CN113238130A - Method for carrying out resonance power frequency high-voltage test on high-voltage hollow double-wrapped reactor - Google Patents
Method for carrying out resonance power frequency high-voltage test on high-voltage hollow double-wrapped reactor Download PDFInfo
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
Abstract
The invention discloses a method for carrying out a resonance power frequency high-voltage test on a high-voltage hollow double-packet reactor, which is used for testing the high-voltage hollow double-packet reactor and comprises the following steps: s1, selecting a laboratory, and setting an indoor temperature interval to be-15-40 ℃; the relative humidity was: RH is less than or equal to 90 percent; the altitude is: less than or equal to 3500 m; s2, selecting the length of one kilometer and the end surface area of 500mm2110KV cable; meanwhile, the capacitance is less than or equal to 0.169 uF; test frequency: 30-300 Hz; the test voltage U is less than or equal to 128 kV. According to the method for carrying out the resonance power frequency high-voltage test on the high-voltage hollow double-wrapped reactor, cables and a plurality of groups of reactors with different lengths are selected, the cables and the reactors are installed in the variable frequency power supply control box, the high-voltage resonance power frequency high-voltage test on the high-voltage hollow double-wrapped reactor is facilitated, the safety and the stability in the test process are facilitated to be increased through the different cables and the plurality of groups of reactors, and therefore the test effect that the method has the effect of increasing the high-voltage hollow double-wrapped reactor is achieved.
Description
Technical Field
The invention relates to the technical field of reactors, in particular to a method for carrying out a resonance power frequency high-voltage test on a high-voltage hollow double-clad reactor.
Background
The reactor is also called as an inductor, when one conductor is electrified, a magnetic field can be generated in a certain space range occupied by the conductor, so that all electric conductors capable of carrying current have the general sensitivity, but the inductance of the electrified long straight conductor is smaller, and the generated magnetic field is not strong, so that the actual reactor is in a mode that a conducting wire is wound into a solenoid, and is called as an air reactor; sometimes, in order to make the solenoid have larger inductance, a core is inserted into the solenoid, so called core reactor, the reactance is divided into inductive reactance and capacitive reactance, the more scientific classification is that the inductive reactance (inductor) and the capacitive reactance (capacitor) are collectively called reactor, however, since the inductor is existed in the past and is called reactor, so the capacitor is called reactor at present, and the reactor is specially called inductor.
When the existing high-voltage hollow double-package reactor is used, the high-voltage hollow double-package reactor is single, so that the high-voltage hollow double-package reactor is used in different environments and factors, the high-voltage hollow double-package reactor is easily damaged in different degrees, and the high-voltage hollow double-package reactor is inconvenient to normally use in special environments.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a method for performing a resonance power frequency high-voltage test on a high-voltage hollow double-packet reactor.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for carrying out a resonance power frequency high-voltage test on a high-voltage hollow double-packet reactor is used for testing the high-voltage hollow double-packet reactor, and comprises the following steps:
s1, selecting a laboratory, and setting an indoor temperature interval to be-15-40 ℃;
the relative humidity was: RH is less than or equal to 90 percent;
the altitude is: less than or equal to 3500 m.
S2, selecting the length of one kilometer and the end surface area of 500mm2110KV cable;
meanwhile, the capacitance is less than or equal to 0.169 uF;
test frequency: 30-300 Hz;
the test voltage U is less than or equal to 128 kV.
S3, electrically connecting one end of the cable in the S2 with the reactor, and simultaneously electrically connecting the other end of the cable with a working power supply, wherein the current of the input end of the working power supply is single 220V or three-phase 380V +/-10% and 50 Hz;
s4, the waveform of the resonance voltage in S3 is a sine wave, and the waveform distortion rate is less than 1.0 percent; meanwhile, rated output voltage is 0-128 KV; and the maximum test capacity is 640 KVA; the maximum current of the tested object is 5A;
s5, when the reactor test is carried out in the laboratory of S1, the indoor noise is less than or equal to 50 dB;
and S6, under the condition of full power output, the continuous working time of the reactor is 60 min.
Preferably, the test currents are as follows:
I＝2πfCUtest for＝2π×35×0.169×10-6×128×103＝4.7A
Corresponding to the inductance of the reactor:
L＝1/ω2C＝122H
preferably, the twelve reactors are designed, four sections of the twelve reactors are connected in series and three sections of the twelve reactors are connected in parallel, so that the parameter of a single reactor is 53.3kVA/32kV/1.66A/92H, and the total capacity of the device is 640 VA.
