[BC] Re: 3 phase to single phase conversion

[Mark Croom]

I have ordered the factory outdoor enclosure for the upcoming install. I
thought a bit about rolling my own but decided it was probably worth it to
just get the factory model and concentrate on other stuff as I move into the
install phase of this project. If you had ever seen any of my building
projects (sheds, garages, etc) you would understand why I think we'll have a
much more professional looking end product this way.

Thanks for the insight on the grease fittings. I presume they have
*something* about this in their documentation, yes?

Mark
MN

On Tue, Feb 10, 2009 at 1:18 PM, Chuck Lakaytis <chuck at akpb.org> wrote:

> Mark:
>
> I have used two Kay phase converters here in Alaska.  Both gave service
> greater then fifteen years with no problems whatsoever.  These installs were
> inside the transmitter buildings and were loud.  I do know that Kay makes an
> external enclosure for them. HINT  The bearings have Zerk fittings.  DO NOT
> GREASE THE BEARINGS in normal use. None of the bearings on the units I had
> were ever greased.  And if they do need to be greased for some reason you
> must use a special grease, not the ordinary chassis grease.
>
> Also, if you need to reduce the transmitter to half power for some reason,
> you need the model with relay control to switch caps in and out of the
> circuit.  I believe that Kay makes an option that will automatically switch
> caps depending on the load.
>
> Mark Croom wrote:
>
>> I'm about to install a Kay converter at a site that's getting a new BE
>> FM30T
>> in a couple of months. Like most of these sites, it was simply too far to
>> be
>> worth it to bring in three-phase from the utility. We're talking something
>> like $75k or so--the management wasn't interested in that deal.
>>
>> FWIW, I decided to put the converter in a cabinet outside the building
>> rather than deal with the additional noise and heat inside. I'm still
>> waiting on the delivery so I don't have the thing in my possession quite
>> yet.
>>
>> Given the relative nearness of our install, I am watching this discussion
>> about phase converters with interest.
>>
>> Mark
>> MN
>>
>> On Mon, Feb 9, 2009 at 7:28 PM, Al Wolfe <awolfe at route24.net> wrote:
>>
>>
>>
>>>  The Kay roto-phase converters I've dealt with have turned out to be the
>>> most reliable equipment in the plant. If everything worked as well as the
>>> Kays we'd all be out of work.
>>>
>>> Al, retired mostly
>>> aka K9SI
>>>
>>>
>>>
>>
>>
>>
>>
>
> --
> Chuck Lakaytis
> Director of Engineering
> Alaska Public Broadcasting, Inc.
> 135 Cordova Street
> Anchorage, Ak 99501
> office   907-277-6300
> fax      907-277-6350
> cell     907-301-4339
>
>