CN209784481U - climate chamber with high-voltage test function for observing condensation of high-voltage ring main unit - Google Patents
climate chamber with high-voltage test function for observing condensation of high-voltage ring main unit Download PDFInfo
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- CN209784481U CN209784481U CN201920364985.4U CN201920364985U CN209784481U CN 209784481 U CN209784481 U CN 209784481U CN 201920364985 U CN201920364985 U CN 201920364985U CN 209784481 U CN209784481 U CN 209784481U
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- voltage
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- ring main
- condensation
- climate chamber
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Abstract
The utility model discloses a high-tension loop-network cabinets condensation is surveyd possesses climatic chamber of high-pressure test function, including the climatic chamber body, this internal temperature and humidity sensor, humidifier, heater and the control terminal of installing of climatic chamber, control terminal is connected with temperature and humidity sensor, humidifier, heater respectively, still including setting up the high-tension test controller at the climatic chamber body, control terminal is connected with the high-tension test controller through the opto-coupler isolator, and the high-tension test controller is used for providing the impact high voltage for setting up the sample insulator S1 in this internal high-tension loop-network cabinets of climatic chamber. The utility model discloses having added the high-voltage test controller, this high-voltage test controller can realize being used for providing the impact high voltage for setting up the sample insulator in this internal high-voltage ring main unit of climate chamber, accomplishes the high-voltage test of sample insulator, and whole high-voltage test control circuit, produced thunder and lightning impulse voltage accord with the IEC standard, have good application prospect.
Description
Technical Field
The utility model relates to a distribution equipment technical field, concretely relates to high-tension loop-network cabinets condensation observation's weather room that possesses high-voltage testing function.
background
The condensation means that when the water vapor in the air exceeds the maximum containing capacity of the water vapor, the water vapor in the supersaturated air is slowly condensed and separated out to become saturated air, and at the moment, if the air temperature is more than 0, the condensation is generated. In brief, condensation is due to the phenomenon that when a high temperature, high humidity gas encounters a low temperature object, it liquefies into a liquid on its surface when reaching the dew point temperature. In an electric power system, the term "condensation" refers to a phenomenon in which when the temperature of the inner wall surface of the cabinet body of high-voltage circuit equipment such as various mechanism boxes, distribution cabinets, and switch cabinets drops below the dew point temperature, water drops condense on the inner wall surface. Therefore, the temperature and humidity in the outdoor equipment cabinet and the environment must be controlled during the condensation observation experiment.
The outdoor high-voltage ring main unit is particularly suitable for northeast China with severe environment.
At present, a climate chamber for observing condensation of a high-voltage ring main unit can be simulated in an artificial climate environment test chamber, the condensation development process of distribution network equipment under various severe meteorological conditions is simulated by adjusting and controlling parameters such as internal/external temperature and humidity, external ventilation and the like of the outdoor high-voltage ring main unit, the exact occurrence condition and the easy-to-occur part of condensation are obtained, and technical guidance is provided for damp-proof and condensation-proof treatment. However, in the current climate chamber for observing condensation of the high-voltage ring main unit, a high-voltage test environment for performing a high-voltage test impact experiment on the insulator in the high-voltage ring main unit cannot be provided, so that how to increase a high-voltage test function and meet the requirement of a high-voltage test on the insulator in the high-voltage ring main unit in a condensation observation state is a problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
the utility model aims at overcoming current climate chamber that is used for high-tension loop-network cabinets condensation to survey, can't satisfy under the condensation observation state, to the problem of the high-pressure test of high-tension loop-network cabinets internal insulator. The utility model discloses a climate chamber that possesses high-voltage testing function that high-tension loop-network cabinets condensation was surveyd, can be in the required temperature of simulation high-tension loop-network cabinets condensation and humidity, the high-voltage testing controller has been increased, this high-voltage testing controller can realize being used for providing the impact high voltage for setting up the sample insulator in this internal high-tension loop-network cabinets of climate chamber, accomplish the high-voltage test of sample insulator, whole high-voltage testing control circuit, produced thunder and lightning impulse voltage accords with the IEC standard, the circuit is ingenious, the cost is lower, high safety factor, novel structure, the structure is ingenious, and good application prospect has.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
The utility model provides a high tension loop-network cabinets condensation is surveyd possesses climatic chamber of high-voltage testing function, includes the climatic chamber body, this internal temperature and humidity sensor, humidifier, heater and the control terminal of installing of climatic chamber, control terminal is connected with temperature and humidity sensor, humidifier, heater respectively, still including setting up the high-voltage testing controller at the climatic chamber body, control terminal is connected with the high-voltage testing controller through the opto-coupler isolator, the high-voltage testing controller is used for providing the impact high voltage for setting up the sample insulator S1 in this internal high tension loop-network cabinets of climatic chamber.
