CN202929471U - Intelligent wind power box transformer protection, measurement and control device - Google Patents
Intelligent wind power box transformer protection, measurement and control device Download PDFInfo
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- CN202929471U CN202929471U CN 201220693751 CN201220693751U CN202929471U CN 202929471 U CN202929471 U CN 202929471U CN 201220693751 CN201220693751 CN 201220693751 CN 201220693751 U CN201220693751 U CN 201220693751U CN 202929471 U CN202929471 U CN 202929471U
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Abstract
The utility model discloses an intelligent wind power box transformer protection, measurement and control device which is formed by a central processing module (1), an electrical quantity signal collection module (2), a non electrical quantity collection module (3), an outlet execution module (4), a storage module (5), a communication module (6), a human-computer interaction module (7) and a power supply (8). The electrical quantity signal collection module, the human-computer interaction module and the communication module are respectively connected with the central processing module to realize two-way communication. A signal of the non electrical quantity collection module is inputted to the central processing module, and a signal of the central processing module is outputted to the outlet execution module. According to the intelligent wind power box transformer protection, measurement and control device, through collecting voltage current and non electrical quantity signals of a wind power plant box transformer, corresponding actions are executed according to the signals, and various kinds of protection, measurement and control functions of the wind power plant box transformer are realized.
Description
Technical field
The utility model relates to the wind power technology field, particularly a kind of wind power plant box type transformer Intelligent protection measuring controller.
Background technology
China's Wind Power Generation Industry fast development, to increasing China's energy supply, readjust the energy structure and preserve the ecological environment and played positive role.According in " wind power generating set asynchronous generator " (GB/T 19071.1-2003) the 3.6th about stipulating in generator pattern, basic parameter and size: the rated frequency of single speed generator is 50Hz, synchronous rotational speed is 1500r/min, rated voltage (v) is 400,690,1000,1500.Wind power generating set outlet voltage major part is 400V or 690V in the world at present.Traditional transformer measure and control device AC voltage sampling system rated voltage is generally 100V.Can not meet the requirement of wind power generating set outlet voltage acquisition.
Due to wind resource distribution cause specific, Wind Power Project is many in northwest and the relatively severe place of natural conditions such as coastal, and winter temperature is minimum will arrive-40 ℃ of left and right, and traditional measuring and controlling equipment General Requirements meets at-5 ℃ of low temperature and normally moves.Rugged environment makes conventional transformer measuring and controlling equipment the situation of fluctuation of service occur in wind energy turbine set.The observing and controlling of wind power plant box type transformer, except detecting two ac electrics of high and low pressure, also needs to increase by 2～4 tunnel temperature surveys.The non electrical quantity detection is also many in addition, as Transformer Heavy Gas, light transformer gas, superpotential, the abnormal Deng Jin 20 road non electrical quantities of oil level.And the analog quantity sampling channel of conventional transformer measuring and controlling equipment, the non electrical quantity sense channel is all relatively limited, if for the observing and controlling of wind power plant box type transformer, needs to increase in addition sampling channel, increases hardware cost, even increases the measuring and controlling equipment volume.
In addition; the distribution of wind energy turbine set wind power generating set relatively disperses; the signal long-distance transmissions is more difficult; the tradition communication modes realizes that cost is very high; therefore, design a kind of novel intelligent wind-power box and become the protection measure and control device, meet wind energy turbine set rugged surroundings service requirement and box type transformer and protect observing and controlling to annotate; and there is the reliable communicating function, there is positive effect.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of Intelligent wind power case and becomes the protection measure and control device, can directly gather fan outlet 690V voltage, and stable operation is in the particular surroundings of-40 ℃～45 ℃.
