CN203826917U

CN203826917U - Intelligent type tripper

Info

Publication number: CN203826917U
Application number: CN201420073071.XU
Authority: CN
Inventors: 郑斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-02-20
Filing date: 2014-02-20
Publication date: 2014-09-10
Anticipated expiration: 2024-02-20

Abstract

The utility model discloses an intelligent type tripper comprising a central processing unit 1; the central processing unit 1 is electrically connected with a power source circuit 2, a signal detecting and adjusting unit 3, a power on reset circuit 4, a serial communication interface 5, an input unit 6, a fault state indicating lamp 7 and a breaker trip drive circuit 8; the breaker trip drive circuit 8 is electrically connected with a breaker trip test circuit 9 and a breaker trip execution unit 10; the power source circuit 2 and the signal detecting and adjusting unit 3 are respectively and electrically connected with a current transformer 11. The beneficial effects of the intelligent type tripper are that the intelligent type tripper is stable in performance, quick in reaction and capable of realizing intelligentized control.

Description

A kind of Intelligent tripping device

Technical field

The utility model relates to power supply unit and improves field, particularly a kind of Intelligent tripping device.

Background technology

Along with the high speed development of modern society, more and more higher to the stability of power supply-distribution system, reliability, security requirement.Power supply not only will be aspired for stability, and as far as possible can not power-off, if broken down, also requires to identify as early as possible fault category, and it is minimum that power-off area requirement reduces to as far as possible.In order to reach above requirement, also for the stability of protecting network power supply, prevent that other industrial equipments and various electrical equipment from avoiding the damage of the faults such as overload, short circuit and ground connection.Short-circuiting device is the core apparatus in electric power system, extensive use in all kinds of electric power systems and equipment.Core component as circuit breaker, the Main Function of release is collection signal and controls the dropout operation that executive component completes circuit breaker, the performance of release has determined the whether accurate, efficient to the control ability of electric power system of circuit breaker, and then has guaranteed stability and the automaticity of electric power system.

The development of release, has experienced electromagnetic type current-release device, electronic type release, the release based on microprocessor-single-chip microcomputer and has used the intelligent electrical apparatus release of advanced processes chip.

The utility model is based on using under the hardware environment of advanced processes chip, the Intelligent tripping device with embedded OS of exploitation.

Summary of the invention

The purpose of this utility model is in order to address the above problem, and has designed a kind of Intelligent tripping device.

Principle of the present utility model is the signals such as electric current in the release acquisition system circuit of power supply-distribution system Low Voltage Circuit Breaker, voltage, then by the algorithm of setting, calculate the data value needing, CPU by release compares the numerical value calculating and pre-set numerical value again, according to comparative result, drives corresponding action.The protection of realization to faults such as circuit overload, short circuit, ground connection.

Realizing above-mentioned purpose the technical solution of the utility model is, a kind of Intelligent tripping device, comprise CPU 1, CPU 1 is electrically connected with power circuit 2, input adjustment unit 3, electrify restoration circuit 4, serial communication interface 5, input unit 6, malfunction indicator light 7 and dropout drive circuit 8 respectively, and dropout drive circuit 8 is also electrically connected with dropout test circuit 9 and dropout performance element 10 respectively, and power circuit 2 and input adjustment unit 3 are electrically connected with current transformer 11 respectively.

Described input adjustment unit 3 consists of signal acquisition circuit and signal processing circuit two parts.

Described serial communication interface 5 can with host computer or independently communication unit 12 electrical connection.

Described input unit 6 is to consist of button and key circuit two parts of mating with button.

The Intelligent tripping device that utilizes the technical solution of the utility model to make, the processing of data is at a high speed, in real time, reliably; In the technical program, adopt high-speed processor, make the multiple function task of release can be in real time, at a high speed, synchronous carrying out, realize protection, metering, monitoring and control function integration; The technical program is the problem of resolution system Function Extension and product up-gradation also, can be good at meeting the functional diversities of release, makes systemic-function upgrading convenient and be not subject to the restriction of software and hardware resources.

Accompanying drawing explanation

Fig. 1 is the structural representation of Intelligent tripping device described in the utility model;

Fig. 2 is the circuit diagram of power circuit described in the utility model;

Fig. 3 is the circuit diagram of key circuit described in the utility model;

Fig. 4 is the circuit diagram of malfunction indicator light described in the utility model;

Fig. 5 is the circuit diagram of buzz circuit described in the utility model;

Fig. 6 is the circuit diagram of serial communication interface described in the utility model;

Fig. 7 is the circuit diagram of signal acquisition circuit described in the utility model;

Fig. 8 is the circuit diagram of signal processing circuit described in the utility model;

In figure, 1, CPU; 2, power circuit; 3, input adjustment unit; 4, electrify restoration circuit; 5, serial communication circuit; 6, input unit; 7, malfunction indicator light; 8, dropout drive circuit; 9, dropout test circuit; 10, dropout performance element; 11, current transformer; 12, host computer or independently communication unit.

