Insulation Tester.

[John]

Has anyone any experience with a good, cheap insualtion tester. The old
megger with the handle used to work OK but I have not seen any of them for a
while now. I think the regs say 500 volt.
John

 

[John Crighton]

On Wed, 21 Jan 2004 03:33:50 GMT, "John" <johnnyboy@not.dodo.com.au>
wrote:

Has anyone any experience with a good, cheap insualtion tester. The old
megger with the handle used to work OK but I have not seen any of them for a
while now. I think the regs say 500 volt.
John


Hello John,

funny thing, I also, was just thinking about finding an old megger
for insulation testing. Yes they very good. Hard to find now.

I was also wondering about a good cheap or homemade
electrical joint tester. Something like a low ohms meter
that would pass 1 amp, 10 amps or more amps through
an electrical connection and then measure the number of
milli volts across the joint. Then was thinking, I wonder
if Bob Parker had given any thought to a simple tester
in a small box that might do the job with micros and
clever tricks, along the same lines as his ESR meter.
Any suggestions Bob?

Regards,
John Crighton
Hornsby

 

[Phil Allison]

"John Crighton" <john_c@tpg.com.au>

I was also wondering about a good cheap or homemade
electrical joint tester. Something like a low ohms meter
that would pass 1 amp, 10 amps or more amps through
an electrical connection and then measure the number of
milli volts across the joint. Then was thinking, I wonder
if Bob Parker had given any thought to a simple tester
in a small box that might do the job with micros and
clever tricks, along the same lines as his ESR meter.
Any suggestions Bob?

** The ESR meter is also a "low ohms meter" - it says so on the front. The
resolution is 10 milliohms. The only limitation is that the connection is
tested over a short distance - inches not metres.

BTW Contact resistance falls as the current increases - so Bob's meter
which uses low currents will give pessimistic ohmage readings for relay
contacts etc.



........... Phil

 

[Dwayne]

Altronics do a Megger kit, I built one and works great
has settings for 500v & 1000V tests.

Dwayne


John wrote in message <400df31d$1@news.comindico.com.au>...

Has anyone any experience with a good, cheap insualtion tester. The old
megger with the handle used to work OK but I have not seen any of them for
a
while now. I think the regs say 500 volt.
John

 

[Bob Parker]

G'day,
These days I don't follow the goings-on on newsgroups very closely,
and I almost didn't see that.
I haven't really thought about doing anything like that. Maybe a
bit too specialized to be very popular as a kit/magazine project. As
Phil said, contact resistance varies with current, which tends to
complicate things.
As for meggers, I bought a Hung Chang 500V one from WES Components
a few years ago. It seems to do the job quite well, but I don't
remember seeing it in the catalog lately. Maybe no-one was buying
them, or maybe they don't meet some approval I don't know about....

Cheers,
Bob


john_c@tpg.com.au (John Crighton) wrote:

On Wed, 21 Jan 2004 03:33:50 GMT, "John" <johnnyboy@not.dodo.com.au
wrote:

Has anyone any experience with a good, cheap insualtion tester. The old
megger with the handle used to work OK but I have not seen any of them for a
while now. I think the regs say 500 volt.
John


Hello John,
funny thing, I also, was just thinking about finding an old megger
for insulation testing. Yes they very good. Hard to find now.

I was also wondering about a good cheap or homemade
electrical joint tester. Something like a low ohms meter
that would pass 1 amp, 10 amps or more amps through
an electrical connection and then measure the number of
milli volts across the joint. Then was thinking, I wonder
if Bob Parker had given any thought to a simple tester
in a small box that might do the job with micros and
clever tricks, along the same lines as his ESR meter.
Any suggestions Bob?

Regards,
John Crighton
Hornsby

 

[John]

Dwayne,
What degree of difficulty is the megger kit? My eyes and hands are not what
they were.
For $59.00 it sounds just fine.
John
"Dwayne" <secretworks@hotmail.com> wrote in message
news:bul6vr$ar5$1@mws-stat-syd.cdn.telstra.com.au...

Altronics do a Megger kit, I built one and works great
has settings for 500v & 1000V tests.

Dwayne


John wrote in message <400df31d$1@news.comindico.com.au>...
Has anyone any experience with a good, cheap insualtion tester. The old
megger with the handle used to work OK but I have not seen any of them
for
a
while now. I think the regs say 500 volt.
John

 

On Wed, 21 Jan 2004 03:33:50 GMT, "John" <johnnyboy@not.dodo.com.au>
wrote:

Has anyone any experience with a good, cheap insualtion tester. The old
megger with the handle used to work OK but I have not seen any of them for a
while now. I think the regs say 500 volt.

Tried an electrical wholesaler?
That's where most people buy them from.

 

[Dwayne]

Very easy from what I can remember
You will need a multimeter to calibrate the unit

Dwayne



John wrote in message <400eddaf$1@news.comindico.com.au>...

