Thanks Skogsgurra,
I've had a quick search for the NFO Sinus Drive and note in their literature "NFO Sinus sets a new global standard with pure sinusoidal output voltage & current", which is definitely a requirement for my intended Test gear. Can you expand on how and where your got access to...
Thanks guys,
I do need to vary the voltage whilst maintaining a presettable Frequency. I've noted that VSDs control both voltage and frequency in a preprogrammed manner. I would be happy to use a VSD but again I need to have access to the driver circuit so as to remove that preprogram and...
Hi all,
I am looking for an inexpensive way of producing 3 phase pure sine wave, variable voltage (0-220Vp-p) and variable frequency (40-100Hz)independent to each other, from a single phase supply. My thought was to use an off-the-shelf pure sine wave AC/AC UPS and modify the IGBT drive...
Hi Peoples,
I am searching for a supplier that stocks the old English Electric protection relay test plugs. They plug into the English Electric panel mounted test socket which isolates relay circuits from the field to allow secondary injection protection relay testing. The original installation...
