PGR Test Systems are designed and built to perform ultra high voltage DC insulation tests on electrical apparatus, bushings, transformers, and cables according to IEC and IEEE standards.
The PGR test systems are built in standard modules of 400 kV DC, which can be stacked and expanded to achieve voltages of up to 2,000 kV DC. The standard modules have a small footprint to optimize space on the test floor or for designing mobile systems to be used for on-site testing (Model PGRO). An optional remotely controlled discharge resistor can be provided to safely discharge very large capacitive loads, such as long lengths of cable.
They are ideal systems to be used for DC withstand voltage tests, partial discharge measurements with the DDX 9161 PD Detector, as well as superimposed lightning impulse tests with impulse voltage generators.
Datasheet:
PGR Features
Small footprint to optimize space
Can be designed for mobile use on site (PGRO)
Stackable standard modules allow for easy future expansion of the system
Rated current available over the entire voltage range
Low ripple < 3% displayed in real time
Fast polarity reversal
DC partial discharge testing capable with the DDX 9161 PD Detector
Optional remotely controlled discharge resistor