NAGARANI
Senior SCADA Engineer
*.********@*****.***
Professional Experience:
• Over 8 years of experience in Planning, Analysis, Design, Development, Implementation,
Integration, Simulation, Testing and Debugging in the field of Supervisory Control and Data Acquisition
Systems (SCADA), Energy Management Systems (EMS), Distribution Management Systems (DMS) and
Inter Control Center Communication Protocol (ICCP).
• Around 2 years of Sweden experience in ABB SCADA system (Network manager) in development
and Release testing.
• Hands on training in SCADA module for a period of 6 months at Nuremberg, Germany for system
testing in Siemens
Experience Summary
With Siemens Technology and Services Ltd.
Siemens SCADA system – Spectrum PowerCC Version 5.2
Duration: July2010 to Aug2012.
• Roles and Responsibilities at Siemens
• Creating Test Specifications, Review and contributing to Test Plans.
• Setting up the test environment, Prepare and acquire Test data.
• Experienced in different phases of testing that includes unit testing, Integration testing, System
testing, regression testing and service pack testing
• TMS, Clear quest tools are used during all test levels to record execution results and to report the
deviations.
• Worked as System Tester in SCADA in the following modules Data Processing, Alarm
Management, Manual update, Markers and Tags, Real time Calculations, Interlocking checks,
Supervisory Control, Network Topology, Quality Processing, Redundancy and availability for Servers
(Real time server – RTS and Power system Object server PSOS) and Realtime Accumulator
Processing.
• Worked as System Tester in Context management in modules DNAStudy, TNAStudy, Planning,
TestMode and SPMstudy and Worked as system tester for Switching Procedure Management for
switching orders and switching programs. This program allows you to send a list of controls as per the
configuration. The SO can be scheduled to work repetitively.
• Worked as a tester for System management UI application and System Diagnostics applications.
Worked as system tester for Trending curves (Curves for Historical data, Real time data and calculations).
• Worked as a system tester for Runtime applications Work Flow – Energy Control, PAT – Power
Application tool bar, WinCC Display creation, menus and tool bars creation, property window and Runtime
explorer.
With ASEA Brown Boveri (ABB Ltd.)
ABB SCADA System – Network Manager & S.P.I.D.E.R systems.
Duration: Sept2005 to Jun2010.
• Design Functional Design Specification (FDS) documents for SCADA, DMS, EMS and Naming
Convention documents according to the customer specifications and getting the approval from customer.
• Preparation of purchase drawings, OS and OD as per the project specification.
• Preparation IAT, FAT and SAT (Internal, Factory and Site Acceptance Test) for SCADA, DMS and
EMS as per the FDS and getting the approval from the customer.
• System installation, Design and Engineering as per the approved FDS documents for
SCADA/DMS/EMS. Conducting the IAT, FAT tests.
• Commissioning of the Control Center to acquire different type of data from RTU like Digital
Input/output, Analogue Input/output, Meter & Relay Data and process them to SCADA in required
protocols (IEC 60870 5 101,104,IEC61850)
• Implementing the functions DMS, EMS, ICCP and other functions as per the customer requirement.
• Preparation of single line diagrams in DE400 as per the requirement.
• The different tools used at the control center are Graphical Data Engineering used
DE400(application for Data Engineering), PED500 (Picture Editor), WS500 tools (work station HMI),
Authority Explorer for assigning the rights for the users, SX Reports (for creating the Historical Reports),
UDW explorer( for creating oracle Queries for the events), SIS500 (Service information system tool for
recording and storing operational information), Developed routines in SPL (Spider Programming
Language) Program, PCU400 Process Communication Unit (front End Processor), configuring IS500
(Information Server – displays the real time data in Web browser) server and UDW import/export
functionality configuration for taking the old backup and restoring the backup.
• Worked with the following EMS (Energy Management Systems) Modules – State Estimator,
Network Parameter Update, Optimal Power flow, Dispatcher Power flow, Network Sensitivity and Short
circuit Analysis.
• Worked with DMS (distribution Management Systems) Modules Load Calibration, Load Flow
Calculation, Fault Location, Isolation and System Restoration and also worked with DMS Reports
creation.
