Chile (NTSyCS) — ride-through requirements

The LVRT, HVRT envelopes a grid-scale battery must meet under Chile (NTSyCS) (Chile), digitized breakpoint by breakpoint and checked against the clause it came from.

By Sergey Syrvachev — Director of Product Engineering, grid-scale BESS · 10+ GWh delivered

Part of: the grid-code ride-through chart — compare this against 63 other standards in 42 countries.

What this is, and is not. A reading aid compiled from the clause cited below — not a compliance document. The primary text governs. Every value here was read from a current primary source.

Breakpoints

Times are seconds from the start of the disturbance. Voltage is per-unit of nominal; frequency in hertz. An LVRT curve is a lower boundary (stay connected while voltage is on or above it), an HVRT curve an upper boundary, and FRT gives the band between its High and Low boundaries.

Event Duty Breakpoints Status
low-voltage ride-through (LVRT) ride-through 0.001s → 0 pu; 0.14s → 0 pu; 0.141s → 0.067 pu; 0.283s → 0.2 pu; 0.427s → 0.333 pu; 0.57s → 0.467 pu; 0.713s → 0.6 pu; 0.857s → 0.733 pu; 1s → 0.8 pu verified
high-voltage ride-through (HVRT) ride-through 0.001s → 1.2 pu; 1s → 1.2 pu; 1.001s → 1.1 pu verified

Where these values come from

  • LVRT CNE Anexo Tecnico 'Exigencias Minimas de Instalaciones Basadas en Convertidores que se Conecten al SEN' (Res. Ex. 45, 28-01-2026), Art. 3-1(i) + Figura 1 (IBR GFM) and Art. 4-1(b) + Figura 2 (IBR GFL): T0 = 0 ms, T1 = max fault-clearing time per Art. 5-40 NTSyCS, T2 = T1 + 20 ms, T3 = 1000 ms, recovery boundary 0.80 pu. NTSyCS Art. 5-40: 120 ms for >= 200 kV, 400 ms for < 200 kV. Same shape as the superseded NTSyCS Art. 3-7.
  • HVRT CNE Anexo Tecnico IBR (Res. Ex. 45, 28-01-2026), Art. 3-1(i) for IBR GFM and Art. 4-1(b) for IBR GFL: 'En caso de sobretensiones mayores a 1,1 y menores o iguales a 1,2 por unidad, la IBR ... debera operar de manera continua e ininterrumpida durante al menos 1 segundo.'.

Last checked against the source document on .

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