Dwayne,
What degree of difficulty is the megger kit? My eyes and hands are not what
they were.
For $59.00 it sounds just fine.
John

 

[Andrew Cerasuolo]

Hi John,
Silicon Chip Mag May 1996 , has a gh voltage insulation tester which
can produce 100V,250V,500V,600V,1000V.
Ciao Andrew
On Wed, 21 Jan 2004 03:33:50 GMT, "John" <johnnyboy@not.dodo.com.au>
wrote:

Has anyone any experience with a good, cheap insualtion tester. The old
megger with the handle used to work OK but I have not seen any of them for a
while now. I think the regs say 500 volt.
John

 

[John]

Bob,
Altronics have a Hung Chang 500V Q1240 for $95.00. Looks promising too.
Thanks, John

"Bob Parker" <bobp@bluebottle.com> wrote in message
news:dg3t005agdae5vga2er9sut587mhao6ksl@4ax.com...

G'day,
These days I don't follow the goings-on on newsgroups very closely,
and I almost didn't see that.
I haven't really thought about doing anything like that. Maybe a
bit too specialized to be very popular as a kit/magazine project. As
Phil said, contact resistance varies with current, which tends to
complicate things.
As for meggers, I bought a Hung Chang 500V one from WES Components
a few years ago. It seems to do the job quite well, but I don't
remember seeing it in the catalog lately. Maybe no-one was buying
them, or maybe they don't meet some approval I don't know about....

Cheers,
Bob


john_c@tpg.com.au (John Crighton) wrote:

On Wed, 21 Jan 2004 03:33:50 GMT, "John" <johnnyboy@not.dodo.com.au
wrote:

Has anyone any experience with a good, cheap insualtion tester. The old
megger with the handle used to work OK but I have not seen any of them
for a
while now. I think the regs say 500 volt.
John


Hello John,
funny thing, I also, was just thinking about finding an old megger
for insulation testing. Yes they very good. Hard to find now.

I was also wondering about a good cheap or homemade
electrical joint tester. Something like a low ohms meter
that would pass 1 amp, 10 amps or more amps through
an electrical connection and then measure the number of
milli volts across the joint. Then was thinking, I wonder
if Bob Parker had given any thought to a simple tester
in a small box that might do the job with micros and
clever tricks, along the same lines as his ESR meter.
Any suggestions Bob?

Regards,
John Crighton
Hornsby

 

[John]

I used a new junk email address here less than 3 hours ago. I forgot to
disguise it and I have received this email twice.
================================================
"A message which was sent to you was discarded by ENEA-Sophos MailServer
Antivirus
For your protection, the original message has been destroyed.
The sender has been notified.
The details of what was detected and the original message header are below.
-----------------------------------------------------------------------

ghjdh.exe e' infettato da W32/Gibe-F

Totale infezioni: 1"

===========================================
It does not take long , does it.
"Andrew Cerasuolo" <andrew@deakin.edu.au> wrote in message
news:3nau00ln8bveoltrso4cqq4hcktmvfgsnu@4ax.com...

Hi John,
Silicon Chip Mag May 1996 , has a gh voltage insulation tester which
can produce 100V,250V,500V,600V,1000V.
Ciao Andrew
On Wed, 21 Jan 2004 03:33:50 GMT, "John" <johnnyboy@not.dodo.com.au
wrote:

Has anyone any experience with a good, cheap insualtion tester. The old
megger with the handle used to work OK but I have not seen any of them
for a
while now. I think the regs say 500 volt.
John

 

[Bob Parker]

"John" <johnsjunk@dodo.com.au> wrote:

Bob,
Altronics have a Hung Chang 500V Q1240 for $95.00. Looks promising too.
Thanks, John

That's the one I've got. Works pretty well and also measures mains
voltages. I was assuming that like WES, Altronics had discontinued
selling it.
I see that WES have a Kyoritsu insulation tester (ICT3132) for $299
now, which can do 250/500/1000V tests plus continuity testing, with a
a load of approvals.

I used a new junk email address here less than 3 hours ago. I forgot to disguise it
and I have received this email twice.
===========================================
It does not take long , does it.

You're not wrong! If anyone's interested, Aussie company
Bluebottle (http://www.bluebottle.com) tells me that their free
challenge/response anti-spam service which has been dead in the water
since being brought down by spammer attacks last October is going back
online tomorrow.
In that time I mentally calculate that I've had to manually sort
through about 30K spams, wasting an entire day of my life doing it.
It's going to be SOOOO good to be spam-free again.

Cheers,
Bob

 

[Ross Herbert]

John,

This project was described in Electronics Australia May 1989 so if you
can lay your hands on that issue you can assess the degree of
dificulty.

Ross H

On Wed, 21 Jan 2004 20:14:42 GMT, "John" <johnnyboy@not.dodo.com.au>
wrote:

Dwayne,
What degree of difficulty is the megger kit? My eyes and hands are not what
they were.
For $59.00 it sounds just fine.
John
"Dwayne" <secretworks@hotmail.com> wrote in message
news:bul6vr$ar5$1@mws-stat-syd.cdn.telstra.com.au...
Altronics do a Megger kit, I built one and works great
has settings for 500v & 1000V tests.

Dwayne


John wrote in message <400df31d$1@news.comindico.com.au>...
Has anyone any experience with a good, cheap insualtion tester. The old
megger with the handle used to work OK but I have not seen any of them
for
a
while now. I think the regs say 500 volt.
John