagnetic current transducer, electronic type electricity
Current transformer, high-voltage switch gear 5, standard current transformer, high-voltage switch gear 6, high-voltage switch gear 9 and load form current path；Also can
Enough pass through closed high switch 1, high-voltage switch gear 7 and high-voltage switch gear 9 and disconnection high-voltage switch gear 2, high-voltage switch gear 3, high-voltage switch gear
4th, high-voltage switch gear 5 and high-voltage switch gear realize that now standard current transformer does not access electric current in test circuit, test circuit and led to
Cross electromagnetic current transducer, electronic current mutual inductor, high-voltage switch gear 7, high-voltage switch gear 9 and load and form path.Examination is flat
When platform is that " real power " electric current adds the combination current mode of operation of " fictitious power " electric current, closed high switch 1, high pressure can be passed through
Switch 2, high-voltage switch gear 4, high-voltage switch gear 5, high-voltage switch gear 6 and high-voltage switch gear 9 and disconnection high-voltage switch gear 3 and high-voltage switch gear 7 are real
Existing, now standard current transformer is linked into test circuit, test circuit high-voltage switch 2, electromagnetic current transducer, electricity
The loop that type current transformer, high-voltage switch gear 5, standard current transformer, high-voltage switch gear 6, high-voltage switch gear 4 and current lifting device are constituted
Middle electric current is combination current；Also closed high switch 1, high-voltage switch gear 2, high-voltage switch gear 3, high-voltage switch gear 7 and high pressure can be passed through
The closure of switch 9 and disconnection high-voltage switch gear 4, high-voltage switch gear 5 and high-voltage switch gear 6 realize that now standard current transformer is not accessed
Test circuit, what high-voltage switch gear 2, electromagnetic current transducer, electronic current mutual inductor high-voltage switch gear 3 and current lifting device were constituted returns
Electric current in road is combination current.Wherein, no matter cooperation work pattern, high-voltage switch gear 8, which is closed or disconnected, all to be allowed.
3rd data acquisition module is by the secondary current value of the standard current transformer of collection and standard potential transformer
Secondary voltage value is sent to the data processing module of the transformer on-Line Monitor Device in evaluating platform, wherein the normalized current
The primary voltage of the secondary current value of transformer including system is carried in the real power current value that is produced in load and by current lifting device
The fictitious power current value of generation.The once end of the standard current transformer and the standard potential transformer respectively with test wire
Road is connected, and secondary terminals are connected with the 3rd data acquisition module respectively.Standard current transformer and standard potential transformer difference
It is used as the normative reference of current transformer to be measured and voltage transformer in evaluating platform.Because standard mutual inductor can not be powered for a long time
Work, so its working method is since daily zero point, every three hours, is linked into test circuit, 15 is accessed every time
Minute, test circuit is then cut out afterwards.Standard current transformer is by controlling high-voltage switch gear 5, high-voltage switch gear 6 and high-voltage switch gear
7 realize the control switched in and out, and closed high switch 5 and high-voltage switch gear 6 cut line when closing and disconnect high-voltage switch gear 7
Road, on the contrary cut out；Standard potential transformer realizes the control switched in and out by high-voltage switch gear 8, and high-voltage switch gear 8 is cut when closing
Enter circuit, otherwise cut out.
The data processing module is to above-mentioned secondary voltage service data, secondary current service data, normalized current mutual inductance
The secondary current value of device and the secondary voltage value of standard potential transformer carry out Treatment Analysis and calculated respectively to obtain described to be measured
The ratio difference and angular difference value of voltage transformer and the current transformer to be measured.
Evaluating platform using the above-mentioned environmental data obtained than difference and angular difference value and environment monitoring sensor measurement come point
Hui Zhi not be than poor characteristic curve and angular difference characteristic curve, for the transformer kinematic error characteristic under varying environment influence factor
Analyzed.Wherein described environment monitoring sensor is connected with the environment monitoring module of the transformer on-Line Monitor Device.
Preferably, wherein the environment monitoring sensor includes：Temperature sensor, humidity sensor, baroceptor and salt fog sensing
Device, is respectively used for measuring temperature, humidity, air pressure and salt haze value in running environment.
Preferably, wherein described include than poor characteristic curve：Temperature-than poor characteristic curve, humidity-than poor characteristic curve,
Air pressure-than poor characteristic curve and salt fog-than poor characteristic curve.Preferably, wherein the angular difference characteristic curve includes：Temperature-angle
Poor characteristic curve, humidity-angular difference characteristic curve, air pressure-angular difference characteristic curve and salt fog-angular difference characteristic curve.Preferably, wherein
The varying environment influence factor includes：High severe cold, high xeothermic, high damp and hot, High aititude and high salt fog.Preferably, wherein in height
Under severe cold environment, high arid and hot environment and high humid and warm environment, by the aspect of temperature and humidity two to the voltage transformer to be measured and
The current transformer operation characteristic to be measured is analyzed；It is mutual to the voltage to be measured in terms of air pressure under high altitude environment
The operation characteristic of sensor and the current transformer to be measured is analyzed；And, under high salt mist environment, to institute in terms of salt fog
The fortune characteristic for stating voltage transformer to be measured and the current transformer to be measured is analyzed.