The utility model Intelligent wind power case becomes the protection measure and control device; it is by central processing module 1; electric quantity signal collecting module 2, non electrical quantity acquisition module 3, outlet execution module 4, memory module 5, communication module 6, human-computer interaction module 7 and power supply 8 form; electric quantity signal collecting module 2, human-computer interaction module 7, communication module 6 are connected with central processing module 1 respectively and realize both-way communication; the signal of non electrical quantity acquisition module 3 is input to central processing module 1, and the signal of central processing module 1 outputs to outlet execution module 4.
The utility model Intelligent wind power case becomes the protection measure and control device; described central processing module 1 consists of 32 embedded microcontroller MCU; it also is connected with large capacity SRAM, FLASH memory module 5, and large capacity SRAM, FLASH memory module 5 is connected with 32 embedded microcontroller MCU and realize both-way communication.
The utility model Intelligent wind power case becomes the protection measure and control device, and described ac electric signal acquisition module 2 comprises 12 road alternating current quantity sampling passages, two-way temperature acquisition passage and two-way direct current signal acquisition channel; Described 12 road alternating current quantity sampling passages are the passages that gather box type transformer high-voltage side three-phase voltage, three-phase current and low-pressure side three-phase voltage, three-phase current, the electric quantity signal collected is inputted respectively the electrical isolation circuit, the electrical isolation circuit outputs to filtering circuit, filtering circuit outputs to discharge circuit, and discharge circuit outputs to the passage expanded circuit; Two-way temperature acquisition passage gathers the signal of thermal resistance PT100 and inputs respectively electrical isolation circuit one 2-3, electrical isolation circuit one 2-3 outputs to filtering circuit 2-4, filtering circuit 2-4 outputs to discharge circuit 2-5, discharge circuit 2-5 outputs to three-wire system bridge-type metering circuit 2-6, three-wire system bridge-type metering circuit outputs to channel multiplexing controller 2-7, and channel multiplexing controller 2-7 outputs to passage expanded circuit 2-8; The electric quantity signal of two-way direct current signal acquisition channel collecting temperature transmitter 2-1 output, if temperature transmitter 2-1 output is DC current signal, DC current signal is input to current/voltage (I/U) change-over circuit 2-2, current/voltage (I/U) change-over circuit 2-2 outputs to electrical isolation circuit one 2-3, electrical isolation circuit one 2-3 outputs to filtering circuit 2-4, filtering circuit 2-4 outputs to discharge circuit 2-5, discharge circuit 2-5 outputs to channel multiplexing controller 2-7, and channel multiplexing controller 2-7 outputs to passage expanded circuit 2-8; If temperature transmitter output is d. c. voltage signal, need not pass through current/voltage (I/U) change-over circuit 2-2, electrical isolation circuit one 2-3 is received in temperature transmitter 2-1 output directly input; Passage expanded circuit 2-8 is connected with mould/number (A/D) change-over circuit 2-9 and realizes both-way communication, mould/number (A/D) change-over circuit 2-9 is connected with central processing module 1 and realizes that both-way communication, the signal of central processing module 1 are input to channel multiplexing controller 2-7.
The utility model Intelligent wind power case becomes the protection measure and control device, and described two-way temperature acquisition passage and two-way direct current signal acquisition channel share the AD sampling channel, with the mode time sharing sampling of ping-pong type switching.
The utility model Intelligent wind power case becomes the protection measure and control device; described non electrical quantity acquisition module 3 comprises 20 road non electrical quantity sense channels; the signal collected is input to photoelectric isolating circuit, and photoelectric isolating circuit outputs to level shifting circuit, and level shifting circuit outputs to central processing module.
The utility model Intelligent wind power case becomes the protection measure and control device; described outlet execution module 4 comprises 8 exit passageways; the signal of central processing module 1 is input to photoelectric isolating circuit; photoelectric isolating circuit outputs to driving circuit; driving circuit outputs to relay and carries out exit circuit, and relay is carried out exit circuit and outputed to 8 exit passageways.
The utility model Intelligent wind power case becomes the protection measure and control device, and described power module 8 provides 5V power supply, positive and negative 12V power supply and 24V power supply, and positive and negative 12V power supply is to operational amplifier and the power supply of passage extender, and the 24V power supply is to relay and drive circuitry thereof.