in the climate chamber with high-voltage testing function for condensation observation of the high-voltage ring main unit, the high-voltage testing controller comprises a voltage regulator T1, an isolation transformer G1, a filter L1, a transformer B1, a capacitive voltage divider F1, an impact waveform tester Y1, a protective ball gap G2 and a transient voltage suppressor TVS1,
The primary side of the voltage regulator T1 is externally connected with 380V power frequency voltage, the secondary side of the voltage regulator T1 is sequentially connected with an isolation transformer G1, a filter L1 and a transformer B1,
The positive output end of the transformer B1 is respectively connected with one end of a capacitive voltage divider F1, one end of a test insulator S1 and one end of a protection resistor R2 through a protection resistor R1, the other end of one end of the protection resistor R2 is connected with one end of a protection ball gap G2, the other end of the protection ball gap G2 is connected with the ground,
The other end of the capacitive voltage divider F1 is connected with the ground, the lead terminal of the capacitive voltage divider F1 is connected with one input terminal of the impulse waveform tester Y1 through a matching resistor Rm, the negative output terminal of the transformer B1 is connected with the ground,
The other end of the test insulator S1 is respectively connected with one end of a transient voltage suppressor TVS1, one end of a sampling non-inductive resistor R3 and one end of a matching resistor Rn, the other end of the transient voltage suppressor TVS1 and the other end of the sampling non-inductive resistor R3 are commonly connected with the ground,
The other end of the matching resistor Rn is connected with the other input end of the impulse waveform tester Y1, and two grounding terminals of the impulse waveform tester Y1 are respectively connected with the ground.
In the climate chamber with the high-voltage test function for condensation observation of the high-voltage ring main unit, the control disconnecting link K1 and the fuse F2 are connected in series to one input end of the primary side of the voltage regulator T1.
the climatic chamber that possesses high-voltage test function of aforesaid condensation of high-voltage ring main unit is surveyd, capacitive voltage divider F1 is aluminium foil lead wire crimping formula series structure, including electric capacity C1 and electric capacity C2 that establish ties mutually, electric capacity C1 and electric capacity C2 junction are capacitive voltage divider F1's terminal.
in the climate chamber with the high-voltage test function for observing the condensation of the high-voltage ring main unit, the pressure regulator T1 is a contact type pressure regulator, and the model is TDJA-56; the type of the isolation transformer G1 is GGB-50/0.38/0.4; the model of the filter L1 is: CLBQ-3-5/0.4; the type of the transformer B1 is YDJ-350.
in the climate chamber with the high-voltage test function for observing the condensation of the high-voltage ring main unit, the withstand voltage of the protection resistors R1 and R2 is 250kV, and the resistance value is 105k omega.
In the climate chamber with the high-voltage test function for observing the condensation of the high-voltage ring main unit, the matching resistors Rm and Rn are noninductive resistors with resistance values of 50 Ω.
In the climate chamber with the high-voltage test function for observing the condensation of the high-voltage ring main unit, the model of the transient voltage suppressor TVS1 is 6KEP150 CA.
The utility model has the advantages that: the utility model discloses a climate chamber that possesses high-voltage testing function that high-tension loop-network cabinets condensation was surveyd, can be in the required temperature of simulation high-tension loop-network cabinets condensation and humidity, the high-voltage testing controller has been increased, this high-voltage testing controller can realize being used for providing the impact high voltage for setting up the sample insulator in this internal high-tension loop-network cabinets of climate chamber, accomplish the high-voltage test of sample insulator, whole high-voltage testing control circuit, produced thunder and lightning impulse voltage accords with the IEC standard, the circuit is ingenious, the cost is lower, high safety factor, novel structure, the structure is ingenious, and good application prospect has.
Drawings
fig. 1 is a schematic structural view of a climate chamber with a high-voltage testing function for observing condensation of a high-voltage ring main unit of the present invention;
Fig. 2 is a circuit diagram of the high voltage test controller of the present invention.
The designations in the drawings have the following meanings:
1: a climate chamber body; 2: a temperature and humidity sensor; 3: a humidifier; 4: a heater; 5: a control terminal; 6: a high voltage test controller; 7: an opto-isolator.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-2, the utility model discloses a climate chamber that possesses high-voltage testing function that high-tension loop-network cabinets condensation was surveyd, including climate chamber body 1, install temperature and humidity sensor 2, humidifier 3, heater 4 and control terminal 5 in the climate chamber body 1, control terminal 5 is connected with temperature and humidity sensor 2, humidifier 3, heater 4 respectively, can be at the required temperature of simulation high-tension loop-network cabinets condensation and humidity, still including setting up the high-voltage testing controller 6 at climate chamber body 1, control terminal 5 is connected with high-voltage testing controller 6 through opto-coupler isolator 7, high-voltage testing controller 6 is used for providing the impact high voltage for setting up the sample insulator S1 in the high-tension loop-network cabinets in climate chamber body 1.
