Relay protection tester for smart grid
A relay protection, smart grid technology, applied in the direction of instruments, measuring electricity, measuring devices, etc., can solve the problems of no heat dissipation function, supporting use of industrial computers, large size, etc., and achieve the effect of increasing production costs and being convenient to carry.
Active Publication Date: 2016-07-20
CHENGDU TESIENT INSTR
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Problems solved by technology
[0004] However, the existing optical digital relay protection tester for smart grid usually has a high data processing capacity, but does not have a specific heat dissipation function, or even if it has a heat dissipation function, it is installed with a fan to make the volume larger; Compatible with industrial computer
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[0015] Further describe the technical scheme of the present invention in detail below in conjunction with accompanying drawing:
[0016] Such as figure 1 , figure 2 As shown, in this embodiment, the test box in the tester has 6 circuit boards in total:
[0017] 1. Power board, the power board is externally connected to 220v AC, and outputs 5V and plus or minus 12v DC to supply power for other modules.
[0018] 2. Weld the ST board with ST port and B code port; the B code port is connected to the IRIG-B synchronization unit (module model IEEE1588), and when the IRIG-B synchronization unit is used as the B code source, through the programmable logic device (In this embodiment, it is connected with the DSP on the main board) The coding of the IRIG-B code is completed by programming, and the data transmission of the IRIG-B code format is provided externally at the IRIG-B synchronization unit; when there is a B code source outside, receive the external The IRIG-B code is decode...
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The invention discloses a relay protection tester for the smart grid. The tester comprises an industrial personal computer and a test box connected with the industrial personal computer, the text box comprises an external casing and an internal circuit board, and the internal circuit board comprises a mainboard, an ST board, an on / off input circuit board, an on / off and small signal output circuit board and a power board, wherein the mainboard is connected with the communication board via a network cable, the mainboard is connected with the ST board, the on / off input circuit board and the on / off and small signal output circuit board via a flat cable, the industrial personal computer communicates with the communication board and the mainboard via the network cable, the mainboard clings to the inner wall of the external casing, and the outer wall of the external casing is provided with radiation teeth. Thus, the test box is integrated with the industrial control computer, so that the tester is portable; and two radiation manners are used, the size of the tester is not increased, the production cost of the tester is not increased much, and it is only required to modify the external casing a litter during production.
Description
technical field [0001] The invention relates to a smart grid relay protection tester. Background technique [0002] Due to the small amount of information feedback in traditional substations, the difficulty of summarizing and analyzing fault information, the complicated and cumbersome wiring, and the safety risks for on-site test operators, as well as the rapid development of information, communication and network technologies in recent years, people have begun to try to use optical Communication to overcome these shortcomings of traditional substations, coupled with the country's strong support for digital substations, makes the optical digitalization of substations including power systems inevitable. For this change, corresponding products must be produced to match it. [0003] Further, with the development of optical digitalization in the power system, as the country vigorously promotes the digitalization and networking of electric power control, and with the rise of opti...
Claims
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Login to View More IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 王周蓉
Owner CHENGDU TESIENT INSTR