A 1,000 kW, 60 Hz, eight-pole synchronous motor has a rated terminal voltage of 4,200 V, RMS, line-line. It has a field to phase mutual inductance of M = 182 mH, a direct axis synchronous inductance of Ld = 95.5 mH and a quadrature axis synchronous inductance of Lq = 63.7 mH. On no-load (open circuit) test, what value would we expect for field current to achieve rated voltage?