CN202651796U

CN202651796U - Integrated protection type digital display type delta connected power capacitor dynamic throw switch

Info

Publication number: CN202651796U
Application number: CN2012201892500U
Authority: CN
Inventors: 廖子力; 王勇
Original assignee: CHONGQING MSIKE MECHANICAL ELECTRICITY Co Ltd
Current assignee: CHONGQING MSIKE MECHANICAL ELECTRICITY Co Ltd
Priority date: 2012-04-28
Filing date: 2012-04-28
Publication date: 2013-01-02
Anticipated expiration: 2022-04-28

Abstract

The utility model discloses a switch unit provided with external integrated failure alarm device and display meter connnection points, and specifically discloses an integrated protection type digital display type delta connected power capacitor dynamic throw switch. The dynamic throw switch comprises a silicon controlled rectifier group which is arranged between the incoming line end and the outgoing line end, a CPU which is integrated with the silicon controlled rectifier group, temperature sensors which are arranged on each silicon controlled rectifier in the silicon controlled rectifier group, a current transformer which is arranged at the A phase and the B phase of three-phase busbars, an external digital display meter, and an external alarm device. The temperature sensors and the current transformer are connected with the signal input ends of the CPU separately. The external digital display meter and the external alarm device are connected with the signal output ends of the CPU separately. According to the utility model, the technical defect that the protection operation is lack of precision and reliability in the prior art is overcome, and a dynamic throw switch which is used for acquiring circuit operation data and capable of performing the failure alarm operation and the data display operation is provided.

Description

The dynamic fling-cut switch of integrated protection type digital display type delta connection electric capacitor

Technical field

The utility model belongs to the execution appliance component in the idle passive filtering compensation of low-voltage power field, and external resultant fault is reported to the police, the switch element of Displaying Meter contact.

Background technology

At present, in the dynamic-filter reactive compensation technology, all single operating loop is not carried out effective integrated protection, the demonstration of loop working capacity, fault shows or reports to the police.The electic protection of existing compensation circuit is implemented by circuit breaker or fuse, and protection lacks tractability and reliability, and running status or the failure cause that more can not intuitively understand each loop reach reliability service.

The utility model content

Technical problem to be solved in the utility model provide a kind of can the acquisition circuit service data, and can carry out the dynamic fling-cut switch that fault alarm and data show.

In order to solve the problems of the technologies described above, the utility model provides following technical scheme:

The dynamic fling-cut switch of integrated protection type digital display type delta connection electric capacitor, described dynamic fling-cut switch is located between three-phase bus and the delta connection capacitor group, comprise the end of incoming cables, the leading-out terminal that is connected with delta connection capacitor group that are connected with three-phase bus, be located at the Group of Silicon Controlled Rectifier between end of incoming cables and the leading-out terminal, also comprise with the CPU of the integrated setting of described Group of Silicon Controlled Rectifier, be located at the temperature sensor on each controllable silicon in the Group of Silicon Controlled Rectifier, be located at the current transformer that A in the three-phase bus, B get along, digital explicit table and the alarm of external usefulness; Wherein temperature sensor, current transformer link to each other with the signal input part of CPU respectively, and the explicit table of external number, alarm link to each other with the signal output part of CPU respectively.

The technical program compared with prior art has following beneficial effect:

1, in dynamic fling-cut switch, arrange with the CPU of the integrated setting of described Group of Silicon Controlled Rectifier, be convenient to understand the service data in each loop; Integrated setting can be adopted conventional means, as is installed on the same pcb board; Can overcurrent instrument transformer, temperature sensor the service data of decorrelation and digital explicit table and the alarm by external usefulness, make the staff can understand intuitively relevant information and in regulating and control.

Description of drawings

Fig. 1 is circuit structure schematic diagram of the present utility model.

Embodiment

Below in conjunction with drawings and Examples technical solution of the present invention is further specified:

As shown in Figure 1, the dynamic fling-cut switch of integrated protection type digital display type delta connection electric capacitor, described dynamic fling-cut switch is located between three-phase bus and the delta connection capacitor group, comprise the end of incoming cables L1～L3 that is connected with three-phase bus, leading-out terminal L4～the L6 that is connected with delta connection capacitor group, be located at the Group of Silicon Controlled Rectifier between end of incoming cables L1～L3 and the leading-out terminal L4～L6, also comprise the CPU with the integrated setting of described Group of Silicon Controlled Rectifier, be located at the temperature sensor 3 on each controllable silicon 2 in the Group of Silicon Controlled Rectifier, be located at A in the three-phase bus, the current transformer 1 that B gets along, digital explicit table and the alarm of external usefulness; Wherein temperature sensor 3, current transformer 1 link to each other with the signal input part of CPU respectively, and the explicit table of external number, alarm link to each other with the signal output part of CPU respectively.

Described CPU is provided with abundant interface, can carry out the cutting on the function, as set up the voltage acquisition port, switch fan control port etc. of dynamic fling-cut switch, certainly need to set up corresponding external devices (such as the voltage acquisition line that is electrically connected with bus, for the electrical control electric fan of switch).

Above-described only is preferred implementation of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from the utility model structure; can also make some distortion and improvement; these also should be considered as protection range of the present utility model, and these can not affect effect and practical applicability that the utility model is implemented.

Claims

1. the dynamic fling-cut switch of integrated protection type digital display type delta connection electric capacitor, described dynamic fling-cut switch is located between three-phase bus and the delta connection capacitor group, comprise the end of incoming cables, the leading-out terminal that is connected with delta connection capacitor group that are connected with three-phase bus, be located at the Group of Silicon Controlled Rectifier between end of incoming cables and the leading-out terminal, it is characterized in that: also comprise with the CPU of the integrated setting of described Group of Silicon Controlled Rectifier, be located at the temperature sensor on each controllable silicon in the Group of Silicon Controlled Rectifier, be located at the current transformer that A in the three-phase bus, B get along, digital explicit table and the alarm of external usefulness; Wherein temperature sensor, current transformer link to each other with the signal input part of CPU respectively, and the explicit table of external number, alarm link to each other with the signal output part of CPU respectively.