* Nikkei eases 0.1 pct after 7-month high * Exporters gain on yen's fall to 9-month low vs dollar * Kansai Elec sheds, forecasts record losses for the year * Market participants warn of imminent correction By Mari Saito TOKYO, Feb 27 (Reuters) - Japan's Nikkei share average eased from a seven-month high on Monday, ending a three-day rally on profit taking after the index briefly topped 9,700, but remains on track for its best February since 1991. Investors upped their