- ISO 9001 · CE · IEC 60076
- SGS / BV Inspection
- Shipping to 15+ Countries

Transformer Series
Energy Storage Transformers


Transformer Series
Energy Storage Transformers
- Free on-site acceptance, commissioning and training
- One-year warranty from the date of delivery
- Full-wave impulse tested before it ships
Downloads
A storage transformer carries power in both directions and reverses quickly and often. Thermal design, harmonic tolerance and mechanical strength all have to be set for that duty, not for a conventional distribution profile.
Supplied standalone or integrated with the PCS into a containerised storage block.
- Designed for bidirectional power flow in charge and discharge duty
- Harmonic-tolerant for PCS-fed applications
- Thermal design set for frequent load reversal
- Available integrated with PCS into a containerised block
- Dry-type or oil-immersed construction
- Monitoring interface for the plant control system
Grid-scale battery storage, solar-plus-storage and wind-plus-storage plants, peak shaving and industrial and commercial storage installations.
Sourced from certified partner manufacturers and inspected against our own standard before dispatch. Routine tests — winding resistance, voltage ratio, no-load and load loss, dielectric strength and, on oil-filled units, leakage — are run on every transformer before release.
Third-party inspection by SGS, BV or another agency can be arranged on request, with the report issued before shipment. Designed and manufactured in compliance with IEC 60076, ANSI/IEEE and the destination market's requirements; CE documentation available. Warranty is 24 months from the date of shipment.
Also In Range
Related transformers

Zhongwei Willis (Shanghai) Electric Technology Co., Ltd. is a Shanghai-based supplier of power transmission and distribution equipment — transformers, substations and switchgear for clients across Africa, the Middle East, Southeast Asia and Central Asia, from 10 kV to 500 kV.
- ISO 9001
- CE
- IEC 60076
- SGS / BV
Products
Contact
- Room 21, Block D, 6/F, No. 1000 Zhenchen Road, Baoshan District, Shanghai, China
- +86 131 5355 3230
- WhatsApp +86 176 0546 5723
- 3373867314@qq.com
© 2025 Zhongwei Willis (Shanghai) Electric Technology Co., Ltd. All rights reserved.
Supplied to IEC 60076 · ANSI/IEEE · CE · ISO 9001


