Generator end TV detection device

Abstract

The utility model provides a generator end TV detection device, which comprises a CPU core adapter plate, an AD sampling chip, a mainboard processor chip, a communication loop module, an output loop module and an input module are integrated on the CPU core adapter plate, the AD sampling chip is externally connected with an AC plug-in, and the mainboard processor chip is connected with the communication loop module. The communication loop module is electrically connected with the first power supply plug-in and the second power supply plug-in, the output loop module is externally connected with the first power supply plug-in and the input and output board, and the input and output board is connected with the input loop module through the input conversion module. And the mainboard processor chip is used for sampling, calculating, analyzing and counting the signal to obtain measurement data and obtaining a protection output signal according to protection logic, and a switching value signal is input into the input and output board card and then is isolated to the CPU through an optical coupler. According to the utility model, the PU core adapter plate is adopted, and the AD sampling chip, the mainboard processor chip, the communication loop module, the output loop module and the input module are integrated on the CPU core adapter plate, so that the device is complex in function, flexible in configuration and high in measurement precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to TV detection device field, concretely relates to a generator end TV detection device. BACKGROUND

[0002] Generator machine end PT online monitoring device (hereinafter referred to as device) is used for large and medium-sized generator, and the function of the online monitoring device of generator machine end PT is completed.Provide sensitive generator three groups machine end PT (wherein PT3 is the PT special for turn-to-turn protection) abnormal criterion, provide PT abnormal discrimination contact point for generator measurement metering system, excitation system and DCS system, solve the problem that excitation regulator may excite error when PT primary fuse slowly fuses, solve the problem that traditional measurement metering system does not have PT wire breakage discrimination, solve the problem that turn-to-turn special PT primary wire breakage may cause stator turn-to-turn protection misoperation, provide time, communication, wave recording and action report (trip report, self-checking report, displacement report, operation record) recording function.But part of the equipment has the defects such as single function, lack of flexible configuration and inability to meet the use requirements of most customers. SUMMARY

[0003] (I) technical problem to be solved

[0004] The utility model discloses a kind of generator end TV detection devices, solve the defect that part of the equipment exists single function, lack of flexible configuration.

[0005] (II) technical scheme

[0006] In order to solve the above technical problems, the utility model provides a kind of generator end TV detection devices, comprising: CPU core adapter plate, AD sampling chip, mainboard processor chip, communication loop module, open loop module and open-in module are integrated on the CPU core adapter plate, the AD sampling chip is connected with AC plug-in, the communication loop module is electrically connected with first power plug-in and second power plug-in, the open loop module is connected with first power plug-in and open-in-out board outside, the open-in-out board is connected with open-in loop module by open-in conversion module, the mainboard processor chip is used to sample, calculate, analyze, statistics and obtains measurement data to signal, and protection output signal is obtained according to protection logic, and switch quantity signal input open-in-out board card is isolated to CPU after passing through opto-coupler.

[0007] Optionally, the mainboard chip adopts ARM processor chip.

[0008] Optionally, the first power plug-in is also integrated communication interface and export.

[0009] Optionally, the AD sampling chip is externally connected with an AC plug, and the AC plug receives a machine end PT1 three-phase voltage signal, a machine end PT1 zero sequence voltage signal, a machine end PT2 three-phase voltage signal, a machine end PT2 zero sequence voltage signal, a machine end PT3 three-phase voltage signal and a machine end PT3 zero sequence voltage signal.

[0010] Optionally, the AC plug simultaneously receives a machine end protection CT1 three-phase current.

[0011] Optionally, the CPU core adapter board is further integrated with a CPU plug, and the CPU plug is externally connected with an MMI board.

[0012] Optionally, the MMI board is integrated with an indicator light, a liquid crystal and a keyboard.

[0013] Optionally, the CPU core adapter board is further integrated with a FLASH memory.

[0014] Optionally, the CPU core adapter board is further integrated with a static random access memory.

[0015] Optionally, the CPU core adapter board is further integrated with a battery backed up random access memory.

[0016] (Three) beneficial effects

[0017] The generator end TV detection device has the following advantages:

[0018] 1) The CPU core adapter board is adopted, the CPU core adapter board is integrated with an AD sampling chip, a mainboard processor chip, a communication loop module, an outgoing loop module and an incoming module, the CPU core adapter board has complex functions, flexible configuration and high measurement precision. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a connection frame diagram of the CPU core adapter board of the generator end TV detection device embodiment 1 of the utility model. DETAILED DESCRIPTION

[0020] The specific implementation of the utility model will be further described in detail in combination with the drawings and embodiments. The following examples are used to illustrate the utility model, but are not used to limit the scope of the utility model.

[0021] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two. The person skilled in the art can understand that all or part of the processes in the above-mentioned embodiment method can be completed by computer program to instruct relevant hardware, and the computer program can be stored in a nonvolatile computer readable storage medium, and when the computer program is executed, the process of the embodiment of each method described above can be included. Wherein, any reference to memory, storage, database or other medium used in each embodiment provided by the application can include at least one of nonvolatile and volatile memory.

