Mohamed Safieldeen Mohamed Daffallah, Senior Protection Engineer

Mohamed Safieldeen Mohamed Daffallah

Senior Protection Engineer

Internation Energy & Investment

Location
Oman - Muscat
Education
Master's degree, Power Engineering
Experience
12 years, 9 Months

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Work Experience

Total years of experience :12 years, 9 Months

Senior Protection Engineer at Internation Energy & Investment
  • Oman - Muscat
  • My current job since July 2019

# Fault level calculation of substations at different voltage levels up to two hundred twenty kV.
# Sizing calculation of CTs, CBs, DC system, etc…
# CT/VT calculations of the electrical network
# Relay setting calculations for various protection schemes, which include distance, differential, etc.
# Design of protection schemes for new panels as well as modification in existing, conferring to the variations in protection scenarios.
# Analyze on the EHV interruptions, research on the protection malapropisms andrectifications as necessary.
# Retrofitting of a variety of modern Numerical Relays to old panels with necessary scheme changes and wirings.
# Setting of Numeric, Static and Electromechanical relays
# Adjustments on electromechanical relay elements and replacement (repair) ofcomponents in static relays to fine tune the relay to required functionality
# Implementing the Testing and Commissioning Program for the Electrical discipline up to two hundred twentyKV Grid Stations
# Work with project team to fully develop system integration of protection, control, and monitoring systems
# Perform basic calculations such as relay burden, voltage drop, and short circuit calculations
# Perform relay coordination studies and prepare relay settings
# Create/modify design documents and drawings for a project, including one-lines, three-lines, control schematics and wiring diagrams, relay panel arrangements and specifications, conduit and cable sizing/routing, and generating bills of material
# Design auxiliary AC and DC power systems
# Develop SCADA system and communications interfaces
# Knowledge of protection principles and practices for transmission lines, distribution feeders, and major substation equipment
# Strong knowledge of AC/DC fundamentals, including understanding of three-phase power systems
# Knowledge of design documents and drawings necessary to complete a substation protection and control design project
# Experience in Preparation of Testing and commissioning procedures/ Method of Statements
# Testing and Commissioning of Switchgears Relay: 132 kVGIS / 66 kVGIS / 11 k V AIS and LV21) Transformers: 132 / 33 k V, 33 / 11 kV, 33 /11 kV rating up to one hundred twenty-five MVA
# Experienced in Protection System: Feeder, Transformer and Cable Differential Protections
# Testing & commissioning of O/C & E/F, voltage and frequency relays, Testing & commissioning of all distribution protection schemes
# Testing and Commissioning of LV Circuit Breakers
# Complete Study/review of Vendor drawings and taking approval from the Client
# Preparation of Design calculation for the one hundred thirty-two KV, 33 kV and LV cables
# Relay setting calculation with the upstream end substations
# Relay programming, Disturbance record analysis and fault finding carried out
# one hundred thirty-two KV and 33 Kv Busbar stability and Transformer stability tests
# Complete Pre and Final commissioning of Substations upto one hundred thirty-two / 33 k V Grid Stations
# Preparation of testing reports and as built drawings

Protection Engineer at SEDC
  • Sudan - Khartoum
  • August 2011 to June 2019

# Fault level calculation of substations at different voltage levels up to two hundred twenty kV.
# Sizing calculation of CTs, CBs, DC system, etc…
# CT/VT calculations of the electrical network
# Relay setting calculations for various protection schemes, which include distance, differential, etc.
# Design of protection schemes for new panels as well as modification in existing, conferring to the variations in protection scenarios.
# Analyze on the EHV interruptions, research on the protection malapropisms andrectifications as necessary.
# Retrofitting of a variety of modern Numerical Relays to old panels with necessary scheme changes and wirings.
# Setting of Numeric, Static and Electromechanical relays
# Adjustments on electromechanical relay elements and replacement (repair) ofcomponents in static relays to fine tune the relay to required functionality
# Implementing the Testing and Commissioning Program for the Electrical discipline up to two hundred twentyKV Grid Stations
# Work with project team to fully develop system integration of protection, control, and monitoring systems
# Perform basic calculations such as relay burden, voltage drop, and short circuit calculations
# Perform relay coordination studies and prepare relay settings
# Create/modify design documents and drawings for a project, including one-lines, three-lines, control schematics and wiring diagrams, relay panel arrangements and specifications, conduit and cable sizing/routing, and generating bills of material
# Design auxiliary AC and DC power systems
# Develop SCADA system and communications interfaces
# Knowledge of protection principles and practices for transmission lines, distribution feeders, and major substation equipment
# Strong knowledge of AC/DC fundamentals, including understanding of three-phase power systems
# Knowledge of design documents and drawings necessary to complete a substation protection and control design project
# Experience in Preparation of Testing and commissioning procedures/ Method of Statements
# Testing and Commissioning of Switchgears Relay: 132 kVGIS / 66 kVGIS / 11 k V AIS and LV21) Transformers: 132 / 33 k V, 33 / 11 kV, 33 /11 kV rating up to one hundred twenty-five MVA
# Experienced in Protection System: Feeder, Transformer and Cable Differential Protections
# Testing & commissioning of O/C & E/F, voltage and frequency relays, Testing & commissioning of all distribution protection schemes
# Testing and Commissioning of LV Circuit Breakers
# Complete Study/review of Vendor drawings and taking approval from the Client
# Preparation of Design calculation for the one hundred thirty-two KV, 33 kV and LV cables
# Relay setting calculation with the upstream end substations
# Relay programming, Disturbance record analysis and fault finding carried out
# one hundred thirty-two KV and 33 Kv Busbar stability and Transformer stability tests
# Complete Pre and Final commissioning of Substations upto one hundred thirty-two / 33 k V Grid Stations
# Preparation of testing reports and as built drawings

Education

Master's degree, Power Engineering
  • at University Of Khartoum
  • October 2018

Msc Electrical Power System

Master's degree, Project Management
  • at Sudan International Univercity
  • October 2015

Master's degree specialize in project management based on PMI

Bachelor's degree, Electrical & Electronics Engineer
  • at Omdurman Islamic Univercity
  • July 2011

Power Engineer

Specialties & Skills

Electrical Testing
Electrical Maintenance
Electrical Engineer
Power System Protection
Electrical Installation
Communication Skills
Work in team
Leadership skills
Innovative and initiator
RMU Testing
Protection Function Configuration
Relays Testing
Fault calculation
Transformer Testing
CT & VT Calculation & Testing
Differential Transformer Testing

Languages

English
Expert
Arabic
Native Speaker

Memberships

DCRP Oman
  • Protection Engineer Level 4
  • July 2019

Training and Certifications

IOSH (Certificate)
Date Attended:
November 2015
Valid Until:
January 9999

Hobbies

  • Reading