CN201707433U

CN201707433U - Intelligent controller characteristic test instrument

Info

Publication number: CN201707433U
Application number: CN2010202091801U
Authority: CN
Inventors: 龙继芳; 李果; 程秀光; 张健; 毛巨川; 袁玉鹏; 李浩沛; 凡永华; 张彬
Original assignee: JIANGNAN ELECTROMECHANICAL DESIGN RESEARCH INSTITUTE
Current assignee: JIANGNAN ELECTROMECHANICAL DESIGN RESEARCH INSTITUTE
Priority date: 2010-05-31
Filing date: 2010-05-31
Publication date: 2011-01-12
Anticipated expiration: 2020-05-31

Abstract

The utility model discloses an intelligent controller characteristic test instrument, which belongs to low-voltage electric appliance test equipment. The utility model aims at providing a test instrument which can simulate the change of a hollow mutual inductor of an intelligent controller, can generate three-phase signals with phase difference, can carry out timing on the delay protection, and can test the communication function. The intelligent controller characteristic test instrument consists of a digital-to-analogue conversion circuit (2), a processor circuit (8), four channel signal output circuits (3), a channel signal interface circuit (4), an intelligent controller operation state detection circuit (5), a communication interface circuit (6), an intelligent controller power supply, a control circuit (7) of the intelligent controller power supply, a keyboard circuit (9), a liquid crystal display circuit (10) and a power supply circuit (1). The utility model belongs to ideal equipment for testing the operation characteristic of the intelligent controller used for a universal circuit breaker.

Description

The intelligent controller characteristic tester

Technical field: the utility model relates to a kind of testing apparatus, relates in particular to a kind of testing apparatus of omnipotent breaker with the intelligent controller acting characteristic that be used to test.

Background technology: at present; intelligent controller characteristic tester function is complete inadequately; do not possess following function simultaneously: to the hollow mutual inductor no-load voltage ratio of intelligent controller simulate, produce the band phase differential three-phase signal, intelligent controller protection action delay is carried out timing and the intelligent controller communication function is tested, therefore traditional tester can not satisfy the needs of automatic control.

Summary of the invention: at the above-mentioned defective that exists in the prior art; the utility model aims to provide a kind ofly can simulate and can produce the three-phase signal of being with phase differential to the hollow mutual inductor no-load voltage ratio of intelligent controller, but also the intelligent controller characteristic tester that can carry out timing and communication function is tested delay protection.

To achieve these goals, the utility model is by the following technical solutions: it is by D/A converting circuit, the processor circuit that is connected with this D/A converting circuit and four channel signal output circuits, the channel signal interface circuit that is connected with each channel signal output circuit, the intelligent controller operating state testing circuit, communication interface circuit, intelligent controller power supply and control circuit, keyboard circuit and the LCD circuit that are connected with described processor circuit are to the power circuit formation of above-mentioned each circuit supply; Each channel signal output circuit is connected with processor circuit.

Compared with the prior art, the utility model is owing to adopted technique scheme, so the following advantage of tool:

1) adopt single-phase AC 220V or 24V powered battery, therefore easy to use, portable small and exquisite;

2) liquid crystal display has human-computer interaction function preferably;

3) can simulate the hollow mutual inductor no-load voltage ratio of intelligent controller, can produce the three-phase simulation signal of band phase differential;

4) can protect the action delay time to carry out timing and demonstration to intelligent controller, the stop signal output automatically of intelligent controller action back;

5) can test the intelligent controller communication function, have communication function.

6) have the output of one road power supply, power to intelligent controller.

Description of drawings:

Fig. 1 is a structural principle synoptic diagram of the present utility model;

Fig. 2 is a processor circuit synoptic diagram of the present utility model;

Fig. 3 is a power circuit synoptic diagram of the present utility model;

Fig. 4 is a D/A converting circuit synoptic diagram of the present utility model;

Fig. 5 is a keyboard circuit synoptic diagram of the present utility model;

Fig. 6 is a communication interface circuit synoptic diagram of the present utility model;

Fig. 7 is an intelligent controller operating state testing circuit synoptic diagram of the present utility model;

Fig. 8 is a LCD circuit synoptic diagram of the present utility model;

Fig. 9 is intelligent controller power supply of the present utility model and control circuit synoptic diagram thereof;

Figure 10 is each phase passage signal output apparatus synoptic diagram of the present utility model;

Figure 11 is a channel signal interface circuit synoptic diagram of the present utility model.

Among the figure: power circuit 1 D/A converting circuit, 2 channel signal output circuit 3 channel signal interface circuits, 4 intelligent controller operating state testing circuit 5 communication interface circuits, 6 intelligent controller power supplys and control circuit 7 processor circuits 8 keyboard circuits 9 LCD circuits 10 thereof

Embodiment: the utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:

In Fig. 1～11, A, B, C, N four phase passage signal output apparatus 3 and processor circuit 8 are connected with D/A converting circuit 2, channel signal interface circuit 4 is connected with each channel signal output circuit 3, and intelligent controller operating state testing circuit 5, communication interface circuit 6, intelligent controller power supply and control circuit 7 thereof, keyboard circuit 9, LCD circuit 10 and each phase passage signal output apparatus 3 are connected with processor circuit 8; Power circuit 1 is to above-mentioned each circuit supply.

Principle of work: the current value that each passage is set by keyboard, send into D/A converting circuit 2 after treated device circuit 8 is handled and carry out digital-to-analog conversion, and then, output to the corresponding port of intelligent controller at last by channel signal interface circuit 4 through the required simulating signal of each channel signal output circuit 3 processing generation; A, B, three channel signals of C have 120 ° phase differential.Intelligent controller operating state testing circuit 5 detects the opening and closing state of intelligent controller in real time, does not export simulating signal during separating brake and stops timing.Processor circuit 8 communicates by communication interface circuit 6 and intelligent controller.Utilize the treated device circuit 8 of keyboard circuit can control the output of intelligent controller power supply.Power circuit 1 is given the each several part circuit supply, and liquid crystal display circuit shows various status informations in real time with Chinese.

Claims

1. intelligent controller characteristic tester, it is characterized in that: by D/A converting circuit (2), the processor circuit (8) that is connected with this D/A converting circuit and four channel signal output circuits (3), the channel signal interface circuit (4) that is connected with each channel signal output circuit (3), the intelligent controller operating state testing circuit (5) that is connected with described processor circuit, communication interface circuit (6), intelligent controller power supply and control circuit thereof (7), keyboard circuit (9) and LCD circuit (10) are to power circuit (1) formation of above-mentioned each circuit supply; Each channel signal output circuit (3) is connected with processor circuit (8).