Service — Mobile Testing
Mobile
Testing
Services
Fully equipped mobile testing capabilities for comprehensive primary and secondary tests across all voltage levels — from 0.4 kV to 400 kV.
0.4–400 kV
Voltage range
Factory
Calibrated equipment
IEC / IEEE
Standards
Differentiator
Complete In-House
Testing Capability
TerraWatt operates fully equipped mobile testing services capable of performing comprehensive primary and secondary tests across all voltage levels. We bring complete testing capabilities directly to manufacturing facilities, construction sites, and operational facilities.
No outsourcing of critical tests. Faster project execution. Better quality control. Cost efficiency for our clients.
Mobile Testing Services
We come to you — on-site, anywhere
Factory Calibrated Equipment
Traceable calibration certificates
IEC, IEEE, ANSI Standards
Full compliance documentation
Flagship Equipment
State-of-the-Art
Testing Equipment
Our mobile testing laboratory is equipped with the most advanced relay testing and commissioning equipment available — ensuring accurate and reliable verification of your protection and control systems.
- Industry-leading Omicron CMC 256plus relay test system
- IEC 61850 GOOSE and sampled values testing
- End-to-end protection scheme verification
- Comprehensive disturbance record analysis
- Factory-calibrated and regularly maintained equipment
Equipment
Testing Equipment
High-Voltage Testing
Primary Testing Equipment
50kV AC Hipot Tester
High-voltage AC testing for insulation integrity verification
- Up to 50kV AC
- Factory calibrated
- IEC 62271 compliant
Metrel MI 3215 TeraOhmHP 15kV
Advanced insulation resistance and polarization index testing
- 15kV test voltage
- Polarization index
- DAR measurements
Metrel Microohm 100A
Precision contact resistance measurement
- 100A test current
- Micro-ohm resolution
- Breaker contact testing
Relay & Protection Testing
Secondary Testing Equipment
ISA (Doble) DRTS 64
Advanced digital relay test system
- 6-current, 4-voltage outputs
- IEC 61850 GOOSE testing
- Distance protection testing
Megger Sverker 900
Portable relay and substation test system
- 3-phase testing
- Protection relay verification
- Timing tests
Power Quality
Power Quality & Instrumentation
Fluke 435-II
Three-phase power quality analyzer
- Harmonic analysis up to 50th
- EN 50160 compliance
- Flicker analysis
FLIR Ti480 PRO
Thermal imaging camera
- Connection integrity
- Load balance assessment
- Hot spot identification
Capabilities
Testing Capabilities
Comprehensive testing services performed according to IEC, IEEE, and ANSI standards.
Medium Voltage Equipment
- Insulation resistance (Megger testing)
- Hi-Pot testing (AC/DC withstand)
- Contact resistance (micro-ohm)
- Vacuum integrity (VCB)
- Timing tests (open/close, synchronization)
- Power factor / Tan Delta
Protection Relay Testing
- Pickup/dropout tests
- Time characteristic curves
- Distance protection (impedance reach, zones)
- Differential protection
- IEC 61850 GOOSE testing
- End-to-end protection testing
Control Systems
- SCADA integration (point-to-point verification)
- Interlocking logic
- Automation sequences
- Remote control verification
- Alarm management testing
Critical Power Infrastructure
- UPS static/dynamic performance
- Generator load bank testing
- Automatic transfer schemes
- Selective coordination verification
- Ground fault protection
- Arc flash mitigation systems
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