CN203406601U

CN203406601U - Motor oriented operation control cabinet controlled by phase sequence relay

Info

Publication number: CN203406601U
Application number: CN201320426483.2U
Authority: CN
Inventors: 胡东阳; 谢安德
Original assignee: Hengyang City Co Qidong County Branch Co Of Tobacco In Hunan Co
Current assignee: Hengyang City Co Qidong County Branch Co Of Tobacco In Hunan Co
Priority date: 2013-07-18
Filing date: 2013-07-18
Publication date: 2014-01-22
Anticipated expiration: 2023-07-18

Abstract

Provided is a motor oriented operation control cabinet controlled by a phase sequence relay. The cabinet comprises a cabinet body, characterized in that a control circuit thereof is formed by the phase sequence relay, a contactor, and buttons. Using motor positive and negative rotation principles, no matter how phase of a three-phase four-wire power source changes, the cabinet can control a motor to operate on a same oriented direction all the time, thereby ensuring normal processes of production. The cabinet is simple in structure, and safe and convenient in use.

Description

The motor direction operation control cabinet that adopts phase sequence relay to control

Technical field

The utility model relates to a kind of motor control assembly, particularly a kind of motor direction operation control cabinet that adopts phase sequence relay to control.

Background technology

For not allowing to change as the blower fan turning of close-packed tobacco barn, but sometimes unconsciously power phase changed unavoidably and motor change is turned to, having a strong impact on the baking quality of tobacco leaf.

Summary of the invention

The purpose of this utility model is in order to solve the problems of the technologies described above, and a kind of motor direction operation control cabinet that does not change the employing phase sequence relay control of break-in running because of power phase is provided.

The motor direction operation control cabinet that employing phase sequence relay of the present utility model is controlled comprises casing, it is characterized in that its control circuit is by phase sequence relay KS, contactor KM1, contactor KM2, start button S2, stop button S1, thermal relay KR forms, and wherein S1 one end connects S2, KM1 normally opened contact KM1-1, the parallel branch of KM2 normally opened contact KM2-1, the parallel branch other end also meets 5 of KS, the built-in normally opened contact of 6 pin, KM2 normally-closed contact KM2-2, 7 of the series arm of KM1 coil and KS, the built-in normally-closed contact of 8 pin, KM1 normally-closed contact KM1-2, the series arm of KM2 coil, KM1, the KM2 coil other end also connects KR normally-closed contact KR-1 one end, and the KR-1 other end connects zero-power line N, power supply input triple line A, B, in C, be connected in series successively tri-groups of normally opened contact KM1-3 of KM1, after thermal relay KR coil, connect motor M tri-winding inputs, the power input 1 of KS, 2, 3 pin are inputted triple line A with KM1-3 power supply before respectively, B, C connects, and tri-groups of normally opened contact KM2-3 one end of KM2 connect respectively 1 of KS, 2, 3 pin, the KM2-3 other end connects respectively the power supply input triple line C between KM1-3 and KR coil, B, A, the S1 other end connects 1 pin of KS, and each element is arranged in casing, on panel, and draw each terminals.

The utility model, owing to adopting above design, utilizes motor positive and inverse principle, no matter how three-phase four-wire power phase place changes, all can control motor same direction direction operation all the time, guarantees to produce normally to carry out.Simple in structure, use safety, convenient.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model electrical schematic diagram.

Embodiment

Now illustrated embodiment is made detailed description to the utility model by reference to the accompanying drawings.

As shown in Figure 2, a kind of motor direction operation control cabinet that adopts phase sequence relay to control, comprises casing, and its control circuit is by phase sequence relay KS, contactor KM1, contactor KM2, start button S2, stop button S1, thermal relay KR forms, and wherein S1 one end connects S2, KM1 normally opened contact KM1-1, the parallel branch of KM2 normally opened contact KM2-1, the parallel branch other end also meets 5 of KS, the built-in normally opened contact of 6 pin, KM2 normally-closed contact KM2-2, 7 of the series arm of KM1 coil and KS, the built-in normally-closed contact of 8 pin, KM1 normally-closed contact KM1-2, the series arm of KM2 coil, KM1, the KM2 coil other end also connects KR normally-closed contact KR-1 one end, and the KR-1 other end connects zero-power line N, power supply input triple line A, B, in C, be connected in series successively tri-groups of normally opened contact KM1-3 of KM1, after thermal relay KR coil, connect motor M tri-winding inputs, the power input 1 of KS, 2, 3 pin are inputted triple line A with KM1-3 power supply before respectively, B, C connects, and tri-groups of normally opened contact KM2-3 one end of KM2 connect respectively 1 of KS, 2, 3 pin, the KM2-3 other end connects respectively the power supply input triple line C between KM1-3 and KR coil, B, A, connects 1 pin of KS after S1 other end serial connection fuse FU, each element is arranged in casing, on panel, and draw each terminals.

The operation principle of this direction operation control cabinet is as follows: as shown in Figure 2, during operation, three phase mains closes, when normal by phase sequence relay KS detection three phase mains phase place, the built-in normally opened contact conducting of 5,6 pin of KS, the built-in normally-closed contact of 7,8 pin disconnects, press start button S2, KM1 adhesive, KM2 discharges, the operation of motor M forward; When KS detects three phase mains misphase, the built-in normally opened contact of 5,6 pin of KS disconnects, and the built-in normally-closed contact conducting of 7,8 pin, presses S2, KM2 adhesive, and KM1 discharges, the same forward operation of motor M.

Claims

1. a motor direction operation control cabinet that adopts phase sequence relay to control, comprises casing, it is characterized in that its control circuit is by phase sequence relay KS, contactor KM1, contactor KM2, start button S2, stop button S1, thermal relay KR forms, and wherein S1 one end connects S2, KM1 normally opened contact KM1-1, the parallel branch of KM2 normally opened contact KM2-1, the parallel branch other end also meets 5 of KS, the built-in normally opened contact of 6 pin, KM2 normally-closed contact KM2-2, 7 of the series arm of KM1 coil and KS, the built-in normally-closed contact of 8 pin, KM1 normally-closed contact KM1-2, the series arm of KM2 coil, KM1, the KM2 coil other end also connects KR normally-closed contact KR-1 one end, and the KR-1 other end connects zero-power line N, power supply input triple line A, B, in C, be connected in series successively tri-groups of normally opened contact KM1-3 of KM1, after thermal relay KR coil, connect motor M tri-winding inputs, the power input 1 of KS, 2, 3 pin are inputted triple line A with KM1-3 power supply before respectively, B, C connects, and tri-groups of normally opened contact KM2-3 one end of KM2 connect respectively 1 of KS, 2, 3 pin, the KM2-3 other end connects respectively the power supply input triple line C between KM1-3 and KR coil, B, A, the S1 other end connects 1 pin of KS, and each element is arranged in casing, on panel, and draw each terminals.