HIGHVOLT manufactures three types of DC test systems for various performance categories.
The L- and K-series test systems are designed for tests with low currents, such as bushings, and feature a compact design. The M-series test systems are designed to test systems with higher currents ranging up to several hundred milliamperes, such as for outdoor or pollution testing.
The DC voltage test systems are generally equipped with polarity reversal.
In addition HIGHVOLT offers DC voltage sources for charging capacitor banks for voltages up to 1,000 kV. They are also designed to be compact and highly reliable.
Applications
High-voltage DC testing for transformers, cables, bushings, switchgears, etc.
Wet and pollution testing
DC current measurements at high-voltage potential
Charging capacitor banks for high-performance testing
Special testing, for example, for bipolar testing of overhead lines
For use indoors and outdoors
Benefits
Low ripple on voltage (< 3%)
Large range of nominal voltages (up to 2,000 kV) and nominal currents
(up to 1,000 mA)
Rapid polarity reversal
Upgrades for the DC test system to measure partial discharges of the test system at low background noise levels