RTU wireless communication fault indicator of cable type data transmission easily

Data Transmission Unit function is to receive wireless signal from panel indicator then to demodulate and decode,then send the signal to central station by GSM or GPRS.

Working principle:

Date Transmission Unit is to transmit the fault signal from panel indicator which is transmitted from short-circuit fault indicator and earth fault indicator through optical fiber. DTU receive data wireless from panel indicator ,then send the fault signals to master station by GSM or GPRS after analysis and processing to realize fault detection and fault location of power distribution network .

Main characteristics:

1.Wireless receive:receive fault point information from panel indicator through wireless

2.GSM OR GPRS send: send status and fault information to master station,requires confirm detailed requirement before order.

3.Main supply: powered by two roads of powered CT, back up used each other, if primary line current is not less than 10A, back-up power will not be consumed; or PT powered.

4.Back-up power supply:equipped with free-maintenance 5AH lithium battery. Under condition of no power for main power source, it can keep device working 5-8 years and fault information not lost and no need to complement energy.

Function

1.wireless receive: receive fault point signal from panel indicator by wireless

2.GSM or GPRS transmission: send status information, fault information to master station by GSM or GPRS.

3. Power supply way:PT supply or two road of CT supply, if primary current is above 10A,it can work normally.

4. communication protocol:IEC870－5－101 or IEC870－5－104

5. Remotely upgrade:device can easily be upgraded remotely.

Technical parameters

There is type test report for it, test items as following:

Beijing TIANYIHONGDA Science & Technology Development Co., LTD is located in Lize Business Circle area, a prosperous business area in the center of Beijing City, China. is a high and advanced technology enterprise which is professionally engaged in research, production, sales and service of advanced smart monitoring technology products. We have great professional research team and techniques service team with rich working experience in the field of smart monitoring technology, cooperating with many famous Universities and Science Research Institutions on Smart Grid Automation, Smart Sensors and Wireless Communication and developing widespread market.

Our company has a great achievement in the development of Smart Grid, we by ourselves researched out the whole set of power distribution automation products such as DTU, FTU, RTU and so on. The central products and technology obtain national patents and certificate issued by relevant authoritative institution. The Fault Passage Indicators and Fault Location DTU systems has been stably running nearly 820,000 sets in the big city and middle city in domestic and overseas Market. accumulation of rich techniques and practical running experience on sites, these devices not only applied in the areas of national state grid, railway, petroleum, chemistry, coal, but also widespread used in the overseas countries such as India, Vietnam, Sri Lanka, Indonesian, Iran, Brazil, South Korea, South American and so on.

Meanwhile, the company is also successfully developing products to new monitoring fields, researched out Meteorological Monitoring Equipment, Environmental Monitoring Equipment and Video Monitoring Equipment and so on. All the products got the authoritative type test report and fully carry out and implement ISO9001 Quality Management System, these equipments have been successfully sold to domestic and overseas markets and approved by our clients.

Solar Power system with remote monitoring function is also successfully entering into market and get approval by the users. we have succefully finished many projects including commercial,residential applications for on-grid and off-grid applications such as 40KW substation, 60KW substation, residential ,countryside etc.

“ Sincerity is fundamental, clients is the first” & “strict quality control, earnest service supply” are our company’s management ideal, we sincerely invite all the cooperation partners working together to supply good qualities of products and service to domestic and overseas clients, devote ourselves to electrical smart grid development and monitoring technology development.