SOPProcessESS / PCSCN → BRLFPSungrow PowerTitan2.0Sungrow ST2752UX

ESS PCS Grid-Fault Ride-Through Test — CN→BR Corridor (LFP, Vertical)

Verdict (first 100 words): This SOP delivers a 14-day, IEC 62933-5-2-based LVRT/HVRT acceptance test on Power Conversion System units arriving on the CN→BR corridor, with a documented release-or-quarantine decision by D+12. Equipment: Sungrow PowerTitan2.0 PCS (1500 V DC; -30 to 50 °C operating envelope) coupled with the Sungrow ST2752UX liquid-cooled LFP battery container (2752 kWh per unit, 1500 V DC). Horizon: D+0 arrival to D+14 client notification. Evidence-date: 2026-09-22. Limitation: HS code, ICMS, PIS/COFINS, and Siscomex duty rates are not hardcoded — they must be looked up at booking on the Brazil Siscomex portal. Model-specific torque, SOC window, and DC voltage limits below are taken from the OEM product page and must be re-confirmed against the shipment-specific Sungrow PowerTitan2.0 Service Manual revision attached at RFQ.

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1. Scope and Applicability

This procedure applies to Sungrow PowerTitan2.0 PCS units and associated Sungrow ST2752UX liquid-cooled LFP battery containers received under TradVolt's China-to-Brazil (CN→BR) corridor service. Sungrow PowerTitan2.0 is published as a 2.5 MW / 5 MWh PCS-coupled BESS in a 20-ft container, 1500 V DC, operating -30 to 50 °C [Src: Sungrow PowerTitan2.0 product page]. The ST2752UX battery container is published at 2752 kWh stored energy, 1500 V DC, operating -30 to 50 °C [Src: Sungrow ST2752UX product page].

It governs the on-arrival grid-fault ride-through acceptance test required before site commissioning in Brazil.

The procedure references the following allow-listed standards and documents only. Any local deviation must be filed as an addendum referenced against the same source.

• IEC 62933-2-1 — Safety considerations for BESS, Part 2-1 [Src: IEC Webstore | URL: https://webstore.iec.ch/ — cite IEC 62933-2-1:2017/AMD1:2024 in full | accessed 2026-09-22]
• IEC 62933-5-2 — BESS safety requirements for grid-integrated systems [Src: IEC Webstore | URL: https://webstore.iec.ch/ — cite IEC 62933-5-2:2023 in full | accessed 2026-09-22]
• IEC 62477 — Power electronic converter systems safety [Src: IEC Webstore | URL: https://webstore.iec.ch/ — cite IEC 62477-1:2022/AMD1:2024 in full | accessed 2026-09-22]
• UL 9540 — Energy Storage Systems and Equipment [Src: UL Solutions | URL: https://www.ul.com/services/energy-storage-system-testing-and-certification | accessed 2026-09-22]
• ISO 2859-1:1999 — Sampling procedures by attributes, AQL [Src: ISO | URL: https://www.iso.org/search.html?q=2859 | accessed 2026-09-22]
• ICC Incoterms® 2020 [Src: ICC | URL: https://iccwbo.org/business-solutions/incoterms-rules/incoterms-2020/ | accessed 2026-09-22]
• FIATA transport documents framework [Src: FIATA | URL: https://fiata.org/ | accessed 2026-09-22]
• Brazil Siscomex / Receita Federal import portal [Src: Receita Federal do Brasil | URL: https://portalunico.siscomex.gov.br/portal/ | accessed 2026-09-22]
• China GACC customs portal [Src: General Administration of Customs of China | URL: http://english.customs.gov.cn/ | accessed 2026-09-22]
• Sungrow PowerTitan2.0 + ST2752UX OEM product pages (cited inline; shipment-specific Service Manual revision to be attached at RFQ stage) [Src: PowerTitan2.0 · ST2752UX | accessed 2026-09-22]

2. Step Sequence

3. Document Checklist (literal filenames)

Each shipment handled under this SOP must produce the following artefacts with the filename convention shown. Filenames are literal; do not abbreviate.

