CN2785214Y

CN2785214Y - Intelligent lower voltage switch cabinet

Info

Publication number: CN2785214Y
Application number: CN 200420090025
Authority: CN
Inventors: 王叔平; 唐梅林; 管建荣; 徐旭强
Original assignee: SHANGHAI HUAJIAN SWITCH CO Ltd
Current assignee: SHANGHAI HUAJIAN SWITCH CO Ltd
Priority date: 2004-09-14
Filing date: 2004-09-14
Publication date: 2006-05-31
Anticipated expiration: 2014-09-14

Abstract

The utility model discloses an intelligent lower voltage switch cabinet, which comprises a control cabinet, a breaker, a transformer, an intelligent protector of a motor, a contactor, a primary connector, a secondary connector, a terminal row and a connecting conducting wire, wherein the control cabinet, the breaker, the transformer, the intelligent protector of a motor, the contactor, the primary connector, the secondary connector, the terminal row and the connecting conducting wire are combined by a primary connecting order and a secondary control order. The utility model integrates the functions of protection, monitoring, control and communication and distributes wires from two groups of secondary inserters. Therefore, a new structure combining fixed separation and drawers is formed to reduce the produced interference to a signal circuit, and the utility model has the advantage of more reasonable structural configuration. The safety of the utility model is improved, the utility model is a basic product of a new generation of the automatic control of an electrical system, therefore the technical performance index of the switch cabinet reaches or exceeds national standards.

Description

The intelligent type low-voltage switch cubicle

One, technical field

The utility model intelligent type low-voltage switch cubicle, what relate to is power transmission and distribution design and manufacturing technology field, is applied to the power supplying and distributing equipment of industrial enterprise.

Two, background technology

At present, employed low-tension switch cabinet controller switching equipment in all trades and professions at home, basically be the outfit apportion control element commonly used of various series, the low-tension switch cabinet of instrument and electric elements, and along with the perfection day by day and the demand of intellectuality collection control techniques, generally exactly intelligent element is directly installed on original cabinet type, mix use with control element commonly used, instrument, and do not have tangible improvement with regard to the overall co-ordination aspect of performance of agent structure, operation and maintenance is comparatively complicated, easily cause misoperation, electromagnetism disturbs very big to the weak electric signal electric wire simultaneously.

The low-tension switch cabinet of import is though some is intelligent, because of mostly designing according to the intelligent element of its national situation and exploitation use already, so certain limitation is also arranged.

Three, summary of the invention

The purpose of the utility model intelligent type low-voltage switch cubicle is in order to overcome the existing defective of the serial low-tension switch cabinet of above-mentioned tradition commonly used, and designing a kind of serves as the main low-tension switch cabinet that conventional instrument carries out reasonable disposition that substitutes with intelligent element.Its technology is: comprise control cubicle, circuit breaker, instrument transformer, intellectual motor protection, contactor, a connector, the secondary connector, terminal board, connect lead in interior structure, it is characterized in that: be main bus bar by once patching to be linked in sequence, a connector, circuit breaker, instrument transformer, intellectual motor protection, contactor, a connector, secondary control sequence is connected to contactor, intellectual motor protection, instrument transformer, circuit breaker, the secondary connector, master switch connects sum total intellective protector external inspecting device, is provided with all kinds of weak electric signals and the special-purpose full-shield passage of order wire of a trapezoid cross section in the preceding bottom of cabinet; In the upper back of cabinet, be provided with and use bus clip, the installation cross section is that the special-shaped red copper of C shape is arranged as main bus bar; Switch cubicle adopts drawer structure, right side and right back two group secondary connector, and be provided with two cable tray in the drawer, low-voltage control circuit and detection, signal of communication circuit are separated cabling; The intelligent element that is provided with in the intellectual motor protection can be LM-30/31, LM-10, LCM-100/120, LCM-500, LL-50 and HD-A52.The positive effect of implementing after this technology is: adopt the integral intelligent element; the function of collection protection, monitoring, control, communication; from two groups of secondary plug-in unit cablings; thereby form a kind of novel fixedly separation and drawer structure combining; reduced the interference that signal line is produced, its topology layout is more reasonable, has improved fail safe; be the electric power system basic product of new generation of control automatically, make the technical performance index of switch cubicle meet or exceed national standard.

