CN105655100A - 10kV-level epoxy resin cast dry-transformer - Google Patents
10kV-level epoxy resin cast dry-transformer Download PDFInfo
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- CN105655100A CN105655100A CN201610169551.XA CN201610169551A CN105655100A CN 105655100 A CN105655100 A CN 105655100A CN 201610169551 A CN201610169551 A CN 201610169551A CN 105655100 A CN105655100 A CN 105655100A
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- transformer
- epoxy resin
- treater
- dry type
- conversion unit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/24—Magnetic cores
- H01F27/25—Magnetic cores made from strips or ribbons
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
- H01F1/153—Amorphous metallic alloys, e.g. glassy metals
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/40—Structural association with built-in electric component, e.g. fuse
- H01F27/402—Association of measuring or protective means
- H01F2027/406—Temperature sensor or protection
Abstract
The invention provides a 10kV-level epoxy resin cast dry-transformer which comprises a transformer body and a transformer housing. The transformer body comprises a transformer skeleton, an iron core body and a three-phase coil winding; the 10kV-level epoxy resin cast dry-transformer is additionally provided with a processor, an alarm system, three temperature sensors, a temperature-humidity sensor, a three-phase current transformer, a neutral point current transformer, an iron core current transformer, a local discharge ultrahigh-frequency probe and a vibration sensor; the temperature sensors, the three-phase current transformer, the neutral point current transformer, the iron core current transformer and the vibration sensor are all connected with the processor and the transformer body; both the temperature-humidity sensor and the local discharge ultrahigh-frequency probe are connected with the processor and the transformer housing; and the transformer skeleton is coated with an anti-corrosion protection layer. The 10kV-level epoxy resin cast dry-transformer provided by the invention is low in no-load loss, high in mechanical and electrical strength and high in safety coefficient; meanwhile, the transformer can be monitored in real time so as to timely find hidden faults.
Description
Technical field
The present invention relates to transformer technology field, particularly relate to a kind of machinery, electrical strength height, be convenient to the 10kV level epoxy resin pouring dry type transformer of monitor in real time.
Background technology
Transformer utilizes the principle of electromagnetic induction to change the device of voltage of alternating current, and main function has: voltage conversion, current transformation, impedance conversion, isolation, voltage stabilizing etc. Transformer is the important equipment in generating, power supply and electricity consumption enterprise, and it is also in very crucial status in electrical network, is ensure power grid security, run and people produce and household electricity is extremely important equipment reliably. It is divided into by the type of cooling: dry type transformer, oil-filled transformer etc., wherein, dry type transformer relies on convection of air to cool, briefly dry type transformer just refers to and is generally used for spot lighting, electronic circuit, mechanical means etc. by the transformer that unshakable in one's determination and winding is not immersed in transformer oil. The structure of transformer and the material of making directly affect quality and the safety of power supply.
Common transformer, as CN103177853B discloses electric locomotive transformer, do not possess supervisory system, and for example CN204834263U discloses a kind of intelligent temperature control dry type transformer, disclose only temperature detection and Controlling System, do not possess comprehensive real time monitoring apparatus, all can not meet on-line monitoring, terminal client cannot find the hidden danger that transformer exists, cannot the various short troubles of Timeliness coverage dry type transformer, the faults such as Abnormal Insulation state and electric discharge property, staff just can only can make corresponding remedial measures after dry type transformer goes wrong, breakdown maintenance must when have a power failure operation, seriously have impact on the application of the electric power of terminal, also have impact on the work-ing life of dry type transformer.
Summary of the invention
In order to overcome, existence in above-mentioned prior art is mechanical, electrical strength is low, and overload capacity is weak, and the problems such as safety performance is low, shortage monitor in real time, the present invention provides a kind of 10kV level epoxy resin pouring dry type transformer.
