CN201360139Y

CN201360139Y - Group-type microcomputer motor protective monitoring device

Info

Publication number: CN201360139Y
Application number: CNU2009200671443U
Authority: CN
Inventors: 张峰; 戴顺辉; 衡昌胜
Original assignee: SHANGHAI HUAJIAN ELECTRICAL EQUIPMENT CO Ltd
Current assignee: SHANGHAI HUAJIAN ELECTRICAL EQUIPMENT CO Ltd
Priority date: 2009-01-19
Filing date: 2009-01-19
Publication date: 2009-12-09
Anticipated expiration: 2019-01-19

Abstract

The utility model discloses a group-type microcomputer motor protective device which takes a management module as the center, is connected with a basic module, a universal module, a communicate module and a display module through a CAN (controller area network) bus, realizes complete machine connection through interfaces arranged on all the components respectively, allocates the functions of protection, measurement and management, can effectively record starting, stopping, fault, state quantity, running time of the motor and operation times of the motor, and can perform multiple functions of detecting and displaying quick break, thermal overload, overcurrents, rotation stop, imbalance, phase failure, single phase earthing, negative phase sequence, overtime of starting, limit of the starting number, undercurrents, overflow protection and failure of a contactor. The integral structure of the device is optimized, so that the volume is reduced and the mounting and debugging is simple and convenient, investment cost and sources are saved, and the stability of the functions and the system of the whole device is improved.

Description

The group-wise microcomputer motor protective monitoring device

One, technical field

The utility model relates to a kind of microcomputer motor protective monitoring technique field, particularly microcomputer low-tension motor protection monitoring group-wise technical field.

Two, background technology

General microcomputer motor protective device supervising device is protector mode of a motor circuit at present; the several loops of cupboard are with regard to several protectors; and each protector all disposes identical or similar function; will repeat with respect to some function of cupboard; all to independently gather computing as each protectors such as voltage acquisition, time module, display modules; and actual signal is identical, just causes unnecessary repetition, promptly wastes resource and has brought potential safety hazard to system again.

Three, summary of the invention

The purpose of this utility model is that some function setting of a plurality of loops repeats in the switch cubicle in order to overcome, and promptly wastes resource and has brought potential safety hazard to system again, has designed group-wise microcomputer motor protective device.Its technical scheme that adopts is: the structure that comprises administration module, basic module, utility module, communication module, display module and inner CAN bus, it is characterized in that: be the center with the administration module, connect basic module by the CAN bus, utility module, communication module, display module realizes that by being provided with interface separately complete machine connects.Basic module has comprised the three-phase current input, quantity of state input, control output, be provided with can independent operating basic module at 1-16.The positive effect of implementing after this technology is: be easy to installation and maintenance, Installation and Debugging are simple and convenient; Dispose defencive function; measurement function and management function; can effectively write down activated; stop record; failure logging; the quantity of state record; motor running time; the motor operation number of times; quick-break is arranged; thermal overload; overcurrent; stall; uneven; the phase failure; single-phase earthing; negative-phase sequence; start overtime; the number of starts restriction; undercurrent; overflow protection; the multiple function of the detection of contactor fault and demonstration; optimized overall structure; it is little to reach volume; function is many; Installation and Debugging are simple and convenient; save cost of investment and resource, strengthened the function and the stability of a system of whole cupboard.

Four, description of drawings

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

Wherein: 1-basic module, 2-administration module, 3-utility module, 4-communication module, 5-display module;

Five, embodiment

Below in conjunction with accompanying drawing, the utility model is further described:

Seeing accompanying drawing 1, is the center with administration module (2), connects basic module (1), utility module (3), communication module (4), display module (5) by the CAN bus; Basic module (1) has comprised the three-phase current input, quantity of state input, control output, and the basic module of setting (1) is at 10,1 of each loop configuration, independent operating.

See accompanying drawing 1; whole device is provided with 10 independent operating basic modules (1); relatively independent detection and control have been accomplished in each loop; has absolute address; pass to administration module (2) respectively; administration module (2) has been concentrated common information; the communication data of integrating; simultaneously, public information in the switch cubicle that utility module (3) is gathered is by internal bus and administration module (2) exchange message; voltage measurement is provided; time tag; the busbar temperature; make display module (5) that the man-machine interface of optimization is provided, can inquire about all measurement data; record data; management data, and can inquire about and adjust various protection definite values and device parameter.

Detect each loop motor operation information by communication module (4) transmission, read public information and the parameter tuning information that needs from administration module (2), to different circuit separately motor detect and control, public information in the switch cubicle that utility module (3) is gathered, display module (5) adopts large scale display, make things convenient for the user to check each loop motor operation information, dispose each loop motor different parameters, full detail is by exchanging to administration module (2).

As required, communication module (4) requires to select matching module for use according to different system, can finish system's remote measuring and controlling, comprises CAN bus, Modbus, Profibus, DeviceNet, Industrial Ethernet, 61850 etc.

Claims

1. group-wise microcomputer motor protective monitoring device; the structure that comprises administration module (2), basic module (1), utility module (3), communication module (4), display module (5) and inner CAN bus; it is characterized in that: with administration module (2) is the center; connect basic module (1) by the CAN bus; utility module (3); communication module (4), display module (5) realizes that by being provided with interface separately complete machine connects.

2. group-wise microcomputer motor protective monitoring device according to claim 1 is characterized in that: basic module has comprised the three-phase current input, quantity of state input, control output.

3. group-wise microcomputer motor protective monitoring device according to claim 1 is characterized in that: be provided with can independent operating basic module (1) at 1-16.