generator circuit

Sun Aug 29, 2010 5:16 am   

Hi,

I just completed wiring and testing my circuit.

* no backfeed from the generator into the grid
* generator is disconnected from the load when service is on
* generator is disconnected from the load when service disconnect is on

http://jons-math.bravehost.com/transfer.html

Jon

Sun Aug 29, 2010 8:03 pm   

On Sun, 29 Aug 2010 00:16:49 -0400, "Jon" <jon8338_at_peoplepc.com>
wrote:


Fail... No contactor in the service feed to the load. Does not meet
code, does not meet specifications for transfer circiuts, is hazardous
and ANOTHER one of your crazy designs.

Correction: epic fail, not just ordinary fail.

Sun Aug 29, 2010 9:22 pm   

"Jon" <jon8338_at_peoplepc.com> wrote in message
news:y5qdnTt-mYmyQuTRnZ2dnUVZ_rQAAAAA_at_earthlink.com...

Just curious what you are trying to achieve here? It seems as if you want
the generator to take over supplying power to the house and barn when the
mains fail?

Sun Aug 29, 2010 9:48 pm   

On Sun, 29 Aug 2010 15:03:53 -0400, PeterD <peter2_at_hipson.net> wrote:


Don't feed the troll.

Sun Aug 29, 2010 11:15 pm   

We've been through this, WTF is so hard about using a DPDT 240v coil
contactor/relay? Wire the coil and the N.O. contacts to the utility power,
the common contacts to the load, and the generator feeds to the N.C.
contacts. Whenever the utility power is lost the relay drops out and swaps
the load over from utility to generator power. You can also get a bit fancy
an add an auto-start circuit for the generator if you so desire.

Sun Aug 29, 2010 11:49 pm   

On Sun, 29 Aug 2010 14:34:28 -0700 (PDT), "Dr. Inj Ury Phd."
<proteusiiv_at_gmail.com> wrote:


Yes, AlwaysWrong, we all know who you are...

Mon Aug 30, 2010 12:14 am   

"PeterDumb" <peter2_at_hipson.net> wrote in message
news:pmbl76h24f5u6gkei49klifq37qt43pum5_at_4ax.com...

PerterDumb and krw_at_att.bizzzzzzzzzzzz

You 2 are too quick to conclusion.

The contactor is there, it depends on the coil activation. The only problem
is, he is not showing the wiring in the schematic which source is
controlling the activation coil. His logic is fine, it maybe just the way
he draws the circuit.

Mon Aug 30, 2010 12:15 am   

"Jeff Johnson" <Jeff_Johnson_at_Hotmail.com> wrote in message
news:i5efi3$it5$1_at_news.eternal-september.org...

It's self-explanatory idiot. His logic is loud and clear. He is telling
you dipshit that his project works! and he doesn't need your shit.

Mon Aug 30, 2010 12:21 am   

"Tom Horne" <hornetd_at_gmail.com> wrote in message
news:30c485db-5dd7-4150-b82d-2a3e10b25689_at_l20g2000yqe.googlegroups.com...
On Aug 29, 12:16 am, "Jon" <jon8...@peoplepc.com> wrote:

Jon's circuit and idea is fine, no problem with his logic, the only problem
is, in his schematic, the two contactors must operate without each other,
they form a 2-way selector(switch) for the load. The commercial line is
high priority as he explained, but circuit needs a better clarification.

Mon Aug 30, 2010 12:25 am   

On Aug 29, 12:16 am, "Jon" <jon8...@peoplepc.com> wrote:

Jon
since there is still a connection to the service disconnect you have a
single point of failure. If anyone were to close the service
disconnect a short pulse of current would be imposed on the service
entry conductors. It takes a few milliamperes to kill. I'm sure you
believe that this can never happen but your belief does not make your
circuit good practice. The addition of an auxiliary contact, of the
break before make type, to the Service Disconnecting Means switch or
breaker would add the human factor safeguard that is missing. With
that auxiliary contact any closing of the Service Disconnecting Means
would cause your contactor to drop out and thus disconnect the
generator from the load wiring before that wiring could be physically
connected to the Service Entry Conductors. Even better would be to
add a shunt trip to the Service Disconnecting Means. A shunt trip
would open the Service Disconnecting Means breaker. If the Service
Disconnecting Means is a fused switch You would need to add an
enclosed breaker to serve as the shunt trip device. Everything should
be wired so that any failure of the Generator provided control current
to go to the house and back will prevent the contactor at the
generator from closing. The only vulnerability in that scheme is the
possibility of a short circuit in the control circuit that would close
the contactor without the auxiliary contacts at the Service
Disconnecting Means actually being closed to pass the current. Since
you only need two control wires to make the contactor work and you
have three you could use one to pull in a control relay located at the
contactor to complete its coil circuit. That control current would
only be present if the auxiliary contact on the Service Disconnecting
Means has changed position in response to the Service Disconnecting
Means having been opened or the shunt trip having operated. This
would eliminate the need for a control relay at the Service
Disconnecting Means although continuing to use it would do no harm.
--
Tom Horne

Mon Aug 30, 2010 12:34 am   

On Aug 29, 4:48 pm, "k...@att.bizzzzzzzzzzzz"
<k...@att.bizzzzzzzzzzzz> wrote:

Mr. Keith have you finally taken control over that crack addiction of
yours.I am hoping to help many of you trolls to recover from your
addictions and return you back into normal contributing members of
society...Don't forget to make an appointment to see me next week...if
you are uncomfortable with that, then go see your nearest
practitioner.
Thank you, Come again.
Dr. Ury

Mon Aug 30, 2010 1:01 am   

On Sun, 29 Aug 2010 16:36:24 -0700 (PDT), "Dr. Inj Ury Phd."
<proteusiiv_at_gmail.com> wrote:


We know you're paranoid, too, DimBulb.


Your normal "practice" is to be wrong, always, AlwaysWrong.


I've told you a hundred times, Dimmie, YOU ARE NOT MY TYPE. Now take your
perversions elsewhere!


Your latest nym is more moronic than usual, Nymbecile.

Mon Aug 30, 2010 2:29 am   

On Aug 29, 7:21 pm, "ProTeUs" <arcturian...@earthlink.net> wrote:

Fake Proteus, you seem to know much about electricity., the real
Proteus needs someone experienced to clean and upgrade it's deep
seething probe, you can get some extra deep time with it if you do the
job right.We all know you like it deep and thrusty. What do you say,
you can save the tax payers and project managers a bundle..bring your
Medicare card so we can credit you for the service.

Dr. Inj Ury Phd.

Mon Aug 30, 2010 2:30 am   

On Aug 29, 6:49 pm, "k...@att.bizzzzzzzzzzzz"
<k...@att.bizzzzzzzzzzzz> wrote:

They know who you are too., if you want to live your entire life as a
crackhead Pipe chugging chugger that is your sad choice, but do not
say we did not care to help you out of that...I must return to my
normal practice, you will be seen by Proteus from now further on.Thank
You, Come Again.
Dr. Ury

Mon Aug 30, 2010 2:30 am   

On Aug 29, 8:01 pm, "k...@att.bizzzzzzzzzzzz"
<k...@att.bizzzzzzzzzzzz> wrote:

Keith I guess that means you will not help with the upcoming Proteus
upgrade...
IMPORTANT NOTE: You have lots of hostility in you and your commentary
above "YOU ARE NOT MY TYPE" is a clear indication of your latent
homosexuality..homosexuality in the work place is a big problem now a
days..don't give in to your wretched gay desires and see a
professional about it as soon as possible.
Thank You, Stay Away.
Dr. Inj Ury

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