Author Topic: Independent voltage Measurement  (Read 1773 times)

JcatEnergy

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Independent voltage Measurement
« on: January 07, 2015, 07:41:41 PM »
I have installed New TED 6000 and the voltage measured by the MCU are identical.
The voltage reading of the MCU is also low (92 VAC). the actual voltage measure to ground is at around 127VAC.(with fluke voltmeter)
I manage to correct the voltage reading by tweaking the voltage calibration but the reading is the same on all the three phase for the voltage.
Does a TED 6000 measured the voltage on a three phase system independently?

Thanks
« Last Edit: January 07, 2015, 07:43:43 PM by JcatEnergy »

RussellH

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Re: Independent voltage Measurement
« Reply #1 on: January 07, 2015, 09:18:11 PM »
The voltage reading of the MCU is also low (92 VAC). the actual voltage measure to ground is at around 127VAC.(with fluke voltmeter)

I smell a setup error.  I'm guessing you wired it up to 208 and it's expecting to see 240.  As a result, it's calculating the phase voltage wrong.

JcatEnergy

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Re: Independent voltage Measurement
« Reply #2 on: January 07, 2015, 09:28:55 PM »
Actually one of the phase has not been wired (blue wire not connected) as I only have a two phase test installation.
The system is actually meant for a small factory which does has a three phase system but I was testing it at home. it still show 92 VAC on the phase that has not been wired which I was nnot expecting