CN102360753A - Anti-theft noise-reduction transformer - Google Patents
Anti-theft noise-reduction transformer Download PDFInfo
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- CN102360753A CN102360753A CN2011102418511A CN201110241851A CN102360753A CN 102360753 A CN102360753 A CN 102360753A CN 2011102418511 A CN2011102418511 A CN 2011102418511A CN 201110241851 A CN201110241851 A CN 201110241851A CN 102360753 A CN102360753 A CN 102360753A
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Abstract
The invention provides an anti-theft noise-reduction transformer, which adopts two anti-theft schemes including a structure anti-theft scheme and an alarming anti-theft scheme, and two noise reduction designs simultaneously. The upper edge of a tank body of an oil tank is fixedly welded with a tank cover and a winding coil of the transformer is permanently sealed inside the tank body of the oil tank, so that the tank cover can not be opened for stealing winding copper wires under the condition of not damaging a sealed steel-made transformer oil tank structure; meanwhile, by adopting two initiative anti-theft alarming ways including vibration alarming and non-voltage alarming, an anti-theft performance of the transformer is further enhanced. In addition, the two vibration-attenuation and noise-reduction designs are adopted, so that the noise of the transformer is reduced to the greatest extent and the phenomenon of disturbing people by noises is avoided.
Description
Technical field
The present invention relates to a kind of transformer, especially relate to a kind of antitheft noise reduction transformer.
Background technology
Power transformer is the important component part of electrical network, guarantees safety, the reliability service of power transformer, concerns the various aspects of production, life, has great social significance.But along with constantly riseing of metal material, especially copper material price, the stolen problem of power transformer also becomes increasingly conspicuous.On the one hand; The casing and the case lid of existing transformer, all be adopt fastening bolt connect, fixing, as long as unclamp bolt, open case lid; Just can take out the winding coil of transformer easily, thereby exist the winding copper material to be easy to technological deficiency stolen, the theftproof performance difference; On the other hand, existing transformer self does not have anti-theft device, the anti-thefting facility that outside transformer, is provided with; Because work is insensitive, unreliable, anti-theft effect is undesirable, fails to reach the purpose of transformer anti-theft; Transformer noise of the prior art is big simultaneously, and the situation that disturbs residents is comparatively serious.
Summary of the invention
The objective of the invention is to overcome the technological deficiency that exists in the above prior art, a kind of antitheft noise reduction transformer is provided.
For realizing above-mentioned purpose, antitheft noise reduction transformer device structure of the present invention is following:
A kind of antitheft noise reduction transformer; It comprises with lower member: fuel tank casing, case lid, be placed on winding coil, iron core, iron core pad pin, radiator, iron core cushion blocking, heat radiation vibration-damping sheet, vibration alarm, dead electricity alarm in the fuel tank casing, it is characterized in that:
(1) fuel tank casing upper edge and case lid are fixed and welded together; Form hermetic structure, have no the slit between fuel tank casing and the case lid, winding coil is sealed in the inside of fuel tank casing; Thereby under the situation of not destroying the steel oil tank of transformer, can't open case lid.
(2) said vibration alarm and dead electricity alarm and transformer weld together, and welding manner is: vibration alarm and dead electricity alarm are welded on fuel tank casing or the case lid simultaneously; Perhaps separately welding of vibration alarm and dead electricity alarm; Be that above-mentioned two kinds of alarms are welded on fuel tank casing or the case lid separately; Above-mentioned two kinds of alarms are independently monitoring separately; Respectively or simultaneously vibration situation or the power failure state according to transformer sends alarm signal, and at damage of another one alarm or Normal Alarm when malfunctioning.
Said vibration alarm can detect the abnormal vibrations of transformer and send alarm signal, and its vibration alarm circuit is made up of the DC power supply and first buzzer of antitheft vibration detection circuit, controlled ultralow-frequency oscillator circuit, self-excited oscillator circuit and 12 volts.Piezoelectric ceramic piece and first resistor, second resistor, the 3rd resistor as vibrating sensor are formed the antitheft vibration detection circuit; First time-base integrated circuit and the 4th resistor, first capacitor, second capacitor are formed controlled ultralow-frequency oscillator circuit; Second time-base integrated circuit and the 5th resistor, the 6th resistor, the 3rd capacitor are formed the self-excited oscillator circuit.
