Resonant Test Systems

SGM type Resonant Test Systems, is applied for the generation of a continuously variable alternating (AC) voltage of a fixed frequency (mainly 50 or 60 Hz) for high-voltage (HV) routine, type and development testing of capacitive test objects. They can also be applied for HV on-site tests, but SAMGOR offers for that application the more economic solution of frequency-tuned resonant test systems.
Capacitive test objects are cables, capacitors, but also large rotating machines, instrument and power transformers (for applied voltage tests). Resonant test systems enable not only HVAC tests at 50/60 Hz, but also at higher or lower frequency (10-300 Hz) and dynamic tests with fast voltage changes (e.g. for capacitors). Because of their precise sine-wave, resonant test systems are very well suited for the combination of HVAC withstand tests and partial discharge (PD) measurement.
Frequency 10-300HZ
Up to 1200KV
Up to 20MVA

The test system includes the following main components:
(1) Tunable series resonant reactor (50/60HZ or 20-300HZ);
(2) Voltage regulator (50/60HZ);
(3) tunable frequency power source (20-300hz);
(4) resonant capacitor (also coupling capacitor for PD measuring system;
(5) capacitive voltage divider;
(6) manual/automatic control and measuring system;
(7) power noise filter (50/60hz);
(8) exciter transformer