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APPLICATION OF SCADA ON AN

11KV/440V K-ELECTRIC DISTRIBUTION

SYSTEM USING SMART RELAY

By:

EE-001: Omer Sayeed

EE-002: Hafsa Abdul Hai

EE-010: Usaid Javaid

EE-029: Ummat Ul Ain (Group Leader)

DEPARTMENT OF ELECTRICAL ENGINEERING

Project Advisors:

Mr. Fezan Rafique (Project Internal Advisor)

Mr. Qazi Arsalan Hamid (Project External Advisor)

Overview

Introduction

MiCom P115 Relay

Communication Via The Rear Port

Communication Via The Front USB Port

Data Extraction

Data Processing

Programming Using Java Script

Programming Using Html

Conclusion

Department Of Electrical Engineering 2


Introduction

The aim of our project is to inform the

control room engineers about the breaker

tripping and the voltage and current values

sensed by the relay.

This can be done by transferring the relay’s

data to a host computer which uploads it on

a web server giving the fault correction

department continuous eyes on supply.

Objectives

To explore the active features of a ‘Smart

Relay’.

Explore and utilize the concept of time

value of money.

To learn different web designing languages

and techniques for the designing of the

web server.



What is MiCom P115 Relay?

MiCom P115 are

numerical relays

designed to offer

over current plus

single, double or

three phase

earth fault and

phase to phase

short circuit

protection.


Features of MiCom P115 Relay

1. Communication Functions

Front USB Port

RS 485 Rear port

2. Measurements and Recordings

3. Protection Functions

4. Input and Output Functions


FUNCTIONAL DIAGRAM OF P115 RELAY


COMMUNICATION VIA THE REAR PORT

There are two models of this relay:

Self-powered Model

Dual-powered Model

Self-powered model powers up only when

internal (i.e. CT current) supply is available

whereas the dual powered model can power up

using auxiliary supply as well.


The rear RS 485 port is operational only in the

dual-powered model of this relay.

This port remains inactive unless the sum of

currents which power up relay isn’t greater than or

equal to:

0.5In= Ia: 0.25In + Ib: 0.25In+ Ic: 0In +IN: 0Ien.

Here,

Ia,Ib and Ic = Phase current values.

In = nominal secondary current of phase CT(5A).

IN = the neutral or residual current.

Ien = the rated secondary current of earth fault CT.


FEATURES OF RS-485 STANDARD

Communication over longer distances

(upto 1200m).

Communication at quicker rates.

Good noise immunity.

Network Topology: Multi-point

Mode of operation: Half Duplex


DISADVANTAGES OF RS-485 PORT

The RS 485 port cannot be utilized to

communicate with a PC directly. So, it can be

converted to RS 232 port for the data

communication.

SPECIFICATIONS OF RS-232 STANDARD

Network Topology: Point-to-point.

Mode of operation: Full Duplex


CONVERSION FROM RS 485 TO RS 232


FEATURES OF THE FRONT USB PORT

Simple to use for end client

Extensive variety of applications

High data transfer rates

Low cost implementation


USB INTERFACE WITH THE USB PORT

A USB client interface MiCom S1 Studio

software is used in the P115 overcurrent relay.

MiCom S1 Studio is an integrated

engineering tool that provides users with the

ability to view the measurement information

and extract all the events and fault records

stored in the relay.


Relay Settings:Baud Rate = 115200 bits per second

Stop bits = one stop bit

Data Bits = 8

Parity = None

These settings can be changed via the HMI panel

or through the USB port.

Measurement and Recordings:Events

Faults

DATA EXTRACTION


DATA PROCESSING

File Conversion from .MS1

format to .CSV Format.

Parsing the CSV file

Transposing the CSV file


FILE CONVERSION FROM .MS1

FORMAT TO .CSV FORMAT


PARSING THE CSV FILE


PARSED OUTPUT


TRANSPOSED OUTPUT


WEBPAGE DESIGNING

1. PROGRAMMING USING JAVASCRIPT

Importing the files.

Reading the files and declare them in

an array.

Selecting data that is to be displayed

on the web page.


Importing the files

<script

src="http://127.0.0.1:8000/jquery.min.js"></script>

<script src="http://127.0.0.1:8000/jquery.csv-

0.71.js"></script>

<script>

function readText(x) {

var rq = new XMLHttpRequest();

rq.open('GET', x , false);

rq.send("");

if (rq.status >= 200 && rq.status < 400) {

return rq.responseText;

}

Reading the files


•Using JavaScript, some specific fields were

selected by accessing the ‘p1’ array where

the imported file was stored.

•The selected fields were: ‘Date’, ‘Time’,

‘Code’ and ‘Line 001’ to ‘Line 009’.

•Each individual value in the CSV file was

accessed using a for-loop.

•For loop was used to display all the events

sequentially.

Selection of Data


The ‘setInterval()’ function achieves this

purpose.

Using this function, the JavaScript code is run

repeatedly after every second.

Each time it runs, the details of an ‘event’ or a

‘fault’ are displayed onto the console window.

After all the events have exhausted,

‘clearInterval’ function breaks the repeated

execution of the ‘setInterval()’ function.

REAL TIME DATA TRANSMISSION


2. PROGRAMMING USING HTML

Linking the Java Script Code

<script></script>

Displaying the data on the

webpage

Styling the webpage

Animating the webpage


DISPLAYING THE DATA ON THE

WEBPAGE

document.write(String that is to be displayed);


STYLING THE WEBPAGE

a. Data Tabulation

Initialization of the table

<table></table>

Rows and Columns

<tr></tr> and <td></td>

Table border and cell spacing

Height and width


TABULATED WEBPAGE OUTPUT


b. Highlighting the cells

bgcolor="#D8D8D8" and bgcolor="#FF0000"


ANIMATING THE WEBPAGE

Properties

Type: Plain Object

Duration (default: 400)

Type: Number or String

Easing (Type: String)

It has two types:

a. Swing

b. Linear

Complete

Type: Function()

.animate(properties,[duration],[easing],[complete])


HOW WILL IT BENEFIT THE

BUSINESS?

Efficient transfer of information

between the relay and the control

room.

Fuel and transportation costs

will be saved.

Labor costs will be saved.

Upgradation of the system


Beneficial for business.

An opportunity for us to study about

the functions and working of Schneider

Electric’s MiCom P115 Relay.

An opportunity to gain an experience

of working with K-electric.

Conclusion

Thank

YouQ/A


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