Preferably, the capacity of the device is determined to be 640kVA/128kV, twelve reactors are provided, the single reactor is 53.3kVA/32kV/1.66A/92H, and the reactor combination can meet the test requirements of the tested products.
Preferably, the relationship used in the test is as follows:
preferably, the main test components are as follows:
preferably, the method comprises the steps of starting a test (adjusting the altitude pressure of the indoor space, adjusting the temperature of the indoor space and adjusting the humidity of the indoor space), inputting current and controlling noise (controlling the Hertz output rate, controlling the voltage and controlling the capacitance), recording test result data of the reactor in different time periods or under different factors, summarizing the data, and summarizing the test.
Preferably, the high-voltage hollow double-package reactor is placed on the workbench, the high-voltage hollow double-package electric controller is installed in the variable-frequency power supply control box, and a power inlet of the variable-frequency power supply control box is electrically connected with a cable.
Preferably, the excitation transformer, the high-voltage resonance reactor and the capacitive voltage divider are all arranged inside the variable-frequency power supply control box, and the variable-frequency power supply control box is arranged in a laboratory.
Preferably, there are three different length models of cable, and the end diameters of the three cables are the same.
The invention has the following beneficial effects:
1. according to the method for carrying out the resonance power frequency high-voltage test on the high-voltage hollow double-wrapped reactor, cables and a plurality of groups of reactors with different lengths are selected, the cables and the reactors are installed in the variable frequency power supply control box, the high-voltage resonance power frequency high-voltage test on the high-voltage hollow double-wrapped reactor is facilitated, the safety and the stability in the test process are facilitated to be increased through the different cables and the plurality of groups of reactors, and therefore the test effect that the method has the effect of increasing the high-voltage hollow double-wrapped reactor is achieved.
2. Through setting up variable frequency power supply controller, exciting transformer, high-pressure resonance reactor and capacitive voltage divider, be convenient for increase the experimental effect of high-pressure hollow double-packet reactor, through the test result, make the electric reactor of different section numbers and group number connect the cable of different length, simultaneously, through the result of experiment under different environment and factor, increase the result of use of reactor to reach this method of carrying out resonance power frequency high-voltage test to high-pressure hollow double-packet reactor and increased the effect that the reactor used under special environment.
Drawings
Fig. 1 is a block diagram structural schematic diagram of a method for performing a resonance power-frequency high-voltage test on a high-voltage hollow double-clad reactor provided by the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example 1
Referring to fig. 1, a method for performing a resonance power frequency high-voltage test on a high-voltage hollow double-clad reactor is used for a process of testing the high-voltage hollow double-clad reactor, and the test method specifically comprises the following steps:
s1, selecting a laboratory, and setting an indoor temperature interval to be-15-40 ℃;
the relative humidity was: RH is less than or equal to 90 percent;
the altitude is: less than or equal to 3500 m.
S2, selecting the length of one kilometer and the end surface area of 500mm2110KV cable;
meanwhile, the capacitance is less than or equal to 0.169 uF;
test frequency: 30-300 Hz;
the test voltage U is less than or equal to 128 kV.
S3, electrically connecting one end of the cable in the S2 with the reactor, and simultaneously electrically connecting the other end of the cable with a working power supply, wherein the current of the input end of the working power supply is single 220V or three-phase 380V +/-10% and 50 Hz;
s4, the waveform of the resonance voltage in S3 is a sine wave, and the waveform distortion rate is less than 1.0 percent; meanwhile, rated output voltage is 0-128 KV; and the maximum test capacity is 640 KVA; the maximum current of the sample was 5A.
S5, when the reactor test is carried out in the laboratory of S1, the indoor noise is less than or equal to 50 dB;
and S6, under the condition of full power output, the continuous working time of the reactor is 60 min.
S7, starting tests (space altitude pressure adjustment, space temperature adjustment and space humidity adjustment), inputting current and controlling noise (controlling Hertz output rate and controlling voltage and controlling capacitance), recording test result data of the reactor in different time periods or under different factors, summarizing data, and summarizing tests.
The test currents were as follows:
I＝2πfCUtest for＝2π×35×0.169×10-6×128×103＝4.7A
Corresponding to the inductance of the reactor:
L＝1/ω2C＝122H
twelve electric reactors are designed, four sections of the twelve electric reactors are connected in series and three groups of the twelve electric reactors are used in parallel, the parameter of a single electric reactor is 53.3kVA/32kV/1.66A/92H, and the total capacity of the device is 640 VA.