A kind of kV level poured with epoxy resin intelligence dry type transformer provided by the invention, comprises transformer body and transformer casing, and transformer body comprises transformer framework, the iron-core workpiece that is located in transformer framework and the three-phase coil winding being located at outside iron-core workpiece;Being coated with corrosion protection layer outside transformer framework, iron-core workpiece comprises the heart post of the vertical setting that three amorphous alloy strips are wound into and connects upper iron yoke, the lower yoke at three upper and lower two ends of heart post; Also it is provided with treater, warning, three temperature sensors, humiture sensor, three-phase current transformer, neutral point current mutual inductor, iron core current transformer, local discharge superhigh frequencies probe and vibration transducer, wherein, temperature sensor, three-phase current transformer, neutral point current mutual inductor, iron core current transformer and vibration transducer are all connected with treater and transformer body, humiture sensor and local discharge superhigh frequency probe are all connected with treater and transformer casing, and warning is located on transformer casing.
In some embodiments, treater is located at inside transformer casing, comprising: receive the judging unit that unit is connected with reception unit, and the transmission unit being connected with judging unit, and treater is processor of single chip computer.
In some embodiments, the upper end of three low pressure windings is located at by temperature sensor, and temperature sensor comprises: the conversion unit that temperature collecting cell is connected with temperature collecting cell, and the analog to digital conversion unit being connected with conversion unit.
In some embodiments, humiture sensor is located at inside transformer casing, three-phase current transformer is located on the three-phase low-voltage copper row of transformer body, on the neutral point copper row that neutral point current mutual inductor is located on transformer body, iron core current transformer is located at the ground lug place of iron-core workpiece, local discharge superhigh frequency probe is located in transformer transformer casing, is positioned at above transformer body, and skeleton side is located at by vibration transducer.
In some embodiments, humiture sensor comprises: the 2nd conversion unit that warm and humid collecting unit is connected with warm and humid collecting unit, and the 2nd analog to digital conversion unit being connected with the 2nd conversion unit.
In some embodiments, vibration transducer comprises: the 3rd conversion unit that the 3rd collecting unit is connected with the 3rd collecting unit, and the 3rd analog to digital conversion unit being connected with the 3rd conversion unit.
In some embodiments, three temperature sensors, humiture sensor, three-phase current transformer, neutral point current mutual inductor, iron core current transformer, local discharge superhigh frequency probe and vibration transducer are connected with treater by transmission over radio module respectively, and treater is connected with warning by circuit.
In some embodiments, also comprising some cold blast engines, cold blast engine is located at below coil winding, and cold blast engine is connected with treater.
In some embodiments, also comprising an indicating system, indicating system is connected with treater.
In some embodiments, corrosion protection layer is acrylic polymers corrosion-mitigation scale-inhibition layer.
Compared with prior art, the useful effect of a kind of 10kV level epoxy resin pouring dry type transformer provided by the invention is:
1, the iron-core workpiece that amorphous alloy strips is wound into, reduce unloaded loss, reduce the energy consumption of transformer itself, it is to increase the service efficiency of the energy, reaches energy-conservation effect; After solidification, to form firm round shape overall for coil winding, makes that transformer has physical strength height, electrical strength height, overload capacity is strong, shelf depreciation is little, the characteristic of perfect heat-dissipating, Short Circuit withstand, lightning impulse resistant level height simultaneously, good reliability; The glass fibre being wound around coil winding has from putting out characteristic, can not produce electric arc because of short circuit, therefore have fire-retardant, explosion-proof characteristic.
2, coil is nonhygroscopic; add that transformer framework surface is all coated with acrylic polymers corrosion-mitigation scale-inhibition layer; therefore can run in 100% relative humidity and other severe environment; intermitten service; without the need to dehumidify; meanwhile, acrylic polymers is adopted also can not to cause environmental pollution as corrosion protection layer.
3, set temperature Controlling System, is convenient to monitoring coil winding temperature, and whether neutral point current mutual inductor, for monitoring whether three-phase load balances, has electric leakage, whether has the situations such as insulation infringement; Iron core current transformer is for gathering iron-core workpiece grounding current signal; Humiture sensor, for monitoring the transformer Working environment of transformer transformer casing inside, prevents temperature and humidity in housing from exceeding normal range; Local discharge superhigh frequency probe can the situation of Real-Time Monitoring and display shelf depreciation, and warning and indicating system are set, for staff judges that fault type and position provide foundation.
4, the present invention provides a kind of 10kV level epoxy resin pouring dry type volume of transformer little, occupation of land space is few, weight is light, installation costs is low, do not need the problem considering oil extraction pond, fire prevention fire service and standby power supply, in addition, because the possibility of fire and blast need not be considered, therefore dispersible and it is arranged on load center, fully near electricity consumption point, thus reduce circuit cost, save expensive low-voltage equipment expense.
