U*I is the theoretical energy input for sparks out of which a fraction Fc goes to cathode side. Now, in reality not all sparks occur at U*I of input energy, but at a fraction of the same, say x. Thus the energy input to cathode will finally be x*Fc*U*I. Hence this x value is critical. I hope someone can shed some light on this.
The correct formulation is u (t) * i (t) over the full pulse duration. That not every pulse is the same, because different delays is logical, but can be compensated by an average delay time. This delay time is measured for gap control. Energy losses via the feed line and the contacts must be subtracted from the total energy (usually negligible). The remaining energy goes into the cathode case, the anode case and as a "loss" in the dielectric. The percentages are still going strong apart, depending on the literature. When cathode fall (pulses> 2 microseconds) can be assumed that 7 to 12% of total energy.
- Badges
- Science topic
- Similar topics
- Engineering
- Mechanical Engineering