The operating circuit that said dead electricity alarm can detect transformer loses the state of voltage; And send alarm signal immediately; Its dead electricity warning circuit comprises dead electricity signal sampling circuit and dead electricity warning circuit; Wherein, the dead electricity signal sampling circuit is connected by the coil of auxiliary relay between two phase lines or a phase line and a neutral line of step down side and constitutes; Constitute between positive pole that the dead electricity warning circuit is connected on DC power supply by the normally closed contact and second buzzer of auxiliary relay and the negative pole; In the described dead electricity warning circuit inspection switch can also be set; The a pair of normally closed contact of inspection switch and the normally closed contact of auxiliary relay and second buzzer are connected mutually; When transformer normally has a power failure, open the door lock of alarm, can operate inspection switch its normally closed contact is broken off; And then break off the dead electricity warning circuit, make second buzzer stop to report to the police.
(3) said iron core cushion blocking is the cushion blocking that rubber is processed, and it is arranged at the bottom of the inner fuel tank case of transformer and between the iron core pad pin, and damping action is played in the mechanical oscillation of iron core and winding coil, reduces to be delivered to the mechanical oscillation of tank envelope.
(4) said radiator vibration-damping sheet is arranged on the vibration-damping sheet of the outside steel of transformer, and it is perpendicular with each fin, and be fixedly connected with each fin through welding, and alleviates the vibration of monolithic fin, the work noise of reduction transformer.
(5) said iron core is the iron core of the long round section processed of high magnetic conduction silicon steel sheet; Adopt the complete tiltedly stepping seam of 45 degree to reach not punching structure, can reduce no-load current and loss effectively, the iron core folder adopts prestressing force, ventilative folder structure; Stem stem adopts the insulating tape colligation; Pulling plate structure in folder from top to bottom adopts, folder all passes through the zinc-plated processing of surface electrical simultaneously, and the iron core surface adopts lacquer to apply.
(6) said winding coil is a paper tinsel formula winding, adopts Copper Foil to form together with turn-to-turn insulation coiling on the low pressure foil winding equipment of F level, and the winding leads copper bar is drawn after the welding through argon arc welding automatically during coiling, and stay is put into as the cooling duct in the centre.
The present invention has at first adopted structure antitheft scheme; Fuel tank casing and case lid are fixed and welded together; Thereby for good and all be sealed in the fuel tank box house to winding coil, guarantee under the situation of not destroying the steel oil tank of transformer, can't open case lid, steal the winding copper material; Give up offender's theft attempt, realize the purpose of transformer anti-theft.Simultaneously, adopted the alarming anti-theft scheme again, on the transformer body body, burglar alarm has been set, made alarm can realize transformer vibration alarming and power alarm reliably.In addition, the iron core cushion blocking and the radiator vibration-damping sheet of the present invention's design, vibration and noise in the time of can reducing transformer work.
Description of drawings
Fig. 1 is the structural map of transformer of the present invention.
Fig. 2 is transformer body lifting figure of the present invention.
Fig. 3 is the vertical view of transformer core of the present invention.
Fig. 4 is a vibration alarming circuit diagram of the present invention.
Fig. 5 is dead electricity signal sampling circuit figure of the present invention.
Fig. 6 is dead electricity warning circuit figure of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further.
Referring to Fig. 1, Fig. 2, Fig. 1 is the structural map of transformer of the present invention, and Fig. 2 is transformer body lifting figure.The present invention's noise reduction transformer of guarding against theft comprises fuel tank casing 1, case lid 2; Be placed on the winding coil 6 in the fuel tank casing, iron core 7, iron core pad pin 8; Radiator 31,32,33, iron core cushion blocking 9, radiator vibration- damping sheet 41,42,43,44,45; Alarm 5, fuel tank casing upper edge 11 is fixed and welded together with case lid 2, has no the slit between fuel tank casing upper edge 11 and the case lid 2; Thereby winding coil 6 for good and all is sealed in the inside of fuel tank casing 1, guarantees under the situation of not destroying the steel oil tank of transformer, can't open case lid, steal the winding copper material.In addition and since this transformer adopting hermetic structure, can avoid simultaneously water clock, the phenomenon of osmosis of the existing existing transformer oil of transformer again.
