SATEC PM180 Operation Manual - Manual (Page 95)

‎Chapter 8 Configuring Recorders Configuring the EN50160 Power
Quality Recorder
PM180 Substation Automation Unit 93
Indicatives
Values
For the remaining characteristics of the voltage, by their unpredictable nature, the
standard gives only indicative values, which are intended to provide users with
information on the expected order of magnitude.
The following table gives the characteristics for which indicative values have been
specified by the standard.
Voltage
Characteristic Indicative values Observation
period
Voltage dips Less than 1 s, 60% depth Year
Short interruptions 70% less than 1 s Year
Long interruptions 10 to 50% less than 3 min Year
Temporary overvoltages Less than 1.5 kV RMS Year
Transient overvoltages Less than 6 kV peak Year
Resources
CENELEC publications:
EN 50160:1999 Voltage characteristics of electricity supplied by public distribution
systems
IEC publications:
IEC 61000-4-7:2002 Electromagnetic compatibility (EMC) – Part 4-7 Testing and
measurement techniques – General guide on harmonics and interharmonics
measurements and instrumentation, for power supply systems and equipment
connected thereto,
IEC 61000-4-15:2003 Electromagnetic compatibility (EMC) – Part 4 Testing and
measurement techniques – Section 15: Flickermeter – Functional and design
specifications
IEC 61000-4-30:2003 Electromagnetic compatibility (EMC)
– Part 4-30 Testing and
measurement techniques – Power quality measurement methods
Eurelectric (Union of the Electricity Industry) publications:
Application guide to the European Standard EN 50160 on Voltage characteristics of
electricity supplied by public distribution systems, Ref: 23002 Ren9530, July 1995
Measurement guide for voltage characteristics, Ref: 23002 Ren9531, July 1995
Voltage characteristic Compliance with stated
limits, % of time Observation
period
Power frequency 
1% for 95% of a week

1% for 99.5% of a year
+4/-6% for 100% of time
Week, year
Voltage variations (supply
voltage magnitude) 
10% Un for 95% of time Week
Rapid voltage changes 
4-5% Un (up to 10% Un) Day
Flicker (fluctuations of
voltage magnitude) Plt

1 for 95% of time Week
Voltage unbalance  2-3% for 95% of time Week
Harmonic voltage THD

8 for 95% of time Week
Interharmonic voltage To be defined Week
Mains signaling voltage Within “Meister-curve” for
99% of time Day