alt.engineering.electrical

Craig wrote:
> "bud--" < @ > wrote in message
> news:7a8b3$46a78109$4213eab7$13826@ ...
>> Craig wrote:
>>> "Don Kelly" wrote in message
>>> news:8% $ @pd7urf1no...
>>>> "Craig" wrote in message
>>>> news:g% $ @fe1.news. ...
>>>>> I am going to a customer site to measure machine power, while it is in
>>>>> an idle state. It has a 3 phase & neutral supply(50Hz).
>>>>>
>>>>> My plan is to use a clamp meter to measure current,
>>>>>
>>>>> is it simply a case of P=IV for power or is there a need to multiply by
>>>>> sqrt(2). Also, do I need to measure the 3 phases and add the reults
>>>>> together to get the total power consumption.
>>>>>
>>>>> Thanks.

>>>> From the question- you really don't know what you are doing so I suggest
>>>> that you get someone who does know even if it costs a bit. Your customer
>>>> might be far happier if someone competent did the measurements.
>>>> If you want real power measurements a clamp on ammeter won't do. You
>>>> need to
>>>> a) have a wattmeter or some form of phase measurement
>>>> b) know what you are doing.
>>>>

>>> If you don't know, just don't reply. That way I won't have to read
>>> throught he drivel you type.
>> Don answer was exactly right. And you still don't have a clue what you are
>> doing. A starter might be looking up "power factor" in Wikipedia.
>>

>
> I may not be a competent electrician, but I am a qualified one so, at least
> in the UK, people will just have to put up with cowboys like me doing
> electrical work and giving superstars like yourselves a bad name.
>

Wow, just 4 days ago Sue/Palindrome said:
“The system in the UK is, admittedly, wierd.”
“The actual person doing the wiring needs no qualifications at all,
specific or unspecific. He could have been at school the previous week.”


You dismissed Don’s answer as “drivel”.

You apparently didn’t take my suggestion and look up “power factor” in
Wikipedia. If you did, you would have found a significant portion of
what daestrom posted, and perhaps could have asked an intelligent question.

Somehow "superstars" like me have been given a bad name. "Superstars"
like me include most licensed electricians in the US and about everyone
that follows this newsgroup.

Your behavior is not conducive to getting responses.

--
bud--