In order to reduce transformer loss, strengthen the anti-short circuit capability of winding, realize non-maintaining, the reliability service of transformer; This Transformer Winding coil 6 adopts paper tinsel formula winding; Iron core adopts the iron core of long round section, and referring to Fig. 3, Fig. 3 is the vertical view of transformer core of the present invention.This winding coil adopts Copper Foil to form together with turn-to-turn insulation coiling on the low pressure foil winding equipment of F level.The winding leads copper bar is drawn after the welding through argon arc welding automatically during coiling, and stay is put into as the cooling duct in the centre, and the winding after the moulding has the following advantages: (1) ampere-turn distribution equilibrium, and the axial short circuit mechanical force of generation is minimum; (2) adopt the round edge copper strips coiling of the German KME company of import, not having short circuit extremely maybe.The Copper Foil area of dissipation is big, the existence in good heat-transfer and inner ventilation road, and the heat that winding is produced is easy to diffusion, and its axial temperature is evenly distributed, and temperature rise is low, increases the insulating barrier life-span, and short circuit overload capacity is strong; (3) compact conformation, coiling is accurate, and welding quality is high, good mechanical property, overload capacity is strong, and humidity resistance is good; (4) paper tinsel formula ratio of winding traditional wire formula winding reduces a lot of insulation electrical passages, and voltage between layers is low; (5) the low pressure winding leads is to draw with copper bar, has avoided traditional wire formula winding several paralleled conductor, occurs hidden danger such as loss increase that dry joint causes, local overheating cracking during wire bonds; (6) the low pressure winding after the moulding makes conductor and insulation be bonded as one, can be moistureproof.
The iron core of this transformer also has following characteristics: (1) adopts the high magnetic conduction silicon steel sheet of the 27ZH100 of Nippon Steel to process, and this kind high-quality grain orientation cold-reduced silicon sheet can effectively reduce no-load loss; (2) adopt the complete tiltedly stepping seam of 45 degree to reach not punching structure, can reduce no-load current and loss effectively; (3) the iron core folder adopts prestressing force, ventilative folder structure, and stem stem adopts the insulating tape colligation, pulling plate structure in folder from top to bottom adopts, good mechanical stability; Folder all passes through the zinc-plated processing of surface electrical simultaneously, and stronger corrosion resistance is arranged; (4) the iron core surface adopts special varnish to apply, and has strengthened its mechanical strength and chucking power.
For realizing the anti-theft alarm function of transformer; This transformer also is provided with the burglar alarm that welds together with transformer, and referring to Fig. 1, Fig. 1 is a present embodiment transformer device structure sketch map; Comprise fuel tank casing 1, case lid 2 and winding coil 6, and burglar alarm 5.Described burglar alarm can constitute vibration alarm and dead electricity alarm respectively according to the vibration situation or the power failure state of transformer.Above-mentioned two kinds of alarms are independently monitoring separately, and respectively or simultaneously vibration situation or the power failure state according to transformer sends alarm signal, and at damage of another one alarm or Normal Alarm when malfunctioning; Burglar alarm adopts high-intensity steel shell, reinforced door lock, independently DC power supply, buzzer independently; The steel shell of alarm and fuel tank case lid are fixed and welded together; The welding manner of present embodiment is: vibration alarm and dead electricity alarm are installed in the steel shell simultaneously, and this steel shell is welded on the fuel tank case lid.Two kinds of alarms are independently monitoring separately, and respectively or simultaneously vibration situation or the power failure state according to transformer sends alarm signal, and at damage of another one alarm or Normal Alarm when malfunctioning.
