励磁 is read as れいじ (reiji) and means excitation.
れいじ
reiji
れいじでんりゅう
excitation current
れいじき
exciter
れいじそん
excitation loss
はげます
to raise (one's voice)
はげむ
to work hard
はげまし
encouragement
はげみ
れいせいいちばん
giving cries of encouragement at a critical moment
れいきじょうたい
excited state
れいこう
strict observance (of rules, regulations, etc.)
れいしんそし
driven element (antenna)
はげみあい
competition