# Commission Regulation (EU) 2016/1447 of 26 August 2016 establishing a network code on requirements for grid connection of high voltage direct current systems and direct current-connected power park modules (Text with EEA relevance), Annex V: Voltage-against-time-profile referred to in Article 25

Extent: E+W+S+N.I.

Figure 6: Fault-ride-through profile of an HVDC converter station. The diagram represents the lower limit of a voltage-against-time profile at the connection point, expressed by the ratio of its actual value and its reference 1 pu value in per unit before, during and after a fault. Uret is the retained voltage at the connection point during a fault, tclear is the instant when the fault has been cleared, Urec1 and trec1 specify a point of lower limits of voltage recovery following fault clearance. Ublock is the blocking voltage at the connection point. The time values referred to are measured from tfault.
Voltage parameters [pu]
Time parameters [seconds]
Uret
0.00-0.30
tclear
0.14-0.25
Urec1
0.25-0.85
trec1
1.5-2.5
Urec2
0.85-0.90
trec2
Trec1-10.0
Table 7: Parameters for Figure 6 for the fault-ride-through capability of an HVDC converter station.

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Source: https://www.legislation.gov.uk/eur/2016/1447/annex/V (the official version)
Page: https://openlegislation.uk/eu-regulation-2016-1447/annex-V
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.