Bushings & TerminationsHV Porcelain Bushings
Oil-impregnated paper or resin bushings for 36–550 kV line connections.
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Bushings & TerminationsLV Bushings
DIN-type porcelain or epoxy bushings, 1–3.6 kV, up to several kA.
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Bushings & TerminationsPlug-in / Elbow Bushings
Dead-break separable connectors for compact and RMU-fed transformers.
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Bushings & TerminationsEpoxy Monoblocks & Terminal Plates
Cast-resin multi-terminal blocks for distribution transformers.
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Bushings & TerminationsCable Boxes & Glands
Air- or oil-filled boxes terminating MV/LV cables at the tank.
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Bushings & TerminationsSurge Arresters
Metal-oxide arresters, 12–420 kV, protecting windings from surges.
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Tap-ChangersOn-Load Tap-Changer (OLTC)
Changes ratio under load; vacuum or oil diverter, motor-driven.
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Tap-ChangersDe-Energised Tap-Changer (DETC)
Off-circuit ratio adjustment, rotary or linear, padlockable.
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Tap-ChangersMotor Drive Units
Drives, position transmitters and controllers for OLTCs.
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Tap-ChangersOLTC Oil Filter Units
Keeps diverter oil clean, extends maintenance intervals.
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Protection & MonitoringBuchholz Relay
Gas- and surge-actuated relay between tank and conservator.
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Protection & MonitoringPressure Relief Device (PRD)
Spring-loaded valve venting sudden tank overpressure.
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Protection & MonitoringOil & Winding Temperature Indicators (OTI/WTI)
Dial thermometers with alarm/trip contacts.
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Protection & MonitoringOil Level Indicators
Magnetic float gauges for conservator and OLTC compartments.
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Protection & MonitoringSudden Pressure / Rapid Rise Relays
Detects fast internal pressure events.
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Protection & MonitoringOnline DGA Monitors
Continuous dissolved-gas analysis for fleet-critical units.
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Protection & MonitoringFibre-Optic Winding Sensors
Direct hot-spot measurement in windings.
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Protection & MonitoringMarshalling Boxes
Terminal cabinets collecting all monitoring wiring.
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CoolingRadiators
Pressed-steel panel radiators, bolt-on or welded, with valves.
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CoolingCorrugated / Fin-Wall Tanks
Flexible fin walls that cool and absorb oil expansion.
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CoolingCooling Fans
Axial fans for ONAF/OFAF ratings, with control cubicles.
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CoolingOil-to-Air / Oil-to-Water Coolers
Compact forced coolers for large or space-limited units.
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Insulation MaterialsPressboard (Transformerboard)
High-density cellulose board — barriers, cylinders, angle rings.
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Insulation MaterialsDiamond Dotted Paper (DDP)
Epoxy-dotted kraft paper bonding layer insulation.
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Insulation MaterialsCrepe Paper & Tubes
Conformable covering for leads and connections.
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Insulation MaterialsLaminated Wood
Clamping beams and support structures.
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Insulation MaterialsSpacers, Wedges & Cylinders
Machined pressboard forming cooling ducts and coil support.
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Insulation MaterialsNomex® / Aramid Papers
High-temperature insulation for dry-type and hybrid systems.
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Conductors & CoreCTC (Continuously Transposed Conductor)
Multi-strand transposed copper for low-loss large windings.
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Conductors & CorePaper-Covered Copper/Aluminium
Round and rectangular covered conductor for windings.
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Conductors & CoreEnamelled Wire
For small windings and dry-type transformers.
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Conductors & CoreCopper Foil & Busbar
LV foil windings and internal connections.
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Conductors & CoreCRGO Electrical Steel
Grain-oriented core steel — M4 to laser-scribed Hi-B grades.
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Conductors & CoreAmorphous Ribbon
Ultra-low-loss core material for distribution transformers.
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Oil, Fluids & PreservationMineral Transformer Oil
Naphthenic insulating oil to IEC 60296.
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Oil, Fluids & PreservationNatural & Synthetic Esters
Fire-safe, biodegradable fluids (K-class).
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Oil, Fluids & PreservationSilica-Gel Breathers
Dehydrating breathers, standard or self-regenerating.
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Oil, Fluids & PreservationAir Cell / Rubber Bags
Conservator bladders separating oil from atmosphere.
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Oil, Fluids & PreservationNitrogen Preservation Systems
Positive-pressure N₂ blankets for sealed units.
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Tank & MechanicalTanks & Conservators
Fabricated steel tanks, conservators and turrets.
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Tank & MechanicalValves
Drain, filter, radiator butterfly and sampling valves.
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Tank & MechanicalGaskets & O-Rings
Nitrile/cork and Viton sealing systems.
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Tank & MechanicalWheels & Skids
Bi-directional rollers and haulage skids.
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Tank & MechanicalCurrent Transformers (Bushing CTs)
Ring-type CTs for metering and protection.
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Tank & MechanicalControl & Cable Accessories
Lugs, terminal blocks, auxiliary relays, MCBs, wiring looms.
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