Service — Engineering
Engineering
Excellence
for Critical
Infrastructure
From precise power system calculations to SCADA automation — supporting commissioning of data centers and substations with safety, reliability, and compliance.
0.4–400 kV
Voltage range
IEC / IEEE
Standards expertise
SCADA
Automation systems
IEC 61850
Protocol
Power system studies underpin every commissioning project we deliver — load flow, short circuit calculations, protection coordination, and arc flash analysis across all voltage levels (0.4 kV to 400 kV).
Our engineers ensure optimized performance, safety, and compliance with international standards (IEC, IEEE, ANSI) through comprehensive analysis and design.
End-to-End Engineering
From calculations to implementation
Industry Standards
IEC, IEEE, Modbus, DNP3 expertise
Expert Team
Deep experience in SCADA and automation
Services
Our Engineering Services
Engineering Calculations
Precision and reliability start with calculations that inform robust design and system performance.
- Load Flow Analysis for power distribution efficiency
- Short Circuit Studies for system stability
- Relay Coordination for fault-clearing response
- Arc Flash Studies for safety analysis
- Harmonic Analysis for power quality
Protection & Control Systems
We configure and validate protection relays to safeguard your systems, ensuring maximum uptime and safety.
- Relay Configuration (ABB, Siemens, Schneider, SEL)
- Overcurrent, Distance, and Differential Protection
- Testing and Validation of Protection Schemes
- IEC 61850 Standard Compliance
Substation Automation Systems
Intelligent automation systems enhance grid reliability, supervision, and control for substations of all sizes.
- SCADA and RTU Integration
- IEC 61850 Compliant Solutions
- HMI Configuration for monitoring
- Protection System Integration
SCADA and RTU Applications
Seamless integration of SCADA systems and RTUs ensures centralized control and system-wide visibility.
- SCADA System Configuration
- RTU Programming and Testing
- Sensor and Equipment Integration
- Protocol Compliance (Modbus, DNP3, IEC)
Power Quality Analysis
Comprehensive power quality assessment and solutions to ensure optimal system performance and equipment protection.
- Harmonic analysis and mitigation strategies
- Voltage sag and swell analysis
- Power factor correction solutions
- Flicker and transient analysis
- Custom power quality monitoring systems
Communication Protocols
We ensure smooth communication between all critical systems through reliable and industry-compliant protocols.
- IEC 61850 Implementation
- Modbus TCP/IP and RTU
- DNP3 for SCADA
- MMS and GOOSE Protocols
Automation for Supervision
Automated solutions for supervision and control ensure optimized operations and maximum efficiency.
- Real-Time Supervision Systems
- Advanced Automation Logic
- Alarm Management
- Smart Grid Integration
Design Platform
Engineering
Base
Our engineering team uses Aucotec Engineering Base for comprehensive electrical design — ensuring consistency and quality across all project deliverables.
Substation Layout Design — Cable routing and equipment placement
Protection Schematics — Single-line diagrams and relay configurations
Comprehensive Design Capabilities
Sectors
Industries We Serve
Substations
Expert engineering for high-voltage and medium-voltage substations, ensuring reliable power distribution and grid stability.
- Protection and control system design
- SCADA integration and automation
- Grid compliance and standards
- Reliability and safety optimization
Data Centers
Engineering and commissioning support for mission-critical data center infrastructure, from power distribution to cooling systems.
- Tier I–IV compliant designs
- Redundant power systems
- Energy efficiency optimization
- Critical systems monitoring
Power Plants
Advanced engineering services for power generation facilities, focusing on efficiency, reliability, and environmental compliance.
- Generation control systems
- Grid interconnection
- Performance monitoring
- Environmental compliance
Industrial Facilities
Engineering and commissioning support for industrial power systems, ensuring reliable operation and energy efficiency.
- Power quality analysis
- Process automation
- Energy management systems
- Safety and compliance
Our Toolset
Tools and Expertise
We leverage industry-leading tools and software to ensure precision, reliability, and efficiency in protection & control, substation automation, and SCADA/RTU integration.
