This document summarizes an internship presentation given by Nurul Syafiqah Binti Mohd Najib. The presentation covered: 1. An overview of Siemens Malaysia, including its divisions and business areas. 2. Details about the internship program, including a 5-month placement in the office followed by 1.5 months on-site. 3. The internship project, which involved retrofitting synchronization and generator protection systems at the TNB Putrajaya Power Station. The project exposed the intern to various electrical and commissioning tasks.

1. Welcome to
Siemens Malaysia
Nurul Syafiqah Binti
Mohd Najib
Electrical & Electronic
Engineering
UTP Supervisor :
Ir. Mohd Faris B. Abdullah
Host Company
Supervisor:
Mr. Johan Abd. Aziz

2. Industrial Internship
Oral Presentation
Outline:
1. Company Profile
2. Industrial Internship Programs
3. Industrial Internship Project
4. Recommendation
5. Exposure
6. Question and Answer Session

3. 1. Company Profile
A German multinational
conglomerate company
headquartered in
Munich, Germany.

4. 1. Company Profile
Energy Healthcare Industry Infrastructure
& Cities
Divisions Divisions Divisions Divisions
 Fossil Power  Imaging & Therapy  Industry  Rail Systems
Generation Systems Automation  Mobility and
 Wind Power  Clinical Products  Drive Technologies Logistics
 Solar & Hydro  Diagnostics  Customer Services  Low and Medium
 Oil & Gas  Customer Solutions  Metal Technologies Voltage
 Energy Service  Smart Grid
 Power Transmission  Building
Technologies
 OSRAM*

5. 2. Industrial Internship Program

7. 1. Company Background
E F IE ASEAN
Head of Business Unit
Business
Administration
Training Secretary
Sales – New OPP Engineering & Project Service
Management
E-Face (DCS) Bid After Sales Operation
Project Project Bid & Team
Management Engineering Instrument
Management Management
(DCS) (E-BoP) Turbine
Commissioning
Team*3
Hardware Software Commercial
Engineering Engineering

8. 2. Industrial Internship Program
Office (5 months) Site (1 ½ month)
End of Internship
Other
Project Project
tasks
7 Months

9. 2. Industrial Internship Program
Internship Project
Putrajaya • Electrical system
Power Station • Erection & Commissioning
Involvement
Centralised Utility • Proposal Preparation
• Technical Clarification
Facilities
• Data Collection
• SEE retrofit
Casecnan, Philipine • Cable schedule
• SEE retrofit
Zaharani, Lebanon • Cable Schedule
• Data Collection

10. 3. Industrial Internship Project
Retrofit of SFC/SEE and Synchronization/
Generator Protection at TNB Putrajaya Power Station.

11. 3. Industrial Internship Project
The existing turbine control and electrical system has become obsolete.
To replace the turbine control and electrical system that has become obsolete.

12. 3. Industrial Internship Project
1. To be familiarized with the basic concept of power plant operation.
2. To learn about the theory and electrical design of Synchronization / Generator
Protection.
3. To learn about the theory of start-up and excitation system of a gas turbine.
4. To experience and assist the erection & commissioning works at site.
5. To implement Health, Safety and Environment (HSE) practices in the
workplace.

13. 3. Industrial Internship Project
Air Intake
Filter House
Gas Turbine
Exhaust Diffuser
Generator
PCC

14. 3. Industrial Internship Project
SGT5 2000E (V94.2) (156 MW) – Open Cycle Gas Turbine

15. 3. Industrial Internship Project

16. 3. Industrial Internship Project
GT4

17. 3. Industrial Internship Project
Electrical System:
Grid Circuit Breaker
1. Synchronization /
Protection System
2. Start-Up Frequency
Converter (SFC)
3. Static Excitation
Equipment (SEE)

18. 3. Industrial Internship Project
Synchronizing
Variables:
1. Voltage
Magnitude
2. Voltage
Frequency
3. Voltage
Phase Angle
Difference

19. 3. Industrial Internship Project

20. 3. Industrial Internship Project
Part 1
DIAGRAM
CABLE NUMBER SOURCE TERMINAL CABLE
DIAGRAM
(EXISTING) (EXISTING) (EXISTING) CORE (NEW)
22BFE1004 +22CJN01 -X10: 201 1BK CJN01GW001 CJT01GW001
22BFE1004 +22CJN01 -X10: 204 BN CJN01GW001 CJT01GW001
22BFE1004 +22CJN01 -X10: 207 2BK CJN01GW001 CJT01GW001
Part 2
PAGE PAGE TERMINAL CABLE NUMBER CABLE TYPE
(EXIST) (NEW) (NEW) (NEW, IF DIFF) SIZE (MMSQ)
D04 E032 -X10: 201 - NYY-J 5x10RE
D04 E032 -X10: 204 - NYY-J 5x10RE
D04 E032 -X10: 207 - NYY-J 5x10RE