The utility model is described by reference to a small amount of embodiment.However, it is known in those skilled in the art,
Limited as subsidiary Patent right requirement, except the utility model other embodiments disclosed above equally fall
In the range of the utility model.
Normally, all terms used in the claims are all solved according to them in the usual implication of technical field
Release, unless clearly defined in addition wherein.All references " one/described/be somebody's turn to do [device, component etc.] " are all opened ground
At least one example in described device, component etc. is construed to, unless otherwise expressly specified.Any method disclosed herein
Step need not all be run with disclosed accurate order, unless explicitly stated otherwise.
Claims (8)
1. a kind of transformer operation characteristic evaluating platform based on environmental impact factor, the transformer includes electromagnetic transformer
And electronic mutual inductor, the evaluating platform includes：Switch element, the first data acquisition module, the second data acquisition module,
Three data acquisition modules, environment monitoring sensor, transformer on-Line Monitor Device, voltage transformer to be measured, Current Mutual Inductance to be measured
Device, standard current transformer and standard potential transformer,
Standard current transformer and standard potential transformer are linked into evaluating platform by the switch element；
The once end of the voltage transformer to be measured is connected with test circuit respectively, and secondary terminals are adopted with first data respectively
Collection module is connected, and first data acquisition module is connected with the data processing module of the transformer on-Line Monitor Device
Connect, first data acquisition module is used for the secondary voltage service data for gathering voltage transformer to be measured；
The once end of the current transformer to be measured is serially connected in test circuit respectively, and secondary terminals are adopted with second data respectively
Collection module is connected, and second data acquisition module is connected with the data processing module of the transformer on-Line Monitor Device
Connect, second data acquisition module is used for the secondary current service data for gathering current transformer to be measured；
The once end of the standard current transformer and the standard potential transformer is connected with test circuit respectively, secondary terminals point
It is not connected with the 3rd data acquisition module, the 3rd data acquisition module is used for the secondary electricity for gathering standard current transformer
The secondary voltage value of flow valuve and standard potential transformer；And
The environment monitoring sensor is connected with the environment monitoring module of the transformer on-Line Monitor Device, the environment prison
Sensor is surveyed to be respectively used to measure temperature, humidity, air pressure and the salt haze value in running environment.
2. evaluating platform according to claim 1, wherein the evaluating platform also includes：Pressure regulator, current lifting device and experiment
Transformer.
3. evaluating platform according to claim 2, wherein the evaluating platform can pass through testing transformer and current lifting device
To change primary voltage and primary current needed for experiment, testing transformer and pressure regulator connection end are low pressure, input end, with the
One switch connection end is high-voltage output end.
4. evaluating platform according to claim 1, wherein the switch element includes：First switch, second switch, the 3rd
Switch, the 4th switch, the 5th switch, the 6th switch, the 7th switch, the 8th switch and the 9th switch.
5. evaluating platform according to claim 1, wherein the voltage transformer to be measured includes electromagnetic potential transformer
Or electronic type voltage transformer.
6. evaluating platform according to claim 1, wherein the current transformer to be measured includes electromagnetic current transducer
Or electronic type electromagnetic transformer.
7. evaluating platform according to claim 1, wherein the switch element can by control high-voltage switch gear closure and
The combination of disconnection, realizes the combination current Working mould of real power current working mode and real power electric current plus fictitious power electric current
Formula.
8. evaluating platform according to claim 1, wherein the environment monitoring sensor includes：Temperature sensor, humidity
Sensor, baroceptor and salt fog sensor.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732527A (en) * | 2018-08-06 | 2018-11-02 | 国网四川省电力公司电力科学研究院 | Quality of transformer performance on-line monitoring system based on wide area synchro measure |
| CN113219394A (en) * | 2021-07-08 | 2021-08-06 | 武汉磐电科技股份有限公司 | Mutual inductor electrical performance test control method, device, equipment and storage medium |
-
2016
- 2016-11-17 CN CN201621234169.4U patent/CN206470331U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108732527A (en) * | 2018-08-06 | 2018-11-02 | 国网四川省电力公司电力科学研究院 | Quality of transformer performance on-line monitoring system based on wide area synchro measure |
| CN113219394A (en) * | 2021-07-08 | 2021-08-06 | 武汉磐电科技股份有限公司 | Mutual inductor electrical performance test control method, device, equipment and storage medium |
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