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RE: [TCML] Motor Question
how to figure ou the speed of a AC motor is done by the amount of poles
detemins the the rpm a 2 pole motor at 60HZ runs 3600 RPM. for more info see here
http://www.achrnews.com/Articles/Feature_Article/b4c9b9020b85a010VgnVCM100000f932a8c0____
hope this helps
Jeremy Richards.
From: tesla-request@xxxxxxxxxx
Subject: Tesla Digest, Vol 40, Issue 19
To: tesla@xxxxxxxxxx
Date: Fri, 18 Feb 2011 12:00:03 -0700
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--Forwarded Message Attachment--
From: nick-_-94@xxxxxxxxxxx
To: tesla@xxxxxxxxxx
Date: Thu, 17 Feb 2011 16:40:48 -0600
Subject: [TCML] Motor Question
Hey, I recently bought a motor for an improved spark gap. The owner didn't know the RPM of the motor, but it says it runs on 120volts at 0.65 amps at 1/50HP. Is there a way to calculate the RPM?
--Forwarded Message Attachment--
From: alice33@xxxxxxxxxx
To: tesla@xxxxxxxxxx
Date: Thu, 17 Feb 2011 12:35:19 -0500
Subject: Re: [TCML] Local TV clip of my coil.
Hi,
They did a good job with that show because they took the time to explain a
lot. You came accross well. Congratulations.
Becky
----- Original Message -----
From: "Scott Bogard" <sdbogard@xxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Tuesday, February 15, 2011 10:05 AM
Subject: [TCML] Local TV clip of my coil.
> Greetings all,
> For those interested, I was on a local TV segment with my Tesla
> coil this last October, for those who wish to see it, it has finally
> been put up on you-tube.
> http://www.youtube.com/user/MetroCastChannel10PA?feature=mhum#p/a/u/1/Rm8xyrtSgcg
> I thought it turned out pretty good, then again I am biased to see
> myself on TV, so enjoy.
>
> Scott Bogard.
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
--Forwarded Message Attachment--
From: wang9xb17@xxxxxxxxx
To: tesla@xxxxxxxxxx
Date: Thu, 17 Feb 2011 18:10:45 -0500
Subject: Re: [TCML] Motor Question
I don't believe there's a way to calculate it.
It might be possible to do it some additional hardware, though.
On Thu, Feb 17, 2011 at 5:40 PM, Nick geddert <nick-_-94@xxxxxxxxxxx> wrote:
>
> Hey, I recently bought a motor for an improved spark gap. The owner
> didn't know the RPM of the motor, but it says it runs on 120volts at 0.65
> amps at 1/50HP. Is there a way to calculate the RPM?
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
--Forwarded Message Attachment--
From: dave_p@xxxxxxxxxxx
To: tesla@xxxxxxxxxx
Date: Thu, 17 Feb 2011 23:22:38 +0000
Subject: Re: [TCML] Motor Question
> Hey, I recently bought a motor for an improved spark gap. The owner
> didn't know the RPM of the motor, but it says it runs on 120volts at
> 0.65 amps at 1/50HP. Is there a way to calculate the RPM?
More information is needed and even then the answer may not
be known. Surest is to measure.
Depends on the motor type:
synchronous: given pole count and frequency and rotor pole count
rpm os calulable.
induction: same, only speed varies.
anything else: speed varies with load, applied volts
best
dwp
--Forwarded Message Attachment--
From: jeremyee@xxxxxxxx
To: tesla@xxxxxxxxxx
Date: Fri, 18 Feb 2011 01:13:23 +0000
Subject: [TCML] RSG Electrical Connections
Hey guys and gals,
Had a question that I am having a hard time finding the answer to. I am trying to figure out if a certain connection scheme for powering the motor of my RSG. I was wanting to share the 120 V power connection between my NST bank and my RSG motor. Is there anything less than desirable in doing this (ie risk of damaging the motor) or should this be ok? If I do need to run separate power connections to these can the wires be contained in the same cable (or would there be radiated emission effects that might cause problems)? Thanks a lot in advance!
Jeremy
Cincinnati, OH
Sent from my BlackBerry device from Cincinnati Bell Wireless
--Forwarded Message Attachment--
From: sdbogard@xxxxxxxxx
To: tesla@xxxxxxxxxx
Date: Thu, 17 Feb 2011 19:59:12 -0500
Subject: Re: [TCML] Local TV clip of my coil.
Thanks, I'm glad the TV guy took the time to do some of his own research
along with what we told him.
Scott Bogard.
On 2/17/2011 12:35 PM, Alice wrote:
> Hi,
>
> They did a good job with that show because they took the time to explain
> a lot. You came accross well. Congratulations.
>
> Becky
>
> ----- Original Message ----- From: "Scott Bogard" <sdbogard@xxxxxxxxx>
> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> Sent: Tuesday, February 15, 2011 10:05 AM
> Subject: [TCML] Local TV clip of my coil.
