BLFW 40.5KV 100A-4L High Voltage Bushing (4-Pole Long Creepage)

BLFW 40.5KV 100A-4L is a 40.5kV rated, 100A, 4-pole (4-circuit), long-creepage (L-type) high voltage bushing, designed for transformers, switchgears, compact substations and wall-through applications. It provides reliable insulation and conductive connection in indoor/outdoor and heavily polluted environments.Featuring high-strength porcelain housing and aluminum alloy flanges, optimized electric field design, low partial discharge, excellent sealing and anti-aging performance, it is ideal for harsh conditions including high pollution and high altitude.

Model Explanation

• BLFW: Series (Transformer/Through-Wall Bushing)
• 40.5KV: Rated Voltage 40.5kV (35kV system)
• 100A: Rated Current 100A
• 4: 4-Pole / 4-Circuit
• L: Long Creepage Distance (Anti-Pollution)

Key Specifications

• Rated Voltage: 40.5kV
• Rated Current: 100A
• Poles: 4-Pole (4L)
• Insulation: Porcelain / Composite
• Creepage: Long (L-type), for Pollution Level Ⅲ/Ⅳ
• Power Frequency Withstand: 95kV (dry); 80kV (wet)
• Lightning Impulse: 185kV (peak)
• Partial Discharge: ≤10pC
• Protection: Leak-proof, anti-vibration, corrosion resistant
• Application: Indoor, Outdoor, Transformer, Switchgear

Key Features

• 4-Pole Integrated: Compact 4-circuit design, space-saving
• Long Creepage (L): Strong anti-pollution for coastal/industrial areas
• High Strength Porcelain: Thermal shock resistant, durable
• Perfect Sealing: Double-gasket flange, no leakage, low maintenance
• Optimized Electric Field: Low PD, stable and safe
• High Interchangeability: Replaces BFW/BLF series

Applications

• 35kV/40.5kV Transformers & Compact Substations
• HV Switchgear, Ring Main Units, GIS Wall-Through
• Small Power Stations, Solar/Wind Collector Stations
• Light-Load Distribution, Industrial & Coastal Projects

Why Choose Us

We specialize in BLFW/BFW 40.5kV bushings (50A–3150A, 2–4 poles, standard/L-type). Full range, certified to IEC/GB, OEM customization, fast delivery. Stable supply for switchgear builders, transformer factories and EPC contractors worldwide.