Accompanying drawing explanation
The structural representation that a kind of 10kV level epoxy resin pouring dry type transformer of a kind of embodiment that Fig. 1 provides for invention is located in transformer casing;
Fig. 2 is the structural representation of a kind of a kind of 10kV level poured with epoxy resin intelligence dry type transformer implementing mode provided by the invention;
Fig. 3 is the sectional view of the intelligence dry type transformer coil winding of a kind of 0kV level poured with epoxy resin shown in Fig. 2;
Fig. 4 is the structure block diagram of Controlling System in a kind of a kind of 10kV level poured with epoxy resin intelligence dry type transformer implementing mode provided by the invention;
Fig. 5 is the structural representation of treater in the Controlling System shown in Fig. 4;
Fig. 6 is the structural representation of temperature sensor in the Controlling System shown in Fig. 4;
Fig. 7 is the structural representation of humiture sensor in the Controlling System shown in Fig. 4;
Fig. 8 is the structural representation of vibration transducer in the Controlling System shown in Fig. 4.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further elaborated. It is to be understood that specific embodiment described herein is only in order to explain the present invention, it is not intended to limit the present invention.
As shown in Figure 1 to Figure 3, the present invention discloses a kind of 10kV level epoxy resin pouring dry type transformer, comprising transformer casing 7 and transformer body 20, transformer body 20 comprises transformer framework 1, the iron-core workpiece 2 that is located in transformer framework 1 and the three-phase coil winding 3 being set around outside iron-core workpiece 2.
As shown in Figure 1, transformer casing 7 is located at outside transformer body 20, and transformer body 20 is done further safeguard protection. In this enforcement mode of the present invention, transformer casing 7 adopts stainless steel or aluminum alloy materials to make. The degree of protection of the transformer casing 7 that employing stainless steel is made reaches IP20, the degree of protection of the transformer casing 7 that employing aluminum alloy materials is made reaches IP23, the solid foreign materials that IP20 shell can prevent diameter to be greater than 12mm enters, IP23 shell more have concurrently prevent with vertical line 60 �� of angles within water droplet flow into, be therefore applicable to outdoor operation.
As shown in Figure 2; transformer framework 1 comprises upper clamping piece 101, lower clamping piece 102 and base 103; upper clamping piece 101, lower clamping piece 102 and base 103 surface are all coated with corrosion protection layer; as preferably, corrosion protection layer adopts acrylic polymers that upper clamping piece 101, lower clamping piece 102 and base 103 are carried out corrosion-mitigation scale-inhibition process.
As depicted in figs. 1 and 2, iron-core workpiece 2 comprises the heart post 201 of the vertical setting that three amorphous alloy strips are wound into and connects the upper iron yoke at three heart post about 201 two ends, lower yoke, and three heart posts 201, upper iron yoke and lower iron 203 yoke form " day " font of a lying. The upper clamping piece 101 of transformer framework 1 clamps upper iron yoke, lower clamping piece 102 clamps lower yoke, upper clamping piece 101 and lower clamping piece 102 are bolted clamping respectively, and upper clamping piece 101 and lower clamping piece 102 are for fastening iron-core workpiece 2 and coil winding 3, and lower clamping piece 102 is fixed on base 103.
As shown in Figure 1, as preferably, some cushion blocks 15 it are provided with between the upper surface of upper clamping piece 101 and coil winding 3, rubber gasket 16 it is lined with respectively between lower clamping piece 102 and iron-core workpiece 2 and base 103, to alleviate transformer noise operationally, by upper clamping piece 101, the tightening up of lower clamping piece 102, and three-phase coil winding 3 is firmly fixed by some cushion blocks 15, prevent coil winding 3 from moving in upper and lower, direction, left and right, so that iron-core workpiece and coil winding 3 are not subject to the impact of external mechanical stress as far as possible.
