Forum Discussion
ralphnjoann
Oct 22, 2013Explorer
Thanks for taking the time to post all this information. It's something I want to try since I already have a HF 10 amp charger. I have a couple of questions. First, you talk extensively about a Variac and how to use it then you refer us to a website that sells a fixed output transformer that gives a 15 volt boost. Can this be used in place of the Variac? Second, your Variac is 300 watts. Would this item from Amazon be of sufficient wattage to work with the HF charger?
Variac
Note: The item description contains the following, "Input: 120 volt AC, Output: 0~130 volt AC, 3 Amp Slow Blow Fuse
Max VA: 300VA, 3 Amp. Max (surge), 1 year warranty
A rating of 300VA means that at 100volt, the unit can sustain at maximum 3amp. If at 120 volt the unit can sustain at 2.5amp
Note that most device have surge (when first turn on) much higher than operating amp rating.
E.g, motor with 3 amp rating may have over 5 amp surge, and you will need 5 amp variac."
Does this information have any bearing on this unit's suitability for the project?
Variac
Note: The item description contains the following, "Input: 120 volt AC, Output: 0~130 volt AC, 3 Amp Slow Blow Fuse
Max VA: 300VA, 3 Amp. Max (surge), 1 year warranty
A rating of 300VA means that at 100volt, the unit can sustain at maximum 3amp. If at 120 volt the unit can sustain at 2.5amp
Note that most device have surge (when first turn on) much higher than operating amp rating.
E.g, motor with 3 amp rating may have over 5 amp surge, and you will need 5 amp variac."
Does this information have any bearing on this unit's suitability for the project?
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