FA Communication Wireless

8/12/2019 FA Communication Wireless

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31.5

.2001

Wireless SecondarySubstation Communication

Feeder Automation


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Radio communicationSATELLINE-3AS AND SATELLINE-3ASdHigh speed UHF radio modem with developed data transfer characteristics

Data speed in the air 19200 bit/s at 25 kHz and 9600 bit/s at 12.5 kHz

RS interface data speed 300...38400 bit/s

LCD display and four push buttons in 3ASd

Error correction (FEC)

Repeater function

Programmable output power 10 mW...1 W

MDS 4710

380 - 512 MHz International Multiple Address

Radio Transceiver 300 to 9,600 bps (4800 ETSI) Data Throughput

7 ms Data Turnaround Time

Low Power Usage--Sleep Mode

5 Watt RF Output

Secondary Substation Communication


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SATEL radio is flexible forbuilding a large

communication network.

A master station is

connected to SCADA or

concentrator

Any radio can work as data

transmitter for one REC

523 and router for other

messages at the same time.

Works with protocols

available in REC 523

Small and compact unit,

easy to fit in DTU cabinet

S

R

R

S

M

R

S

S

REC 523

S

REC 523

REC 523

REC 523

REC 523

REC 523

REC 523

REC 523

REC 523

S

RM

SATEL Radio

Master station

SATEL Radio

Slave station

SATEL Radio

Repeater Station

For more info:

WWW.SATEL.FI

Radio communicationSecondary Substation Communication
http://www.satel.fi/http://www.satel.fi/


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It is not just radio itself

Approvals & frequencies

Mounting assessors

Antennas - radial / directional

Antenna cables, connectors

Configuration

EMC protection

Matching auxiliary equipment

Documentation

Radio Unit

Mount

Antenna

RF Cable

Surge Arrestor

Radio communicationSecondary Substation Communication


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31.5.2

001

PSN

1xDisc.1xFI

KRT2xDisc.

2xFI

UKJ

RTN

SVL3xDisc.

1xFI

Rep.

NVR

Rep.

LTN

KLM2xDisc.

2xFI LTJ2xDisc.

2xFI

Rep.

PHJ

VTP3xDisc.

2xFI

TSK Rep.

NRM1 NRM2

Mast

Disconnector

RMU

Directional aerial

Radial aerial

RepeaterTSK


Radio communicationExample:


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Public

telephone

network

GSM Data communication

Siemens M20 Terminal

Wavecom WMOD2B

Handset for

voice dialing

(optional)RS 232

PSTN

ModemGSMoperator

ExampleGSM-modems:

REC 5xx & DTU 1x1 / DTU 1x5

GSM aerial

GSM

modemSupply

RS 232REC 5xx

MicroSCADA / Network Control Center

Handset for

voice dialing

(optional)



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REC523 dial-up features:

REC523 is able to open the line to control centre (calling procedure)Also with non-spontaneus protocols

Freely programmable ASCII-strings for AT Hayes -commandsPower-up initialisation string

e.g. PIN-code to mobile phone [AT+CPIN=1234]

Watchdog initialisation string [ATZ0&N0E0V0X1]

REC523 is supervising continuously incoming messages

Dial-up strings (1-5 pieces)

5 numbers for control centre(s) [ATD+35812345678]

emergency number e.g. to operators (duty officer) mobile phone

Hang-up string [ATH]

Sophisticated re-dial sequence




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Example:

Gulspng Kraft


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Network own by operator

you are dependent on operator

operator will take care of faultsand maintenance in the network

small investment -> contract

monthly fee / system or units

Typically a large application

higher investment accepted

bigger amount of data required higher communication speed

on-line communication needed

Typically a small application

low investment required

relatively little data required relatively slow speed enough

dial-up communication enough

Own network

you are your own master

you have to take care of faultsand maintenance in the network

higher investment in beginning

no monthly fee

Radio vs. GSM communication

GSM Data communication:Radio communication:



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