STS 4000 is a multifunction substation maintenance & commissioning test system for current, voltage and power transformers, designed to perform primary tests requested in substations commissioning. It allows to perform accurate tests on CTs, VTs, PTs and ground grid.
Primary injection testing capabilities: up to 800 A or up to 5000 A / 7000 A, with the optional module BUX 5000
Variable output frequency: 15 - 500 Hz
Power dissipation factor test with the optional module TD 5000 ( voltage up to 12 kV)
2000 v AC high-pot test
Local control by large color display
PADS - Power Apparatus Diagnostic Software for automatic testing, assessment and report
IEC 61850-9-2 communication protocol
Patented technology for Capacitance and Tan Delta measurement
USB interface and Ethernet interface for PC connection.