ABB RESIBLOC® dry type transformers offer a flexible, reliable and environmentally safe design for a wide range of applications beyond just distribution duty, and can withstand heavy loads and extreme temperatures
ABB’s RESIBLOC® design provides a safe, reliable MV (medium voltage) transformer, conforming to IEC 60076-11 and most worldwide standards, for a wide range of applications. RESIBLOC transformers are capable of meeting exacting performance requirements, whilst providing a non-flammable environmentally safe, maintenance-free product.
RESIBLOC transformers are made of pure epoxy resin reinforced with glass-fibre rovings, a material of enormous strength that enables them to withstand extreme mechanical stresses and thermal shocks from severe climates, regular cyclic loading and short circuit forces. They are designed and tested to function at ambient temperatures as low as -60ºC, or beyond 50ºC. RESIBLOC transformers are non-explosive, non-toxic, self extinguishing and are 100 percent moisture-proof, unaffected by freezing conditions or chemicals.
RESIBLOC transformers are produced without the use of moulds. Instead, their coils are manufactured on numerically controlled winding machines, so they can be customised to meet exact customer specifications and requirements including losses, impedances or dimensions. Typically, this design flexibility can be used to produce a transformer to just the right size, able to pass through a restricted access hatch or doorway without the need to dismantle it, or to function in an area of restricted height. RESIBLOC transformers are used indoor and outdoors, with enclosures available to suit most worldwide demands, and require no vaults or containment dikes, sprinklers or other costly fire suppression systems
RESIBLOC transformers are often used in variable frequency drives (VFD) and traction applications, where sudden cyclic loads and harmonics are applied and multiple windings solutions are required. RESIBLOC transformers with on load tap changers are frequently used in countries with irregular voltage systems. A wide range of additional equipment is available including earthing switches, load or no-load break switches and fuses etc to providing almost a small sub-station. Other variations include single-phase 3-winding transformers, transformers with special terminal arrangements, cable supports or flange connections to match any busbar systems, built in CT’s, additional NER, or similar units and purpose-used extras such as Castell locks.
RESIBLOC technical data
Power rating (AN) 250kVA to 40,000kVA
Rated voltage up to 45kV