The utility model Intelligent wind power case becomes the protection measure and control device, described communication module 6 is provided with optical fiber interface 6-2, Ethernet interface 6-1, serial ports 6-3 and GPS interface 6-4, optical fiber interface 6-2, Ethernet interface 6-1 is connected to electrical isolation circuit two 6-5, electrical isolation circuit two 6-5 connect respectively ethernet controller 6-7 and optical fiber turns ethernet controller 6-6, optical fiber turns ethernet controller 6-6 and is connected with ethernet controller 6-7, ethernet controller 6-7 is connected with central processing module 1 and realizes both-way communication, central processing module 1 turns ethernet controller 6-6 with optical fiber and realizes both-way communication, the signal of serial ports and GPS interface is input to photoelectric isolating circuit three 6-8, photoelectric isolating circuit three 6-8 output minute two-way, and a road outputs to central processing module, and another road outputs to GPS demoder 6-9, and GPS demoder 6-9 outputs to central processing module.
The utility model is expanded sampling channel by the mode of ping-pong type switching channel, meets the TT&C requirement detected than analog quantity in wind energy turbine set.Turn two optical fiber interfaces of optic module expansion by Ethernet, optical fiber interface is connected with backbone network, can form the ring-like Ethernet of self-healing optical fiber.In real time the information of each distributing wind energy turbine set box type transformer is sent to central station of floating dock; the indoor control command of sending of union control sends to box type transformer; to complete protection and the observing and controlling to whole box type transformer, have that measuring accuracy is high, circuit is simple, the characteristics of stable performance.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model Intelligent wind power field box type transformer protection measure and control device.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described further.
As shown in Figure 1, the utility model Intelligent wind power field box type transformer protection measure and control device comprises central processing module 1(MCU), electric quantity signal collecting module 2, non-electric charge quantity signalling acquisition module 3, outlet execution module 4, data memory module 5, communication module 6, human-computer interaction module 7 and power supply 8.Electric quantity signal collecting module 2, human-computer interaction module 7, communication module 6 are connected with central processing module 1 respectively and realize both-way communication, the signal of non electrical quantity acquisition module 3 is input to central processing module 1, and the signal of central processing module 1 outputs to outlet execution module 4.
Described central processing module 1 consists of 32 powerful embedded microcontroller MCU of hardware capability, it also is connected with large capacity SRAM, FLASH memory module 5, and large capacity SRAM, FLASH memory module 5 is connected with 32 embedded microcontroller MCU and realize both-way communication.32 embedded microcontroller MCU and large capacity RAM, the powerful central processing module hardware platform of the common composition function of FLASH storage chip 5, transplant embedded real-time operating system on this hardware platform, there is real-time high, data processing, logical operation and information storage capability are strong, the characteristics that travelling speed is fast.Meet the functional requirement of wind power plant box type transformer work in every protection and measurement and control.
