SN EN 61000-3-3 : 1995 AMD 2 2005
Current
The latest, up-to-date edition.
ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 3: LIMITS - SECTION 3: LIMITATION OF VOLTAGE FLUCTUATIONS AND FLICKER IN LOW-VOLTAGE SUPPLY SYSTEMS FOR EQUIPMENT WITH RATED CURRENT 16 A
01-12-2013
Committees responsible
National foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
3.1 R.M.S. voltage shape, U(t)
3.2 Voltage change characteristic, delta U(t)
3.3 Maximum voltage change, delta U max
3.4 Steady-state voltage change, delta U c
3.5 Voltage fluctuation
3.6 Flicker
3.7 Short-term flicker indicator, P[st]
3.8 Long-term flicker indicator, P[lt]
3.9 Flickermeter
3.10 Flicker impression time, tf
4 Assessment of voltage fluctuations and flicker
4.1 Assessment of a relative voltage change, "d"
4.2 Assessment of the short-term flicker value, P[st]
4.2.1 Flickermeter
4.2.2 Simulation method
4.2.3 Analytical method
4.2.3.1 Description of the analytical
method
4.2.3.2 Shape factor
4.2.4 Use of Pst = 1 curve
4.3 Assessment of long-term flicker value, P[lt]
5 Limits
6 Test conditions
6.1 General
6.2 Measurement accuracy
6.3 Test supply voltage
6.4 Reference impedance
6.5 Observation period
6.6 General test conditions
Annex
A Application of limits and type test conditions for
specific equipment
ZA (normative) Other international publications
quoted in this standard with the reference of the
relevant European publications
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