• Network Manager supports sharing of data with other control centers by inter center
communication protocols.
• Developed Under Frequency Load Shedding module for the city of Capetown in Redhat Linux and
C under the guidance of ABB, Sweden.
• Worked with RTU560 and RTU211 with the Ethernet communication protocol IEC 60870 104.
• Worked with IEC 60870 101 protocol and also IEC61850 protocol.
• Experience in WAN, LAN, Database and Servers.
• To provide innovative and cost effective solution for Sales&Maketing during Project bidding.
• SCADA Technical Support for commissioning sites to solve the technical Issues.
• Conducting Network Manager Trainings for Internal&Customers.
With CMC Pvt. Limited (Computer Maintenance Corporation Limited)
CMC SCADA System – OSKER (Open SCADA Kernel)
Duration: Sept2004 to Aug2005.
• Preparation of software requirement specification documents.
• Design and Development of web page using C, UNIX and PHP to get the data for different
stations, Control center hardware status on the web page.
• Design and Development for storing the Historical data in zip files and made available for future
reference.
• Testing of the developed modules and are integrated and delivered to the customer.
Software Skills
Operating Systems : UNIX, Red Hat Linux 7x / WS, Windows XP / Vista / 7,
Micro soft office 2003, 2007, 2010
Programming Languages : C, C# and Fortran.
Networking : TCP/IP, LAN/WAN, Routers and Switches.
Scripting Languages : HTML, PHP
Inter Process Communication : Network Programming (TCP/IP),
Linux Kernel Programming, Linux Device Drivers
Data Base : Oracle Database, Oracle Application Server
Academic Qualifications
• Master Of Technology in Electrical Power systems from J N T University in 2005
• Bachelor of Technology in EEE from J N T University in 2002
PROJECT DETAILS
Client : SIEMENS, GERMANY
Module(s) : Spectrum PowerCC Release 5.2
Role : Senior SCADA engineer
Duration : June 2010 to July 2012
Spectrum PowerCC is the SCADA/ TNA (Transmission Network Analysis)/DNA (Distribution Network
Analysis) / ICCP (Inter Control Center Communication Protocol) solution for electrical, water and gas systems.
It offers a full range of solutions to enhance the efficiency and reliability of power systems in electricity
markets.
Major Roles & responsibilities
Testing the SCADA module for PowerCC and it is release builds for the customer, Supporting test
automation team in writing the automation scripts and validating the same against the test cases.
Creating Test Specifications, Review and contributing to Test Plans.
Setting up the test environment, Prepare and acquire Test data.
Experienced in different phases of testing that includes unit testing, Integration testing, System
testing, regression testing and service pack testing
TMS, Clear quest tools are used during all test levels to record execution results and to report the
deviations.
Worked as System Tester in SCADA in the following modules Data Processing, Alarm Management,
Manual update, Markers and Tags, Real time Calculations, Interlocking checks, Supervisory Control,
Network Topology, Quality Processing, Redundancy and availability for Servers (Real time server –
RTS and Power system Object server PSOS) and Realtime Accumulator Processing.
Worked as System Tester in Context management in modules DNAStudy, TNAStudy, Planning,
TestMode and SPMstudy and Worked as system tester for Switching Procedure Management for
switching orders and switching programs. This program allows you to send a list of controls as per
the configuration. The SO can be scheduled to work repetitively.
System tester for System management UI application and System Diagnostics applications. Worked
as system tester for Trending curves (Curves for Historical data, Real time data and calculations).
Worked as a system tester for Runtime applications PAT, WinCC Display creation, menus and tool
bars creation, property window and Runtime explorer.
Client : ABB, Bangalore
Module(s) : Network Manager SCADA, EMS and DMS (Release 3.4)
Role : Technical Lead engineer
Duration : Sep 2009 to June 2010
Network Manager is the SCADA/EMS/DMS/GMS solution for large electrical and gas systems: It also offers a
full range of solutions to enhance the efficiency and reliability of power systems in electricity markets.
System Functions Involved
The principal components of Network Manager SCADA/EMS/DMS/GMS are Utility Data ware house,
Application Servers, Front End Processor, and Information Server.
