CN202978242U

CN202978242U - Photoelectric type arc light protection device

Info

Publication number: CN202978242U
Application number: CN 201220722122
Authority: CN
Inventors: 罗军; 陈财建; 李驰
Original assignee: CHENGDU XINGYU ENERGY-SAVING TECHNOLOGY STOCK Co Ltd
Current assignee: Chengdu Xingyu Rongke Power Electronics Co ltd
Priority date: 2012-12-25
Filing date: 2012-12-25
Publication date: 2013-06-05
Anticipated expiration: 2022-12-25

Abstract

The utility model discloses a photoelectric type arc light protection device. The photoelectric type arc light protection device mainly solves the problems that due to the absence of a reliable protection device in a low and medium voltage power supply system, accidents often occur and cause great losses to lives and properties of people in the prior art. The photoelectric type arc light protection device comprises a casing, a power supply module which is arranged inside the casing, a central processing module whose input end is connected with the power supply module, trip relay output module whose input end is connected with the central processing module, a display module, a communication module, a photoelectric conversion module and a measurement module, wherein the display module, the communication module, the photoelectric conversion module and the measurement module are connected with the central processing module. The input end of the display module is further connected with the power supply module. Through the above scheme, the photoelectric type arc light protection device provided by the utility model effectively protects the low and medium voltage power supply system, and has very high practical value and promotion value.

Description

A kind of photoelectric type arc light protecting device

Technical field

The utility model relates to a kind of protective relaying device, specifically, relates to a kind of photoelectric type arc light protecting device.

Background technology

As everyone knows, in electric power system, mostly do not install protection equipment for busbar on the bus of the following electric pressure of 35kV.Although there is not the problem of spread of voltage in the bus of analyzing theoretically the following electric pressure of 35kV, yet, in actual applications because the outlet on middle voltage bus bar is many, frequent operation, the distance of three-phase conductor wire spacing and the earth is closer, endangered by toy, add that equipment quality is poorer than high-tension apparatus, ageing of insulation and mechanical wear easily appear in equipment, and because service conditions is abominable, the reasons such as artificial and operating mistake, the probability of failure of middle voltage bus bar are in fact much high than high pressure, superhigh pressure bus.

In recent years, switchgear in a lot of middle low-pressure systems is seriously burnt, the accident of " baked wheaten cake is operated " of causing thus also happens occasionally, and main transformer also increases year by year due to the accident that damaged by the external short circuit rush of current, improper even can the expansion of these distribution accident treatment developed into the power transmission network accident, causes great economic loss.Therefore, innovation and creation a kind of after fault occurs fast the starting protection measure eliminate fault, effectively guarantee the fail safe of transformer and bus switchgear, making the device that power supply is recovered is that people are required.

The utility model content

The purpose of this utility model is to provide a kind of photoelectric type arc light protecting device; mainly solve exist in prior art owing to there is no reliable protective device in the mesolow electric power system; make accident happen occasionally, people's lives and properties have been caused the problem of heavy losses.

To achieve these goals, the technical solution adopted in the utility model is as follows:

A kind of photoelectric type arc light protecting device; comprise shell; also comprise the power module that all is arranged in shell; the tripping relay output module that the central processing module that input is connected with power module and input are connected with central processing module; and the display module that all is connected with central processing module, communication module, photoelectric conversion module, measurement module; wherein, the input of described display module also is connected with power module.

Specifically, described central processing module comprises the DSP central processing unit, the programmable logic controller (PLC), memory, A/D converter, watchdog circuit and the serial port circuit that all are connected with this DSP central processing unit, described display module, communication module, photoelectric conversion module, measurement module, tripping relay output module all are connected with the DSP central processing unit.

Further, described measurement module is current measurement module.

As preferably, described shell is 2U half-breadth 19 " the added cabinet of standard, and also be provided with earth point on cabinet; Described DSP central processing unit adopts the TMS320C5416-160 chip as process chip; Described display module adopts the STC89C58 chip as display chip.

Compared with prior art, the utlity model has following beneficial effect:

(1) by using the utility model, can effectively avoid switchgear because of the accident generation of the multiaspect switch cubicle " baked wheaten cake is operated " that can not in time excise arc fault and cause, effectively guaranteed user's the security of the lives and property.

(2) the utility model can effectively avoid main transformer because suffering for a long time the short-circuit current rush that arc fault causes to be subject to great damage, by when fault occurs, it being protected in time, thereby effectively reduces economic loss.

