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Products => Test Equipment => Topic started by: GAD on January 16, 2016, 07:06:07 am

Title: Vector-Vod ISO-V-AC III WP-32 Variable Isolation Transformer
Post by: GAD on January 16, 2016, 07:06:07 am

I scored this thing for a good price online and would love some input.

(http://www.gad.net/GAD/Photos/TestEquipment/5D3_4897_1600.jpg)

First the good - it seems to work! :) The Variac portion works great, and from what I can tell, the mains are indeed isolated as desired. Here are some gut shots:

(http://www.gad.net/GAD/Photos/TestEquipment/5D3_4940_1600.jpg)

(http://www.gad.net/GAD/Photos/TestEquipment/5D3_4944_1600.jpg)

(http://www.gad.net/GAD/Photos/TestEquipment/5D3_4965_1600.jpg)

(http://www.gad.net/GAD/Photos/TestEquipment/5D3_4938_1600.jpg)

My concern is that the three-prong outlets on the front are grounded to the chassis. I've read countless contradictory articles about why this is good vs. bad, but I bought it for isolation of DUT for my scope, so I'm thinking for that purpose it may not be the right solution.

Where I'm getting a bit confused is with these readings:

(http://www.gad.net/GAD/Photos/TestEquipment/5D3_4973_1600.jpg)

(http://www.gad.net/GAD/Photos/TestEquipment/5D3_4976_1600.jpg)

Both hot and neutral to ground are open until it's turned on, after which the meter will register 8M resistance.

(http://www.gad.net/GAD/Photos/TestEquipment/5D3_4969_1600.jpg)

Are these readings normal given that the hot/neutral are isolated but the ground/chassis is not? The concept kind of hurts my head and it's been a long day.

Title: Re: Vector-Vod ISO-V-AC III WP-32 Variable Isolation Transformer
Post by: GAD on January 16, 2016, 07:10:54 am

Oh, and if anyone has a manual I'd love to get a copy!

Title: Re: Vector-Vod ISO-V-AC III WP-32 Variable Isolation Transformer
Post by: GAD on January 18, 2016, 05:52:18 am

Bump

Title: Re: Vector-Vod ISO-V-AC III WP-32 Variable Isolation Transformer
Post by: TheSteve on January 18, 2016, 06:06:29 am

Never seen the unit before but I see it measures leakage of some sort, so that may explain the 8 meg ohms to the earth connection. It does indeed have an isolation transformer and a variac from the looks of it. Being the earth pins are all connected it wouldn't give you any isolation if you plugged a three pronged device into the output. You will need to a quick "mod" or two for it to fully isolated to meet your needs.

Title: Re: Vector-Vod ISO-V-AC III WP-32 Variable Isolation Transformer
Post by: Docholiday on July 17, 2017, 11:35:41 pm

did you ever get a manualmfor it?

Title: Re: Vector-Vod ISO-V-AC III WP-32 Variable Isolation Transformer
Post by: Charlesjohnson29 on December 24, 2017, 12:55:27 am

GAD
You pasted some great pictures of the Vector WP32 power supply.
I have one that is missing the 2 integrated circuits on the Right Hand side of the supply.
If possible could you supply the part no. of these two chips.
I know this is asking a lot but I would like to restore it.
Thanks Charles

Title: Re: Vector-Vod ISO-V-AC III WP-32 Variable Isolation Transformer
Post by: Audiocluster on February 28, 2018, 04:52:01 am

Did anyone say MANUAL ?? :P  Ask and you shall receive....eventually.

Thanks to Mars at Antique Radios

http://antiqueradios.com/forums/viewtopic.php?f=8&t=336335 (http://antiqueradios.com/forums/viewtopic.php?f=8&t=336335)

Send me a PM and I'll either email or send you gooDriv link (if I can get it to work) for "A nice clean PDF" of manual. Thanks again ........ Mr M !!!

Charles

Title: Re: Vector-Vod ISO-V-AC III WP-32 Variable Isolation Transformer
Post by: GAD on February 28, 2018, 01:22:27 pm

This fabulous - thanks!