A power distribution system for a double-core electric energy meter
A power distribution and electric energy meter technology, which is applied in the measurement of electrical variables, instruments, measuring devices, etc., can solve problems such as failure to achieve independent operation, inability to provide stable voltage for independent operation, and inability to ensure the normal operation of dual-core electric energy meters. The effect of stable operation
Active Publication Date: 2019-05-17
NINGBO SANXING MEDICAL & ELECTRIC CO LTD
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Problems solved by technology
[0002] At present, the integrated design of the legal measurement part and the management part of the domestic electric energy meter (that is, the metering core module and the non-metering core module are integral structures), has not realized the independent operation of the two, and the promotion of the national standard system based on IR46, the electric energy meter is moving toward The transition of dual-core electric energy meters, in which the legal measurement part and the management part of the dual-core electric energy meter operate independently, the existing power management system of the electric energy meter is only suitable for the electric energy meter with the integrated design of the legal measurement part and the management part Applicable to dual-core electric energy meters, unable to provide stable voltage for the independent operation of the legal measurement part and management part of the double-core electric energy meter, and cannot guarantee the normal operation of the double-core electric energy meter
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[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0023] Such as figure 1 , figure 2 and image 3 As shown, a power distribution system of a dual-core watt-hour meter of the present invention includes a power module 1 and a power distribution module 2; the power module 1 includes a main power supply 101 with at least three output terminals; the power distribution module 2 includes several step-down A voltage stabilizing unit 201, several diodes 202 and a short circuit protection module 6; the first output terminal of the main power supply 101 is connected to one end of the first step-down voltage stabilizing unit 201, and the other end of the first step-down voltage stabilizing unit 201 is connected to the dual The metering chip 301 of the metering core module of the core electric energy meter is connected; the second output end of the main power supply 101 is connected with one end of the second step-dow...
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The invention discloses a power source distribution system of a dual-core electric energy meter. The power source distribution system comprises a power source module (1); the power source module (1) includes a main power source (101) having N output terminals; the power source distribution system further comprises M power source distribution circuits of which the input ends are correspondingly connected with the N output ends of the main power source (101); each power source distribution circuit comprises P diodes and Q buck voltage-stabilization units which are connected together forwardly; and the output ends of the power source distribution circuits are correspondingly connected with a management module (401) of the management core of the dual-core electric energy meter, a processing module (302) of the metering core of the dual-core electric energy meter, the metering chip (301) of the metering core of the dual-core electric energy meter and a clock module (303) of the processing module (302) of the metering core of the dual-core electric energy meter. According to the power source distribution system of the dual-core electric energy meter of the invention, independent and separate lines are adopted to rationally distribute a power source, so that the reliable and stable operation of the metering core and management core of the dual-core electric energy meter can be realized.
Description
technical field [0001] The invention relates to a power supply distribution system of a double-core electric energy meter. Background technique [0002] At present, the integrated design of the legal measurement part and the management part of the domestic electric energy meter (that is, the metering core module and the non-metering core module are integral structures), has not realized the independent operation of the two, and the promotion of the national standard system based on IR46, the electric energy meter is moving toward The transition of dual-core electric energy meters, in which the legal measurement part and the management part of the dual-core electric energy meter operate independently, the existing power management system of the electric energy meter is only suitable for the electric energy meter with the integrated design of the legal measurement part and the management part Applicable to dual-core electric energy meters, it cannot provide stable voltage for ...
Claims
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IPC IPC(8): G01R22/06
CPCG01R22/061
Inventor 金海波明晋平周伟光张若蒙杜小涛
Owner NINGBO SANXING MEDICAL & ELECTRIC CO LTD