As shown in Figure 3, each coil winding 3 includes high pressure winding 302 and low pressure winding 301. Described low pressure winding 301 is the copper cash winding outside the heart post 201 being wound on iron-core workpiece 2 or Copper Foil winding, as preferably, in this enforcement mode of the present invention, low pressure winding 301 is Copper Foil winding; The copper cash winding of high pressure winding 301 for being wound on outside low pressure winding 301. Coil winding 3 arranges glass mat insulation layer 303 between adjacent every layer, coil winding 3 also comprises the not filled epoxy resin poured body that every phase winding is cured as one, every phase winding is made to form a firm entirety, so that transformer has physical strength, electrical strength height, overload capacity is strong, shelf depreciation is little characteristic, good reliability.
In said structure, the glass fibre being wound around coil winding has from putting out characteristic, can not produce electric arc because of short circuit, therefore have fire-retardant, explosion-proof characteristic; The coil of this structure is nonhygroscopic, and upper clamping piece 101, lower clamping piece 102 and base 103 surface are all coated with corrosion protection layer, therefore can run in 100% relative humidity and other severe environment, intermitten service, it is not necessary to dehumidify; In addition, the lower epoxy resin of high heat can not produce toxic gas, free from environmental pollution.
As depicted in figs. 1 and 2, each coil winding 3 is all encapsulated with housing 31, described housing 31 is equipped with the outlet terminal 311 for drawing lead-in wire, upper clamping piece 101 both sides are respectively equipped with high-tension insulator 1011 and low pressure insulator, (low pressure insulating end is not shown), coil winding 3 outlet is drawn from outlet terminal 311 after connection set Dyn11 connects, it is connected from the high voltage lead wires of the high pressure winding of outlet terminal 311 extraction with high-tension insulator 1011, the low-voltage lead that low pressure winding is drawn is connected with low pressure insulator, facilitate user's wiring, high voltage lead wires and low-voltage lead are all wrapped up by insulation tube. in high-tension side, the tap 312 of high pressure winding is exchanged by copper lug 313, facilitates pressure regulation.
As shown in Figure 1, as preferably, being positioned at lower clamping piece 102 side place on the base 103 of transformer body 20 and be provided with cooling blower 4, be provided with treater 501, temperature controlling system, indicating system 6 and a warning 505 in addition, temperature controlling system comprises three temperature sensors 502.Transformer hottest point that is three low pressure winding 301 upper end is located at by temperature sensor 502, and treater 501 is located in transformer casing 7, and indicating system 6 and warning 505 are located on transformer casing 7. As shown in Figure 4, three temperature sensors 502 are connected with transformer body 20 respectively, for gathering low pressure winding 301 temperature; Three temperature sensors 502 are connected with treater 501 by transmission over radio module 504 respectively, and transmission over radio module 504 is for being transferred to treater 501 by the temperature that temperature sensor 502 gathers; Cooling blower 4, indicating system 6 and warning 505 are connected with treater 501; The temperature that treater 501 transmits according to transmission over radio module 504, is sent to cooling blower 4, controlled cooling model blower fan 4 opening and closing and power by control signal, and transformer body 20, according to the control signal Modulating Power of treater 501, is dispelled the heat by cooling blower 4; Each low pressure winding 301 temperature data that transmission over radio module 504 is transmitted by treater 501 sends indicating system 6 to and shows; Simultaneously, treater 501 judges transformer body 20 temperature variations according to the temperature data that transmission over radio module 504 is transmitted, after detecting that the temperature value of transformer body 20 correspondence reaches threshold value, alarm command is sent to warning 505, warning 505 carries out pointing out according to this alarm command and reports to the police, wherein, the warning mode of warning 505 can adopt mode or any one mode in the two of the combination of buzzing and photoflash lamp. Pass through said system, the temperature of transformer body is measured by temperature sensor 502 in real time, feed back to treater 501, the control to transformer body temperature is realized by treater 501, if owing to overlond running or fault cause transformer winding temperature too high, warning 505 gives the alarm, and indicating system 6 shows corresponding coil winding position and temperature value simultaneously. In addition, when employing forces point cold, the input of the temperature height controlled cooling model blower fan 4 of the coil winding 3 recorded according to temperature sensor 502 by treater 501 and excision. Indicating system 6 is connected with temperature sensor 502, the temperature of temperature sensor 502 measuring coil winding 3 is shown by indicating system 6, indicating system 6 accurately, reliable, as reacted the hot(test)-spot temperature of transformer operational process coil winding on the spot, with temperature controlling system with the use of.
