Saudi Electricity Company Case Study

Table of Contents
Introduction 1
1. Saudi Electricity Company (SEC) 4
1.1Foundation of Saudi Electricity Company 5 1.2 Historical Overview of Saudi Electricity Company (SEC) 6
1.3 SEC Organization Restructure 2
2. SEC- Southern Operation Area (SOA) 1
2.1 SEC-SOA Generation 2
2.2 SEC-SOA Transmission 2
2.3 SEC-SOA Distribution 2
3. My Work 4
4. System Maintenance and Operation Division 1
4.1 Maintenance Process 2
4.2 Types of Maintenance 5
4.2.1 Time Based Maintenance 3
4.2.2 Preventive Maintenance 3
4.3 Used Technologies 5
4.3.1 Partial Discharge (PD) 3
4.3.2 Infrared Cameras (IR) 3
4.4 Electric Power Efficiency Indicators 5
4.4.1 SAIFI 6
4.4.2 SAIDI 6
4.5 Site Visit 5
5. Communication and SCADA Division 4
5.1 Communication Systems 5
5.1.1 Main Distribution Frame (MDF) 6
5.1.2 Data and Voice Multiplexer (DVM) 6
5.1.3

Asir CPS with a capacity of 649 MW.
b. Al-Baha CPS with a capacity of 66.5 MW.
c. Bisha CPS with a capacity of 349 MW.
d. Jazan CPS with a capacity of 1,323 MW.
e. Tihama CPS with a capacity of 722 MW.
f. Najran CPS with a capacity of 347.5 MW.
As a result, SEC-SOA has a total capacity of 3,457 MW, and interconnected with each other through their 132 kV double circuit transmission lines as seen in figure (2.2). Figure 1 SEC-SOA interconnection system
2.2 SEC-SOA Transmission
Transmission department is responsible for transmitting the electrical power from the generation center (e.g. CPS) to the distribution center through either overhead lines or underground cables. In addition, it is responsible for step-up transformer (13.8 kV/33/132/380 kV) substations and step-down transformer (380/132/33 kV) substations. That means, this department is responsible for high voltage level (380 kV, 132 kV, 33 kV).
2.3 SEC-SOA Distribution
Distribution department is responsible for the electrical power from step-down transformer (33/13.8 kV) substations to the consumers. That means, this department is responsible for low voltage