أيمن يحيى أحمد

• Testing protection Relays (Siemens, SEL, GE, ABB, MiCom).
- Line Protection, Transformer Protection, Busbar and Capacitor Protection Relays.
- OC/EF, UV/UF load shedding Relays.
• Testing & Commissioning for MV, HV and Extra HV Switchgears.
- MCB, MCCB, Auxiliary Relays, Timers and Contactors Tests.
- CT, PT, Circuit Breaker and Meters Tests.
• Schemes Functions tests, check and interfacing for Protection & Control Panels.
• Stability tests, Primary and Secondary Injection for 110kV busbar and Transformers, Testing MV Cables.

• Preparing Full Base Design for HV and MV substations.
- Operational Single Line Diagram.
- Protection Logic Diagram & Relaying and Metering OLD.
- CT/PT Sizing Calculations.
- SAS Point list (Alarms, Indications, Commands, Fault Recorder, SOE).
• Full Substation Panels interfacing - Cable schedules and terminations.
• Coordination with Contractors.