A 22-year-old Reston man was indicted yesterday by a Fairfax County Grand Jury on rape and robbery charges, the third set of charges against him in connection with a series of Reston-area rapes.

The grand jury yesterday named Raphael J. Boyd in the rape last November of a 24-year-old McLean woman.

The woman was walking in the vicinity of the Peach Orchard Apartments near Route 7 in McLean at about 2 a.m. Nov. 27, on her way home from work, when she was assaulted and dragged at knifepoint into an adjacent open field, according to Dan Gollhardt, an investigator in the Fairfax County Police sex crimes unit.

The assailant then bound the woman with rope and tape, gagged her with a cloth and stole her money before removing her clothes and raping her, Gollhardt said.Three of those charges carry possible life sentences.

A sentencing hearing in the case, originally scheduled for June 24, is expected to be postponed.

Earlier in May a jury found Boyd guilty of the rape, robbery and kidnapping of a 31-year-old vietnamese woman and recommended a sentence of life plus 30 years.

Sentencing is scheduled for July 1, at which time the judge can reduce, but not increase, the sentence recommended by the jury.

Mark J. Yeager, Boyd's court-appointed attorney for some of the earlier charges, says that he expects to be reappointed as Boyd's counsel in the additional charges stemming from yesterday's indictment.

If Boyd is found guilty of a third rape he would be required to spend the rest of his life in prison, under a year-old Virginia law that requires third-time felons in rape, murder and armed robbery charges to serve full terms without the chance of parole.