Data acquisition controller for circuit breaker and method for controlling circuit breaker
A data acquisition and controller technology, applied in circuit devices, electrical components, etc., can solve the problems of difficulty in monitoring, protection and control of distribution network systems, unreliability, and restricting the development of distribution network automation.
Active Publication Date: 2018-09-25
西安兴汇电力科技有限公司 +2
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Problems solved by technology
In the implementation and application, either the investment is large, or the wiring is complex and unreliable, and it may be affected by external factors such as environmental location, weather and load, which limits the development of distribution network automation.
For this reason, someone has developed a self-energy intelligent circuit breaker. However, the self-energy intelligent circuit breaker in the prior art still lacks data on simple structure, novel and reasonable design, convenient installation and use, high working reliability, and good safety performance. The acquisition controller also lacks an effective control method. The existing technology cannot accurately measure the three-phase current, three-phase phase voltage, and current-voltage phase difference in real time. It is difficult to realize the monitoring, protection and control of the distribution network system in the determination and elimination of the fault section in the case of a line fault
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[0062] Such as figure 1 As shown, the data acquisition controller for a circuit breaker of the present invention includes an electronic current and voltage transformer 3, a controller module 1, a storage battery for storing the electrical energy output by the energy acquisition device 4, and a The current signal conditioning circuit 5 for conditioning the current signal output by the voltage transformer 3 and the voltage signal conditioning circuit 6 for conditioning the voltage signal output by the electronic current and voltage transformer 3; figure 2 As shown, the electronic current and voltage transformer 3 includes a housing 3-1, and a phase A voltage and current acquisition circuit, a phase B voltage and current acquisition circuit, and a phase C voltage and current acquisition circuit arranged inside the housing 3-1, such as Figure 3A As shown, the A-phase voltage and current acquisition circuit includes an A-phase coil 3-2 and a resistor R101 connected in parallel with t...
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The invention discloses a data acquisition controller for a circuit breaker. The data acquisition controller comprises an electronic type current voltage transformer, a controller module, a storage battery, a current signal processing circuit and a voltage signal processing circuit, wherein the electronic type current voltage transformer comprises a shell, and an A phase voltage current acquisition circuit, a B phase voltage current acquisition circuit and a C phase voltage current acquisition circuit which are arranged in the shell; the output end of the current signal processing circuit and the output end of the voltage signal processing circuit are both connected with the input end of the controller module; and the output end of the controller module is connected with a relay. The invention also discloses a control method for the circuit breaker by adopting the data acquisition controller for the circuit breaker. The data acquisition controller is creative in design, convenient and rapid to use, high in working reliability, high in safety, high in practicability, and high in popularization and application value, so that the automatic development of a distribution network can be promoted.
Description
Technical field [0001] The invention belongs to the technical field of power system automation, and specifically relates to a data acquisition controller for a circuit breaker and a method for controlling the circuit breaker. Background technique [0002] In the construction of the distribution network automation system, the problem of obtaining electricity from automation devices has always been a major bottleneck in the upgrading and transformation of distribution network lines. Some use high voltage voltage transformers to obtain electricity, some use high voltage current transformers to obtain electricity, and some use high voltage current transformers to obtain electricity. There are many disadvantages in using solar power generation devices to obtain electricity. In the implementation and application, either the investment is large, or the wiring is complicated and unreliable, and it may also be affected by external factors such as environmental location, weather and load s...
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IPC IPC(8): H02J13/00
CPCH02J13/0006
Inventor 张鹏程胡晓耘郭琳云韩春立陈明涛沈阳安李光辉
Owner 西安兴汇电力科技有限公司