Assuming the compressor is 3Ø 3W, you don't utilize a neutral so there's really no 277V involved.
Assuming the compressor is 480V 3Ø 3W, and assuming it's not a dual voltage motor (480V 3Ø & 240V 3Ø), then with a 240V delta system I think you're pretty much looking at installing a transformer to match the supply voltage to the compressor.
Radar
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