Trying to select MOVs based on this:
https://www.ieee.li/pdf/viewgraphs/selecting_the_appropriate_circuit_protection_component.pdf
Example in the above document:
Circuit conditions and requirements:
-120VAC circuit
-Current waveform for surge is 8x20us; voltage is 1.2x50μs
-Peak current during the surge is 3,000A
-Requirement is to survive 40 surges
-Other components (transformer, capacitors, etc.) are rated to withstand 1,000V maximum.
My Situation:
My circuit draws 12A (23A peak for about 10s) @ 120VAC.
Input voltages: 120-240, 1ph, 208-240VAC 3ph.
All components are rate 600V or higher.
Now, I'm missing the waveforms and the current surge and the number of required surges. These are used in the selection process. How do i specify those so that I can proceed with the selection process?
https://www.ieee.li/pdf/viewgraphs/selecting_the_appropriate_circuit_protection_component.pdf
Example in the above document:
Circuit conditions and requirements:
-120VAC circuit
-Current waveform for surge is 8x20us; voltage is 1.2x50μs
-Peak current during the surge is 3,000A
-Requirement is to survive 40 surges
-Other components (transformer, capacitors, etc.) are rated to withstand 1,000V maximum.
My Situation:
My circuit draws 12A (23A peak for about 10s) @ 120VAC.
Input voltages: 120-240, 1ph, 208-240VAC 3ph.
All components are rate 600V or higher.
Now, I'm missing the waveforms and the current surge and the number of required surges. These are used in the selection process. How do i specify those so that I can proceed with the selection process?