The regulatory view on voltage dip immunity

• Regulators are concerned with voltage dips due to high costs involved - scope and consequences can be reduced • A two dimensional aspect (depth and duration) is probably adequate for regulatory purposes • Important to focus on causes • Cost estimates should be improved and include more countries • Compatibility curves (i.e. limits) should be developed taking into account, inter alia, various equipments´ tolerances (i.e. immunity voltage tests) • Equipment should be tested for realistic supply situations