Described ac electric signal acquisition module 2 receives primary current mutual inductor CT current signal, primary voltage mutual inductor PT or wind power generating set outlet voltage signal.It comprises 12 road alternating current quantity sampling passages, two-way temperature acquisition passage and two-way direct current signal acquisition channel; Described 12 road alternating current quantity sampling passages are the passages that gather box type transformer high-voltage side three-phase voltage, three-phase current and low-pressure side three-phase voltage, three-phase current, the electric quantity signal collected is inputted respectively electrical isolation circuit one 2-3, electrical isolation circuit one 2-3 outputs to filtering circuit one 2-4, filtering circuit one 2-4 outputs to discharge circuit one 2-5, discharge circuit one 2-5 outputs to passage expanded circuit 2-8, wherein, the alternating voltage sampling channel can, according to the build-out resistor difference of installing, can directly gather the highest 690V alternating voltage.Two-way temperature acquisition passage gathers the signal of thermistor PT100 and inputs respectively electrical isolation circuit one 2-3, electrical isolation circuit one 2-3 outputs to filtering circuit 2-4, filtering circuit 2-4 outputs to discharge circuit 2-5, discharge circuit 2-5 outputs to three-wire system bridge-type metering circuit 2-6, three-wire system bridge-type metering circuit outputs to channel multiplexing controller 2-7, channel multiplexing controller 2-7 outputs to passage expanded circuit 2-8, two-way temperature acquisition passage adopts three-wire system bridge-type metering circuit 2-6, there is circuit simple, can eliminate the error of circuit equivalent resistance, the precision high.The electric quantity signal of two-way direct current signal acquisition channel collecting temperature transmitter 2-1 output, if temperature transmitter 2-1 output is DC current signal, DC current signal is input to current/voltage (I/U) change-over circuit 2-2, current/voltage (I/U) change-over circuit 2-2 outputs to electrical isolation circuit one 2-3, electrical isolation circuit one 2-3 outputs to filtering circuit 2-4, filtering circuit 2-4 outputs to discharge circuit 2-5, discharge circuit 2-5 outputs to channel multiplexing controller 2-7, channel multiplexing controller 2-7, output to passage expanded circuit 2-8.If temperature transmitter output is d. c. voltage signal, need not pass through current/voltage (I/U) change-over circuit 2-2, electrical isolation circuit one 2-3 is received in temperature transmitter 2-1 output directly input.Passage expanded circuit 2-8 is connected with mould/number (A/D) change-over circuit 2-9 and realizes both-way communication, mould/number (A/D) change-over circuit 2-9 is connected with central processing module 1 and realizes that both-way communication, the signal of central processing module 1 are input to channel multiplexing controller 2-7.Two-way direct current sampling channel can be measured standard 0-5V DC voltage or the 4-20mA DC current of temperature transmitter output according to the components and parts difference of welding.Not only save passage and meet on-the-spot different measurement demand.If input signal is 4-20mA, at first pass through current/voltage (I/U) change-over circuit 2-2 current conversion is become to voltage signal, be convenient to measure.
Because temperature survey and direct current sampling requirement of real-time are not high, for saving hardware resource, two-way temperature survey and the sampling of two-way direct current share two passages.By the channel multiplexing controller, controlled, adopt the time-sharing multiplex principle, transmit temperature measurement information at two passages of first sampling instant, two passages of next sampling instant transmit the direct current sample information, reciprocally carry out the ping-pong type switching and complete the function of four groups of signal samplings to reach two passages.
The electric quantity signal of all sampling channel collections all passes through electrical isolation, and filtering is processed, and after operation amplifier, by a 14 (A/D) mould/number conversion chips that only have 4 passages of passage extender access, the sampled data after conversion is imported MCU into and processed.The passage extender is for being extended to 16 passages by 4 passages of A/D chip.Reduced hardware cost, design cost.
Described non electrical quantity acquisition module 3 comprises 20 road non electrical quantity sense channel 3-1, and the signal collected is input to photoelectric isolating circuit one 3-2, and photoelectric isolating circuit one 3-2 outputs to level shifting circuit 3-3, and level shifting circuit 3-3 outputs to central processing module 1.Non electrical quantity acquisition module 3 is according to the build-out resistor difference of welding, can compatible 24V, 110V or the input signal of 220V.When non-electric charge quantity signalling is arranged, when the signal such as abnormal as Transformer Heavy Gas, light transformer gas, oil level occurs, input signal is delivered to level shifting circuit after photoelectricity isolation, by level conversion, is that level that central processing module 1 can directly be processed is sent into central processing module 1 and processed.
