Description
The STS-3000 light substation test set is a professional and multifunction testing system designed for electrical substations. It is widely used for testing transformers, current transformers (CT), voltage transformers (VT), and other high-voltage equipment. Moreover, it helps engineers perform accurate diagnostic tests during maintenance and commissioning.
This system supports advanced testing functions such as power factor, capacitance, and Tan Delta measurements. Therefore, it ensures reliable condition assessment of electrical equipment. In addition, it works with external modules like TD 5000 for high-voltage testing applications.
The device offers variable output frequency from approximately 15 Hz to 500 Hz. As a result, users can perform tests under different operating conditions. It also provides adjustable AC output voltage and high power output for demanding test requirements.
For usability, the system includes a large graphical display and simple control interface. Users can easily configure tests and monitor results in real time. Furthermore, USB and Ethernet interfaces allow connection to a PC for data storage and report generation.
The STS-3000 light substation test set is fully automatic, which reduces manual effort and improves efficiency. It also supports software integration for test management and reporting, making it suitable for modern substation diagnostics.
Its compact and portable design allows easy transportation between job sites. Despite its portability, the device delivers high performance and stable operation in demanding environments.
Engineers and technicians use this system for transformer testing, insulation diagnostics, and preventive maintenance. Overall, the STS-3000 light substation test set provides a reliable and efficient solution for advanced electrical testing applications.
Main features
- Fully automatic
- Variable output frequency: 15 – 500 Hz
- Output voltage up to 12 kV
- Power dissipation factor test with the module TD 5000 ( voltage up to 12 kV)
- PADS – Power Apparatus Diagnostic Software for automatic testing, assessment and report
- USB interface and Ethernet interface for PC connection
- Compact and lightweight.
Tests performed
- Tangent Delta
- Capacitance












