The high-current Ferrotest mobile power packs provide both AC and HWDC magnetising currents from 1000 Amps up to 7100 Amps AC, and from 950 Amps to 5000 Amps DC.
Constant current magnetisation
Constant current is initiated upon operating a foot or hand switch. An electronic system regulates the test current from 0 to maximum in approx. 200 ms, which avoids unnecessary peak loading of the mains supply.
If the impulse operation is selected a sequence of single impulses is produced according to a factory-set on/off duty cycle of (1 s/1 s).
After selecting the demagnetisation setting, the test current is regulated from the set maximum value to 0 in approximately 600 ms.