adding capacitors between L1 and L2
i have retrofit a 24x60 inch cnc and have it working great, i can only get single phase power here So needed to build a 7.5HP rotary phase converter, as a static converter will not run the VFD controllers built into the cnc. im at the point where i have added capacitors and balanced ( my input voltage is 245vac... when i start my RPC the draw amps spike to almost 100A for a split second. ) after tuning balancing the rpc , L1 and L2 are matched in voltage 242vac the ghost leg is 251vac when running,
so with no caps between L1 and L2 the startup amp is near 100 and L1 and L2 input at idol measure 8.7a
at this point i add a cap 40umf between L1 and L2, the startup draw in amps goes down to 80a for a split second, used to be 100ish
so when i add another 40umf for a total of 80umf the L1 and L2 input measures 2.5A at idol with no change at the rpc output
it seems to be running more efficiently with lower amperage at the input source
is this safe to keep adding caps between L1 and L2 ?
is this somthing i should do ?
i have retrofit a 24x60 inch cnc and have it working great, i can only get single phase power here So needed to build a 7.5HP rotary phase converter, as a static converter will not run the VFD controllers built into the cnc. im at the point where i have added capacitors and balanced ( my input voltage is 245vac... when i start my RPC the draw amps spike to almost 100A for a split second. ) after tuning balancing the rpc , L1 and L2 are matched in voltage 242vac the ghost leg is 251vac when running,
so with no caps between L1 and L2 the startup amp is near 100 and L1 and L2 input at idol measure 8.7a
at this point i add a cap 40umf between L1 and L2, the startup draw in amps goes down to 80a for a split second, used to be 100ish
so when i add another 40umf for a total of 80umf the L1 and L2 input measures 2.5A at idol with no change at the rpc output
it seems to be running more efficiently with lower amperage at the input source
is this safe to keep adding caps between L1 and L2 ?
is this somthing i should do ?