INDUSTRY EXPERTISE
PRIMARY INJECTION TESTING
Okusha Engineering only makes use of the best equipment for primary injection testing, the Omicron CPC100. The CPC 100 can perform various tests on:
- Current Transformers
- Voltage Transformers
- Power transformers
- Power lines
- High Voltage cables
- Grounding systems
- Rotating machines
- Switchgear and circuit breakers
- IEC 61850 installations
- Protection relays
SECONDARY INJECTION TESTING
The CMC 356 is a universal solution for testing all types and generations of protection relays.
Its versatility makes it suitable for both modern digital and older electromechanical systems, streamlining relay testing across various applications.
Equipped with six powerful current sources and a highly dynamic output range, it can handle high-burden electromechanical relays with demanding power requirements—ensuring accurate and reliable test results in any environment.
ARC FLASH ANALYSIS GRADING & SETTINGS
By using DIgSILENT PowerFactory, Okusha Engineering can accurately model any power system.
This detailed model serves as the foundation for fault level calculations, protection grading and settings, as well as arc flash analysis.
The data obtained from these studies allows our engineers to design safer, more stable, and optimized power systems—ensuring reliability, compliance, and improved system performance.
Endless Applications
POWER TRANSFORMERS
- Transformer turns ratio test
- Winding resistance test
- Tap Changer contact resistance test
- Short circuit impedance test
- Transformer demagnetization
- Tan Delta Test
- Sweep Frequency Response
GROUNDING SYSTEMS
- Ground Impedances
- Step and touch voltages
CIRCUIT BREAKERS
- Contact resistance
- Opening and Closing Speed test
- Opening and Closing Time
- Motor charging current and time
- Voltage withstand test up to 55kV AC and 70kV DC (Pressure Test)
PANEL DESIGN AND CONSTRUCTION
Okusha Engineers and Technicians can design and build any Protection panel, from your basic feeder protection needs to panels with the latest in communication technology to ensure plant status is always known in real time.
LOAD FLOW AND HARMONIC STUDIES
Okusha Engineering has the experience, qualifications, and software to conduct Load flow and Harmonic studies on all networks
CURRENT TRANSFORMERS
- Ration, burden and polarity
- Phase and magnitude error
- Excitation curve
- Secondary burden
- Dielectric withstand voltage (2kV AC)
- CT circuit continuity
LINES AND CABLES
- Impedance (K-factor)
- Transformer coupling
- Cable requirement calculations
CAPACITOR BANKS
- Services
- Testing
ARC FLASH ANALYSIS AND POWER SYSTEM MODELLING
By making use of the latest DIGSILENT modelling software, our Engineers can calculate the incident energy and flow at all accessible points. This data can then be used to engineer the power system to ensure the lowest possible arc flash rating, enabling us to recommend the correct Arc Rated overalls and make and apply Arc flash warning labels
IPP GRID IMPACT STUDIES
Using the latest Digsilent modelling software, qualifications, and experience Okusha Engineering performs IPP Grid Impact studies on independent power producers.
VOLTAGE TRANSFORMERS
- Ration, burden and polarity
- Phase and magnitude error
- Excitation curve
- Secondary burden
- Dielectric withstand voltage (2kV AC)
- VT circuit continuity
TRANSDUCERS
By making use of the Omicron CMC356 transducer-specific software, Okusha Engineering is able to test the accuracy of transducers, ensuring the reliability of data fed to PLCs
RELAY INJECTIONS
- Overcurrent
- Earth fault
- Differential Protection
- Restricted Earth fault
- Harmonics
- Generator Synchronizer tests
SETTINGS AND GRADING
Okusha Engineering has the experience, qualifications, and software to calculate the settings and perform settings audits of any plant accurately to ensure reliable supply and protection of equipment
ARC FLASH AND PROTECTION SETTINGS TRAINING
- Offer arc flash training after Arc Flash Risk Analysis & calculations.
- Offer protection and settings training after Settings calculations and audits
MAJOR PROJECTS COMPLETED
