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Welcome to

Laboratory of Electrical Energy Conversion and Power System

In this brief outline, we would like to invite you to look inside the description of laboratory mission, history and activities that contain of laboratory practices, research, training & services


As a part of Electrical Engineering Department of Engineering Faculty of Diponegoro University, Electrical Energy Conversion and Power System laboratory has three significant roles to play as they are:

  • Conducting laboratory practices as apart of teaching and educational responsibility to ensure deeper understanding of the student about their subject of lectures.
  • Conducting research in field of electrical utilization related to industrial development. Students and lectures are facilitated to conduct research whether as individual research or joint research in the laboratory.
  • Conducting society services related to electrical utilization. By this services collaborative program or research are possible to conduct in order to solve the problem within in electrical utilization for residential or industrial application.

About Us

Electrical Energy Conversion and Power System Laboratory formerly was established as integrated laboratory of Electrical Department of UNDIP in year 1983.  All the laboratory practice for student who chooses electrical power concentration was conducted in the same laboratory within students of electronics concentration in Kampus Pleburan – UNDIP (Down town – Semarang). In year 1997 when Electrical Engineering Department had to move to the new location in Tembalang (Up town-Semarang), laboratory practices for student of electrical power concentration was conducted for the first time in the separated room as the new laboratory. This was the year when Electrical Energy Conversion and Power System Laboratory become self-laboratory in Electrical Engineering Department. Ir. Karnoto had become the chief of laboratory when it conducted the first laboratory practice in Campus Tembalang.

Several lecturers have been elected as chief of laboratory since Electrical Energy Conversion and Power System Laboratory was established as self-laboratory. They were

  • Ir. Tedjo Sukmadi
  • Ir. Joko Windarto
  • Ir. Bambang Winardi
  • Ir. Karnoto
  • Mochammad Facta
  • Ir. Hermawan, DEA, Ph.D

Since 2004 through unanimous election, Ir. Hermawan, Ph. D has become chief of Electrical Energy Conversion and Power System Laboratory.

In the year 2005 the chief of laboratory is Mochammad Facta and the secretary of laboratory is Ir. Abdul Syakur, M.Eng.

Since 2009 up to now 2011 the chief of laboratory is Ir. Hermawan, Ph.D and the secretary of laboratory is Ir. Karnoto, M.Eng.

In line with the mission to conduct education, research and social services, the laboratory has several activities regularly conducted. Those are:

  • Laboratory Practice
  • Laboratory Research
  • Laboratory Services

Laboratory Practices

In line with the curriculum of Electrical Department, laboratory provides practices and services.
There are 10 laboratory practices conducted in a year, three practices are for general students of electrical department. Those are:
1. Electrical measurement and instrumentation (Pengukuran Besaran Listrik)
2. Electrical Circuit (Rangkaian Listrik)
3. Basics of Electrical Energy Conversion (Dasar Konversi Energi Listrik)

Seven laboratory practices are intended to be conducted for students in advance level who have already registered and joined into electrical power concentration. Those laboratory practices are:
1. Electrical Machine (Mesin Listrik)
2. Power Electronics (Electronika Daya)
3. High Field Analysis and High Voltage Engineering (Gejala Medan dan Tegangan Tinggi)
4. Relays and Protection System (Sistem Proteksi dan Rele)
5. Electric Drive (Pengemudian Mesin Listrik)
6. Illumination and Electrical Installation and Design (Iluminasi dan Instalasi Listrik)
7. Computer Application in Power System Analysis (Aplikasi Komputer dalam Sistem Tenaga)

Schedule for Practices
All kind of laboratory practice are conducted into two semester every year. Schedule for laboratory practices for each semester are presented as follow:
Odd semester
1. Basics of Electrical Energy Conversion
2. Electrical Machine
3. Illumination and Electrical Installation and Design
4. Computer Application in Power System Analysis
5. Relays and Protection System
Even semester
1. Electrical measurement and instrumentation )
2. Electrical Circuit
3. High Field Analysis and High Voltage Engineering
4. Power Electronics
5. Electric Drive

Basic Laboratory Practices

Electrical measurement and instrumentation practices (Praktikum Pengukuran Besaran Listrik)
1. Metode Pengukuran Tahanan
2. Metode Pengukuran Induktansi
3. Metode Pengukuran Capasitansi
4. Pengukuran Tegangan
5. Pengukuran Arus
6. Pengukuran daya 1 Fasa
7. Pengukuran Daya 3 Fasa
8. Pengukuran Bentuk Gelombang (Osiloskop)
9. Pengukuran Frekuensi
10. Pengukuran Tahanan Isolasi