As shown in Figure 1 and Figure 4, as preferably, dry type transformer also comprises: three-phase current transformer 8, neutral point current mutual inductor 9, iron core current transformer 10, humiture sensor 11 and local discharge superhigh frequency probe 12. As shown in Figure 1, three-phase current transformer 8 is arranged on the three-phase low-voltage copper row of transformer body 20; On the neutral point copper row that neutral point current mutual inductor 9 is arranged on transformer body 20, for monitoring whether three-phase load balances, whether there is electric leakage, whether have the situations such as insulation infringement; Iron core current transformer 10 is arranged on the iron-core workpiece ground lug place of transformer body 20, for gathering iron-core workpiece grounding current signal; Humiture sensor 11 is arranged on side in transformer transformer casing 7, for monitoring the transformer Working environment of transformer transformer casing 7 inside, prevents temperature and humidity in housing from exceeding normal range; Local discharge superhigh frequency probe 12 is arranged in transformer transformer casing 7, is positioned at the top of transformer body 20, it is possible to the situation of Real-Time Monitoring and display shelf depreciation. As shown in Figure 4, three-phase current transformer 8, neutral point current mutual inductor 9, iron core current transformer 10, humiture sensor 11 and local discharge superhigh frequency probe 12 are connected with treater 501 by transmission over radio module 504 respectively, and treater 501 is connected with indicating system 6 and warning 505 by circuit.Transmission over radio module 504 is for by three-phase current transformer 8, neutral point current mutual inductor 9, iron core current transformer 10, the information of humiture sensor 11 and local discharge superhigh frequency probe 12 collection is transferred to treater 501, treater 501 sends the information received to indicating system 6 and shows, simultaneously after comparative analysis, after the information value of detecting reaches threshold value, alarm command is sent to warning 505, warning 505 carries out pointing out according to this alarm command and reports to the police, wherein, the warning mode of warning 505 can adopt the mode of the combination of buzzing and photoflash lamp, or any one mode in the two. while reporting to the police, indicating system 6 shows trouble spot, for staff judges that fault type and position provide foundation.
As shown in Figure 1 and Figure 4, as preferred further, dry type transformer also comprises and the vibration transducer 14 being connected, and vibration transducer 14 is arranged on upper clamping piece 101 side, and vibration transducer 14 is for monitoring the data such as vibration amplitude and vibration acceleration of transformer body 1. As shown in Figure 4, vibration transducer 14 is connected with treater 501 by transmission over radio module 504, and treater 501 is connected with indicating system 6 and warning 505 by circuit. Transmission over radio module 504 is for being transferred to treater 501 by the information that vibration transducer 14 gathers, treater 501 sends the information received to indicating system 6 and shows, simultaneously after comparative analysis, after the information value of detecting reaches threshold value, alarm command is sent to warning 505, warning 505 carries out pointing out according to this alarm command and report to the police, and wherein, the warning mode of warning 505 can adopt mode or any one mode in the two of the combination of buzzing and photoflash lamp. While reporting to the police, indicating system 6 shows trouble spot, for staff judges that fault type and position provide foundation.
As shown in Figure 4 and Figure 5, treater 501 comprises: for receive the temperature of each transmission over radio module 504 transmission, electric current, the information such as humidity reception unit 5011, for judging whether each information of transformer body 20 correspondence reaches the judging unit 5012 of predetermined threshold value according to receiving the information that unit 5011 receives, and for when each information value of transformer body 20 correspondence reaches threshold value, the transmission unit 5013 transmitted control signal, judging unit 5012 is connected with reception unit 5011, sends unit 5013 and is connected with judging unit 5012. As a kind of optimal way, treater 501 is processor of single chip computer.
As shown in Figure 4 and Figure 6, temperature sensor 502 comprises: the temperature collecting cell 5021 gathering transformer body 20 temperature, for the temperature information that temperature collecting cell 5021 gathers being converted to the conversion unit 5022 of voltage signal, and the voltage signal that conversion unit 5022 is converted to is carried out analog to digital conversion, obtain the analog to digital conversion unit 5023 of voltage digital signal, conversion unit 5022 is connected with temperature collecting cell 5021, and analog to digital conversion unit 5023 is connected with analog to digital conversion unit 5023.
