Analog simulation demonstration system of field bus communication breaker
A field bus, simulation technology, applied in the direction of instruments, teaching models, educational appliances, etc., can solve the problems of difficult electrical connection, no mobility, large size, etc., to achieve good mobility, reduced size, functional many effects
Inactive Publication Date: 2010-12-08
ZHEJIANG TENGEN ELECTRIC
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Problems solved by technology
[0003] In order to overcome the shortcomings of the existing circuit breaker simulation demonstration system, which are bulky, difficult to realize electrical connection, lack of mobility, and high cost, the present invention provides a greatly reduced volume, easy electrical connection, good mobility, and low cost. Cost-effective fieldbus communication circuit breaker simulation demonstration system
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Embodiment Construction
[0017] The present invention will be further described below in conjunction with the accompanying drawings.
[0018] refer to Figure 1 to Figure 5 , a field bus communication circuit breaker simulation simulation demonstration system, including an operation console, an analog annunciator, a display part and a field bus, an analog signal output terminal of an analog annunciator and a secondary side of a circuit breaker in a circuit to be simulated The current transformer is connected, the analog annunciator includes a transformer, a digital potentiometer, the first 485 communication interface for current setting and the second 485 communication interface for output display, the mains is connected to the transformer, and the transformer is connected to the The digital potentiometer is connected, and the digital potentiometer is connected with the analog signal output terminal; the console includes a keyboard input interface for keyboard input to set the current of each circuit ...
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The invention relates to an analog simulation demonstration system of a field bus communication breaker, which comprises an operating platform, analog signal devices, a display part and a field bus, wherein an analog signal output end of an analog signal device is connected with a current transformer at the secondary side of a breaker, and each analog signal device comprises a transformer, a digital potentiometer, a first 485 communication interface and a second 485 communication interface, the transformer is connected with the digital potentiometer, and the digital potentiometer is connectedwith the analog signal output end; the operating platform comprises a keyboard input interface and a third 485 communication interface; the display part comprises a current display screen, a time display screen and a fourth 485 communication interface; the third 485 communication interface is connected with the field bus, and the first 485 communication interface of each analog signal device is connected with the field bus; and the second 485 communication interface is connected with the fourth 485 communication interface through a 485 communication line. The volume of the analog simulation demonstration system is greatly reduced, electrical connection is easily realized, the mobility is good, and the cost is reduced.
Description
technical field [0001] The invention relates to a circuit breaker simulation demonstration system. Background technique [0002] The electronic molded case circuit breaker has functions such as three-stage protection and grounding protection, and the molded case circuit breaker is powered by a self-generated power supply. When the circuit breaker is working normally, it is necessary to pass a large current to realize normal operation in order to test and demonstrate functions such as three-stage protection. Usually, the test and function demonstration of the circuit breaker are operated by the three-stage protection console. However, the operating table capable of supplying low voltage and high current (above 10000A) is bulky, and the electrical connection is not easy to realize, let alone mobility, and the cost is also very high. Contents of the invention [0003] In order to overcome the shortcomings of the existing circuit breaker simulation demonstration system, whic...
Claims
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IPC IPC(8): G09B23/18
Inventor 杨斌王兴仙李巍
Owner ZHEJIANG TENGEN ELECTRIC