[0022] Embodiment 1

[0023] As Figure 1 Indicated, the utility model provides a kind of generator end TV detection device, it includes: CPU core adapter plate, AD sampling chip, mainboard processor chip, communication loop module, open out loop module and open-in module are integrated on the CPU core adapter plate, the AD sampling chip is connected with AC plug-in, the communication loop module is electrically connected first power plug-in and second power plug-in, the open out loop module is connected with first power plug-in and open-in open-out board outside, the open-in open-out board is connected open-in loop module by open-in conversion module, the mainboard processor chip is used to sample, calculate, analyze, and obtain measurement data by statistics to signal, and protection output signal is obtained according to protection logic, and switch quantity signal is input open-in open-out board card, and then it is isolated to CPU by opto-coupler.

[0024] In the embodiment, the mainboard chip adopts ARM processor chip. High-performance multi-core processor, high-precision synchronous chip and large-capacity high-speed storage chip are used in CPU core adapter board card.

[0025] In the embodiment, the first power plug-in is also integrated communication interface and outlet. The AD sampling chip is connected with AC plug-in, and the AC plug-in receives machine end PT1 three-phase voltage signal, machine end PT1 zero sequence voltage signal, machine end PT2 three-phase voltage signal, machine end PT2 zero sequence voltage signal, machine end PT3 three-phase voltage signal and machine end PT3 zero sequence voltage signal. The AC plug-in receives machine end protection CT1 three-phase current simultaneously.

[0026] In the embodiment, the first power plug-in includes 2-way RS485 communication interface, 2-way CAN communication interface and 1-way RJ45 network interface.

[0027] The CPU core adapter plate is further integrated with a CPU plug-in, and the CPU plug-in is externally connected with an MMI board. The MMI board is integrated with an indicator light, a liquid crystal and a keyboard. The CPU core adapter plate is further integrated with a FLASH memory. The CPU core adapter plate is further integrated with a static random access memory. The CPU core adapter plate is further integrated with a band erasable programmable read-only memory.

[0028] The device uses a standard 6U full-aluminum shell case with a structure size of 208*215*265.4mm, and is generally embedded for installation, which can be installed on a screen cabinet in a control room or dispersedly installed on a switch cabinet.

[0029] The device is composed of a communication board card, an AC input board card, an input / output board card and a power supply board card at the rear part, which are convenient to plug and replace, and the front part is a display board card, and the device is connected by a CPU core adapter plate.

[0030] In the embodiment, a high-reliability power module and a matching EMC filter module are used on the power supply board card.

[0031] In the embodiment, a 480*320 pixel array color liquid crystal screen and a touch screen input are used in the display board card, which is convenient to operate.

[0032] In the embodiment, the CPU samples, calculates, analyzes and counts signals to obtain measurement data, and obtains a protection output signal according to a protection logic.

[0033] The above embodiments are only used for describing the utility model, and the mechanism, connection mode and the like of each component can be changed, and any equivalent transformation and improvement on the basis of the technical scheme of the utility model should not be excluded from the protection scope of the utility model.

Claims

1. A generator end TV detection device characterized by, The application relates to a CPU core adapter plate which is integrated with an AD sampling chip, a mainboard processor chip, a communication loop module, an outgoing loop module and an incoming module, wherein the AD sampling chip is externally connected with an AC plug-in element, the communication loop module is electrically connected with first and second power plug-in elements, the outgoing loop module is externally connected with the first power plug-in element and an incoming and outgoing board, the incoming and outgoing board is connected with an incoming loop module through an incoming conversion module, the mainboard processor chip is used for sampling, calculating, analyzing and counting measurement data and obtaining a protection output signal according to protection logic, and a switch signal is input into the incoming and outgoing board card and then is isolated to the CPU through an optical coupling. The mainboard processor chip adopts an ARM processor chip.

2. The generator end TV detection apparatus of claim 1, wherein The first power plug-in element is integrated with a communication interface and an outlet.

3. The generator end TV detection apparatus of claim 2, wherein The AD sampling chip is externally connected with an AC plug-in element which is used for receiving machine end PT1 three-phase voltage signals, machine end PT1 zero sequence voltage signals, machine end PT2 three-phase voltage signals, machine end PT2 zero sequence voltage signals, machine end PT3 three-phase voltage signals and machine end PT3 zero sequence voltage signals.

4. The generator end TV detection device of claim 1 or 2 or 3, wherein, The AC plug-in element simultaneously receives machine end protection CT1 three-phase current signals.

5. The generator end TV detection apparatus of claim 4, wherein, The CPU core adapter plate is further integrated with a CPU plug-in element which is externally connected with an MMI board.

6. The generator end TV detection device of claim 1 or 2 or 3, wherein, The MMI board is integrated with an indicating lamp, a liquid crystal and a keyboard.

7. The generator end TV detection apparatus of claim 6, wherein The CPU core adapter plate is further integrated with a FLASH memory.

8. The generator end TV detection device of claim 1 or 2 or 3, wherein, The CPU core adapter plate is further integrated with a static random access memory.

9. The generator end TV detection device of claim 1 or 2 or 3, wherein, The CPU core adapter plate is further integrated with a flash erasable programmable read-only memory.

10. The generator end TV detection device of claim 1 or 2 or 3, wherein, ​

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