Embodiment

Below in conjunction with accompanying drawing, the utility model is specifically described, if Fig. 1 is the structural representation of Intelligent tripping device described in the utility model, as shown in the figure, a kind of Intelligent tripping device, comprise CPU 1, CPU 1 respectively with power circuit 2, input adjustment unit 3, electrify restoration circuit 4, serial communication interface 5, input unit 6, malfunction indicator light 7 and 8 electrical connections of dropout drive circuit, and dropout drive circuit 8 is also electrically connected with dropout test circuit 9 and dropout performance element 10 respectively, power circuit 2 and input adjustment unit 3 are electrically connected with current transformer 11 respectively.Wherein, described input adjustment unit 3 consists of signal acquisition circuit and signal processing circuit two parts, and as shown in Figure 7, signal processing circuit as shown in Figure 8 for signal acquisition circuit; Described serial communication interface 5 can with host computer or independently communication unit 12 electrical connection, the circuit of serial communication interface is as shown in Figure 6; Described input unit 6 is to consist of button and key circuit two parts of mating with button, and key circuit as shown in Figure 3.As shown in Figure 2, the circuit of malfunction indicator light as shown in Figure 4 for power circuit.

The embodiment of Intelligent tripping device described in the utility model is:

Voltage in system line, current signal convert the accessible analog signal of analog circuit to through instrument transformer, directly send to the A/D module of CPU in intelligent electrical apparatus release after collection, filtering and the shaping of input adjustment unit.CPU in intelligent electrical apparatus release drives the A/D module of chip, A/D module is to voltage in supply line, gathering of the analog signals such as electric current, process, conversion, become digital signal, then send the application processing function of the logical gate of CPU to, application program is carried out Treatment Analysis by related algorithm to digital signal, then application program contrasts data processed result and default protection value, according to comparing result application program, transferring corresponding driving disconnects, report to the police, the actions such as state indication, relevant I/O equipment input and output can be directly controlled in these drivings.The directly action of control relay after amplifying of the output signal of I/O equipment, makes relay send various protection actions or actuation of an alarm, and actuation of an alarm completes by buzz circuit, as shown in Figure 5.The button that the protection values such as various default electric currents, voltage can be passed through input unit in advance arranges and is kept in the internal memory of CPU.It is default in system program in advance that preset value also can be divided into several class, and then user can arrange the class of selecting preset value by button.Equipment user in service, also can to preset value, carry out scene as required in addition arranges in real time.In addition, Intelligent tripping device described in the utility model is independent of extraneous intelligent system, when there is the super-large current faults such as ground connection, short circuit, can produce rapidly actuating signal and control circuit breaker execution disconnection action, need long-distance intelligent system to control with traditional release to compare, to there is being swift in motion, to react the advantages such as fast.

Early stage release only has current protection and tripping function; and the utility model makes release function more diversified; not only there is current protection and tripping function, and there is the functions such as warning, ground protection, voltage, electric current demonstration in real time, also more stable in performance.

Technique scheme has only embodied the optimal technical scheme of technical solutions of the utility model; those skilled in the art have all embodied principle of the present utility model to some changes that wherein some part may be made, within belonging to protection range of the present utility model.

Claims

1. an Intelligent tripping device, comprise CPU (1), it is characterized in that, CPU (1) respectively with power circuit (2), input adjustment unit (3), electrify restoration circuit (4), serial communication interface (5), input unit (6), malfunction indicator light (7) and dropout drive circuit (8) electrical connection, and dropout drive circuit (8) is also electrically connected with dropout test circuit (9) and dropout performance element (10) respectively, power circuit (2) and input adjustment unit (3) are electrically connected with current transformer (11) respectively.

2. Intelligent tripping device according to claim 1, is characterized in that, described input adjustment unit (3) consists of signal acquisition circuit and signal processing circuit two parts.

3. Intelligent tripping device according to claim 1, is characterized in that, described serial communication interface (5) can with host computer or independently communication unit electric (12) be connected.

4. Intelligent tripping device according to claim 1, is characterized in that, described input unit (6) is to consist of button and key circuit two parts of mating with button.