Method for automatically recording effective electric quantity of bus-tie and bypass electric energy meter and unit meter reading terminal
A meter reading terminal and automatic recording technology, which is applied in the direction of measuring electric variables, measuring devices, measuring time integration, etc., can solve the problem of inability to accurately classify and calculate and intelligently manage the electricity of power units, and the identification of effective electricity and power Loss and other issues
Inactive Publication Date: 2009-07-22
宋嫄琳
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Problems solved by technology
[0004] At present, none of the known meter reading terminals can discriminate the effective power of the main and side electric energy meter. Therefore, when there is a main and side electric energy meter in the power unit managed by the meter reading terminal, the meter reading terminal cannot realize the monitoring of the power unit. Accurate classification, calculation and intelligent management of electricity. When the power consumption of the power unit is in an abnormal state, the basis for judgment will be lost. If it cannot be processed in a timely and effective manner, it may lead to a large amount of power loss and measurement disputes
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[0016] The present invention will be further described below in conjunction with accompanying drawing.
[0017] figure 1 It is a schematic diagram of the hardware structure of the present invention. The unit meter reading terminal is composed of a main board 1, a keyboard, a mouse, a hard disk, a display 2 and a switch I / O interface board 4. The unit meter reading terminal is connected to the electric energy meter of the power unit to be read through the data communication interface 3 of the main board 1 - CN35. These electric energy meters are all input and output electric energy meters of the electric power unit, including one or more bus couplers And bypass electric energy meter. The main board 1 is the POS564 board; the CN1 interface of the main board 1 is connected to the switch I / O interface board 4, and the input terminal of the switch I / O interface board has 5——AC electromagnetic relay KZ, the model is MY2NJ-AC220, the switch I / O The input control end of the AC elect...
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The invention discloses a method for automatically recording effective electric quantity of a bar uniting electric energy meter and a unit reading terminal. The structure is as follows: the data communication interface of the terminal is connected with communication interfaces of all input output electric energy meters of the managed electric power unit, including one or several bar uniting electric energy meters. The terminal has a switch I / O interface board, the interface board at least has an input port, the input port is connected with secondary contacts of a by-pass bus disconnecting link, and the terminal determines whether to read the meter code of the bar uniting electric energy meter by reading the switch signal state of the external by-pass bus disconnecting link. The terminal can accurately judge the effective electric quantity of the by-pass bus disconnecting link, thereby being capable of realizing classification and calculation of effective electric quantity of the whole unit; when the unit electric quantity is found to be unbalanced and over the prescribed value, the normal opened contact at the output end of the switch I / O interface is closed and an alarm message is sent so that the accuracy and fairness of electric energy measurement are ensured.
Description
Technical field: [0001] The invention relates to a method for automatically recording the effective electric quantity of a main-side electric energy meter and a unit meter reading terminal. The unit meter reading terminal is mainly used for automatic meter reading and monitoring and management of electric quantity in substations and electric power systems. Background technique: [0002] The bus and bypass watt-hour meter of the power system substation (full name is the bus coupler and bypass watt-hour meter) is a kind of watt-hour meter with two functions: when it operates as a bus tie, the recorded power is only between the two buses. The exchanged electricity is not effective electricity and is not used for economic calculation; however, when the energy meter is used as a bypass operation, it replaces the energy meter of a specific line, and the electricity recorded at this time is the replaced one. The electricity of the line, the electricity recorded at this time is the ...
Claims
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IPC IPC(8): G01R11/00G08C19/00
Inventor 宋嫄琳
Owner 宋嫄琳