Described outlet execution module 4 comprises 8 exit passageway 4-1, the signal of central processing module 1 is input to photoelectric isolating circuit two 4-4, photoelectric isolating circuit two 4-4 output to driving circuit 4-3, driving circuit 4-3 outputs to relay and carries out exit circuit 4-2, and relay is carried out exit circuit 4-2 and outputed to 8 exit passageway 4-1.Outlet execution module 4 is selected dependable performance, the relay element that load capacity is large.When the order that MCU sends according to the external information gathered or master control room, in the time of need carrying out the action such as alarm, tripping operation, MCU sends actuating signal, sends into driving circuit 4-3 to drive relay to carry out corresponding action after photoelectric isolating circuit two 4-4.Non electrical quantity acquisition module 3 all is connected with central processing module with outlet execution module 4 after the photoelectricity isolation again, has improved the electrical isolation performance of device, makes the device reliability service.
The utility model Intelligent wind power field box type transformer protection measure and control device is designed with the communication interface module 6 of perfect in shape and function, according to the user demand flexible configuration, optical fiber interface 6-2 is arranged, Ethernet interface 6-1, serial ports 6-3 and GPS interface 6-4, optical fiber interface 6-2, Ethernet interface 6-1 is connected to electrical isolation circuit two 6-5, electrical isolation circuit two 6-5 connect respectively ethernet controller 6-7 and optical fiber turns ethernet controller 6-6, optical fiber turns ethernet controller 6-6 and is connected with ethernet controller 6-7, ethernet controller is connected with central processing module 1 and realizes both-way communication, central processing module 1 turns ethernet controller 6-6 with optical fiber and realizes both-way communication, the signal of serial ports and GPS interface is input to photoelectric isolating circuit three 6-8, photoelectric isolating circuit three 6-8 output minute two-way, and a road outputs to central processing module 1, and another road outputs to GPS demoder 6-9, and GPS demoder 6-9 outputs to central processing module 1.Optical fiber interface 6-2 can form the self-healing optical fiber ring network with system backbone, has simplified box type transformer supervisory system line, meets the management mode of wind power plant " few man on duty " or " unmanned ".The device communication protocol adopts the IEC103/104 stipulations of standard, can with the primary substation integrated system, access easily, has solved the general device communication protocol mostly to the comprehensive automation incompatibility problem.
Described human-computer interaction module 7, comprise button 7-2 and liquid crystal display 7-1.Facilitate where necessary the staff to carry out function setting to device, every service data shows in real time.Human-computer interaction module directly is connected with MCU by data, address bus.
Described power module 8 provides 5V power supply, positive and negative 12V power supply, 24V power supply.Positive and negative 12V power supply is to operational amplifier and the power supply of passage extender, and the 24V power supply is to relay and drive circuitry thereof.
The utility model device is by gathering various electric weight, the non-electric charge quantity signalling of box type transformer, after signal is carried out to analyzing and processing, provide corresponding information demonstration and outlet executive signal after setting logic judgement box type transformer duty, ruuning situation, relevant information is sent to the remote dispatching system, or corresponding operating is carried out in the instruction issued by the remote dispatching system.
The alternating voltage sampling channel of the utility model device, select the coupling sample resistance of high precision electro flow pattern voltage transformer (VT) in conjunction with the outside design, the auxiliary circuits such as operational amplification circuit, select different build-out resistors according to required collection electric pressure, do not need external primary voltage mutual inductor (PT), can directly measure 100V, 400V, 690V voltage.
The two-way temperature of the utility model device and two-way direct current acquisition channel, share 2 AD sampling channels, with the mode time sharing sampling of ping-pong type switching, with minimum hardware cost, realizes collection of multi analogy channel signal.
Claims (6)
1. an Intelligent wind power case becomes the protection measure and control device, it is characterized in that: it is by central processing module (1), electric quantity signal collecting module (2), non electrical quantity acquisition module (3), outlet execution module (4), memory module (5), communication module (6), human-computer interaction module (7) and power supply (8) form, electric quantity signal collecting module (2), human-computer interaction module (7), communication module (6) is connected with central processing module (1) respectively and realizes both-way communication, the signal of non electrical quantity acquisition module (3) is input to central processing module (1), the signal of central processing module (1) outputs to outlet execution module (4).
