Solar Lattice

High-voltage ride-through

ID: func:high-voltage-ride-through
IRI: https://solarlattice.org/kb/func/high-voltage-ride-through
Status: active
Also known as: HVRT, DHVT, High Voltage Ride Through (HVRT)
Category: Grid support
Function kind: grid-support

High-voltage ride-through lets an inverter or generator stay online and keep delivering output current while grid voltage is briefly above its preset high threshold, instead of tripping. Utilities can set their own limits. In PPL EU's settings, the high-voltage ride-through curve and the trip curve are the same.

<!-- review notes

sentence 2: support check: partial - PPL EU ride-through and trip curves being identical is stated, but the general claim that utilities can set their own limits is only implied by the utility-specific settings and country-specific notes. -->

Claims

`subclass_of`

c1 drafted · lead Voltage ride-through

HVRT is the high-voltage side of voltage ride-through; LVRT is the low-voltage side.

Conext CL125 Power Control App Note sec=h20 h=c1568a5f209f

`default_value`

c2 drafted · lead nominal 125 PERCENT

Scope: products Solectria PVI 20/25TL-480-R

Conditions: HVRTVoltPara first and second point, IEEE 1547-2018 and Rule 21 settings

PVI 20-25TL-480-R IOM DOCR-071030-A tbl=24 h=5e694f669b55

c3 drafted · lead nominal 0.16 SEC

Scope: products Solectria PVI 20/25TL-480-R; standard IEEE 1547-2018 proposed

Conditions: HVRTTimePara second point, IEEE 1547-2018 setting

PVI 20-25TL-480-R IOM DOCR-071030-A tbl=24 h=5e694f669b55

c4 drafted · lead nominal 0.11 SEC

Scope: products Solectria PVI 20/25TL-480-R; standard CA Rule 21 proposed

Conditions: HVRTTimePara second point, Rule 21 setting

PVI 20-25TL-480-R IOM DOCR-071030-A tbl=24 h=5e694f669b55

c6 verified · fact nominal 125 PERCENT

Scope: products CPS SCA36KTL-DO/US-480, CPS SCA50-60KTL-DO/US-480, CPS SCA25KTL-DO/US-208

Conditions: HVRTVolt first and second point, IEEE 1547-2018 and Rule 21 settings

CPS-SCA36-50-60KTL ops tbl=13 h=56689c6ea97f
CPS SCA25KTL-DO-US-208 User Manual Rev 1.2 tbl=32 h=34660d291706

verified by: review-workflowverified on: 2026-10-24

c7 verified · fact nominal 120 PERCENT

Scope: products CPS SCA36KTL-DO/US-480, CPS SCA50-60KTL-DO/US-480, CPS SCA25KTL-DO/US-208; standard ISO-NE default bulk system settings proposed

Conditions: HVRTVolt first and second point, ISO-NE setting

CPS-SCA36-50-60KTL ops tbl=13 h=56689c6ea97f
CPS SCA25KTL-DO-US-208 User Manual Rev 1.2 tbl=32 h=34660d291706

verified by: review-workflowverified on: 2026-10-24

c9 drafted · lead nominal 1.05 SEC

Scope: products CPS SCA36KTL-DO/US-480, CPS SCA50-60KTL-DO/US-480, CPS SCA25KTL-DO/US-208; standard ISO-NE default bulk system settings proposed

Conditions: HVRTTime seventh and eighth point, ISO-NE setting

CPS-SCA36-50-60KTL ops tbl=13 h=56689c6ea97f
CPS SCA25KTL-DO-US-208 User Manual Rev 1.2 tbl=32 h=34660d291706

`setting_range`

c5 drafted · lead 100–135 PERCENT

Scope: products CPS SCA36KTL-DO/US-480, CPS SCA50-60KTL-DO/US-480, CPS SCA25KTL-DO/US-208

Conditions: HVRTVolt first and second point, IEEE 1547-2018, Rule 21 and ISO-NE settings

CPS-SCA36-50-60KTL ops tbl=13 h=56689c6ea97f
CPS SCA25KTL-DO-US-208 User Manual Rev 1.2 tbl=32 h=34660d291706

c8 verified · fact 0–655 SEC

Scope: products CPS SCA36KTL-DO/US-480, CPS SCA50-60KTL-DO/US-480, CPS SCA25KTL-DO/US-208

Conditions: HVRTTime parameters points 1 to 8, all grid settings

CPS-SCA36-50-60KTL ops tbl=13 h=56689c6ea97f
CPS SCA25KTL-DO-US-208 User Manual Rev 1.2 tbl=32 h=34660d291706

verified by: review-workflowverified on: 2026-10-24

`trip_threshold`

c10 drafted · lead nominal 1.1 UNITLESS

Conditions: PPL EU OV1 shall-trip setting, per unit of nominal voltage; ride-through and trip curves overlap

DER Ride Through Settings [code/standard] tbl=3 h=55565681d7c1

review note: possible conflict with c12 (same source; check the conditions)

c12 drafted · lead nominal 1.2 UNITLESS

Conditions: PPL EU OV2 shall-trip setting, per unit of nominal voltage

DER Ride Through Settings [code/standard] tbl=3 h=55565681d7c1

review note: possible conflict with c10 (same source; check the conditions)

`trip_time`

c11 drafted · lead nominal 2.1 SEC

Conditions: PPL EU OV1 at 1.1 p.u.

DER Ride Through Settings [code/standard] tbl=3 h=55565681d7c1

review note: possible conflict with c13 (same source; check the conditions)

c13 drafted · lead nominal 0.16 SEC

Conditions: PPL EU OV2 at 1.2 p.u.

DER Ride Through Settings [code/standard] tbl=3 h=55565681d7c1

review note: possible conflict with c11 (same source; check the conditions)

Referenced by

Smart inverter related_to c8

Data