Described vibration alarm can detect the vibration of sending when the offender steals transformer, and sends alarm signal immediately.Referring to Fig. 4, Fig. 4 is the vibration alarming circuit diagram of present embodiment: this circuit is made up of the DC power supply and the first buzzer HA1 of antitheft vibration detection circuit, controlled ultralow-frequency oscillator circuit, self-excited oscillator circuit and 12 volts.Form the antitheft vibration detection circuits as the piezoelectric ceramic piece BC of vibrating sensor and first resistor R 1, second resistor R 2, the 3rd resistor R 3; The first time-base integrated circuit ICa and the 4th resistor R 4, the first capacitor C1, the second capacitor C2 form controlled ultralow-frequency oscillator circuit; The second time-base integrated circuit ICb and the 5th resistor R 5, the 6th resistor R 6, the 3rd capacitor C3 form the self-excited oscillator circuit.Wherein, resistance R 1=1M Ω,, R2=1M Ω, R3=10M Ω, R4=1M Ω, R5=1M Ω, R6=1M Ω; Capacitor C1=50 μ F, C2=1 μ F, C3=1 μ F; The model of IC a and ICb is IcM7556, and what ICa used is that numbering is respectively six pins of 1,2,5,6,7,14, and what ICb used is that numbering is respectively five pins of 8,9,10,12,13; The model of vibrating sensor BC is that the model of YT-JB3, the first buzzer HA1 is TWH-11.The operation principle of this circuit is following: when vibrating sensor BC does not detect vibration, and controlled ultralow-frequency oscillator circuit and the equal nonoscillatory of self-excited oscillator circuit, the first buzzer HA1 is sounding not, and alarm is in the not state of alert of sounding; Take place as stealing feelings; When vibrating sensor BC detects abnormal vibrations; To produce a trigger voltage at the two ends of the 3rd resistor R 3, make controlled ultralow-frequency oscillator circuit and the work of self-excited oscillator circuit oscillation, the 5Hz ultra-low frequency oscillation signal that controlled ultralow-frequency oscillator circuit produces; Self-oscillation signal to the self-excited oscillator circuit produces is modulated, and drives the first buzzer HA1 and sends the audio alarming signal up to 120dB; After abnormal vibrations disappears, the failure of oscillations after the time that delay working is set of controlled ultralow-frequency oscillator and self-excited oscillator, the first buzzer HA1 stops sounding, and vibration alarm gets into the state of alert again.
Described dead electricity alarm can detect the transformer operating circuit and lose voltage and send alarm signal immediately.The dead electricity alarm comprises dead electricity signal sampling circuit and dead electricity warning circuit, referring to Fig. 5 and Fig. 6.Fig. 5 is the dead electricity signal sampling circuit figure of present embodiment, and this dead electricity signal sampling circuit is connected between the phase line of step down side and the neutral line by the coil of auxiliary relay and constitutes.Fig. 6 is the dead electricity warning circuit figure of present embodiment; Constitute between the positive pole of the DC power supply that the dead electricity warning circuit is connected on 12V by the normally closed contact and the second buzzer HA2 of auxiliary relay KA and the negative pole; Wherein, The model of auxiliary relay KA is HH54P/AC220V, and the model of the second buzzer HA2 is TWH-11.The operation principle of this circuit is following: when the transformer operate as normal; The dead electricity signal sampling circuit connects the phase voltage of the low-pressure side of transformer, through electric current, makes electromagnetic actuation wherein in the coil of the KA of auxiliary relay; The normally closed contact that drives the auxiliary relay device breaks off; Thereby the dead electricity warning circuit also is in off-state, do not have electric current in the coil of the second buzzer HA2, can not give the alarm; When the burglar broke off the operating circuit enforcement theft of transformer, the dead electricity signal sampling circuit lost voltage, the coil blackout of auxiliary relay KA; Its normally closed contact is closed; Thereby the connection of dead electricity warning circuit, through electric current, give the alarm in the coil of the second buzzer HA2.In the described dead electricity warning circuit inspection switch S can also be set; The coil of a pair of normally closed contact of inspection switch S and the normally closed contact of auxiliary relay KA and the second buzzer HA2 is connected mutually; When transformer normally has a power failure, open the door lock of alarm, can operate inspection switch S its normally closed contact is broken off; And then break off the dead electricity warning circuit, make the second buzzer HA2 stop to report to the police.
Simultaneously; Be vibration and the noise that reduces transformer, improve the vibration alarming reliability of alarm, present embodiment has carried out Vibration Absorption Designing from two aspects respectively: first aspect; Transformer is inner; Setting up iron core cushion blocking 9 at the bottom of the fuel tank case and between the iron core pad pin, referring to Fig. 2, the material preferred acrylate rubber of iron core cushion blocking 9.Rubber blanket can play damping action to the mechanical oscillation of iron core and winding coil, reduces to be delivered to the mechanical oscillation of tank envelope.The iron core of existing transformer and winding coil; Be on iron core pad pin through steel directly is placed at the bottom of the case of oil tank of transformer; The iron core pad pin of steel has no damping effect; Just directly with the vibration transfer of winding coil and iron core to the oil tank of transformer shell, through tank envelope vibration is become noise transmission in surrounding environment at last.Second aspect, outside at transformer, also designed the radiator vibration-damping sheet, preferably on the radiator of each side of transformer, the vibration-damping sheet that two horizontal steel plates vertical with fin are processed is set, these two vibration-damping sheets weld with fin and fix.Referring to Fig. 1, among the figure, radiator vibration- damping sheet 41,42,43,44,45 is fixedly connected with fin, reduces the vibration of monolithic fin, thereby reduces the work noise of transformer.