It performs various important functions like
Acquire data from the field equipment,Processing acquired data
User defined Calculation, Supervisory Control and Interlocking
Monitoring, Generates alarms and events.
Generating reports as per the client requirements.
Automatic Generation Control(AGC)
Energy Management system (EMS)
Distribution Management systems (DMS)
Major activities & responsibilities in Network Manager:
Worked with NDMC Project Delhi for installation and Internal Acceptance Test and Factory
Acceptance test with SCADA/DMS as per the customer specifications.
Trained the lead engineers in different projects for the Installation and Testing of the
SCADA/DMS/EMS/ICCP systems as per the standard FAT Procedures
Support to the projects during the FAT / SAT activities and document preparations as
and when required.
Technical support to Engineers for SCADA, DMS and ICCP Functions for Reliance
Energy Limited, Mumbai, Reliance Energy Limited Delhi, Tamilnadu state electricity
Board – Chennai and Eastern Power Distribution Company Limited, Vizag for trouble
shooting.
Writing oracle queries for data mining in UDW explorer according to the specification of the customer.
Developing routines in Spider Programming Languages, i.e., general purpose calculations related to
power system data according to the specifications with client.
Deployed as Training Manager for Network Management Systems, Preparing documents organizing
and executing trainings to the customer.
Client : ABB Ltd, Sweden and ABB Limited, INCRC
Module(s) : Network Manager Release (4.0 & 4.2) IAT System deployement and testing
Role : System Tester
Duration : Jan 2009 to Sep 2009
Deployment of the new release of network manager 4.0 & 4.2 IAT and Testing the modules for new release as
per the test procedures.
Network Manager 4 is incorporated SCADA/EMS/DMS/ICCP, GMS, HMI on Windows Vista and incorporated
the SCADA/EMS/ICCP from Sweden and DMS from Germany and PI (Historic Data Server) from United
States of America.
Major activities & responsibilities in Network Manager:
Installation of Network Manager Release system as per the configuration, which
includes the Trusted, Demilitarize and Emergency center zone along with the security
configuration (active Directory Domain Controllers).
Supervising the system for stability and report the problems if any to enhance the system stability.
Testing the NM modules like SCADA applications and load shedding functions.
Create the reports(SPR) as and when the problem occurs
Key features in Release 4
First time ABB has introduced the Security Configuration in Network Manager Release 4
Merged the PI Historian server (US) with, which is a third party application
Demilitarize zone for connecting the external SCADA systems for Information Server and ICCP.
Testing setup is made at INCRC for first time in India
Client : Torrent power Limited, Surat
Module(s) : Network Manager SCADA and EMS Version 3.4
Role : Technical lead
Duration : Sep 2007 to Dec 2008
Major activities & responsibilities in Network Manager:
Preparation of Required documents and drawings according to customer specifications and
get the approval from the customer.
Preparation of Factory Acceptance and site Acceptance Documents for SCADA, EMS and
DMS (FAT and SAT respectively).
System installed as per the approved FDS documents for SCADA/EMS, Design and
Engineering for the all the 14 SCADA Stations for SCADA and EMS. FAT is completed successfully
for SCADA and EMS as per the customer approved documents.
EMS Modules
State Estimator provides a real time estimate of the steady state of the entire power system
network.
Network Parameter Update updates the adaptive network parameters, e.g. load group
distribution coefficients and Adaptation is done based on seasonal day type definitions.
Optimal Power Flow solves the power flow problems while simultaneously scheduling the
power system controls to optimize some objective.
Dispatcher Power Flow executes the power flow studies, including: loss of lines, changes of
generations or bus loads and changes of system or area loads, for both analyzing the results which
provide a base case solution for other applications.
Network Sensitivity computes the system penalty factors required by other EMS functions.
Short circuit analysis has to find the network part in an electrical network where the short
circuit is located.
Client : Council of City of Cape Town, South Africa
Module(s) : Under frequency Load/Generation Shedding – in Network Manager
Role : Project Engineer / Project Lead
Duration : Sep 2006 to Aug 2007
Plat form : Red Hat Linux 7.3, C, GCC Complier, GDB Debugging Tool
Tools Used : Linux and C
Major activities & responsibilities:
Analysis of System Specification given by Client, Preparing of Functional specification document and
Technical Design development from System Specification.