Note on D4: the Sungrow PowerTitan2.0 + ST2752UX Service Manual revision is not yet attached. It is to be supplied per shipment at the RFQ stage and added to the Compliance Pack before Step 4 begins. Until then, the public Sungrow product pages cited inline stand as the design-intent reference.

4. Timeline with Dependencies

Slot legend: "Confirmed" = internal TradVolt activity under our control. "Indicative" = depends on Brazilian customs clearance time or carrier schedule and is therefore variable.

5. Cost Slots

6. Duty / HS Code Block (REQUIRED — lookup at booking)

Disclaimer — duty and HS block: HS classifications and applicable import duty, ICMS, PIS, COFINS, and anti-dumping rates are not hardcoded in this SOP. They must be looked up against the official Siscomex Portal Único / Receita Federal at the time of booking, against the exact OEM part description, technical sheet, and Mercosur Common Nomenclature (NCM) in force [Src: Siscomex Portal Único]. Rates change periodically and depend on tariff regime (general, preferential Mercosur/China, or special Ex-Tarifário regime where applicable). TradVolt accepts no liability for rates applied without current official verification.

7. Acceptance Criteria

• PCS must remain grid-connected (no trip) for the LVRT and HVRT profiles specified in IEC 62933-5-2 and the Sungrow PowerTitan2.0 datasheet at 1500 V DC [Src: IEC 62933-5-2 via IEC Webstore · Sungrow PowerTitan2.0 | accessed 2026-09-22].
• Reactive current injection during fault must fall within the envelope published in the Sungrow PowerTitan2.0 datasheet (max AC output 2520 kW) [Src: Sungrow PowerTitan2.0 product page | accessed 2026-09-22].
• Post-fault active power recovery time must be within the value declared in the Sungrow PowerTitan2.0 Service Manual revision in force for this shipment (datasheet to be attached at RFQ stage). Until the shipment-specific manual is attached, the public Sungrow product page stands as the design-intent reference [Src: Sungrow PowerTitan2.0].
• Lot sampling per ISO 2859-1:1999 must yield zero critical defects; AQL level chosen is recorded on the sampling sheet [Src: ISO 2859-1:1999 via ISO search | accessed 2026-09-22].
• Document pack completeness must satisfy the filename list in §3 with no missing artefacts.

8. Roles and Responsibilities

• Logistics Coordinator — owns receipt, GRN, and Incoterms® 2020 verification [Src: ICC Incoterms 2020].
• Customs Broker — owns Siscomex DI registration and FIATA document set [Src: FIATA · Siscomex Portal Único].
• Workshop Supervisor — owns staging and Sungrow PowerTitan2.0 + ST2752UX Service Manual custody.
• Safety Officer — owns pre-test safety sign-off per UL 9540 [Src: UL energy-storage certification].
• Test Engineer — owns simulator configuration, execution, and raw capture per IEC 62933-5-2.
• Quality Engineer — owns report, ISO 2859-1:1999 sampling, and disposition.
• Document Controller — owns archiving, checksum, and ERP logging.
• Operations Manager — owns release / quarantine decision and client notification.

9. Exceptions and Non-Conformities

Any failure of the acceptance criteria in §7 results in a Non-Conformity Report (NCR). The lot is quarantined in the bonded area until root cause is filed and a corrective action is approved. Re-test is permitted only after firmware or hardware rework documented against the Sungrow PowerTitan2.0 Service Manual revision in force for this shipment (datasheet to be attached at RFQ stage; until then, public Sungrow PowerTitan2.0 product page stands as the design-intent reference).

10. Call to Action

For shipments covered by this SOP, TradVolt issues a quotation within 48 hours of receiving the RFQ pack (commercial invoice draft, Sungrow PowerTitan2.0 datasheet, Sungrow ST2752UX datasheet, packing list).

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© TradVolt. Sources cited are allow-listed: IEC, UL Solutions, ISO, ICC Incoterms® 2020, FIATA, Receita Federal do Brasil / Siscomex Portal Único, GACC, and Sungrow-issued PowerTitan2.0 / ST2752UX product pages. Last reviewed 2026-09-22.