Claims (1)
1. antitheft noise reduction transformer; It comprises with lower member: fuel tank casing, case lid, be placed on winding coil, iron core, iron core pad pin, radiator, iron core cushion blocking, radiator vibration-damping sheet, vibration alarm, dead electricity alarm in the fuel tank casing, it is characterized in that:
(1) fuel tank casing upper edge and case lid are fixed and welded together; Form hermetic structure, have no the slit between fuel tank casing and the case lid, winding coil is sealed in the inside of fuel tank casing; Thereby under the situation of not destroying the steel oil tank of transformer, can't open case lid;
(2) said vibration alarm and dead electricity alarm and transformer weld together, and welding manner is: vibration alarm and dead electricity alarm are welded on fuel tank casing or the case lid simultaneously; Perhaps separately welding of vibration alarm and dead electricity alarm; Be that above-mentioned two kinds of alarms are welded on fuel tank casing or the case lid separately; Above-mentioned two kinds of alarms are independently monitoring separately; Respectively or simultaneously vibration situation or the power failure state according to transformer sends alarm signal, and at damage of another one alarm or Normal Alarm when malfunctioning;
Said vibration alarm can detect the abnormal vibrations of transformer and send alarm signal, and the vibration alarm circuit is made up of the DC power supply and first buzzer of antitheft vibration detection circuit, controlled ultralow-frequency oscillator circuit, self-excited oscillator circuit and 12 volts; Piezoelectric ceramic piece and first resistor, second resistor, the 3rd resistor as vibrating sensor are formed the antitheft vibration detection circuit; First time-base integrated circuit and the 4th resistor, first capacitor, second capacitor are formed controlled ultralow-frequency oscillator circuit; Second time-base integrated circuit and the 5th resistor, the 6th resistor, the 3rd capacitor are formed the self-excited oscillator circuit;
Said dead electricity alarm can detect the transformer operating circuit and lose voltage and send alarm signal immediately; The dead electricity alarm comprises dead electricity signal sampling circuit and dead electricity warning circuit; Wherein, the dead electricity signal sampling circuit is connected between two phase lines of step down side or a phase line and a neutral line by the coil of auxiliary relay and constitutes; Constitute between positive pole that the dead electricity warning circuit is connected on DC power supply by the normally closed contact and second buzzer of auxiliary relay and the negative pole; In the described dead electricity warning circuit inspection switch can also be set; The a pair of normally closed contact of inspection switch and the normally closed contact of auxiliary relay and second buzzer are connected mutually; When transformer normally has a power failure, open the door lock of alarm, can operate inspection switch its normally closed contact is broken off; And then break off the dead electricity warning circuit, make second buzzer stop to report to the police;
(3) said iron core cushion blocking is the cushion blocking that rubber is processed, and it is arranged at the bottom of the inner fuel tank case of transformer and between the iron core pad pin, and damping action is played in the mechanical oscillation of iron core and winding coil, reduces to be delivered to the mechanical oscillation of tank envelope;
(4) said radiator vibration-damping sheet is arranged on the vibration-damping sheet of the outside steel of transformer, and it is perpendicular with each fin, and be fixedly connected with each fin through welding, and alleviates the vibration of monolithic fin, the work noise of reduction transformer;
(5) said iron core is the iron core of the long round section processed of high magnetic conduction silicon steel sheet; Adopt the complete tiltedly stepping seam of 45 degree to reach not punching structure, can reduce no-load current and loss effectively, the iron core folder adopts prestressing force, ventilative folder structure; Stem stem adopts the insulating tape colligation; Pulling plate structure in folder from top to bottom adopts, folder all passes through the zinc-plated processing of surface electrical simultaneously, and the iron core surface adopts lacquer to apply;