(3) the utility model also is connected with display module, can be directly after failure removal checks from this display module and the arc light position in time carries out malfunction elimination thereby be convenient to the user, uses very convenient.

(4) the utility model is after the switch cubicle arc fault occurs; can gather light signal and then eliminate fast arc fault by photoelectric conversion module; power supply is recovered; greatly improved Anti-jamming of signal; reduced property loss; can be widely used in the middle voltage bus bar in the facilities such as power plant, transformer station, distribution system is protected realistic demand.

Description of drawings

Fig. 1 is system block diagram of the present utility model.

Fig. 2 is the system block diagram of central processing module in the utility model.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples, and execution mode of the present utility model includes but not limited to the following example.

Embodiment

for solve exist in prior art owing to there is no reliable protective device in the mesolow electric power system, make accident happen occasionally, people's lives and properties have been caused the problem of heavy losses, as shown in Figure 1, the utility model discloses a kind of photoelectric type arc light protecting device, comprise shell, power module, central processing module, the tripping relay output module, display module, communication module, photoelectric conversion module, measurement module, wherein, each module all is arranged in shell, as shown in Figure 2, central processing module comprises the DSP central processing unit, the programmable logic controller (PLC) that all is connected with the DSP central processing unit, memory, A/D converter, watchdog circuit and serial port circuit, described power module, the tripping relay output module, display module, communication module, photoelectric conversion module, measurement module all is connected with the DSP central processing unit, and the input of display module also is connected with power module.In the utility model, adopt current measurement module as measurement module.

In the utility model, shell adopts 2U, half-breadth 19 " the added cabinet of standard, this cabinet can be arranged on 19 easily, and " on rack, the fail safe in order to ensure in using also is provided with reliable earth point on this cabinet; Power module is comprised of power management chip and power-switching circuit, is the working power of 90～300VDC or 175～264VAC in order to voltage to be provided.

As preferably, the DSP central processing unit adopts the TMS320C5416-160 chip as process chip; Display module adopts the STC89C58 chip as display chip; Programmable logic controller (PLC) adopts XC95288 as control chip; Watchdog circuit adopts the DS1286 chip; Serial port circuit adopts the SC16C554 chip; A/D converter adopts the ADS7864 chip; Memory module adopts M27C1024 as storage chip.

Display chip STC89C58 one end is connected with power module, and the other end is connected with the DSP central processing element, and both real-time communications can show each road current value and illuminance value on display module in real time.

The DSP central processing unit is the core devices of this photoelectric type arc light protecting device, and it is responsible for the signal of photoelectric conversion module and current measurement module transmission is carried out logical operation, and outputs results to the tripping relay output module and carry out circuit protection; Photoelectric conversion module is converted to 12 road signals of telecommunication with 12 road light signals, and the signal after changing transfers to central processing unit and processes; Current measurement module is sampled 6 road current signals, and transmits it to central processing unit and process; The tripping relay output module often leaves the tripping operation exit relay according to what the associative operation closed pair of central processing unit and programmable logic controller (PLC) was answered, realizes the protection to circuit.

In the utility model, each module, device and circuit are prior art, just more do not speak more bright at this.

According to above-described embodiment, just can realize well the utility model.

Claims

1. photoelectric type arc light protecting device; comprise shell; it is characterized in that; also comprise the power module that all is arranged in shell; the tripping relay output module that the central processing module that input is connected with power module and input are connected with central processing module; and the display module that all is connected with central processing module, communication module, photoelectric conversion module, measurement module, wherein, the input of described display module also is connected with power module.

2. a kind of photoelectric type arc light protecting device according to claim 1; it is characterized in that; described central processing module comprises the DSP central processing unit; the programmable logic controller (PLC), memory, A/D converter, watchdog circuit and the serial port circuit that all are connected with this DSP central processing unit, described display module, communication module, photoelectric conversion module, measurement module, tripping relay output module all are connected with the DSP central processing unit.

3. a kind of photoelectric type arc light protecting device according to claim 2, is characterized in that, described measurement module is current measurement module.

4. a kind of photoelectric type arc light protecting device according to claim 3, is characterized in that, described shell is 2U half-breadth 19 " the added cabinet of standard, and also be provided with earth point on cabinet.

5. a kind of photoelectric type arc light protecting device according to claim 4, is characterized in that, described DSP central processing unit adopts the TMS320C5416-160 chip as process chip.

6. a kind of photoelectric type arc light protecting device according to claim 5, is characterized in that, described display module adopts the STC89C58 chip as display chip.