21. 3. Industrial Internship Project
Part 3
TARGET TERMINAL SIGNAL KKS SIGNAL DESCRIPTION REUSE
+22BFE10.BA001 -X2: 1 22CJN01GW021 400V AC INCOMING FEEDER L1 Y
+22BFE10.BA001 -X2: 2 22CJN01GW021 400V AC INCOMING FEEDER L2 Y
+22BFE10.BA001 -X2: 3 22CJN01GW021 400V AC INCOMING FEEDER L3 Y

22. 3. Industrial Internship Project
Internal Connection
Panel Nameplate
Cable Termination Cable Cores Modules

23. 3. Industrial Internship Project

24. 3. Industrial Internship Project
Existing Components New Replacement Modules
Power Supply –F81 Power Supply –F81 & -F82
(7SV11) (SITOP 6FP)
Coupling Modules –F97 Lockout Relay
& -F98 (7UW20)

25. 3. Industrial Internship Project
Existing Components New Replacement
Synchronizing Device Automatic Paralleling
(7VE21) Device –D01 (7VE61)
Sync Check Relay Sync Check Relay –D02
(7VM22) (7VK61)

26. 3. Industrial Internship Project
The existing modules, cables & The synchronizing relay
cores termination for CHA 11/12/13 parameterization (Automatic
panels are verified based on existing Paralleling Device – D01 & Sync
drawing and cable schedule. Check Relay – D02) are set up.
The cable terminals are The new modules / components
disconnected and the old modules / are installed in the panel and the
components are removed. cables & cores are connected based
on the new cable schedule.

27. re
3. Industrial Internship Project
Continuity check is done to Cold commissioning is done by
ensure the correct connection as in giving the input from HMI to see the
new drawing. relay function as expected.
1. Able to identify the tools used during dismantling and installing work.
2. Learn read the cores terminal, tagging, drawing.
3. Learn how to trace the cables with no tagging previously using
multimeter

28. re
3. Industrial Internship Project

29. 3. Industrial Internship Project
1. Start-Up Frequency
Grid Circuit Breaker
Converter
2. Static Excitation
Equipment

30. 3. Industrial Internship Project
Function: Assist generator to accelerate
the gas turbine set up to its operating
speed. (3000 rpm)
Electrical auxiliary supply provide start-
up energy from the grid.
Electrical generator operate as
synchronous motor.
The converter shut down at 70% of the
rated speed, gas turbine operates on its
own. (2100 rpm)

31. 3. Industrial Internship Project
Function: provides controlled DC-current
and DC-voltage to the generator rotor
winding in order to control the output
voltage to the grid.
Generation of the magnetic field in rotor
Control of generator voltages to be
according to set value during
synchronization with the grid.

32. 3. Industrial Internship Project

33. 3. Industrial Internship Project

34. 3. Industrial Internship Project
All existing power, signal and The brick wall at turbine hall
control cables are identified and behind the PCC removable wall will
disconnected from the cabinet. be broken and hacked.
The new SFC/SEE panels are All power, signal and control
transferred onto the turbine walking cables are terminated according to
platform by forklift and located the interconnection diagrams.
inside the PCC

35. 3. Industrial Internship Project
Removed wall
beside
generator

36. 3. Industrial Internship Project
Hacked wall in front
of the generator

37. 3. Industrial Internship Project

38. 3. Industrial Internship Project

39. 3. Industrial Internship Project
There are cables with
no tagging.

40. 3. Industrial Internship Project
1. Try to operate the gas turbine with No-Load & Full-Load test.
2. Combustion in combustion chamber is tested using fuel gas and fuel oil.
3. There are troubleshooting process done before the turbine can reach its
operating speed (3000 rpm).

41. 3. Industrial Internship Project
1. First firing: the speed of the gas turbine is increasing very slow, there is a time
limit where the SFC will be off and the gas turbine trip automatically.

42. 3. Industrial Internship Project

43. 3. Industrial Internship Project
1. No-Load Test: The isolator of generator circuit breaker is in open condition.
2. Full-Load Test: The isolator is closed and the generator circuit breaker is
synchronized and connected to the grid.

44. 3. Industrial Internship Project

45. 3. Industrial Internship Project
1. The project is almost accomplish where the commissioning phase is now
towards the end.
2. The individual objectives are almost achievable :
 Familiarized with the basic concept of power plant operation.
 Learn about the theory and electrical design of Synchronization / Generator
Protection.
 Learn about the basic theory of start-up and excitation system of a gas turbine.
 Experience and assist the erection & commissioning works at site.
 Implement Health, Safety and Environment (HSE) practices in the workplace.

46. 3. Recommendation
More hands on task and training activities in the office and also at the project
site.
Provide a better and practical way of delivering the responsibility of the host
company supervisor. (Ex: Briefing by UTP supervisor during 1st visit about the
guideline – Internship Guideline 9.1.1)
Better enforcement of HSE practice at site.
Prepare more power plant spare part in case of any emergency.

47. 3. Exposures

48. 3. Q& A Session