1. Simulasi Pengukuran Arus
2. Simulasi Pengukuran Tegangan
3. Simulasi Pengukuran Gelombang

Electrical Circuit Practices (Praktikum Rangkaian Listrik)
1. Rangkaian Jembatan DC
2. Rangkaian Jembatan AC
3. Hukum Kirshoff – Arus
4. Hukum Kirchoff – Tegangan
5. Teorema Thevenin
6. Teorema Norton
7. Teorema Superposisi
8. Teorema Reciprocity
9. Teorema Kompensasi
10. Rangkaian Dua Pintu
11. Aplikasi Transformasi Y-D
12. Rangkaian RLC Seri
13. Rangkaian RLC Paralel
14. Rangkaian RLC Seri-Paralel

1. Simulasi Transient RLC
2. Simulasi Laplace Transform
3. Simulasi Analisis Fourier
4. Simulasi Respond Filter LPF
5. Simulasi Respond Filter BPF
6. Simulasi Respond Filter HPF

Basics of Electrical Energy Conversion Practices (Praktikum Dasar Konversi Energi Listrik)
Konversi Listrik-Listrik
1. P. Trafo 1 Fasa
2. P. Trafo 3 Fasa
Konversi Listrik Mekanik
3. P. Motor Induksi 3 Fasa
4. P. Motor Induksi 1 Fasa
Konversi Mekanik – Listrik
5. P. Motor – Gen. DC
6. P. Motor Gen AC 1 Fasa
7. P. Motor Gen AC 3 Fasa
Konversi Diesel Listrik
8. P. Mesin Diesel – Gen
Konversi Cahaya Listrik
9. P. Solar Sel
Konversi Kimia-Listrik
10. P. Sel Volta-Galvanis
Konversi Angin – Listrik
11. P. Kincir-Gen
Konversi Air Listrik
12. P. Turbin-Gen
Pembangkitan & penyaluran
13. P. Pembangkitan dan Distribusi Listrik


Basic Laboratory Practice Devices & Modules

Advance Laboratory Practices

1. Electrical Machine Practices (Praktikum Mesin Listrik)

AC Machine
1. Generator 1 Fasa
2. Generator Sinkron 3 Fasa
3. Generator Asinkron 3 Fasa
4. Motor Kapasitor Start 1 Fasa
5. Motor Kapasitor Ganda 1 Fasa
6. Motor Kutub Belah 1 Fasa
7. Motor Universal 1 Fasa
8. Motor Induksi 3 Fasa R. Sangkar
9. Motor Induksi 3 Fasa R. Belit
10. Motor Sinkron
11. Trafo 1 Fasa
12. Trafo 3 Fasa 1 inti
13. Trafo 3 fasa 3 inti
14. Rekonstruksi Mesin AC

DC Machine
1. Generator DC Penguat Terpisah
2. Generator DC Shunt
3. Generator DC Seri
4. Generator DC Kompon Panjang
5. Generator DC Kompon Pendek
6. Generator DC Magnet Permanen
7. Motor DC Penguat Terpisah
8. Motor DC Shunt
9. Motor DC Seri
10. Motor DC Kompon Panjang
11. Motor DC Kompon Pendek
12. Motor DC Magnet Permanen
13. Rekonstruksi Mesin DC

2. Power Electronics Practices ( Praktikum Electronika Daya)
Konversi AC-DC
Penyearah 1 Fasa Tak Terkontrol
Penyearah 1 Fasa Semi Terkontrol
Penyearah 1 Fasa Terkontrol
Penyearah 3 Fasa Tak Terkontrol
Penyearah 3 Fasa Semi Terkontrol
Penyearah 3 Fasa Terkontrol
Konversi DC-DC
DC Chopper Step Down
DC Chopper Step Up
DC Chopper Buck Boost
Konversi DC-AC
Inverter 1 Fasa
Inverter 3 Fasa
Konversi AC-AC
AC-AC terkontrol 1 Fasa
AC-AC terkontrol 3 Fasa
UPS 1 Fasa
UPS 3 Fasa

Konversi AC-DC
Penyearah 1 Fasa Tak Terkontrol
Penyearah 1 Fasa Semi Terkontrol
Penyearah 1 Fasa Terkontrol
Penyearah 3 Fasa Tak Terkontrol
Penyearah 3 Fasa Semi Terkontrol
Penyearah 3 Fasa Terkontrol
Konversi DC-DC
DC Chopper Step Down
DC Chopper Step Up
DC Chopper Buck Boost
Konversi DC-AC
Inverter 1 Fasa
Inverter 3 Fasa
Konversi AC-AC
AC-AC terkontrol 1 Fasa
AC-AC terkontrol 3 Fasa

