ANHUNG Upgrades AMSTG-15/25-600 Deadbreak Oil-Immersed Bushing for 600A Pad-Mounted Transformers

Subheadline Eaton-equivalent design with thickened shield mesh and epoxy resin delivers reinforced insulation performance for American-style box transformers

YUEQING, China – July 20, 2026 – ANHUNG Electric Power Technology Co., Ltd. has officially rolled out the upgraded AMSTG-15/25-600 600A Deadbreak Oil-Immersed Bushing, a dedicated connection component engineered for 600A American-style pad-mounted transformers.

The product follows interchangeable dimensions matching Eaton’s equivalent bushing, enabling direct drop-in replacement for US-standard box transformers without on-site modification. Two targeted structural upgrades are adopted to improve long-term insulation reliability:

• · Thickened internal shielding mesh, which optimizes internal electric field uniformity and suppresses partial discharge
• · Thickened epoxy resin body, which enhances mechanical strength and resistance to thermal cycling in oil-immersed environments

All performance indicators are strictly controlled per factory technical specifications:

• · Rated Voltage: 25kV
• · Rated Current: 600A
• · Power Frequency Withstand Voltage: 57kV for 1 minute
• · Lightning Impulse Voltage: 125kV
• · Partial Discharge: ＜5pC at 22kV
• · Embedded copper terminals with 8μm oxidation-resistant silver plating
• · Inductive Capacitance: ＞18pF
• · Minimum Cross-sectional Area: ＞370mm²

Each unit is supplied as a complete kit with red protective cap, triangular mounting flange and sealing gasket, ready for immediate assembly on pad-mounted transformer tank walls. The product is mainly used in American-style box substations, residential power distribution and commercial grid access projects.

“ This upgrade is developed for the high-frequency operation demands of 600A pad-mounted transformers, ” said the R&D representative of ANHUNG. “ By reinforcing the shield mesh and epoxy structure on the basis of mature Eaton-compatible dimensions, we provide global customers with a cost-effective and higher-reliability alternative. ”

About ANHUNG Electric Power

ANHUNG Electric Power Technology Co., Ltd. is a Yueqing-based manufacturer specializing in high-voltage cable accessories, transformer bushings and power connection components, with full routine inspection before delivery and stable supply for overseas distribution and transformer OEM customers.