CN203480743U

CN203480743U - Relay matrix simulation three-phase current fault apparatus

Info

Publication number: CN203480743U
Application number: CN201320596958.2U
Authority: CN
Inventors: 冯浩
Original assignee: JIANGSU YIBANG POWER TECHNOLOGY Co Ltd
Current assignee: Jiangsu Yibang Power Technology Co ltd
Priority date: 2013-09-26
Filing date: 2013-09-26
Publication date: 2014-03-12
Anticipated expiration: 2023-09-26

Abstract

The utility model provides a relay matrix simulation three-phase current fault apparatus including a microcontroller, a three-phase current source transformer, a relay matrix circuit, a relay driver, a light isolation circuit, and a binding post. the microcontroller is successively connected with the light isolation circuit, the relay driver, and the relay matrix circuit, and the relay matrix circuit and the three-phase current source transformer are connected with the binding post. According to the utility model, the microcontroller controls the opening and closing of relay matrix, completes the phase switching of fault current, and simulates various on-site phase sequence upside-down phenomena.

Description

A kind of relay matrix simulation three-phase current failed equipment

Technical field

The utility model relates to circuit field, particularly the device of simulation three-phase current fault.

Background technology

Along with the propelling day by day of power information acquisition system construction with carry out comprehensively, type and the quantity of collection in worksite terminal and table meter also constantly increase, and in construction and operation maintenance, there will be the problem of a large amount of different phenomenons and fault to solve fast and accurately.

On-the-spot common table is in respect of three-phase four-wire system 220V multifunctional meter, three-phase four-wire system 57.5V(100V) multifunctional meter, three-phase three-wire system 100V multifunctional meter.The fault type of electric current line wrong line has three-phase current negative phase sequence (CBA), the anti-A of three-phase current, B, C phase, three-phase current short circuit, the short circuit of A phase current, the short circuit of B phase current, the short circuit of C phase current, A phase current open circuit, B phase current open circuit, C phase current open circuit.In simulated field table meter fault, the analogue means of electric current line wrong line fault is fairly simple, can only simulate one to two kind of different failure condition, is unfavorable for the requirement of practitioner's know-how and the training of professional skill at present.

Utility model content

For above-mentioned defect and the problem of prior art, the utility model object is to provide a kind of relay matrix simulation three-phase current failed equipment, simulates multiple common three-phase current failure condition.

In order to achieve the above object, the utility model is realized by the following technical solutions:

A kind of relay matrix simulation three-phase current failed equipment, comprise microcontroller, three-phase current source transformer, relay matrix circuit, relay driving, optically coupled isolation circuit and connection terminal, described microcontroller connects optically coupled isolation circuit successively, relay drives and relay matrix circuit, and described relay matrix circuit is all connected connection terminal with three-phase current source transformer.

Further technical scheme, described current relay matrix circuit comprises current open fault control module, the reverse handover module of electric current and current phase control module, described current open fault control module connects the reverse handover module of electric current, current phase control module successively, and described current open fault control module connects connection terminal.

The utility model is by under microprocessor controls, and the operation of relay matrix opening and closing, completes the Phase-switching operation of fault current, the various phase sequence paradoxs of simulated field.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme of the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only an embodiment of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is structural representation of the present utility model.

Fig. 2 is the schematic diagram of the utility model repeat circuit matrix circuit.

Embodiment

Below in conjunction with accompanying drawing of the present utility model, the technical solution of the utility model is clearly and completely described, obviously, described embodiment is only embodiment of the utility model, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.

Shown in Fig. 1, the utility model is a kind of relay matrix simulation three-phase current failed equipment, comprise microcontroller, three-phase current source transformer, relay matrix circuit, relay driving, optically coupled isolation circuit and connection terminal, microcontroller connects optically coupled isolation circuit successively, relay drives and relay matrix circuit, and relay matrix circuit is all connected connection terminal with three-phase current source transformer.Current relay matrix circuit comprises current open fault control module, the reverse handover module of electric current and current phase control module, current open fault control module connects the reverse handover module of electric current, current phase control module successively, and current open fault control module connects connection terminal.

Principle of work of the present utility model is as follows:

Microprocessor controls, for the opening and closing of pilot relay matrix, completes the Phase-switching operation of fault current, the various phase sequence paradoxs of simulated field;

Optically coupled isolation circuit, for isolating input and output circuit, suppresses system noise effectively, eliminates the interference of ground loop;

Relay drives and is used for amplifying drive current, for relay provides enough power;

Relay matrix circuit is for the cut-offfing of specific implementation fault current, direction and Phase-switching.

The utility model comes the cut-offfing of three-phase current in pilot relay matrix, direction and phase place by microcontroller, realizes the phenomenon that the various phase sequences of simulation are put upside down.

The above; it is only embodiment of the present utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; can expect easily changing or replacing, within all should being encompassed in protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion by the described protection domain with claim.

Claims

1. a relay matrix is simulated three-phase current failed equipment, it is characterized in that: comprise microcontroller, three-phase current source transformer, relay matrix circuit, relay driving, optically coupled isolation circuit and connection terminal, described microcontroller connects optically coupled isolation circuit successively, relay drives and relay matrix circuit, and described relay matrix circuit is all connected connection terminal with three-phase current source transformer.

2. relay matrix according to claim 1 is simulated three-phase current failed equipment, it is characterized in that: described current relay matrix circuit comprises current open fault control module, the reverse handover module of electric current and current phase control module, described current open fault control module connects the reverse handover module of electric current, current phase control module successively, and described current open fault control module connects connection terminal.