As shown in figs. 4 and 7, humiture sensor 11 comprises: gather the temperature in transformer casing 7 and humidity warm and humid collecting unit 1101, for the temperature information that warm and humid collecting unit 1101 gathers being converted to the 2nd conversion unit 1102 of voltage signal, and the voltage signal that the 2nd conversion unit 1102 is converted to is carried out analog-to-digital 2nd analog to digital conversion unit 1103,2nd conversion unit 1102 is connected with warm and humid collecting unit 1101, and the 2nd analog to digital conversion unit 1103 is connected with the 2nd conversion unit 1102.
As shown in Figure 8, vibration transducer 14 comprises: gather the 3rd collecting unit 1401 becoming transformer body 20 vibratory magnitude information, for the vibratory magnitude information that the 3rd collecting unit 1401 gathers being converted to the 3rd conversion unit 1402 of voltage signal, and the voltage signal that the 3rd conversion unit 1402 is converted to is carried out analog-to-digital 3rd analog to digital conversion unit 1403,3rd conversion unit 1402 is connected with the 3rd collecting unit 1401, and the 3rd analog to digital conversion unit 1403 is connected with the 3rd conversion unit 1402.
Can also network with upper computer in the dry type transformer in present embodiment, it is achieved interconnecting and Long-distance Control of information.
Above-mentioned explanation illustrate and describes the preferred embodiments of the present invention, as previously mentioned, it is to be understood that the present invention is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and in invention contemplated scope described herein, can be changed by technology or the knowledge in above-mentioned instruction or relevant field. And the change that those skilled in the art carry out and change do not depart from the spirit and scope of the present invention, then all should in the protection domain of claims of the present invention.
Claims (10)
1. a 10kV level epoxy resin pouring dry type transformer, comprising transformer body (20) and transformer casing (7), described transformer body (20) comprises transformer framework (1), the iron-core workpiece (2) that is located in described transformer framework (1) and be located at described iron-core workpiece (2) three-phase coil winding (3) outward; It is characterized in that, described transformer framework is coated with corrosion protection layer outside (1); Described iron-core workpiece (2) comprises the heart post (201) of the vertical setting that three amorphous alloy strips are wound into and connects upper iron yoke, the lower yoke at the upper and lower two ends of three heart posts (201);
Also it is provided with treater (501), warning (505), three temperature sensors (502), humiture sensor (11), three-phase current transformer (8), neutral point current mutual inductor (9), iron core current transformer (10), local discharge superhigh frequency probe (12) and vibration transducer (14), wherein temperature sensor (502), three-phase current transformer (8), neutral point current mutual inductor (9), iron core current transformer (10) and vibration transducer (14) are all connected with described treater (501) and described transformer body (20), described humiture sensor (11) and local discharge superhigh frequency probe (12) are all connected with described treater (501) and described transformer casing (7), described warning (505) is located on described transformer casing (7).
2. a kind of 10kV level epoxy resin pouring dry type transformer according to claim 1, it is characterized in that, described transformer casing (7) inner side is located at by described treater (501), comprise: receive the judging unit (5012) that unit (5011) is connected with described reception unit (5011), and the transmission unit (5013) being connected with described judging unit (5012), described treater (501) is processor of single chip computer.
3. a kind of 10kV level epoxy resin pouring dry type transformer according to claim 1, it is characterized in that, the upper end of three described low pressure windings (301) is located at by described temperature sensor (502), described temperature sensor (502) comprising: the conversion unit (5022) that temperature collecting cell (5021) is connected with described temperature collecting cell (5021), and the analog to digital conversion unit (5023) being connected with described conversion unit (5022).
4. a kind of 10kV level epoxy resin pouring dry type transformer according to claim 1, it is characterized in that, described humiture sensor (11) is located at described transformer casing (7) inner side, described three-phase current transformer (8) is located on the three-phase low-voltage copper row of described transformer body (20), on the neutral point copper row that described neutral point current mutual inductor (9) is located on described transformer body (20), described iron core current transformer (10) is located at the ground lug place of described iron-core workpiece (2), described local discharge superhigh frequency probe (12) is located in described transformer transformer casing (7), it is positioned at described transformer body (20) top, described skeleton (1) side is located at by described vibration transducer (14).