preferably, the high voltage test controller 6 comprises a voltage regulator T1, an isolation transformer G1, a filter L1, a transformer B1, a capacitive voltage divider F1, a shock wave tester Y1, a protective ball gap G2, a transient voltage suppressor TVS1,
The primary side of the voltage regulator T1 is externally connected with 380V power frequency voltage, the secondary side of the voltage regulator T1 is sequentially connected with an isolation transformer G1, a filter L1 and a transformer B1,
The positive output end of the transformer B1 is respectively connected with one end of a capacitive voltage divider F1, one end of a test insulator S1 and one end of a protection resistor R2 through a protection resistor R1, the other end of one end of the protection resistor R2 is connected with one end of a protection ball gap G2, the other end of the protection ball gap G2 is connected with the ground,
The other end of the capacitive voltage divider F1 is connected with the ground, the lead terminal of the capacitive voltage divider F1 is connected with one input terminal of the impulse waveform tester Y1 through a matching resistor Rm, the negative output terminal of the transformer B1 is connected with the ground,
The other end of the test insulator S1 is respectively connected with one end of a transient voltage suppressor TVS1, one end of a sampling non-inductive resistor R3 and one end of a matching resistor Rn, the other end of the transient voltage suppressor TVS1 and the other end of the sampling non-inductive resistor R3 are commonly connected with the ground,
The other end of the matching resistor Rn is connected with the other input end of the impulse waveform tester Y1, and two grounding terminals of the impulse waveform tester Y1 are respectively connected with the ground.
preferably, a control knife switch K1 and a fuse F2 are connected in series to one input end of the primary side of the voltage regulator T1, so that the whole high-voltage test controller 6 can be protected, and when the current is too large, the fuse F2 is disconnected, thereby preventing electronic components in the high-voltage test controller 6 from being burnt out.
Preferably, the capacitive voltage divider F1 is an aluminum foil lead sheet crimping type series structure, and includes a capacitor C1 and a capacitor C2 that are connected in series, the junction of the capacitor C1 and the capacitor C2 is the lead end of the capacitive voltage divider F1, and the capacitive voltage divider F1 has low cost and is convenient for wiring and installation.
Preferably, the voltage regulator T1 is a contact voltage regulator, and the model is TDJA-56; the type of the isolation transformer G1 is GGB-50/0.38/0.4; the model of the filter L1 is: CLBQ-3-5/0.4; the type of the transformer B1 is YDJ-350.
Preferably, the protective resistors R1 and R2 have a withstand voltage of 250kV and a resistance of 105k Ω.
Preferably, the matching resistors Rm and Rn are non-inductive resistors with resistance values of 50 Ω.
preferably, the transient voltage suppressor TVS1 is model 6KEP150 CA.
the utility model discloses a high-voltage test controller 6, rated current are 4A, and short-circuit current is greater than 10A, can satisfy external insulation test's under the high humidity condition requirement completely, and this high-voltage test controller 6's impulse voltage generator system, produced thunder and lightning impulse voltage accord with the IEC standard, and the theory of operation is as follows: the primary side of a voltage regulator T1 is externally connected with 380V power frequency voltage, the secondary side of the voltage regulator T1 is sequentially connected with an isolation transformer G1, a filter L1 and a transformer B1, alternating current can be converted into safe, reliable and stable direct current, the direct current generates impact voltage meeting requirements through a protective ball gap G2, a high-voltage test is carried out on a test piece insulator S1, a waveform test is carried out on the test piece insulator S1 to which the impact voltage is applied through an impact waveform tester Y1, whether the test piece insulator S1 achieves an insulation effect or not is analyzed, in addition, the impact waveform tester Y1 is subjected to resistance matching, the test accuracy is improved, a transient voltage suppressor TVS1 is added to the impact waveform tester Y1, the impact waveform tester Y1 is protected, and the stability of the work test of the impact waveform tester is improved.
To sum up, the utility model discloses a climate chamber that possesses high-voltage testing function that high-voltage ring main unit condensation was surveyd can be when the required temperature of simulation high-voltage ring main unit condensation and humidity, high-voltage testing controller has been increased, this high-voltage testing controller can realize being used for providing the impact high voltage for setting up the sample insulator in this internal high-voltage ring main unit of climate chamber, accomplish the high-voltage test of sample insulator, whole high-voltage testing control circuit, produced thunder and lightning impulse voltage accords with the IEC standard, the circuit is ingenious, the cost is lower, high safety factor, novel structure, the structure is ingenious, and good application prospect has. The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a high-tension loop-network cabinets condensation is surveyd possesses climatic chamber of high-pressure test function, includes climatic chamber body (1), install temperature and humidity sensor (2), humidifier (3), heater (4) and control terminal (5) in climatic chamber body (1), control terminal (5) are connected its characterized in that with temperature and humidity sensor (2), humidifier (3), heater (4) respectively: still including setting up high-voltage test controller (6) at climate chamber body (1), control terminal (5) are connected with high-voltage test controller (6) through opto-isolator (7), high-voltage test controller (6) are used for providing the impact high voltage for setting up the sample insulator S1 in climate chamber body (1) high-voltage ring main unit.