2. the Intelligent wind power case becomes the protection measure and control device as claimed in claim 1; it is characterized in that: described central processing module (1) consists of 32 embedded microcontroller MCU; it also is connected with large capacity SRAM, FLASH storage chip (5), and large capacity SRAM, FLASH storage chip (5) is connected with 32 embedded microcontroller MCU and realize both-way communication.
3. the Intelligent wind power case becomes the protection measure and control device as claimed in claim 1, and it is characterized in that: described electric quantity signal collecting module (2) comprises 12 road alternating current quantity sampling passages, two-way temperature acquisition passage and two-way direct current signal acquisition channel, described 12 road alternating current quantity sampling passages are the passages that gather box type transformer high-voltage side three-phase voltage, three-phase current and low-pressure side three-phase voltage, three-phase current, the electric quantity signal collected is inputted respectively electrical isolation circuit one (2-3), electrical isolation circuit one (2-3) outputs to filtering circuit (2-4), filtering circuit (2-4) outputs to discharge circuit (2-5), and discharge circuit (2-5) outputs to passage expanded circuit (2-8), two-way temperature acquisition passage gathers the signal of thermal resistance PT100 and inputs respectively electrical isolation circuit one (2-3), electrical isolation circuit one (2-3) outputs to filtering circuit (2-4), filtering circuit (2-4) outputs to discharge circuit (2-5), discharge circuit (2-5) outputs to three-wire system bridge-type metering circuit (2-6), three-wire system bridge-type metering circuit outputs to channel multiplexing controller (2-7), and channel multiplexing controller (2-7) outputs to passage expanded circuit (2-8), the electric quantity signal of two-way direct current signal acquisition channel collecting temperature transmitter (2-1) output, if temperature transmitter (2-1) output is DC current signal, DC current signal is input to current/voltage (I/U) change-over circuit (2-2), current/voltage (I/U) change-over circuit (2-2) outputs to electrical isolation circuit one (2-3), electrical isolation circuit one (2-3) outputs to filtering circuit (2-4), filtering circuit (2-4) outputs to discharge circuit (2-5), discharge circuit (2-5) outputs to channel multiplexing controller (2-7), channel multiplexing controller (2-7) outputs to passage expanded circuit (2-8), if temperature transmitter output is d. c. voltage signal, need not pass through current/voltage (I/U) change-over circuit (2-2), electrical isolation circuit one (2-3) is received in temperature transmitter (2-1) output directly input, passage expanded circuit (2-8) is connected with mould/number (A/D) change-over circuit (2-9) and realizes both-way communication, mould/number (A/D) change-over circuit (2-9) is connected with central processing module (1) and realizes both-way communication, and the signal of central processing module (1) is input to channel multiplexing controller (2-7).
4. the Intelligent wind power case becomes the protection measure and control device as claimed in claim 3, and it is characterized in that: described two-way temperature acquisition passage and two-way direct current signal acquisition channel share the AD sampling channel, with the mode time sharing sampling of ping-pong type switching.
5. the Intelligent wind power case becomes the protection measure and control device as claimed in claim 1; it is characterized in that: described non electrical quantity acquisition module (3) comprises 20 road non electrical quantity sense channels; the signal collected is input to photoelectric isolating circuit one; photoelectric isolating circuit one outputs to level shifting circuit, and level shifting circuit outputs to central processing module.
6. the Intelligent wind power case becomes the protection measure and control device as claimed in claim 1; it is characterized in that: described outlet execution module (4) comprises 8 exit passageways; the signal of central processing module is input to photoelectric isolating circuit two; photoelectric isolating circuit two outputs to driving circuit; driving circuit outputs to relay and carries out exit circuit, and relay is carried out exit circuit and outputed to 8 exit passageways.