Four, description of drawings

Fig. 1 is the structured flowchart of the utility model intelligent type low-voltage switch cubicle.

Wherein, 1-power line, 2-master switch, 3-main bus bar, plug-in unit of 4-, 5-circuit breaker, 6-instrument transformer, 6-1-contactor, 7-intellectual motor protection, 7-1-secondary connector, 8-sum total intellective protector, 9-motor, 10-watch-dog, 11-display;

Five, embodiment

Is that example is further described the utility model below in conjunction with accompanying drawing with HJILS intelligent type low-voltage switch cubicle:

See accompanying drawing 1,380V power line (1) enters low-tension switch cabinet, is connected to master switch (2), main bus bar (3), a plug-in unit (4), circuit breaker (5), instrument transformer (6), intellectual motor protection (7), motor (9) by configuration sequence; Sum total intellective protector (8) connects master switch (2) and watch-dog (10), and the other end of watch-dog (10) connects display (11); Secondary control sequence is connected to contactor (6-1), intelligent motor controller (7-1), instrument transformer (6), circuit breaker (5), secondary connector (7-1), intelligent motor controller (7) is connected with instrument transformer (6), circuit breaker (5), and intelligent motor controller (7) other end connects watch-dog (10); Connect intelligent motor controller (7) by a plug-in unit (4) between a plug-in unit (4), the circuit breaker (5).

See accompanying drawing 1, with manual or automatic remote control mode master switch (2) the input 380V power supply that closes, electric current starts watch-dog (10) and display (11), simultaneously by sum total intellective protector (8), electric current is by a main bus bar (3) and a plug-in unit (4), the circuit breaker (5) that closes, electric current passes instrument transformer (6) by circuit breaker (5), starts intelligent protector for motor (7), the motor contactor (6-1) that closes, starter motor (9) runs well; When main busbar (3) breaks down, master switch (2) automatic brake separating shows the failure cause of circuit breaker (5) by watch-dog (10); When motor (9) transships or breaks down, control circuit breaker (5) automatically by intelligent protector for motor (7) and make contactor (6-1) separating brake, cut off the power supply that leads to motor (9), motor (9) quits work; The situation that motor (9) stops to be shown by display (11) by intelligent protector for motor (7) input monitoring device (10).

Claims

1; the utility model intelligent type low-voltage switch cubicle; comprise control cubicle; circuit breaker (5); instrument transformer (6); intellectual motor protection (7); contactor (6-1); a connector (4); secondary connector (7-1); terminal board; connect lead in interior structure; it is characterized in that: be main bus bar (3) by once patching to be linked in sequence; a connector (4); circuit breaker (5); instrument transformer (6); intellectual motor protection (7); contactor (6-1); a connector (4); secondary control sequence is connected to contactor (6-1); intellectual motor protection (7); instrument transformer (6); circuit breaker (5); secondary connector (7-1), master switch (2) connect sum total intellective protector (8) external inspecting device (10).

2, according to the described intelligent type low-voltage switch cubicle of claim 1, it is characterized in that: all kinds of weak electric signals and the special-purpose full-shield passage of order wire that are provided with a trapezoid cross section in the preceding bottom of cabinet; In the upper back of cabinet, be provided with and use bus clip, the installation cross section is that the special-shaped red copper of C shape is arranged as main bus bar (3).

3, according to the described intelligent type low-voltage switch cubicle of claim 1, it is characterized in that: switch cubicle adopts drawer structure, right side and right back two group secondary connector (7-1), and be provided with two cable tray in the drawer, low-voltage control circuit and detection, signal of communication circuit cabling are separated.

4, according to the described intelligent type low-voltage switch cubicle of claim 1, it is characterized in that: the intelligent element that is provided with in the intellectual motor protection (7) can be LM-30/31, LM-10, LCM-100/120, LCM-500, LL-50 and HD-A52.