2. The climate chamber with high-voltage testing function for observing condensation of the high-voltage ring main unit according to claim 1, wherein: the high-voltage test controller (6) comprises a voltage regulator T1, an isolation transformer G1, a filter L1, a transformer B1, a capacitive voltage divider F1, a shock wave tester Y1, a protective ball gap G2 and a transient voltage suppressor TVS1,
The primary side of the voltage regulator T1 is externally connected with 380V power frequency voltage, the secondary side of the voltage regulator T1 is sequentially connected with an isolation transformer G1, a filter L1 and a transformer B1,
The positive output end of the transformer B1 is respectively connected with one end of a capacitive voltage divider F1, one end of a test insulator S1 and one end of a protection resistor R2 through a protection resistor R1, the other end of one end of the protection resistor R2 is connected with one end of a protection ball gap G2, the other end of the protection ball gap G2 is connected with the ground,
The other end of the capacitive voltage divider F1 is connected with the ground, the lead terminal of the capacitive voltage divider F1 is connected with one input terminal of the impulse waveform tester Y1 through a matching resistor Rm, the negative output terminal of the transformer B1 is connected with the ground,
the other end of the test insulator S1 is respectively connected with one end of a transient voltage suppressor TVS1, one end of a sampling non-inductive resistor R3 and one end of a matching resistor Rn, the other end of the transient voltage suppressor TVS1 and the other end of the sampling non-inductive resistor R3 are commonly connected with the ground,
The other end of the matching resistor Rn is connected with the other input end of the impulse waveform tester Y1, and two grounding terminals of the impulse waveform tester Y1 are respectively connected with the ground.
3. the climate chamber with high-voltage testing function for observing condensation of the high-voltage ring main unit according to claim 2, wherein: and a control knife switch K1 and a fuse F2 are connected in series with one input end of the primary side of the voltage regulator T1.
4. the climate chamber with high-voltage testing function for observing condensation of the high-voltage ring main unit according to claim 2, wherein: the capacitive voltage divider F1 is an aluminum foil lead sheet crimping type series connection structure and comprises a capacitor C1 and a capacitor C2 which are connected in series, and the joint of the capacitor C1 and the capacitor C2 is a lead end of a capacitive voltage divider F1.
5. the climate chamber with high-voltage testing function for observing condensation of the high-voltage ring main unit according to claim 2, wherein: the voltage regulator T1 is a contact voltage regulator with model number TDJA-56; the type of the isolation transformer G1 is GGB-50/0.38/0.4; the model of the filter L1 is: CLBQ-3-5/0.4; the type of the transformer B1 is YDJ-350.
6. The climate chamber with high-voltage testing function for observing condensation of the high-voltage ring main unit according to claim 2, wherein: the withstand voltage of the protective resistors R1 and R2 is 250kV, and the resistance value is 105k omega.
7. The climate chamber with high-voltage testing function for observing condensation of the high-voltage ring main unit according to claim 2, wherein: the matching resistors Rm and Rn are non-inductive resistors with resistance values of 50 omega.
8. The climate chamber with high-voltage testing function for observing condensation of the high-voltage ring main unit according to claim 2, wherein: the model number of the transient voltage suppressor TVS1 is 6KEP150 CA.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920364985.4U CN209784481U (en) | 2019-03-21 | 2019-03-21 | climate chamber with high-voltage test function for observing condensation of high-voltage ring main unit |
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| CN201920364985.4U CN209784481U (en) | 2019-03-21 | 2019-03-21 | climate chamber with high-voltage test function for observing condensation of high-voltage ring main unit |
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| CN209784481U true CN209784481U (en) | 2019-12-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111650245A (en) * | 2020-07-10 | 2020-09-11 | 天津大学 | System and method for testing flameless combustion spontaneous combustion temperature of combustible gas in high-pressure environment |
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2019
- 2019-03-21 CN CN201920364985.4U patent/CN209784481U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111650245A (en) * | 2020-07-10 | 2020-09-11 | 天津大学 | System and method for testing flameless combustion spontaneous combustion temperature of combustible gas in high-pressure environment |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 Termination date: 20210321 |