5. a kind of 10kV level epoxy resin pouring dry type transformer according to claim 4, it is characterized in that, described humiture sensor (11) comprising: the 2nd conversion unit (1102) that warm and humid collecting unit (1101) is connected with described warm and humid collecting unit (1101), and the 2nd analog to digital conversion unit (1103) being connected with described 2nd conversion unit (1102).
6. a kind of 10kV level epoxy resin pouring dry type transformer according to claim 4, it is characterized in that, described vibration transducer (14) comprising: the 3rd conversion unit (1402) that the 3rd collecting unit (1401) is connected with described 3rd collecting unit (1401), and the 3rd analog to digital conversion unit (1403) being connected with described 3rd conversion unit (1402).
7. a kind of 10kV level epoxy resin pouring dry type transformer according to Claims 2 or 3 or 5 or 6, it is characterized in that, described three temperature sensors (502), described humiture sensor (11), described three-phase current transformer (8), described neutral point current mutual inductor (9), described iron core current transformer (10), described local discharge superhigh frequency probe (12) and described vibration transducer (14) are connected with described treater (501) by transmission over radio module (504) respectively, described treater (501) is connected with described warning (505) by circuit.
8. a kind of 10kV level epoxy resin pouring dry type transformer according to claim 7, it is characterized in that, also comprise some cold blast engines (4), described cold blast engine (4) is located at described coil winding (3) lower section, and described cold blast engine (4) is connected with described treater (501).
9. a kind of 10kV level epoxy resin pouring dry type transformer according to claim 7, it is characterised in that, also comprise an indicating system (6), described indicating system (6) is connected with described treater (501).
10. according to a kind of 10kV level epoxy resin pouring dry type transformer according to claim 1, it is characterised in that, described corrosion protection layer is acrylic polymers corrosion-mitigation scale-inhibition layer.
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CN201610169551.XA CN105655100A (en) | 2016-03-23 | 2016-03-23 | 10kV-level epoxy resin cast dry-transformer |
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CN201610169551.XA CN105655100A (en) | 2016-03-23 | 2016-03-23 | 10kV-level epoxy resin cast dry-transformer |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107863235A (en) * | 2017-12-04 | 2018-03-30 | 上海凯利电器厂有限公司 | Transformer |
CN111989755A (en) * | 2018-04-20 | 2020-11-24 | 西门子股份公司 | Digital transformer |
TWI721633B (en) * | 2019-11-06 | 2021-03-11 | 華城電機股份有限公司 | Current monitoring method and device of transformer |
WO2022100351A1 (en) * | 2020-11-11 | 2022-05-19 | 许继变压器有限公司 | Smart management system for dry-type transformer |
CN114684492A (en) * | 2022-03-25 | 2022-07-01 | 无锡星际智慧物流有限公司 | Transformer core supporting device based on wisdom logistics system |
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CN202796400U (en) * | 2012-08-31 | 2013-03-13 | 山东鼎鑫电气科技有限公司 | Intelligent dry-type transformer |
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JPH0311709A (en) * | 1989-06-09 | 1991-01-21 | Mitsubishi Electric Corp | Gas insulated machine protecting device |
CN202796400U (en) * | 2012-08-31 | 2013-03-13 | 山东鼎鑫电气科技有限公司 | Intelligent dry-type transformer |
CN202906454U (en) * | 2012-11-28 | 2013-04-24 | 国家电网公司 | Transformer iron core and clamp multi-point grounding automatic current limiting safety device |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107863235A (en) * | 2017-12-04 | 2018-03-30 | 上海凯利电器厂有限公司 | Transformer |
CN111989755A (en) * | 2018-04-20 | 2020-11-24 | 西门子股份公司 | Digital transformer |
TWI721633B (en) * | 2019-11-06 | 2021-03-11 | 華城電機股份有限公司 | Current monitoring method and device of transformer |
WO2022100351A1 (en) * | 2020-11-11 | 2022-05-19 | 许继变压器有限公司 | Smart management system for dry-type transformer |
CN114684492A (en) * | 2022-03-25 | 2022-07-01 | 无锡星际智慧物流有限公司 | Transformer core supporting device based on wisdom logistics system |
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