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Plot No.12, Software Units Layout, Cyberabad, Hyderabad-500081

Ph.No.+91-040-23114923, 23114928Fax. +91-040-2311492Em

ail: info@icsa-india.com

Website: w

ww.icsa-india.com

Regular measurem

ents of the cathodic protection applied to buried metal pipelines are considered to be the best practice against

external corrosion. Effective CP will help to achieve or exceed the pipeline’s design life. Cathodic Protection (CP) m

easurement is

a laborious process. Manual m

onitoring works out to be costly. M

oreover, problem becom

es known only after its occurrence. The

Wireless SCADA enabled TRANSFORM

ER-RECTIFIER REMOTE M

ONITORING AND CONTROL SYSTEM (TRM

CS) has been designed tocollect CP data autom

atically at the remote field stations and transm

it the same using GSM

/SMS to the centre control (base)

station. It also includes software for displaying, interpreting and generating the report in Real Tim

e.

Cathodic ProtectionW

ith proven track records over many decades, CP is now

well established as an effective m

ethod of protecting metal pipelines. The

preferred technique for high pressure transmission pipeline netw

ork is impressed current cathodic protection in w

hich transformer

rectifier provide the direct current output from a T/R w

hich is capable of protecting long length of pipeline. The other prevailingm

ethod of SACP is useful to protect small length of pipeline.

Impressed current system

s rely on the continuity of the AC supply to the T/R. Moreover, the am

ount of CP current that is appliedis very im

portant. With too little current, the corrosion rate w

ould be unacceptably high. Excessive current can lead to disbandingof the pipe coating and hydrogen em

brittlement. Therefore, m

onitoring and controlling of current requirement is im

perative. The

Wireless SCADA enabled TRM

S is developed for eliminating above problem

s.

The Case for remote m

onitoringIn the event of an AC supply or T/R failure, the CP system

becomes inoperative. The pipeline w

ill be unprotected until the fault isdetected m

anually and rectified. As a result, the CP is ineffective and shortens pipeline life. Therefore, there is a clear rationale forensuring that the CP system

is maintained in a fully functioning and effective state. Rem

ote monitoring is m

ore proactiveoperational approach to corrosion prevention.

Safety is another important factor. M

any T/Rs are located on busy roadsides or at relatively inaccessible locations, posing additionalrisks to lone-w

orking technicians.Working on a T/R exposes staff to tw

o separate earthing systems, so, it is necessary for technicians

to be trained in electrical isolation and to maintain such qualifications.

TR Monitoring and Control System

The system provides continuous status of TR and alarm

notification with respect to pipeline cathodic protection system

s in realtim

e. This low cost, highly reliable netw

ork provides prompt inform

ation of power outages, rectifier problem

s, and pipe-to-soilpotentials. The rem

ote monitoring unit w

hich is interfaced to TR handles the reading of data, monitoring filed points, and

performing user-configured tasks on schedule. The field units are responsible for pushing current status and alarm

information into

a centralized database at preset interval of user configurable. Through its innovative use of the existing cellular telephone network

the system delivers a rare com

bination of high reliability, imm

ediacy of data, at a remarkably low

cost. This transaction based,w

ireless network com

munication requires no w

ireless network construction or technical m

aintenance on the part of the user.

Hardw

are and Software

Wireless-SCADA-TRM

CS comprises of tw

o major stations-Filed and Base. The unit in field station is em

bedded controller basedhardw

are. The field and base stations are interfaced through GSM protocol for w

ireless data transmissions. The hardw

are is developedw

ith advanced microcontroller. Firm

ware is developed in em

bedded C. The system is pow

ered by conventional power. The optional

battery power w

ill be utilized for indicating power outages. All the features w

ould be customized as per the requirem

ent.

The front end software is incorporated in base station in a standard PC w

ith GSM M

ODEM for CP data acquisition, real tim

e analysisand notification.