The capacity of the device is determined to be 640kVA/128kV, twelve reactors are saved, the single section of each reactor is 53.3kVA/32kV/1.66A/92H, and the reactor combination can meet the test requirements of the tested products.
The use relationship in the test is as follows:
the main test parts are as follows:
the specific parameters of the variable frequency power supply control box are as follows:
the input working power supply is single-phase 220V or three-phase 380V +/-10 percent and 50 Hz;
and the output voltage is 0-400V;
the maximum current was 62.5A;
output frequency: 30-300 HZ, frequency adjustment fineness of 0.1HZ and instability degree of less than 0.05%;
the rated output capacity is: 25 KVA.
The test mode of the variable frequency power supply control box is divided into two modes, one mode is a manual test mode, and the other mode is an automatic test mode.
The specific parameters of the excitation transformer are as follows:
rated capacity: 25 KVA;
input voltage: 0-400V;
output voltage: 5 KV;
the working frequency range is as follows: 30-300 HZ.
High-voltage, low-current, short-time, low-voltage, high-current and long-time test sample tests are separately processed, different tap excitation transformers are configured to ensure that the maximum utilization rate and the light weight of the excitation transformer are ensured, and a 1.5kV output end is used in the test of electrical equipment such as a 10kV cable; when electrical equipment such as a 35kV cable and the like is tested, a 3kV output end is used; a 110kV cable and a 13.8kV generator are used for testing, wherein a 5kV output end is used; during the test of the 110kV transformer substation, a 15kV output end is used.
The specific parameters of the high-voltage resonance reactor are as follows:
rated maximum operating voltage: 32 KV;
rated maximum operating current: 1.66A;
rated capacity: 53.3 KVA;
rated inductance: 92H;
the working frequency is as follows: 30-300 HZ.
The high-voltage resonance reactor adopts vacuum epoxy integral casting, is externally provided with a hydrophobic layer, has good moisture resistance, has an insulation heat-resistant grade F, meets the national standard requirement of dry type reactors, is provided with an anti-vortex insulation base, and is grouped and overlapped when being connected in series, so as to reduce the overall height, reduce the labor intensity and enhance the safety and stability.
The specific parameters of the capacitive voltage divider are as follows:
the working mode is as follows: a pure capacitance type;
rated voltage: 130KV effective value;
a rated capacitance; 800 pF;
the working frequency is as follows: 30-300 HZ;
measurement error: is less than 1.5 percent.
In this embodiment: through selecting for use the cable and the multiunit reactor of different length to make cable and reactor install in variable frequency power supply control box, be convenient for carry out the high-pressure test of resonance power frequency to the hollow two packet reactors of high pressure, through different cable and multiunit reactor, be convenient for increase security and stability in the testing process, thereby reach the experimental effect that this method has the hollow two packet reactors of increase high pressure.
Example 2
When the experiment began, place hollow two packet of reactors of high pressure on the workstation, and the hollow two packet of automatically controlled wares of high pressure are installed in variable frequency power supply control box, variable frequency power supply control box's the power inlet electricity is connected with the cable, the excitation transformer, high-pressure resonance reactor and capacitive voltage divider all set up inside variable frequency power supply control box, and variable frequency power supply control box sets up in the laboratory, there are the cables of three kinds of different length models, and the terminal surface diameter of three kinds of cables is the same, adjust different humidity, temperature, atmospheric pressure data.
Starting a test (adjusting the altitude pressure of the indoor space, the temperature of the indoor space and the humidity of the indoor space), inputting current and controlling noise (controlling the Hertz output rate, controlling the voltage and controlling the capacitance), recording test result data of the reactor in different time periods or under different factors, summarizing data and summarizing the test.
Meanwhile, after the test is finished, detailed parameters during the test can be displayed in a test result interface, the parameters can be stored in a memory inside the variable frequency power supply control box, the memory is a nonvolatile memory and can store test records for two hundred times, the stored test result data can be displayed on a screen when test data are inquired, when the high-voltage side has flashover to the ground, the whole set of device is automatically cut off, the damage to test equipment and a human body cannot be caused, and electrons in the variable frequency power supply cannot be broken down.