7
.the Intelligent wind power case becomes the protection measure and control device as claimed in claim 1; it is characterized in that: described power module (8) provides 5V power supply, positive and negative 12V power supply and 24V power supply; positive and negative 12V power supply is to operational amplifier and the power supply of passage extender, and the 24V power supply is to relay and drive circuitry thereof.
8
.the Intelligent wind power case becomes the protection measure and control device as claimed in claim 1, it is characterized in that: described communication module (6) is provided with optical fiber interface (6-2), Ethernet interface (6-1), serial ports (6-3) and GPS interface (6-4), optical fiber interface (6-2), Ethernet interface (6-1) is connected to electrical isolation circuit two (6-5), electrical isolation circuit two (6-5) connects respectively ethernet controller (6-7) and optical fiber turns ethernet controller (6-6), optical fiber turns ethernet controller (6-6) and is connected with ethernet controller (6-7), ethernet controller is connected with central processing module and realizes both-way communication, central processing module and optical fiber turn ethernet controller and realize both-way communication, the signal of serial ports and GPS interface is input to photoelectric isolating circuit three (6-8), photoelectric isolating circuit three (6-8) output minute two-way, one tunnel outputs to central processing module, and another road outputs to GPS demoder (6-9), and GPS demoder (6-9) outputs to central processing module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220693751 CN202929471U (en) | 2012-12-14 | 2012-12-14 | Intelligent wind power box transformer protection, measurement and control device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220693751 CN202929471U (en) | 2012-12-14 | 2012-12-14 | Intelligent wind power box transformer protection, measurement and control device |
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| CN202929471U true CN202929471U (en) | 2013-05-08 |
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| CN 201220693751 Expired - Fee Related CN202929471U (en) | 2012-12-14 | 2012-12-14 | Intelligent wind power box transformer protection, measurement and control device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106444524A (en) * | 2016-10-27 | 2017-02-22 | 北京航天长征飞行器研究所 | Multi-path initiating explosive device control device |
| CN108594721A (en) * | 2018-06-05 | 2018-09-28 | 北京博阳慧源电力科技有限公司 | A kind of case change measure and control device that can automatically switch direct-flow input signal type |
| CN110187165A (en) * | 2019-07-08 | 2019-08-30 | 西安创特电气科技有限公司 | A kind of single current transformer takes can be with sample circuit and control method |
| CN110676701A (en) * | 2019-10-12 | 2020-01-10 | 南京智能仿真技术研究院有限公司 | Multi-core intelligent box transformer substation measurement and control integrated device |
| CN110784017A (en) * | 2019-10-31 | 2020-02-11 | 国网山东省电力公司东营供电公司 | Intelligent detection device and method for distribution transformer based on real-time data acquisition |
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2012
- 2012-12-14 CN CN 201220693751 patent/CN202929471U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106444524A (en) * | 2016-10-27 | 2017-02-22 | 北京航天长征飞行器研究所 | Multi-path initiating explosive device control device |
| CN108594721A (en) * | 2018-06-05 | 2018-09-28 | 北京博阳慧源电力科技有限公司 | A kind of case change measure and control device that can automatically switch direct-flow input signal type |
| CN108594721B (en) * | 2018-06-05 | 2023-12-19 | 北京博阳慧源电力科技有限公司 | Box transformer substation measurement and control device capable of automatically switching direct current input signal types |
| CN110187165A (en) * | 2019-07-08 | 2019-08-30 | 西安创特电气科技有限公司 | A kind of single current transformer takes can be with sample circuit and control method |
| CN110187165B (en) * | 2019-07-08 | 2024-05-14 | 西安创特电气科技有限公司 | Energy taking and sampling circuit of single current transformer and control method |
| CN110676701A (en) * | 2019-10-12 | 2020-01-10 | 南京智能仿真技术研究院有限公司 | Multi-core intelligent box transformer substation measurement and control integrated device |
| CN110784017A (en) * | 2019-10-31 | 2020-02-11 | 国网山东省电力公司东营供电公司 | Intelligent detection device and method for distribution transformer based on real-time data acquisition |
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