Power supply Available conventional 230v supply w

ill be used for powering TRM

S

Major Features

The major functions of the system

are to monitor, detect, acquire, control and display the CP (TR) station perform

ance online.M

ajor features are as follows:

�System

measures the output of the T/R (Voltage and Current) and also checks the AC supply to the T/R. In addition, it also

measures the pipe-to-soil potential at the drain point w

here the T/R is attached to the pipeline.�

Comm

unication of data from fields to H

Q or control station using GSM/SM

S, selected because of its reliability, goodcoverage and econom

ic cost�

Software for displaying and archiving/exporting the data, and for controlling the configuration of the m

onitoring (field)units (ex. settings alarm

thresholds)�

Continuously monitors TR AC inputs &

DC outputs and notifies at base station or control station via GSM/w

ireless�

Monitors Pipe to soil potential

�Detects and notifies/display over protection, under protection, over voltage, over current, and M

CB trip online at control station�

Electrically isolated input channels�

Data statistics of the previous readings (average, historical information, online graphical presentation, report generation etc)

�H

istorical storage of TR parameters and alarm

events�

Emergency w

arning & Program

mable SM

S comm

unication

�On dem

and data and User friendly operations�

Password protected/Secured operations

�Reduces expenditure incurring on pipeline m

aintenance�

Remote controlling of TR (Optional)

�Built in GPS controlled tim

er and Interrupter using this function the T/R can be switched on and off in a synchronized w

ayfor conducting potential survey (Optional)

�Control TR output based on PSP /set references (Optional)

�Alerts sent to m

obile phone (Optional)�

UPS w

ith Battery backup (Optional)�

Compact size to accom

modate inside TR unit

�Custom

ized features�

Control of TR output relay via mobile phone (Optional)

�ROI in five m

onths

SPECIFICATIONS

POWER

DD size Lithium Battery (dry) (Optional)

Battery 3.6V/36Ah (2 in series)Input Pow

er Supply9V ± 0.5V, 0.5Vp-p ripple (From

AC-DC Adapter)Current Consum

ption (DC)M

ax.180mA (w

hile sending message)

Max.80m

A (in ideal condition)

INTERFACE

InterfaceSerial RS-232C

Comm

unicationW

ireless (GSM protocol)

Comm

unication with Base Station

through GSM M

ODEM (SM

S)

LED INDICATORSPow

er ONLED (Red) ON

Network connected/available

LED (Yellow) blinks for 200m

S ON and goes OFF for 800mS

Network not available

Continuous ON

MON

ITORED PARAMETERS

PSP 0 to -5V

TR output DC voltage0 to 50 V or 0 to 75V

TR output DC current0 to 50 A or 0 to 75A

Mains AC Voltage

170 to 300V, 50Hz, Single phase,

AC Current0 to 25A

Battery/Adapter Voltage9V ± 0.5V (From

AC-DC Adapter)

ANN

UCIATION

Over Voltage (OV)Over Current (OC)Input / Output M

CB TripOver protectionUnder Protection

ENVIRON

MEN

TAL CONDITION

SOperation Tem

perature-20°C to + 85°C

Storage Temperature

-40°C to + 90°COperating H

umidity

5% ~ 90%

(Non condensable)

ENCLOSU

RE (OPTIONAL)

TypeSheet M

etalSize

180*180*130 mm

Weight

1.5 Kg (approximately

Mounting

Can be accomm

odated in side TR unit or outside

BASE STATIONCom

puter SpecificationsPentium

-IV.M

in. Hard Disk: 40GB &

Recomm

ended: 80GB. RAM Capacity: 1GB.

Required Mem

ory Space for Front-End: 15MB.

Window

s Operating System (W

indows 98 and Later Versions) except W

indows Vista.

MS Access: Version 2003 or 2007/M

S Excel. .Net Frame W

ork 2.0,Crystal Report. Serial Port/USB Port. Graphics Card w

ith Color Monitor