SSI America EPS2U manual AC Line Fast Transient Specification, AC Line Sag Transient Performance

				SSI
				EPS2U Power Supply Design Guide, V2.1
		Table 4: AC Line Sag Transient Performance
		AC Line Sag
Duration	Sag	Operating AC Voltage	Line Frequency	Performance Criteria
Continuous	10%	Nominal AC Voltage ranges	50/60 Hz	No loss of function or performance
0 to 1 AC	100%	Nominal AC Voltage ranges	50/60 Hz	No loss of function or performance
cycle
>1 AC cycle	>10%	Nominal AC Voltage ranges	50/60 Hz	Loss of function acceptable, self
				recoverable
		Table 5: AC Line Surge Transient Performance
		AC Line Surge
Duration	Surge	Operating AC Voltage	Line Frequency	Performance Criteria
Continuous	10%	Nominal AC Voltages	50/60 Hz	No loss of function or performance
0 to ½ AC	30%	Mid-point of nominal AC	50/60 Hz	No loss of function or performance
cycle		Voltages

5.8AC Line Fast Transient Specification

STATUS

Recommended

The power supply shall meet the EN61000-4-5directive and any additional requirements in IEC1000-4-5:1995and the Level 3 requirements for surge-withstand capability, with the following conditions and exceptions:

•These input transients must not cause any out-of-regulation conditions, such as overshoot and undershoot, nor must it cause any nuisance trips of any of the power supply protection circuits.

•The surge-withstand test must not produce damage to the power supply.

•The supply must meet surge-withstand test conditions under maximum and minimum DC-output load conditions.

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