3. High Field Analysis and High Voltage Engineering Practices (Praktikum Gejala Medan dan Tegangan Tinggi)
1. Pembangkitan tegangan AC
2. Pembangkitan tegangan DC
3. Pembangkitan tegangan Impuls
4. Uji Isolasi Udara
5. Uji Isolasi Gas
6. Uji Isolasi Cair
7. Uji Isolasi Padat
8. Medan Listrik AC
9. Medan Listrik DC

1. Simulasi Circuit Braker
2. Simulasi Arester
3. Simulasi Pembangkitan AC
4. Simulasi Pembangkitan DC
5. Simulasi Pembangkitan Impuls
6. Simulasi Medan AC
7. Simulasi Medan DC
8. Simulasi Gelombang Berjalan

4. Relays and Protection System Practices (Praktikum Sistem Proteksi dan Rele)
Setting & Characteristic Measurement
1. OCR – Instantaneous
2. OCR- Definite
4. OCR – VI
5. OCR -EI
6. OCR – UI
7. UVR
8. OVR
9. GFR
10. PFR
11. RPR
12. UFR
13. OFR
14. Negatife Sequence Relay
15. TOR
16. Recloser
17. Sectioanalyser
18. Differential Relay
19. Distance Relay
20. Koordinasi Proteksi
21. ELCB-Penerangan
22. ELCB-Rangkaian Daya

1. Simulasi OCR – SIT
2. Simulasi OCR – VI
3. Simulasi OCR – EI
4. Simulasi OCR – UI
5. Simulasi Proteksi Lepas Eksitasi
6. Simulasi Distance Relay
7. Simulasi Koordinasi Proteksi Motor
8. Simulasi Koordinasi Proteksi Generator
9. Simulasi Koordinasi Proteksi JTR
10. Simulasi Koordinasi Proteksi JTM
11. Simulasi Koordinasi Proteksi JTT

5. Electrical Drive Practices (Praktikum Pengemudian Mesin Listrik)
Motor DC using Relay + PLC
Starting DOL
Starting – Primary Resistor
Forward – reverse operation
Speed Controlling
Dinamik Braking
Renegeratif Braking
Motor Induksi using Relay+PLC
Starting DOL
Starting Y-D
Starting Primary Resistor
Starting Autotrafo
Forward – reverse operation
Speed Controlling
Dinamik Braking
Renegeratif Braking
Slip energy recovery
Ward Leonard Operation
PLC – multimotor
Sequencial Operation
Timer Operation
Counter Operation
Algebra Operation
Analog Input Operation

Using Solid State
Softstart motor DC
Softstart motor AC
Softstop motor DC
Softstop motor AC
Speed adjustment motor DC
Speed adjustment motor AC
Conveyer operation
Crane operation
Blower Operation
Elevator operation
Simulasi Parameter Motor Induksi
Simulasi Operasi Motor Induksi
Simulasi Operasi Motor DC
Simulasi Operasi Generator Sinkron
Simulasi Operasi Generator Asinkron
Simulasi Pengemudian Motor Induksi
Simulasi Pengemudian Motor DC
Simulasi Dasar PLC – ON-OFF
Simulasi Dasar PLC – Timer
Simulasi Dasar PLC – Counter
Simulasi Dasar PLC – Clock
Simulasi dasar PLC – I/O Analog

6. Illumination and Electrical Installation and Design Practices (Praktikum Iluminasi dan Instalasi Listrik)
Pengukuran & Analisis
P. Kuat Cahaya Lampu Pijar
P. Kuat Cahaya Lampu Neon/Fluorocent
P. Kuat Cahaya Lampu Halogen
P. Kuat Cahaya Lampu Mercuri
Instalasi Listrik
Instalasi Penerangan Saklar Tunggal
Instalasi Penerangan Saklar Tukar/Hotel
Instalasi Penerangan Saklar Ganda
Instalasi Penerangan Panggung
Instalasi Daya Motor Induksi DOL
Instalasi Daya Motor Induksi FR
Instalasi Meter 1 Fasa
Instalasi Meter 3 Fasa
Pengukuran Tahanan Tanah
Pengukuran Tahanan Gedung
Pengukuran Tahanan Tiang dan Menara
Konfigurasi Pengetanahan
Pengukuran Tahanan Isolasi TR
Pengukuran Tahanan Isolasi TM
Simulasi Metode Titik
Simulasi Metode Lumen

