Vd4 vs1 10kv 12kv 630a 1000a 1600a 800a 2000a 2500a 3000a 30000a 300000a 2500a 30000a 3000a 2500a 3000a 300000a 2500a 3000a 300000a 2500a 30000a 3000a 30000a 2000a 2500a 30000a 3000a 3000a 300000a 2500a 30000a 300000a 2500a 300000a 3000a 2500a 30000a 300000a