(6) said winding coil is a paper tinsel formula winding, adopts Copper Foil to form together with turn-to-turn insulation coiling on the low pressure foil winding equipment of F level, and the winding leads copper bar is drawn after the welding through argon arc welding automatically during coiling, and stay is put into as the cooling duct in the centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110241851.1A CN102360753B (en) | 2011-08-23 | 2011-08-23 | Anti-theft noise-reduction transformer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110241851.1A CN102360753B (en) | 2011-08-23 | 2011-08-23 | Anti-theft noise-reduction transformer |
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| CN102360753A true CN102360753A (en) | 2012-02-22 |
| CN102360753B CN102360753B (en) | 2014-04-23 |
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| CN201110241851.1A Expired - Fee Related CN102360753B (en) | 2011-08-23 | 2011-08-23 | Anti-theft noise-reduction transformer |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709037A (en) * | 2012-06-20 | 2012-10-03 | 湖北省电力公司电力试验研究院 | Transformer with built-in transducer |
| CN105185512A (en) * | 2015-09-28 | 2015-12-23 | 四川森变电力设备有限公司 | Dual anti-theft environment-friendly and energy-saving transformer |
| CN105225379A (en) * | 2015-11-05 | 2016-01-06 | 山东华驰变压器股份有限公司 | A kind of antitheft transformer |
| CN107818863A (en) * | 2017-12-11 | 2018-03-20 | 海宁天悦电子有限公司 | A kind of antitheft damping transformer |
| CN113299470A (en) * | 2021-04-23 | 2021-08-24 | 江苏中容科技有限公司 | Inductance low-leakage-noise transformer and preparation method thereof |
| CN114550316A (en) * | 2022-04-27 | 2022-05-27 | 广州商景网络科技有限公司 | One-stop credible biological characteristic data acquisition terminal equipment and acquisition and sharing method |
| CN116666039A (en) * | 2023-06-18 | 2023-08-29 | 江苏北辰互邦电力股份有限公司 | Offshore wind power transformer with good corrosion resistance effect and application method thereof |
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| CN105553022B (en) * | 2016-01-13 | 2019-05-24 | 深圳市龙威盛电子科技有限公司 | Charging terminal |
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| CN202196644U (en) * | 2011-08-23 | 2012-04-18 | 徐州巨腾变压器有限公司 | Theft-prevention noise reduction transformer |
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| CN201134341Y (en) * | 2007-11-28 | 2008-10-15 | 曹麾 | Intelligent type distributing transformer |
| CN201388005Y (en) * | 2009-03-18 | 2010-01-20 | 广州绿能电气有限公司 | Multi-machine transformer for remote control of oilfield pumping unit |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102709037A (en) * | 2012-06-20 | 2012-10-03 | 湖北省电力公司电力试验研究院 | Transformer with built-in transducer |
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| CN105185512A (en) * | 2015-09-28 | 2015-12-23 | 四川森变电力设备有限公司 | Dual anti-theft environment-friendly and energy-saving transformer |
| CN105225379A (en) * | 2015-11-05 | 2016-01-06 | 山东华驰变压器股份有限公司 | A kind of antitheft transformer |
| CN107818863A (en) * | 2017-12-11 | 2018-03-20 | 海宁天悦电子有限公司 | A kind of antitheft damping transformer |
| CN113299470A (en) * | 2021-04-23 | 2021-08-24 | 江苏中容科技有限公司 | Inductance low-leakage-noise transformer and preparation method thereof |
| CN113299470B (en) * | 2021-04-23 | 2022-05-03 | 江苏中容科技有限公司 | Inductance low-leakage-noise transformer and preparation method thereof |
| CN114550316A (en) * | 2022-04-27 | 2022-05-27 | 广州商景网络科技有限公司 | One-stop credible biological characteristic data acquisition terminal equipment and acquisition and sharing method |
| CN116666039A (en) * | 2023-06-18 | 2023-08-29 | 江苏北辰互邦电力股份有限公司 | Offshore wind power transformer with good corrosion resistance effect and application method thereof |
| CN116666039B (en) * | 2023-06-18 | 2023-11-03 | 江苏北辰互邦电力股份有限公司 | Offshore wind power transformer with good corrosion resistance effect and application method thereof |
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| CN102360753B (en) | 2014-04-23 |
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