Simulasi Instalasi Penerangan Rumah
Simulasi Instalasi Penerangan Gedung
Simulasi Instalasi Daya Motor
Simulasi Instalasi Daya Gedung
Simulasi Instalasi Daya Pabrik

7. Computer Application in Power System Analysis Practices (Praktikum Aplikasi Komputer dalam Sistem Tenaga)
Perhitungan Aliran Daya
Metode Gauss Z bus
Metode Gauss Y bus
Metode Gauss Z loop
Metode Gauss Y loop
Metode Gauss Seidel
Metode Newton Raphson
Metode Fast De Couple
Metode Topologi Radial
Metode Fast De Couple Radial
Metode Matrik Jarang (Spare Matrices)

Perhitungan Hubung Singkat
Hubung Singkat 1 Fasa ke Tanah
Hubung Singkat 2 Fasa ke Tanah
Hubung Singkat 3 Fasa ke Tanah
Hubung Singkat 2 Fasa
Hubung Singkat 3 Fasa
Hubung Singkat Seri OLO
Hubung Singkat Seri TLO
Hubung Singkat Seri-Paralel

Perhitungan Stabilitas
Stabilitas Single Mesin
Stabilitas Multi Mesin

Perhitungan Operasi Ekonomis
Metode Linier Programming
Metode Iterasi Lambda
Metode Dinamik Programming
Metode Algoritma Genetik

Perencanaan Kebutuhan Energi

Aplikasi EMTP
Aplikasi ETAP
Aplikasi Matlab Power Toolbox
Aplikasi EDSA
Aplikasi LEAP
Analisis Contingency

Advance Laboratory Practice Activities

Laboratory Research

Picture of Survey for Electrical Research

For the past few years since Electrical Energy Conversion and Power System Laboratory was established, research conducted in laboratory are in main the field of:
· Power System Analysis and Design
· Electrical Machine
· High Voltage Engineering
Based on the main field above, many researches have been conducted in the topics of:
1. Energy conversion and power system analysis
2. Power electronics
3. Control and drive for electrical machines application
4. Optimal engineering and economics review in the use of energy and electricity
5. Electrical Installation and Illumination
6. Lighting protection
7. Fault analysis and protection in power system
8. Electronics, control, automation process and
9. Instrumentation and basic research in electrical engineering
In recent years, the topics of research in laboratory have been develop and wider in line with science and technology development in electrical engineering, computer and information technology. The new topics of research are emerged as new ideas come to make a better electrical system in the development of a country. Those topics are:
1. Power Quality and Harmonics
2. Electrical transportation system
3. Artificial Intelligent Application in Power system
4. Health and Safety in Electrical Work
5. Demand Forecasting and tariffs
6. Regulation and policy for electrical utilization
7. Electricity supply industry deregulation and restructuring
8. Electric Power Economics
9. Electrical Stability, Reliability and Contingency
10. Electric generation for renewable resources
11. Non conventional generation
12. Condition monitoring of electrical power system
13. Environmental Impact of High Voltage or Electromagnetic Interference
14. Design of management information system for electrical customer, retail and distribution
15. High Voltage Apparatus and Insulation

Collaborative researches have been done with many institutions from government and private sectors. Several of them are with:
· PT. PLN (Persero)
· PT. Indonesia Power
· Udiklat PT. PLN
· Departemen Kesehatan
· Dinas Tenaga Kerja, Pertambangan, Tatakota
· Pertamina
· Perusahaan Swasta (OMRON, Scheinder, Caltex, etc)

Training & Services
Scope of Work
The scopes of works provided by laboratory services are intended to solve the problem and demand of society. They are:
1. Consultation services and design construction in various kind of needs in electricity, the use of energy, process control and automation, power instrumentation, programming and information system of electric power.
2. Workshop, Training and course for improving human resource in the office, government institution, company, factory or power plant
3. Developing electrical education, curriculum and syllabi for university or educational institution
4. Module and Simulation for Electro-Laboratory works and practices
5. Research/Collaboration Work with government or non government institution

Qualified and professionalism staff in qualification of Philosophy Doctor, Masters, Specialist and Experienced engineers have become the great and excellence support for giving the best lecture and developing research as well as training and services in the field of electrical power engineering.