Development of the Work Package according to the Technical Design Document.
Unit testing of the Development according to the Test criterion
Integration of the modules in to Network Manager.
Preparation of Factory Acceptance (FAT) and site Acceptance (SAT) Document
Aside of being responsible for the project development, identified the requirements, interacted with
the users, provided technical feasibility, implementation, testing.
Different functions developed for UFLS Module:
Under frequency Load / Generation Shedding system is to shed discrete amounts of load / generation in times
of power system under frequency in order to arrest the decline of the system frequency, or if this is not
possible, then to split the network into predefined Islands if generation exists within the respective Island
definition.
Purpose : The purpose of the Under frequency Application is to pre determine the load / generation to be
shed against each under frequency stage and to set up “paths”, via latching relays at the RTU, through which
the under frequency relay contacts will initiate the tripping of the local station breakers. The setting up of the
load “paths” is determined by means of a “Priority List” of feeders.
If an under frequency event has been detected and remains, There is no power supply to the Switching
stations and the bus bar voltage(s) indicate no voltage. In such case Circuit stripping should be enabled to the
station after prior permission from the operator.
If the system frequency has recovered to a value above the Restoration Frequency (“RFreq”) set point,
typically set to 49.5 Hz, the “Under frequency Application” will provide an alarm to the operator indicating that
the system frequency has recovered sufficiently to start restoration and, on command from an operator,
commence restoring the loads / feeders by closing the breakers which tripped during the under frequency
event in the reverse priority order as set in the priority list.
The data required for under frequency load shedding is imported from excel (Comma separated value csv)
file to the avanti database in Network manager application servers.
Client : Reliance Energy Limited, Mumbai
Module(s) : Network Manager SCADA Version is 2.3
Role : Project Engineer
Duration : Sep 2005 to Aug 2006
Major activities & responsibilities in Network Manager:
Worked with Graphical Data Engineering DE400 tool is an application for data engineering
Worked with PED500, is the picture editor for an efficient engineering of graphic pictures Developed
routines in Spider Programming Languages
Developed Reports of various kinds according to specification with client.
Resolve the problems occurred with online systems and during testing.
The PCU400 Process Communication Unit manages, communication with RTUs, IEDs and
Substation Automation in supervisory control systems.
Worked with WS500, is user interface for demanding real time supervisory control of geographically
distributed processes.
Information Servers, which displays real time process information in web browsers and provide
possibilities to extend its functionality by standard HTML and Java Applet techniques.
Service Information Systems, is the tool for recording and storing operational information.
Network Manager supports sharing of data with other control centers by inter center communication
protocols.
Tested DMS system at customer location, Worked on following functions in DMS Modules
Load Calibration, Load Flow Calculation, Fault Location, Isolation and System Restoration
(FLISR), Fault Isolation proposes, System Restoration, DMS Reports creation
Client : NTPC (Web Enabling of OSKER–Open SCADA kernel CMC flagship product)
Role : Team member
Plat form : Red Hat Linux 7.3, C, GCC Complier, GDB Debugging Tool,
Oracle, Shell Programming
Duration : Aug 2004 to Aug 2005
OSKER is a SCADA product designed and developed for various applications of Power like Load Dispatch,
Distribution Automation, Substation Automation, Generation Monitoring and Railway Traction Systems. It
provides features like real time display alarms and events processing, real time and historic trend curves
depicting the field values and logged data. The principal components of OSKER are HOST, MMI and FEP.
It performs various functions such as Acquire data from the field equipment Process, Monitor the acquired
data Generates alarms and events, Log the data and Generate reports.
Contribution
Preparation of Software requirement Specification (SRS) Document
Understanding of OSKER data flow.
Design, Development of the webpage to display LMS status, WAN status and Node status for NTPC
through wide area network (WAN).
Design and Development to get the data for different stations and store the result in a zip file for every 5
minutes
Compilation Of Linux Based OSKER Code
Reengineering and Enhancement of OSKER wherever required.
Testing – Preparing and execution of test cases and developed functions are integrated and delivered to the
customer.