>
>
>> Greetings all,
>> For those interested, I was on a local TV segment with my Tesla
>> coil this last October, for those who wish to see it, it has finally
>> been put up on you-tube.
>> http://www.youtube.com/user/MetroCastChannel10PA?feature=mhum#p/a/u/1/Rm8xyrtSgcg
>>
>> I thought it turned out pretty good, then again I am biased to see
>> myself on TV, so enjoy.
>>
>> Scott Bogard.
>> _______________________________________________
>> Tesla mailing list
>> Tesla@xxxxxxxxxx
>> http://www.pupman.com/mailman/listinfo/tesla
>
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
--Forwarded Message Attachment--
From: danniken@xxxxxxxxxxx
To: tesla@xxxxxxxxxx
Date: Thu, 17 Feb 2011 18:12:33 -0800
Subject: Re: [TCML] Motor Question
Nick geddert wrote:
> Hey, I recently bought a motor for an improved spark gap. The owner
> didn't know the RPM of the motor, but it says it runs on 120volts at
> 0.65 amps at 1/50HP. Is there a way to calculate the RPM?
You could always buy one of the tachometers from Harbor Freight.
Jon
--Forwarded Message Attachment--
From: danniken@xxxxxxxxxxx
To: tesla@xxxxxxxxxx
Date: Thu, 17 Feb 2011 18:14:48 -0800
Subject: Re: [TCML] RSG Electrical Connections
jeremyee@xxxxxxxx wrote:
> Hey guys and gals,
> Had a question that I am having a hard time finding the answer to.
> I am trying to figure out if a certain connection scheme for powering
> the motor of my RSG. I was wanting to share the 120 V power
> connection between my NST bank and my RSG motor. Is there anything
> less than desirable in doing this (ie risk of damaging the motor) or
> should this be ok? If I do need to run separate power connections to
> these can the wires be contained in the same cable (or would there be
> radiated emission effects that might cause problems)? Thanks a lot in
> advance!
My (modified) SRSG motor runs (after the variac) from the same source as the
NST, and I haven't had any trouble.
Jon
--Forwarded Message Attachment--
From: glau1024@xxxxxxxxx
To: tesla@xxxxxxxxxx
Date: Thu, 17 Feb 2011 21:14:40 -0500
Subject: Re: [TCML] RSG Electrical Connections
There's no issue with radiated emissions. However, they should not share
power connections, because you MUST control the NST and motor separately,
thereby requiring separate wires. For instance, you'll probably want to
control the power to the NST through a Variac, and you'll want to control
the RSG motor with a different Variac, and NEVER allow the RSG speed to go
below ~ 60BPS with power also going to the NST (assuming an async RSG).
Regards, Gary Lau
MA, USA
On Thu, Feb 17, 2011 at 8:13 PM, <jeremyee@xxxxxxxx> wrote:
> Hey guys and gals,
> Had a question that I am having a hard time finding the answer to. I am
> trying to figure out if a certain connection scheme for powering the motor
> of my RSG. I was wanting to share the 120 V power connection between my NST
> bank and my RSG motor. Is there anything less than desirable in doing this
> (ie risk of damaging the motor) or should this be ok? If I do need to run
> separate power connections to these can the wires be contained in the same
> cable (or would there be radiated emission effects that might cause
> problems)? Thanks a lot in advance!
>
> Jeremy
> Cincinnati, OH
> Sent from my BlackBerry device from Cincinnati Bell Wireless
>
>
--Forwarded Message Attachment--
From: cmayeux@xxxxxxxxxxxxxxxxx
To: tesla@xxxxxxxxxx
Date: Thu, 17 Feb 2011 20:31:18 -0600
Subject: RE: [TCML] Motor Question
> -----Original Message-----
> > Hey, I recently bought a motor for an improved spark gap. The owner
> > didn't know the RPM of the motor, but it says it runs on 120volts at
> > 0.65 amps at 1/50HP. Is there a way to calculate the RPM?
Might be able to get the info from some of my old catalogs.
Can you get a clear close-up picture of the name plate? Or
At least provide the model number and name of manufacturer?
---
Reverend Christopher "Fuzzy" Mayeux
Pastor, MSB Ministries
Hattiesburg, MS
http://www.msbministries.org
--Forwarded Message Attachment--
From: jeremyee@xxxxxxxx
To: tesla@xxxxxxxxxx
Date: Fri, 18 Feb 2011 03:49:52 +0000
Subject: Re: [TCML] RSG Electrical Connections
If it is specifically for control purposes, could I run separate hots and but then a common common? I am assuming that you want the supply going to the motor filtered as well in case a streamer makes its way to the motor. Thanks for the responses!
Jeremy
-------Original Email-------
Subject :Re: [TCML] RSG Electrical Connections
>From :mailto:glau1024@xxxxxxxxx
Date :Thu Feb 17 21:14:40 America/New_York 2011
There's no issue with radiated emissions. However, they should not share
power connections, because you MUST control the NST and motor separately,
thereby requiring separate wires. For instance, you'll probably want to
control the power to the NST through a Variac, and you'll want to control
the RSG motor with a different Variac, and NEVER allow the RSG speed to go
below ~ 60BPS with power also going to the NST (assuming an async RSG).