Various topics of workshop, training and seminar and also consultative or collaborative works are presented below:

Topik: Teknik Tegangan Tinggi
1. Teknik Tegangan Tinggi; Pembangkitan, Pengujian dan Pengukuran
2. Isolasi dan Peralatan Tegangan Tinggi
3. Proteksi Petir dan Gelombang Surja
4. Pentanahan untuk Sistem Tenaga dan Industri
5. Pengaruh Medan Listrik terhadap Keselamatan Manusia

Topik: Mesin-Mesin Listrik & Elektronika Daya
1. Generator; Prinsip, Operasi, Pemeliharaan dan Troubleshooting
2. Motor Listrik AC/DC; Prinsip, Operasi, Pemeliharaan dan Trouble shooting
3. Pemilihan, Pengaturan dan Pengendalian Motor Listrik
4. Automatic Voltage Regulator (AVR)
5. Pengaturan Motor Listrik Dengan Elektronika Daya dan Otomasi Mesin Listrik; Prinsip, Operasi, Pemeliharaan dan Trouble shooting
6. Transformator Daya; Prinsip, Operasi, Pemeliharaan dan Trouble shooting
7. Aplikasi Kecerdasan Buatan dalam Mesin-Mesin Listrik
8. Elektronika Daya – Saklar-Saklar Semikonductor; Prinsip, Operasi, Pemeliharaan dan Trouble shooting
9. Konverter Elektronika Daya (AC-DC, DC-DC, DC-AC, AC-AC)
10. Pengaturan dengan Elektronika Daya (Electric Drive)
11. Harmonisa dalam Sistem Tenaga dan Filter
12. Uninterupted Power Supplies (UPS)
13. Pengasutan, Pengendalian dan Pengereman Motor Listrik
14. Traksi Listrik

Topik: Analisis Sistem Tenaga
1. Pembangkitan Sistem Tenaga Listrik dan Operasi Ekonomis
2. Distribusi Sistem Tenaga Listrik
3. Analisis Gangguan dan Hubung Singkat dalam Sistem Tenaga
4. Transmisi Sistem Tenaga Listrik
5. Peningkatan Faktor Daya
6. Manajemen Energi Listrik dalam Bangunan
7. Dasar Teknik Tenaga Listrik dan Konversi Energi
8. Analisis Kualitas Sistem Tenaga
9. Analisis Keandalan dalam Sistem Tenaga Listrik
10. Analisis Kestabilan dalam Sistem Tenaga Listrik
11. Gardu Induk ; Desain, Operasi dan Pemeliharaan
12. Aplikasi Kecerdasan Buatan dalam Sistem Tenaga Listrik
13. Instalasi dan Perhitungan Fasilitas Penerangan
14. Instalasi Tenaga Listrik Industri dan Perumahan
15. Instrumentasi dan Pengukuran Listrik
16. Proteksi Sistem Tenaga Listrik; Prinsip Pengaturan dan Koordinasi
17. Pembangkit Tenaga Listrik Mikrohidro (PLTM)
18. Teknologi Sistem Distribusi
19. Manajemen Pemeliharaan Jaring Distribusi
20. Analisis Rugi-rugi Jaringan
21. Pengerjaan Dalam Keadaan Bertegangan
22. Pemeliharaan Gardu Induk dan Distribusi
23. Teknik Wiring Diagram
24. Relai dan Proteksis Sistem Tenaga Listrik Dasar
25. Relai dan Proteksi Tenaga Listrik Lanjut
26. Supervisi Relai Proteksi Distribusi
27. Supervisi Relai Proteksi Transmisi dan Gardu Induk
28. Lightning Installation
29. Power Installation
30. Grounding Measurement
31. Computer Programming for Installation
32. Computer programming for analysis and calculation of:
· Map of Short circuit
· Power flow
· Energy management
· Transient Stability
· Economics operation
· Motors respond during fault
· Machine performance
33. Studi perencanaan master plan and perundang-undangan kelistrikan (RUKD)

Topik: Automation System
Programmable Logical Control – PLC
1. Basics Application (Lamp, LED, Simple Relay)
2. Advanced Application
3. Sequence Motor Control
4. Belt Conveyor
5. Mixer Tank
6. Starting & Control for various electric machines


Training & Workshop Activities

Contact Us
We are always welcome for giving satisfaction in any services and collaboration in order to give the excellence solution in the area of electrical engineering.

Contact Person:
Ir. Abdul Syakur, M.Eng. (Laboratory Staff)
Laboratorium Konversi Energi Listrik & Sistem Tenaga
Jurusan Teknik Elektro
Fakultas Teknik Universitas Diponegoro
Jl.Prof.H. Sudarto, S.H. No.1 Tembalang Semarang
Telephone: 62-24-7460057 Facsimile: 62-24-7460057


Phone: 62-24-7460057
Fax: 62-24-7460057

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