60 Hz at 0 volts? :(

[keynotez]

Hello folks! I'm just a newbie here. I'm just confused where did the 60 Hz came from even at 0 volts on the line. I have a data gathering at a generator set using a HIOKI power analyzer. When the generator shuts down, of course the voltage at the lines are zero and the frequency MUST be also zero, am I right? I'm really confused that right after it reaches a low frequency (e.i. 35 Hz at 0 volts), it will now rise to 60 Hz all through out the recording period. Where did that 60 Hz came from? Any help will be much appreciated. Thank you in advance...

 

[oxocube]

Hz relate directly to rotation, so if the generator has stopped theres no Hz, maybe you analiser's up the creek. And the normal uk supply is 50Hz.

 

[Knobhead]

Do you have a base frequency set in the analyser? This could account for some of the weird readings you last posted.

 

[keynotez]

The analyzer can be supplied by 50/60 Hz. Is there no other reasons why it came up that way?
I need badly the results but because of that error. I'm getting more pressured...

 

[keynotez]

Tony, you may be right. I'll check if there was a base frequency setting. But as far as I could remember and on reading the manual, the frequency reading will be set on either Line 1, 2 or 3. But anyway, I would still check on the instrument if there was base frequency setting. Thanks a lot Sir! I feel better now...