X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 04 Apr 2014 08:36:09 -0400 Message-ID: X-Original-Return-Path: Received: from qmta06.westchester.pa.mail.comcast.net ([76.96.62.56] verified) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTP id 6810478 for lml@lancaironline.net; Wed, 02 Apr 2014 07:37:14 -0400 Received-SPF: pass receiver=logan.com; client-ip=76.96.62.56; envelope-from=jmorgan1023@comcast.net Received: from omta17.westchester.pa.mail.comcast.net ([76.96.62.89]) by qmta06.westchester.pa.mail.comcast.net with comcast id kzPG1n0051vXlb856zcgXH; Wed, 02 Apr 2014 11:36:40 +0000 Received: from [192.168.1.100] ([24.11.157.196]) by omta17.westchester.pa.mail.comcast.net with comcast id kzcf1n00F4EXR5U3dzcfcm; Wed, 02 Apr 2014 11:36:40 +0000 From: Jack Morgan Content-Type: multipart/alternative; boundary="Apple-Mail=_E1D77EB0-CFAC-4B61-BD4E-BE0F74705A98" X-Original-Message-Id: <3F44E25E-62E9-4CE8-9D76-BDAE0B5A2224@comcast.net> Mime-Version: 1.0 (Mac OS X Mail 7.2 \(1874\)) Subject: Microwave current draw X-Original-Date: Wed, 2 Apr 2014 07:36:38 -0400 References: X-Original-To: Lancair Mailing List In-Reply-To: X-Mailer: Apple Mail (2.1874) --Apple-Mail=_E1D77EB0-CFAC-4B61-BD4E-BE0F74705A98 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=iso-8859-1 Hi Tim: If the inverter is really delivering 1100 watts to the oven then it is = drawing 85 amps or so from your 14 volt system (over 100 amps if the = voltage falls to 11 volts). Suggest you check carefully if the = wiring/breaker and engine monitor are both up to that current delivery. = You will obviously run the battery down fairly quickly even if the = alternator will support 60 amps continuous. Jack Morgan On Apr 2, 2014, at 6:00 AM, Lancair Mailing List = wrote: > From: Tim J=F8rgensen > Subject: LNC2 wiring issues > Date: April 1, 2014 at 8:57:04 AM EDT > To: lml@lancaironline.net >=20 >=20 > Instead of adding useless lead in the tail cone, I decided to cure a = fwd. CG problem with the installation of a more useful microwave oven in = the luggage compartment. The CG problem is somewhat fixed now, but I = seem to have traded it for an electrical problem. > I found a relatively small portable micro wave on the internet and = made a fixed installation for it. It is a 230v unit, but I have just = added a 14v to 230v inverter, which seems to work just fine. At first = everything worked flawlessly, but recently the alternator breaker has = started popping ever more often and is seems related to use of the oven. > If I heat something small, like a single corn dog, there is no problem = but if I heat larger objects like a turkey leg, the engine monitor cuts = out in an alternating pattern for a while and then the alternator = breaker pops. But, then again, maybe that is due to the higher wattage = needed??? > I am afraid my 60 amp alternator is not quite up to the job or should = I just install a heavier circuit breaker? The oven is labelled "CE 230v = 1080w". > =20 > Regards > Tim Jorgensen > 360MKII in flight testing >=20 --Apple-Mail=_E1D77EB0-CFAC-4B61-BD4E-BE0F74705A98 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=iso-8859-1 Hi = Tim:

If the inverter is really delivering 1100 watts = to the oven then it is drawing 85 amps or so from your 14 volt system = (over 100 amps if the voltage falls to 11 volts). Suggest you check = carefully if the wiring/breaker and engine monitor are both up to that = current delivery. You will obviously run the battery down fairly quickly = even if the alternator will support 60 amps = continuous.

Jack = Morgan

On Apr 2, 2014, at 6:00 AM, Lancair = Mailing List <lml@lancaironline.net> = wrote:

From: Tim J=F8rgensen <tj@yacht-pool.dk>
Subject: LNC2 wiring = issues
Date: April 1, 2014 at 8:57:04 AM = EDT


Instead of adding useless = lead in the tail cone, I decided to cure a fwd. CG problem = with the installation of a more useful microwave oven in the luggage = compartment. The CG problem is somewhat fixed now, but I seem to = have traded it for an electrical problem.
I = found a relatively small portable micro wave on the internet and made a = fixed installation for it. It is a 230v unit, but I have just added a = 14v to 230v inverter, which seems to work just fine. At first everything = worked flawlessly, but recently the alternator breaker has started = popping ever more often and is seems related to use of the = oven.
If I heat something small, like a single corn = dog, there is no problem but if I heat larger objects like a turkey leg, = the engine monitor cuts out in an alternating pattern for a while and = then the alternator breaker pops. But, then again, maybe that is = due to the higher wattage needed???
I am = afraid my 60 amp alternator is not quite up to the job or should I just = install a heavier circuit breaker? The oven is labelled "CE 230v = 1080w".
 
Regards
Tim = Jorgensen
360MKII in flight testing


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