Robert Gift
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Re: Warren, Ohio _ Trumbull County

Sat Jun 16, 2007 11:58 pm

Elliott wrote:...here are some cool pics from an install last summer ...or maybe the one before.
Siren I stumbled across along the way:
Thanks for your interesting photos, Elliott.
Your detailed close-ups are especially enjoyable.

http://i203.photobucket.com/albums/aa11 ... 035_35.jpg
The motor looks so small, especially for single phase. How many horsepower?

On the radio control it reads the timings: Attack = 6 seconds ON / Six Off - 3 minutes.
http://i203.photobucket.com/albums/aa11 ... 010_10.jpg
What is the next below?
Thank you,

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SirenMadness
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Sun Jun 17, 2007 12:30 am

The rotor-motor is rated at (7.5) horsepower.
~ Peter Radanovic

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Elliott
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Re: Warren, Ohio _ Trumbull County

Sun Jun 17, 2007 2:40 am

Robert Gift wrote:
http://i203.photobucket.com/albums/aa11 ... 035_35.jpg
The motor looks so small, especially for single phase. How many horsepower?

On the radio control it reads the timings: Attack = 6 seconds ON / Six Off - 3 minutes.
http://i203.photobucket.com/albums/aa11 ... 010_10.jpg
What is the next below?
Thank you,
It's a DC motor, so technically not single-phase (implies AC). Unaware of HP myself.

Not sure what the other command listing after attack was. I'll ask Clayton.
Elliott, A.K.A. KD8FOV, and Sirenzrok on Youtube

Robert Gift
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Sun Jun 17, 2007 12:16 pm

I'm an IDIOT!
Should have realized when I viewed your rectifier photo that it is DC.
Also can now see on motor lable it is Advanced DC Motors, INC.

So it is battery powered or battery back up? That is the way to go.
I heard of a tornado knocking out someone's power grid and therefore no notice.

Thank you,

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Elliott
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Sun Jun 17, 2007 2:48 pm

Robert Gift wrote:I'm an IDIOT!
Should have realized when I viewed your rectifier photo that it is DC.
Also can now see on motor lable it is Advanced DC Motors, INC.

So it is battery powered or battery back up? That is the way to go.
I heard of a tornado knocking out someone's power grid and therefore no notice.

Thank you,
Your'e not an idiot by any means Robert.

These units are battery-backup. I would guess that the only battery powered units would be solar recharged units in desolate locations without utility power. The one shown was installed in front of a fire station.

I will also add, the in the contactor photo, you can see the CT, or current transformer around the black wire, to monitor siren motor current. Also, the silver and white device that says T-Tron on it (between the left side black terminal above the contactor is a surge arrestor for lightning.
Elliott, A.K.A. KD8FOV, and Sirenzrok on Youtube

Robert Gift
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Sun Jun 17, 2007 3:01 pm

Elliott wrote:... in the contactor photo, you can see the CT, or current transformer around the black wire, to monitor siren motor current. Also, the silver and white device that says T-Tron on it (between the left side black terminal above the contactor is a surge arrestor for lightning.
Interesting. Thanks for explaining that. I love learning every detail.

In east Denver, there is a solar-powered Federal Signal 2001 right next to a high school:
http://maps.live.com/default.aspx?v=2&c ... &encType=1
Did the solar power option save it's cost in trenching A.C. the small distance from the school to the siren?
When I consider the cost of pole, and planting it, and cost of solar power, why did they not place the 2001 on the school's auditorium roof (below bottom of photo) which is about the same height?

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AllSafe
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Mon Jun 18, 2007 5:35 am

Advanced DC motors are great...used quite often in electric car applications where reliability is paramount.
Ich spreche nicht Deutsch...doh!

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Elliott
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Mon Jun 18, 2007 11:09 am

Robert Gift wrote:
In east Denver, there is a solar-powered Federal Signal 2001 right next to a high school:
http://maps.live.com/default.aspx?v=2&c ... &encType=1
Did the solar power option save it's cost in trenching A.C. the small distance from the school to the siren?
Probably, I'm guessing. The solar panel has to be a mere trickle charge I'm thinking, and with a monthly cycle time, as well as warning cycles, that is enough to keep the batteries charged.

I guess they could have just as well mounted it on the school roof.
Elliott, A.K.A. KD8FOV, and Sirenzrok on Youtube

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Gil
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Mon Jun 18, 2007 3:14 pm

Not to be off topic, but this is kind of about solar panels. There is a 2001
about a mile from my house that has every single kind of box you can think of. Its got AC power, Solar Panel AND Battery Backup. Its got the controls
a recitifier. Its cluttered. Its pretty impossible for that thing to ever loose
power. :D

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