## Accepted papers

### E&PE - Electrical & Power Engineering

**6 Rei Equivalents With Synchrophasor Measurements**

Mihai Gavrilas, Gilda Gavrilas, Ovidiu Ivanov *(“Gheorghe Asachi” Technical University of Iasi, Romania)*

**13 Calculation Program for the Theoretical Study of the Performances of the Steam Condenser Of The 330 Mw Turbine**

Ovidiu Saftoiu *(S.C. Termoserv S.A. ROVINARI, Romania)*, Mihai Nagi *(Polytechnical University of Timisoara, Romania)*

**24 Day-Ahead Load Forecasting Using Exponential Smoothing**

Radu Bindiu, Mircea Chindris, Gabriel Vasile Pop *(Technical University of Cluj – Napoca, Romania)*

**25 Power Capability in Low Voltage DC Distribution Systems**

Calin-Octavian Gecan, Mircea Chindris, Radu Bindiu *(Technical University of Cluj – Napoca, Romania)*

**26 Economical Implications Regarding the Operation of Power Transformers in Harmonic Polluted Power Systems**

Gabriel Vasile Pop, Mircea Chindris, Calin Octavian Gecan *(Technical University of Cluj – Napoca, Romania)*

**35 Some Aspects of the Distortion State in Electric Energy Repartition and Distribution Public Networks**

Gheorghe Georgescu, Bogdan Neagu *(“Gheorghe Asachi” Technical University of Iasi, Romania)*

**36 Posibilities of Optimal Power Flow in Public Repartition and Distribution Systems of Electric Energy**

Gheorghe Georgescu, Bogdan Neagu *(“Gheorghe Asachi” Technical University of Iasi, Romania)*

**57 Constructive and Functional Improvements of Electromagnetic Reciprocating Machines**

Gh. Remus Codoiu *(“Petru Maior” University of Târgu Mureş, Romania)*

**58 Modeling of Renewable Hybrid Energy Sources**

Cristian Dragos Dumitru, Adrian Gligor *(“Petru Maior” University of Târgu Mureş, Romania)*

**60 New Polarized Solenoid Type Electromagnetic Hammers**

Gh. Remus Codoiu *(“Petru Maior” University of Târgu Mureş, Romania)*

**61 Power Quality Disturbance and Power Flow Analysis in a Hybrid Renewable Energy System Using Matlab**

Adrian Gligor, Cristian Dragos Dumitru, Horatiu Grif *(“Petru Maior” University of Târgu Mureş, Romania)*

**72 The Power Quality Impact of Electronic Equipment Used in Office Buildings**

Horatiu-Calin Albu, Florin Pop *(Technical University of Cluj-Napoca, Romania)*

**78 Analysis of Saturation Effects on the Operation of Magnetic-Controlled Switcher Type FCL**

Faramarz Faghihi, Homa Arab *(Islamic Azad University South Tehran Branch Young Researchers Club, Iran)*

**79 A Multifunctional Two-Coordinate Drive System with Hybrid Stepping Motors**

Mikho Mikhov, Panayot Nakov, Georgi Mitrinski, Mladen Stoev *(Technical University of Sofia, Bulgaria)*

**82 Reliability Improvement Methods and Their Effects on Voltage Sag Incidence Rate in Distribution Networks**

Hajar Abdi *(Hormozgan Regional Company, Iran), Alireza Ghods (University of Science & Technology, Iran)*, Azad Amiry *(University of Amirkabir, Iran)*

**84 Improved WLS Estimation in Large Systems Using Genetic Algorithms**

Ovidiu Ivanov, Mihai Gavrilas *(“Gheorghe Asachi” Technical University of Iasi, Romania)*

**102 Four Quadrant Chopper Drive with Specialized**

Alexandru Morar *(“Petru Maior” University of Târgu Mureş, Romania)*

**104 Bipolar Hybrid Stepper Motor Control and Drive**

Zsolt Albert Barabas Abbott Laboratories S.A. , Bucuresti, Romania, Alexandru Morar *(“Petru Maior” University of Târgu Mureş, Romania)*

**105 Microstepping Test Board with LMD18245 Specialized Circuit for Bipolar Stepper Motor**

Zsolt Albert Barabas *(Abbott Laboratories S.A., Bucuresti, Romania)*, Alexandru Morar *(“Petru Maior” University of Târgu Mureş, Romania)*

**107 Four Phases Driver for Stepper Motor Control**

Ionut Silviu Luca *(S.C. Alprod S.R.L., Târgu – Mureş, Romania)*, Alexandru Morar *(“Petru Maior” University of Târgu Mureş, Romania)*

**123 Power Distribution Networks’ Graph Optimization**

Dorin Sarchiz, Vasile Dub *(“Petru Maior” University of Târgu Mureş, Romania)*

**125 Middle Voltage Distribution Systems and Scale-Free Networks**

Vasile Dub, Sarchiz Dorin *(“Petru Maior” University of Târgu Mureş, Romania)*

**126 The Optimization of Reliability Centered Maintenance (RCM) Based on Renewal Processes**

Dorin Sarchiz, Daniel Bucur, Dorin Bică

*(“Petru Maior” University of Târgu Mureş, Romania)*

**127 Optimization of Reliability Electric Supply of a Hospital**

Daniel Bucur, Dorin Sarchiz *(“Petru Maior” University of Târgu Mureş, Romania)*

**128 Current Trends and Challenges in Power Engineering Education**

Dorin Bica, Daniel Bucur, Arina Modrea *(“Petru Maior” University of Târgu Mureş, Romania)*

**148 Determination of the Power Transformer Efficiency Monitoring the Electrical Insulation Parameters**

Adrian Munteanu, Lucian Iulian *(Transilvania University of Brasov, Romania)*