Regards, Gary Lau
MA, USA
On Thu, Feb 17, 2011 at 8:13 PM, <jeremyee@xxxxxxxx> wrote:
> Hey guys and gals,
> Had a question that I am having a hard time finding the answer to. I am
> trying to figure out if a certain connection scheme for powering the motor
> of my RSG. I was wanting to share the 120 V power connection between my NST
> bank and my RSG motor. Is there anything less than desirable in doing this
> (ie risk of damaging the motor) or should this be ok? If I do need to run
> separate power connections to these can the wires be contained in the same
> cable (or would there be radiated emission effects that might cause
> problems)? Thanks a lot in advance!
>
> Jeremy
> Cincinnati, OH
> Sent from my BlackBerry device from Cincinnati Bell Wireless
>
>
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla
Sent from my BlackBerry device from Cincinnati Bell Wireless
--Forwarded Message Attachment--
From: sparktron01@xxxxxxxxx
To: tesla@xxxxxxxxxx
Date: Thu, 17 Feb 2011 23:21:48 -0500
Subject: Re: [TCML] RSG Electrical Connections
I would resist using a common neutral for two separate branch loads. First it is technically a violation of the NEC (each branch load should have a dedicated neutral). Secondly the neutral would have to be oversized to handle steady state currents of two loads. Third, it is very poor, skirting on dangerous, design practice. There have been entire data processing centers burnt to the ground from overloaded ( glowing red hot mind you) neutrals on three phase systems with third order harmonics.
Regards
On Feb 17, 2011, at 10:49 PM, jeremyee@xxxxxxxx wrote:
> If it is specifically for control purposes, could I run separate hots and but then a common common? I am assuming that you want the supply going to the motor filtered as well in case a streamer makes its way to the motor. Thanks for the responses!
>
> Jeremy
>
>
> -------Original Email-------
> Subject :Re: [TCML] RSG Electrical Connections
> From :mailto:glau1024@xxxxxxxxx
> Date :Thu Feb 17 21:14:40 America/New_York 2011
>
>
> There's no issue with radiated emissions. However, they should not share
> power connections, because you MUST control the NST and motor separately,
> thereby requiring separate wires. For instance, you'll probably want to
> control the power to the NST through a Variac, and you'll want to control
> the RSG motor with a different Variac, and NEVER allow the RSG speed to go
> below ~ 60BPS with power also going to the NST (assuming an async RSG).
>
> Regards, Gary Lau
> MA, USA
>
> On Thu, Feb 17, 2011 at 8:13 PM, <jeremyee@xxxxxxxx> wrote:
>
>> Hey guys and gals,
>> Had a question that I am having a hard time finding the answer to. I am
>> trying to figure out if a certain connection scheme for powering the motor
>> of my RSG. I was wanting to share the 120 V power connection between my NST
>> bank and my RSG motor. Is there anything less than desirable in doing this
>> (ie risk of damaging the motor) or should this be ok? If I do need to run
>> separate power connections to these can the wires be contained in the same
>> cable (or would there be radiated emission effects that might cause
>> problems)? Thanks a lot in advance!
>>
>> Jeremy
>> Cincinnati, OH
>> Sent from my BlackBerry device from Cincinnati Bell Wireless
>>
>>
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
> Sent from my BlackBerry device from Cincinnati Bell Wireless
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
--Forwarded Message Attachment--
From: joe@xxxxxxxxxxxxxx
To: tesla@xxxxxxxxxx
Date: Fri, 18 Feb 2011 08:13:54 -0800
Subject: Re: [TCML] Maxwell 31173 fail
The snubber is what I'm going to have to do if I keep using this thing.
Some kind of cap + MOV ckt, I think is worth trying. Like a Terry
filter for the ARSG....in fact, maybe I'll use my old Terry filter from
my NST coil(s).
Joe
On 2/14/2011 5:24 PM, bartb wrote:
> Haha Joe, I was just kidding ;-) ! (you know how I am). Actually,
> possible you could use a snubber circuit in there somewhere to inhibit
> transients.
>
> Take care,
> Bart
>
> On 2/13/2011 7:48 AM, Joe Mastroianni wrote:
>>> Get rid of the fuse..
>>>
>>> Now all good,
>>> Take care,
>>> Bart
>> Really? I thought it's the rectifier that dies first. When it
>> shorts it kills the fuse in the variac. At least, that's the way
>> it's happening on my driveway...
>> Joe
>>
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
--Forwarded Message Attachment--
From: dave_p@xxxxxxxxxxx
To: tesla@xxxxxxxxxx
Date: Fri, 18 Feb 2011 16:50:34 +0000
Subject: [TCML] video 'lert: Mad Electrcity, History Channel, 8PM EST 18 Feb (etc)
Rerun from 2008, in case it was missed,
Tesla, mostly
Likely rerun midnight? (Check local listing....)
best
dwp
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