In this embodiment, through setting up variable frequency power supply controller, exciting transformer, high-pressure resonance reactor and capacitive voltage divider, be convenient for increase the experimental effect of high-pressure hollow double-packet reactor, through the test result, make the cable of different section numbers and group number of reactor connection different length, simultaneously, through the result of experiment under different environment and factor, increase the result of use of reactor to reach this method of carrying out resonance power frequency high-voltage test to high-pressure hollow double-packet reactor and increased the result of use of reactor.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (10)
1. A method for carrying out a resonance power frequency high-voltage test on a high-voltage hollow double-package reactor is used for testing the high-voltage hollow double-package reactor and is characterized in that: the method comprises the following steps:
s1, selecting a laboratory, and setting an indoor temperature interval to be-15-40 ℃;
the relative humidity was: RH is less than or equal to 90 percent;
the altitude is: less than or equal to 3500 m.
S2, selecting the length of one kilometer and the end surface area of 500mm2110KV cable;
meanwhile, the capacitance is less than or equal to 0.169 uF;
test frequency: 30-300 Hz;
the test voltage U is less than or equal to 128 kV.
S3, electrically connecting one end of the cable in the S2 with the reactor, and simultaneously electrically connecting the other end of the cable with a working power supply, wherein the current of the input end of the working power supply is single 220V or three-phase 380V +/-10% and 50 Hz;
s4, the waveform of the resonance voltage in S3 is a sine wave, and the waveform distortion rate is less than 1.0 percent; meanwhile, rated output voltage is 0-128 KV; and the maximum test capacity is 640 KVA; the maximum current of the sample was 5A.
S5, when the reactor test is carried out in the laboratory of S1, the indoor noise is less than or equal to 50 dB;
and S6, under the condition of full power output, the continuous working time of the reactor is 60 min.
2. The method for carrying out the resonance power frequency high-voltage test on the high-voltage hollow double-clad reactor according to claim 1, which is characterized in that: the test currents were as follows:
I＝2πfCUtest for＝2π×35×0.169×10-6×128×103＝4.7A
Corresponding to the inductance of the reactor:
L＝1/ω2C＝122H。
3. the method for carrying out the resonance power frequency high-voltage test on the high-voltage hollow double-clad reactor according to claim 1, which is characterized in that: the design of the twelve electric reactors is characterized in that four sections of the twelve electric reactors are connected in series and three groups of the twelve electric reactors are connected in parallel, so that the parameter of a single electric reactor is 53.3kVA/32kV/1.66A/92H, and the total capacity of the device is 640 VA.
4. The method for carrying out the resonance power frequency high-voltage test on the high-voltage hollow double-clad reactor according to claim 3, characterized by comprising the following steps: the capacity of the device is determined to be 640kVA/128kV, twelve reactors are saved, the single section of each reactor is 53.3kVA/32kV/1.66A/92H, and the reactor combination can meet the test requirements of a tested product.
5. The method for carrying out the resonance power frequency high-voltage test on the high-voltage hollow double-clad reactor according to claim 3, characterized by comprising the following steps: the use relationship in the test is as follows:
6. the method for carrying out the resonance power frequency high-voltage test on the high-voltage hollow double-clad reactor according to claim 1, which is characterized in that: the main test parts are as follows:
7. the method for carrying out the resonance power frequency high-voltage test on the high-voltage hollow double-clad reactor according to claim 1, which is characterized in that: starting a test (adjusting the altitude pressure of the indoor space, the temperature of the indoor space and the humidity of the indoor space), inputting current and controlling noise (controlling the Hertz output rate, controlling the voltage and controlling the capacitance), recording test result data of the reactor in different time periods or under different factors, summarizing data and summarizing the test.
8. The method for carrying out the resonance power frequency high-voltage test on the high-voltage hollow double-clad reactor according to claim 7, characterized by comprising the following steps: the high-voltage hollow double-package electric reactor is placed on the workbench, the high-voltage hollow double-package electric controller is installed in the variable-frequency power supply control box, and a power inlet of the variable-frequency power supply control box is electrically connected with a cable.
9. The method for carrying out the resonance power frequency high-voltage test on the high-voltage hollow double-clad reactor according to claim 7, characterized by comprising the following steps: the excitation transformer, the high-voltage resonance reactor and the capacitive voltage divider are all arranged inside the variable-frequency power supply control box, and the variable-frequency power supply control box is arranged in a laboratory.
10. The method for carrying out the resonance power frequency high-voltage test on the high-voltage hollow double-clad reactor according to claim 7, characterized by comprising the following steps: there are three different length type cables, and the end face diameter of the three cables is the same.
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