We are highly skilled in ABB's advanced tools for protection and control systems:
PCM600
- Comprehensive configuration for ABB Relion protection and control relays
- IEC 61850-based systems and relay settings management
- Advanced testing and commissioning capabilities
- Integrated disturbance handling
Our expertise extends to Hitachi Energy's comprehensive suite of tools for automation and control:
PCM600
- Protection and control IED management
- IEC 61850 engineering and configuration
- Signal matrix and logic editor
- Disturbance record handling
MicroSCADA X
- State-of-the-art SCADA platform for real-time monitoring and control
- Seamless integration with IEC 61850, Modbus, and DNP3
- Advanced visualization and control capabilities
- Comprehensive alarm and event management
RTU560 Series
- Robust Remote Terminal Units for data acquisition
- Multi-protocol support for flexible integration
- Advanced cyber security features
- Scalable architecture for various applications
We are experienced with Končar's advanced SCADA solutions for power system automation:
PROZA Station
- Advanced SCADA system for power system automation
- Real-time monitoring and control capabilities
- Support for IEC 61850, IEC 60870-5-101/104
- Integrated alarm and event management
- Customizable HMI for process visualization
CopaData
We leverage CopaData's powerful SCADA platform for comprehensive industrial automation and data visualization:
Zenon SCADA
- Advanced SCADA platform for real-time monitoring and control
- Multi-platform support (Windows, Linux, Web)
- Native support for 300+ communication protocols
- Redundancy and high availability features
- Energy management and reporting capabilities
- FDA 21 CFR Part 11 compliance for pharmaceutical applications
- Integrated historian and trending functions
- Mobile and web-based visualization
ELSPEC
We utilize ELSPEC's advanced power quality analyzers and solutions for comprehensive power system analysis and monitoring:
Power Quality Analyzers
- Advanced power quality monitoring and analysis
- Harmonic and interharmonic measurement
- Voltage sag, swell, and interruption detection
- Flicker and unbalance analysis
- EN 50160 and IEEE 519 compliance reporting
- Real-time data logging and trending
- Remote monitoring capabilities
Power Quality Solutions
- Custom power quality mitigation systems
- Harmonic filter design and implementation
- Power factor correction solutions
- Voltage regulation systems
- Grid compliance and power quality consulting
We are proficient in Siemens platforms, providing flexible and advanced solutions for protection and control systems:
DIGSI 4 and DIGSI 5
- Configuration software for SIPROTEC relays
- Comprehensive relay testing and fault analysis
- IEC 61850-based automation integration
- Modern workflows for protection configurations
SICAM Series
- RTUs for grid automation and control
- Advanced communication and monitoring capabilities
Autodesk
We work in Autodesk's industry-standard CAD and BIM platforms for design, drafting, and coordinated 3D modeling of electrical infrastructure:
AutoCAD
- 2D drafting and detailed electrical documentation
- Single-line diagrams, layouts, and as-built drawings
- DWG-based collaboration with multidisciplinary teams
- Standardized title blocks, layers, and CAD libraries
Revit
- BIM-based 3D modeling of electrical systems
- Coordinated models across electrical, structural, and MEP
- Clash detection and spatial coordination
- Data-rich families with automated schedules and BOMs
Specialized Tools
Engineering Design & Calculations
Aucotec Engineering Base
A leading platform for integrated engineering design, documentation, and project management.
primtech
BIM-compliant 3D substation design and engineering suite by entegra — from single-line to physical layout, digital twin visualization, and data-driven documentation across the substation lifecycle.
ETAP
Comprehensive electrical system modeling and analysis for arc flash studies, harmonic analysis, and transient stability.
BIM Design & Engineering
Engineering on
a single model
Our engineering is model-based. Power system studies, protection schemes, and documentation all reference one coordinated BIM model — reducing rework, catching conflicts early, and producing a data-rich digital twin.
Model-Based Engineering
Studies and schematics tied to a live, coordinated 3D model.
Interdisciplinary Coordination
Electrical aligned with structural, civil, and MEP from day one.
Clash Detection
Spatial conflicts resolved in the model, not on site.
Digital Twin Handover
Accurate as-built data for operations and lifecycle management.
Get in touch
Let's talk
about your project.
Our team of experts is ready to help with your data center and substation commissioning needs.
- Phone
- +385 (1) 3815 145
- info@terrawatt.eu
- Office
- Radnička cesta 1A, Business park 1A, 10000 Zagreb, Croatia