CN201966574U

CN201966574U - Intelligent electric leakage controller with three-section protection function

Info

Publication number: CN201966574U
Application number: CN2011200898295U
Authority: CN
Inventors: 姚相东
Original assignee: SUZHOU INDUSTRIAL PARK FEIER INTELLIGENT ELECTRICAL APPARATUS Co Ltd
Current assignee: Jiangsu Feal Electrical Appliances Co., Ltd.
Priority date: 2011-03-30
Filing date: 2011-03-30
Publication date: 2011-09-07
Anticipated expiration: 2021-03-30

Abstract

The utility model relates to an intelligent electric leakage controller with a three-section protection function. The electric leakage controller comprises a current transformer, an amplification filter circuit, a main controller, a tripping driver module and a magnetic flux converter, wherein the current transformer is connected with the amplification filter circuit; the amplification filter circuit is connected with the main controller; the main controller is in control connection with the tripping driver module; and the tripping driver module is in drive connection with the magnetic flux converter. The intelligent electric leakage controller provided by the utility model has the benefit that only a circuit breaker in the technical scheme can realize functions such as electric leakage protection, overload protection and short circuit protection, to replace two circuit breakers respectively with the functions of electric leakage protection, overcurrent protection and short circuit protection during the network formation of a low-voltage network.

Description

The intelligent leakaging controller of band three-stage protection function

Technical field

The utility model relates to leakaging controller, particularly relates to the intelligent leakaging controller of being with three-stage protection function.

Background technology

Earth leakage protective is an important resist technology in the low pressure electricity protection, is widely used in the low voltage electric network as the residual current circuit breaker of one of its carrier, in case the accident of leak-stopping electricity fire and loss of life or personal injury takes place.

Existing intelligent leakaging controller does not have overload long delay, the protection of short circuit short time delay, and short circuit is instantaneous to be to protect by thermo magnetic trip release.Thermo magnetic trip release comprises heat dropout, two functions of electromagnetic trip, and it is to be out of shape by electric current time-delay heating to promote the dropout transmission mechanism that heat is threaded off; It is to drive by the instantaneous promotion armature of the short circuit current of solenoid to thread off that magnetic is threaded off.And the short circuit instantaneous protection sensitivity of thermo magnetic trip release low, be difficult for adjusting.

Summary of the invention

The purpose of this utility model is to be to provide a kind of intelligent leakaging controller with three-stage protection function, problem such as the sensitivity that can solve prior art is low, be difficult for adjusting.

The technical solution of the utility model: the intelligent leakaging controller of band three-stage protection function; it is characterized in that; this leakaging controller comprises current transformer, amplification filtering circuit, master controller, dropout driver module, magnetic flow convertor; described current transformer is connected with the amplification filtering circuit; described amplification filtering circuit is connected with master controller; described master controller and dropout driver module control connection, described dropout driver module drive with magnetic flow convertor and are connected.

Described master controller comprises the sub-control module of overload long delay, the sub-control module of short circuit short time delay, the instantaneous sub-control module of short circuit, and the sub-control module of described overload long delay, the sub-control module of short circuit short time delay, the instantaneous sub-control module of short circuit are connected to each other.

The beneficial effect that the utlity model has: in low voltage electric network networking process; realize that again overload protection and short-circuit protection function must select 1 circuit breaker with creepage protection function if should realize earth leakage protective; also need 1 circuit breaker, and the circuit breaker of the technical program only needs 1 just can realize above function with overcurrent, short-circuit protection function.

Description of drawings

Fig. 1 is the schematic diagram of the intelligent leakaging controller of the utility model band three-stage protection function;

Fig. 2 is the submodule schematic diagram of master controller of the intelligent leakaging controller of the utility model band three-stage protection function.

Embodiment

Further understand and understanding for making architectural feature of the present utility model and the effect reached had, cooperate detailed explanation, be described as follows in order to preferred embodiment and accompanying drawing:

Please refer to Fig. 1～Fig. 2; the intelligent leakaging controller of the band three-stage protection function of this embodiment; this leakaging controller comprises current transformer, amplification filtering circuit, master controller, dropout driver module, magnetic flow convertor; described current transformer is connected with the amplification filtering circuit; described amplification filtering circuit is connected with master controller; described master controller and dropout driver module control connection, described dropout driver module drive with magnetic flow convertor and are connected.

The master controller of the intelligent controller of band three-stage protection function adopts single-chip microcomputer; by current transformer the current signal of major loop is become level signal through the amplification filtering circuit conversion; single-chip microcomputer to these signals sample, analog-to-digital conversion, operation result and the preset value of adjusting outputs level signals relatively, these signals drive the dropout of magnetic flow convertor through threading off.

Three section protection comprises: overload long delay, short circuit short time delay, short circuit are instantaneous.Realize its function by the sub-control module of overload long delay, the sub-control module of short circuit short time delay, the instantaneous sub-control module of short circuit respectively.

In sum, it only is preferred embodiment of the present utility model, be not to be used for limiting the scope that the utility model is implemented, all equalizations of doing according to the described shape of the utility model claim scope, structure, feature and spirit change and modify, and all should be included in the claim scope of the present utility model.

Claims

1. be with the intelligent leakaging controller of three-stage protection function; it is characterized in that; this leakaging controller comprises current transformer, amplification filtering circuit, master controller, dropout driver module, magnetic flow convertor; described current transformer is connected with the amplification filtering circuit; described amplification filtering circuit is connected with master controller; described master controller and dropout driver module control connection, described dropout driver module drive with magnetic flow convertor and are connected.

2. the intelligent leakaging controller of band three-stage protection function according to claim 1; it is characterized in that; described master controller comprises the sub-control module of overload long delay, the sub-control module of short circuit short time delay, the instantaneous sub-control module of short circuit, and the sub-control module of described overload long delay, the sub-control module of short circuit short time delay, the instantaneous sub-control module of short circuit are connected to each other.