CN2459670Y - Collective and distributive type electric power fault wave recording device - Google Patents
Collective and distributive type electric power fault wave recording device Download PDFInfo
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- CN2459670Y CN2459670Y CN 00265528 CN00265528U CN2459670Y CN 2459670 Y CN2459670 Y CN 2459670Y CN 00265528 CN00265528 CN 00265528 CN 00265528 U CN00265528 U CN 00265528U CN 2459670 Y CN2459670 Y CN 2459670Y
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Abstract
The utility model relates to a collective and distributive type wave recording device for electric power faults, which is composed of a current transducer CT, a voltage transducer PT, an analog-digital converter A/D, microprocessors CPU1, CPU2, a liquid crystal display device TFT, a floppy drive DISK, a double-port random access memory FLASH and a COM communication port. The device uses a double-CPU single chip computer to control circuits, and fault waved curves, fault data and analytical results can be displayed by the true color liquid crystal display; the internal storage can store fifty times, and wave shape can last ten seconds every time; a clock adopts an external clock circuit; a high-speed industrial-frequency analog signal collecting system circuit is used, and alternating current analog signals of eight circuits can be connected. When an electric network fails, the device can act in time, the information of the electric network is converted into real-time data to record, storage, analyze and display, and is transmitted to an upper terminal microcomputer through the communication port for failure processing. The device has the advantages of low cost and high reliability.
Description
The utility model relates to a kind of collecting and distributing type power failure recorder that is applicable to 66 kilovolts and above electric pressure electric network fault record ripple and analysis.
The centralized power failure recorder of a manufacturer production surplus in the of at present domestic existing 20, every covering device can be enrolled 30 two road analog signalses.Its shortcoming is to concentrate to use a power supply, a microcomputer, a floppy drive, in case one of them parts damages takes place, then whole device just quits work.And need configuration screen and a large amount of cable, and the cost height, reliability is low.
The purpose of this utility model is in order to overcome above-mentioned shortcoming, provides that a kind of cost is low, the collecting and distributing type power failure recorder of dependable performance.
For achieving the above object, the technical solution of the utility model is: a kind of collecting and distributing type power failure recorder, by power pack CT, voltage changer PT, modulus converter A/D, microprocessor CPU 1 and CPU2, LCD TFT, floppy drive DISK, Double Port Random Memory FLASH and COM communication port are formed, power pack CT and voltage changer PT are respectively by being connected the A/D analog to digital converter behind the amplifier, link to each other with microprocessor CPU 1 again, the CPU1 bus connects microprocessor CPU 2, connects the TFT LCD by CPU2, floppy drive DISK, Double Port Random Memory FLASH and COM communication port.
The utility model adopts two CPU single chip machine controlling circuits, and panel adopts very color liquid crystal display, can show fault waveform curve, fault data and analysis result; Internal memory adopts the 1.5M dual port RAM, can preserve 50 times, each 10 second waveform.Clock adopts outer clock circuit; Input circuit adopts high speed power frequency analog signals acquisition system circuit, can insert eight road ac analog signals.When electrical network broke down, the action in time of this device was that real time data writes down, stores, analyzes and show and is transferred to the upper end microcomputer by communication port with the information translation of electrical network, for the handling failure use of technical management department.This installation cost is low, the reliability height.
Fig. 1 is an one-piece construction synoptic diagram of the present utility model.
Fig. 2 is the utility model power pack CT circuit diagram.
Fig. 3 is the utility model voltage changer PT circuit diagram.
Fig. 4 is address bus, data bus, control bus, communication bus circuit connection diagram.
Below in conjunction with accompanying drawing embodiment of the present utility model is described further: a kind of collecting and distributing type power failure recorder, by power pack CT, voltage changer PT, modulus converter A/D, microprocessor CPU 1 and CPU2, LCD TFT, floppy drive DISK, Double Port Random Memory FLASH and COM communication port are formed, power pack and voltage changer are respectively by being connected the A/D analog to digital converter behind the amplifier, link to each other with microprocessor CPU 1 again, the CPU1 bus connects microprocessor CPU 2, connects the TFT LCD by CPU2, floppy drive DISK, Double Port Random Memory FLASH and COM communication port.The circuit of voltage changer PT is that transformer is in parallel with π shape filter, its output terminal amplifier 2654 input end parallel connections; The circuit of power pack CT is that the CT transmitter is in parallel with π shape filter, its output terminal amplifier 2654 input end parallel connections.
