TSTY Centralized Energy Storage Converter And Step Up System for Large Scale BESS

The TSTY centralized energy storage converter and step up system is a highly integrated power conversion and boosting solution designed for utility scale battery energy storage systems (BESS). This system efficiently stores green energy from solar or wind power and, when needed, converts DC battery power into grid compliant AC via a power conversion system (PCS).

Availability:



Inquire

TSTY storage system step up system PCS with transformer large scale BESS grid scale storage oil immersed step up transformer containerized PCS 10kV 35kV step up liquid-immersed transformer oil-immersed power station

Product Description

Technical Features

Product Advantages

Applications

Why TSTY

TSTY Centralized Energy Storage Converter and Step Up System – Large Scale Battery Storage Solution

The TSTY centralized energy storage converter and step up system is a highly integrated power conversion and boosting solution designed for utility scale battery energy storage systems (BESS). This system efficiently stores green energy from solar or wind power and, when needed, converts DC battery power into grid compliant AC via a power conversion system (PCS). The AC power is then stepped up by a three phase oil immersed step up transformer to medium voltage levels of 10kV or 35kV for stable transmission to the grid. The system is factory assembled in a containerized enclosure, combining the PCS, transformer, high voltage switchgear, low voltage distribution, and intelligent monitoring into one integrated unit. It effectively mitigates the intermittent and volatile nature of renewable energy generation, improving energy efficiency and grid stability.

Feature	Description
Centralized Design	High capacity single PCS or multiple PCS units in parallel feeding one centralized step up transformer – ideal for 10MW to 100MW+ BESS projects.
Oil Immersed Transformer	Three phase oil immersed step up transformer with ONAN/ONAF cooling, offering high cost effectiveness, excellent heat dissipation, and low noise.
High Protection	IP54 protection for HV/LV compartments, IP68 for oil tank – dustproof, waterproof, and submersible.
Extreme Environment Tolerance	Stable operation from -40°C to +55°C; altitude up to 2000m without derating. C5 anti corrosion coating for coastal and desert areas.
Bidirectional Power Conversion	Supports both grid to battery charging and battery to grid discharging – ideal for peak shaving, load shifting, frequency regulation, and renewable smoothing.
Intelligent Monitoring	Equipped with remote monitoring for voltage, current, temperature, oil level, and switch status. Supports SCADA, RS485, Modbus, and IEC 61850 protocols.
Factory Prefabricated	Manufacturing, assembly, wiring, and testing completed in the factory. Transported as a containerized unit, reducing on site installation time by over 50%.
Global Certifications	CE, IEC, UL, ISO, SASO certified – compliant with international standards for smooth project acceptance.

High Integration & Space Saving – Combines PCS, transformer, switchgear, and monitoring in one containerized unit, reducing footprint by up to 50% compared to traditional solutions.
Fast Deployment – Factory pre assembled and tested, on site work limited to pad preparation and cable connection – commissioning time reduced by approximately 50%.
Simple Maintenance – Unattended operation supported by remote monitoring; no dedicated personnel required on site.
High Safety – Oil immersed load switch with full range fuses; flame retardant transformer oil; optional automatic fire extinguishing devices.
Low Loss & High Efficiency – Amorphous alloy or high efficiency silicon steel core reduces no load losses by over 30%.
Strong Environmental Adaptability – Special shot blasting and anti corrosion treatment resists UV, salt spray, sandstorms, and extreme temperatures.

The TSTY centralized energy storage converter and step up system is widely deployed in the following scenarios:

Grid Scale Energy Storage – Utility owned BESS for frequency regulation, spinning reserve, voltage support, and peak shaving.
Renewable Power Plants – Solar and wind farms with integrated storage to smooth output fluctuations and improve grid compliance.
Commercial and Industrial Storage – Factories, data centers, and shopping malls for peak valley arbitrage and demand charge reduction.
Microgrids and Off Grid Systems – Islands, mining sites, and remote villages supporting solar storage diesel hybrid operation.
Emergency Backup – Critical facilities requiring instant backup power during grid outages.

30+ Years of Manufacturing Excellence – A national high tech enterprise with over three decades of power equipment expertise.
250,000㎡ Smart Factory – Equipped with 5G+ digital intelligent workshops, achieving a 99.9% product qualification rate.
International Certifications – CE, IEC, UL, ISO, SASO certified, ensuring global market access.
Global Track Record – Products exported to 80+ countries, with overseas offices in Zambia, Ethiopia, Kazakhstan, Colombia, and Italy for local technical support.

Contact TSTY with your BESS project specifications (capacity, duration, grid voltage, site conditions) – our engineering team will provide a customized solution and detailed quotation.