198-242VAC 80VA MAX

[Pahoa96778]

Hi everyone. I have a piece of test equipment from China and need a step-up transformer. Ratings on the unit at the plug state 198-242VAC, 80VA MAX. If I'm doing the math right I could easily get away with using a 110-120VAC to 220-240VAC rated @ 500W MAX. Am I right?

 

[picbits]

That should work fine.

 

[Pahoa96778]

That should work fine.

Thanks so much

 

[picbits]

Just be a little wary that if you are on a 60Hz frequency, the equipment may not function correctly if it uses the 50Hz for timing or similar. If it states 50-60Hz then it should be fine

 

[Pahoa96778]

Yes it says 50-60Hz
Thanks

 

[ronsimpson]

When I needed a 110 to 220 transformer I also needed more functions so......
What I have has 110/220 in, 110/220 out + isolation.
I use the isolation more than anything. Some transformers do not have isolation.
Also many transformers have a way to get slightly more and slightly less than normal voltages. When I test power supplies I want to see that they not only work at 110 but 'low line' and 'high line' 110 and 220.

Your idea of using 80 watts from a 500 watt transformer is good if you can afford it. Using 80 watts from a 100 watt transformer will cause the voltage to sag some. The small transformers are 'soft'. Many transformers, when run at full power, will be over 100C. HOT

 

[KeepItSimpleStupid]

<self-deleted>