Measured industrial frequency AC electric current becomes the microcomputer standard signal with analog quantity or power frequency ac voltage analog signals through power pack CT and voltage changer PT, after amplifier amplifies, connect A/D (MAX126CX) sample conversion again and become digital quantity, be responsible for control action and information acquisition management by CPU1 (80C196KC) microprocessor; Be responsible for the data that CPU1 sends are put in order, calculate, analyzed by CPU2 (80C196KC) microprocessor.The result is delivered to LCD TFT display waveform curve and fault data and analysis result respectively; Deliver to the deposit of DISK floppy drive; Deliver to the FLASH Double Port Random Memory and preserve data; Deliver to the COM communication port toward the host computer teletransmission.
The fault current I or the bus-bar fault voltage U 1 that are produced by electrical network become the voltage signal that microcomputer is used through CT or PT transducer, carry out filtering by C1 to C4, R1 to R3 again, be connected to the amplifying circuit of forming by 2654 integrated amplifiers, R4 to R6, C5 and amplify and deliver to the A/D analog to digital converter.
A presentation address bus among the figure, D represents data bus, and C represents control bus, and S represents communication bus.This device uses the DS12887 outer clock circuit, and serial communication adopts the MAX1480 chip to connect microprocessor CPU 1 and CPU2.CPU1 (80C196KC) microprocessor is responsible for the startup definite value of collection, storage and the device of analog to digital conversion quantity of information.At first CPU1 is by control bus, address bus, data bus, GAL16V8 decoding and 74LS373 addressing, choose MAX126 (A/D) analog to digital converter, convert real-time electric current I or voltage U analog quantity to digital quantity in order and deliver to 62256 (RAM) random access memory and ID17132 (dual port RAM) random access memory.27C512 (EPROM) program storage is the chip by the artificial record of Write fault in advance wave-path preface.By three-bus program is called in CPU1 from 27C512 (EPROM) program storage, and compare and computing, judge whether starter gear with digital quantity that 62256 (RAM) that call in CPU1 deposit in the storer at random.Then data are sent into ID17132 (dual port RAM) random access memory.CPU2 (80C196KC) microprocessor is responsible for handling information data in ID17132 (FLASH dual port RAM) random access memory.The information data of the supervisory routine in 27C512 (EPROM) program storage being read in CPU2 (80C196KC) microprocessor and ID17132 (FLASH dual port RAM) random access memory by three-bus compares.By character, type, the numerical value of fault analysis and judgement information, and result and squiggle delivered to TFT display and DISK3 cun floppy drive and communication port.
Claims (3)
1, a kind of collecting and distributing type power failure recorder, it is characterized in that it is made up of power pack CT, voltage changer PT, modulus converter A/D, microprocessor CPU 1 and CPU2, LCD TFT, floppy drive DISK, Double Port Random Memory FLASH and COM communication port, power pack CT and voltage changer PT are respectively by being connected the A/D analog to digital converter behind the amplifier, link to each other with microprocessor CPU 1 again, the CPU1 bus connects microprocessor CPU 2, connects TFT LCD, floppy drive DISK, Double Port Random Memory FLASH and COM communication port by CPU2.
2, collecting and distributing type power failure recorder according to claim 1, the circuit that it is characterized in that described voltage changer PT are that transformer is in parallel with π shape filter, its output terminal amplifier 2654 input end parallel connections.
3, collecting and distributing type power failure recorder according to claim 1, the circuit that it is characterized in that described power pack CT are that the CT transmitter is in parallel with π shape filter, its output terminal amplifier 2654 input end parallel connections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00265528 CN2459670Y (en) | 2000-12-28 | 2000-12-28 | Collective and distributive type electric power fault wave recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00265528 CN2459670Y (en) | 2000-12-28 | 2000-12-28 | Collective and distributive type electric power fault wave recording device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2459670Y true CN2459670Y (en) | 2001-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00265528 Expired - Fee Related CN2459670Y (en) | 2000-12-28 | 2000-12-28 | Collective and distributive type electric power fault wave recording device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2459670Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929178A (en) * | 2012-11-10 | 2013-02-13 | 大连东方电器制造有限公司 | Fault recording and analyzing device |
-
2000
- 2000-12-28 CN CN 00265528 patent/CN2459670Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102929178A (en) * | 2012-11-10 | 2013-02-13 | 大连东方电器制造有限公司 | Fault recording and analyzing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |