Shanghai Xinchang Material Recovery Co., Ltd. has been purchasing various transformers at high prices for a long time, including dry-type transformers, voltage regulating transformers, oil-immersed transformers, magnetic transformers, no-load voltage regulating transformers, box-type transformers, power plant transformers, special transformers, mining transformers, outdoor transformers, resin transformers, high-temperature-resistant transformers, tram transformers, box-type substations, special transformers, general transformers, distribution panels, low-voltage distribution panels, control cabinets, capacitor compensation cabinets, electrical equipment, waste wires and cables, electromechanical equipment, etc.
By function: step-down transformers, step-up transformers, tie transformers, and distribution transformers.
Single-phase Transformer, Three-phase Transformer
By winding configuration: Double-wound transformers, Triple-wound transformers, Autotransformers
Copper-wound transformers, Aluminum-wound transformers.
By insulation type of winding: Oil-Immersed Transformer, Dry-Type Transformer, Gas-Filled Transformer
1. Major repair projects include: opening the transformer oil tank cover and lifting the core for inspection.
Inspect the core, coil, tap switch, and leads.
Inspection covers, oil cushions, explosion-proof pipes, heat dissipation pipes, oil valves, and high and low-pressure sleeves.
Overhaul the cooling unit and oil filter unit.
Clean the exterior shell and repaint if necessary.
Inspect control measuring instruments, signals, and protective devices.
Transformer oil testing, filtration, and oil change.
Dry transformer core as necessary.
Assembled transformers.
Conduct specified measurements and experiments.
Regulation for transformer major overhaul cycle: The main transformers in power plants and sub-stations should undergo major overhaul within the first 5 years of operation and then every 5 to 10 years thereafter. The overhaul schedule within this range is determined based on preventive inspections and test results.
