OK.. So I want to make a Very high power Variable test Load I can use for AC and DC.
See this
I am gonna get 10 pieces. So I can test Amps and Supplies and load transformers to find there capacity.
I can series / Parallel them to get the desired value and Power.
To get other values I intend to series connect a 100Ω 100W Wire wound pot so I can get other values besides that from series or parallel connecting the 8Ω ones.
I went for the 8Ω cause I can make 2Ω or 4Ω high power easily to test amps which is my primary concern. I need to measure amps without deafening me
And to widen the test unit I intend to measure my Tx for currents like 10A at around 70VAC. I would need 7Ω, 700W. So 8Ω,1000W would be close enuf for practical needs.
I need an advice on a rheostat value to get odd values. I will connect the rheostat to the resistors in series if needed and vary to get the desired R Load value.
What would you suggest. What I had in mind is this.
Will it do or do I need a higher power or resistance or lower Ω with higher power
I am asking cause I know there are those who might have done this.
My applications will be testing
1. Amps of around 800W or so Max.
2. Testing PSU's of 80V @ 10 amps max
3. Transformers 80V @ 10 Amps max.
See this
I am gonna get 10 pieces. So I can test Amps and Supplies and load transformers to find there capacity.
I can series / Parallel them to get the desired value and Power.
To get other values I intend to series connect a 100Ω 100W Wire wound pot so I can get other values besides that from series or parallel connecting the 8Ω ones.
I went for the 8Ω cause I can make 2Ω or 4Ω high power easily to test amps which is my primary concern. I need to measure amps without deafening me
And to widen the test unit I intend to measure my Tx for currents like 10A at around 70VAC. I would need 7Ω, 700W. So 8Ω,1000W would be close enuf for practical needs.
I need an advice on a rheostat value to get odd values. I will connect the rheostat to the resistors in series if needed and vary to get the desired R Load value.
What would you suggest. What I had in mind is this.
Will it do or do I need a higher power or resistance or lower Ω with higher power
I am asking cause I know there are those who might have done this.
My applications will be testing
1. Amps of around 800W or so Max.
2. Testing PSU's of 80V @ 10 amps max
3. Transformers 80V @ 10 Amps max.