Electrical Engineering

What is "Electrical Engineering"? Electrical engineering is concerned with research, design, development, manufacture, installation, operation, maintenance and management of equipment, plant and systems within the electrical, electronic, communication and computer systems areas.

These activities can apply to electricity generation, transmission, distribution, electrical installations in buildings and on industrial sites, electrical equipment manufacture, instrumentation and control systems applications in industry, communications networks, electronic plant and equipment, and also the integration and control of computer systems.

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Our Engineering Services

Protech Power employs a number of specialist Engineers with broad experience covering the following Electrical infrastructure

Power Generation / Generators
HV Substations
Power & Distribution Transformers
Protection systems
Overhead power lines to 66kV
Power System Engineering studies
Project Management of large electrical installations and systems design

Power Generation Plant Commissioning
Check schematics and compliance with Standards
Pre-commissioning testing
Set up AVRs
Set up governors
Program and test Protection relays
Test mechanical and electrical protection schemes
Perform safety tests
Perform system response tests as per NEC requirements
Fine tune to ensure compliance of system performance criteria

Protection System Audits
Investigate existing protection schemes
Report on effectiveness of scheme
Suggest improvements if required
Evaluate the depth of protection in relation to value of plant
Check settings provide adequate protection for normal plant operation

Protection System Commissioning
Check supplied equipment against specification
Enter settings and functions
Check the logic
Conduct functional checks
CT and VT tests
Secondary Injection tests
Scheme checks, inter-trips, blocking etc
Total scheme checks with primary injection

Protection System Testing
Using the latest state-of-the-art testing equipment, our qualified engineers can ensure high levels of accuracy and repeatability.
Our services include:
• Protection relay statutory testing, calibration and repair
• Primary and secondary injection testing
• Upgrades of protection systems, and
• Fault studies, protection co-ordination studies and protection system audits.

Power System Analysis
Protech Power provides comprehensive studies of electrical systems using the latest power system analysis software, allowing us to investigate:
• load flow
• AC/DC short circuit
• Motor starting load flow
• Protective device co-ordination
• Motor torque
• Cable/equipment sizing, and
• harmonics and power factor correction.

High Voltage Auditing
Protech Power has government accreditation to carry out high voltage auditing. Our qualified engineers can audit your electrical system, test it with the latest equipment and supply a comprehensive written report.

Design
We can design electrical systems for Greenfield sites or upgrade existing sites.
Design protection systems for:
Transmission lines
transformers
generators
Industrial plant
Substations
Earth Grid
Calculate protection settings
Devise and implement protection logic schemes