Re: Electrical safety (was EVrelated(Siemens Electronic Brake))

["Richard Furniss" <rfurniss@earthlink.net>]

"Lee Hart"


> With either a variac or a PFC20, you have great flexibility in the
> actual output voltage of the transformer; it doesn't have to be a
> standard 120vac or 240vac. This lets you use cheaper surplus
> transformers that nobody else wants (like the Brigar toroids).
>
> So I don't see the problem. Pick your input voltage and VA (power), and
> get one (or more) transformers to do the job. You have lots of choices.


That is an interesting suggestion that I never thought of ( get one (or
more) transformers to do the job) teach me more, can transformers be
paralleled if the are the same to increase total VA?

 Below is what I found so far, #1, the toroidal is the cheapest but
multitapped and step down, should be ok with a variac and PFC-50?

#5 is the most expensive and comes closet to what I need, not quite enough
VA for a PFC-50.

I'm open to suggestions if anybody has any other transformers or links.




http://brigarelectronics.com/
(#1) BANNER MAGNETICS - TOROIDAL POWER TRANSFORMER Multitapped 2KVA power
transformer intended for a high powered audio amplifier power supply. Great
for a +/- 60VDC application where EMI noise is a concern. Additional 12volt
@1 amp tersiary winding for powering lamps & meters. Input: 120Vac / 240VAC
50/60Hz Output: 86 volt @ 20 amp center tap, 12volt @ 1 amp Size: 5-1/2"
dia. x 3-1/2"H Weight: 16 lbs. PART # 159226 $59.95





http://www.aaaim.com/cgi-local/shop991/shop.pl/SID=455515589553/page=ULIS.ht
m#STR9852
(#2) 5 KVA EXTREME ISOLATION TRANSFORMER Xentec #EIT5.0-2 The inter-winding
capacitance is 0.001pf. Input 100, 120, 200, 220, 240, VAC 50/60 Hz. Output
120/240 VAC. Stock #STR2150 $395.00

(#3) 5 KVA TOPAZ LINE NOISE SUPPRESSING TRANSFORMERS Protect sensitive
equipment from th evoltage transients, spikes, and electrical "noise"
appearing on most commercial power lines. #91905-68. Input 220/440 VAC.
Output 120/440 VAC. Cpacitance 0.005 pF. Noise suppression 126 dB.
Dimensions: 6-3/4" high x 7-3/4" wide x 16-1/2" deep. Weight 95 lbs. Stock
#STR2101 $395.00

(#4) 5 KVA TOPAX, #91005-11. Input 120/240 VAC. Output 120/240 VAC.
Capcitance 0.005 pF. Noise suppression 126 dB. Dimensions: 6-3/4" high x
7-3/4" wide x 16-1/2" deep. Weight 95 lbs. Stock #STR8813 $395.00

(#5) 7.5 KVA ISOLATION TRANSFORMER ELGAR HIT #7.5-0.0005. Input 120/240 VAC.
Output 120/240 VAC50/60 Hz. Single phase. 146 dB at 0.0005 PF coupling
capacitance. Dimensions: 20" long x8" wide x 7" high.Weight 129 lbs. Stock
#STR9501 $495.00


 www.lasvegasev.com
Richard Furniss
Las Vegas, NV
1986 Mazda EX-7  192v