Method for locating current consumption point, processing device, current sensor and current measuring instrument
A technology of current sensor and current consumption, applied in the direction of measuring current/voltage, transmitting meter data, application of power line communication, etc., can solve problems such as increasing the quality of system connection, phase consumption power imbalance
Active Publication Date: 2017-03-01
SCHNEIDER ELECTRIC IND SAS
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Problems solved by technology
For example, it adds to the estimation of poor system connection quality, the number of long outages, imbalances between the phases consuming power in three-phase systems, and the uncertain location and description of electrical energy theft or spoofing
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[0041] exist figure 1 , the MV (medium voltage) outgoing lines in the current distribution system 1 are shown diagrammatically, including an HV / MV (high voltage / medium voltage) switching station 3 equipped with a plurality of MV three-phase outgoing branches B 1 ,...B n .
[0042] In the following, we describe the corresponding branch B 1 The MV and LV distribution system of , which is similar to that corresponding to the other branches.
[0043] MV branch B 1 Connect multiple MV / LV (Medium Voltage / Low Voltage) switching stations 2, three of which are shown in figure 1 .
[0044] Typically, the number of MV / LV (Medium Voltage / Low Voltage) switching stations is between 3 and 15. The MV / LV switching station 2 is arranged between the MV distribution system and the LV distribution system.
[0045] For example, the voltage on the MV system is from 3 to 33kV, and the voltage on the LV system is from 110V to 600V.
[0046] Below, is positioned at figure 1 The MV / LV switching...
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The invention relates to a method for locating each charge consumption point (10a_1, 10b_1) associated with at least one charge in a current distribution system, a respective current cable (20a1, 20b1) connecting each consumption point to a central node , said distribution system comprises a processing device (40); said method comprises the following steps, after installation on cables of current sensors (21a1, 21b1), suitable for measuring currents circulating in respective associated cables: by the processing device (40) Select a current consumption point; at the consumption point, when receiving a command transmitted by the processing device, perform a connection and / or disconnection operation on the charge associated with the selected consumption point; at the current sensor ( In 21a1, 21b1), the current sensor associated with the cable connecting the selected consumption point is selected as a function of at least the respective measurements made by said sensor and a standard current profile determined as a function of the commanded operation.
Description
technical field [0001] The invention relates to a current distribution system from a central node to current consumption points, wherein each current consumption point is associated with at least one charge. In these distribution systems, individual current cables connect each consumption point to a central node. In some cases, a respective flow meter placed at each consumption point is adapted to measure the energy consumed by the associated consumption point. Background technique [0002] The central node is, for example, a station, called an MV / LV station, connected between the Medium Voltage (MV) distribution system and the Low Voltage (LV) distribution system to which local customers are connected. [0003] The LV network is dense, sometimes buried, with cables of mixed materials and ages. In some cases, those that have not been outlined or summarized, they are used and may have been modified, extended and patched by the respective power control systems, which are som...
Claims
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IPC IPC(8): G01R31/08G01R19/00
CPCG01D2204/12H04B3/546H04B2203/5433H04Q9/00H04Q2209/43H04Q2209/60
Inventor M·克莱门斯E·康蒂尼O·考特劳F·沃特洛特
Owner SCHNEIDER ELECTRIC IND SAS