Overview

• 52kV and below power transformers provide reliable voltage transformation between transmission and distribution levels, engineered for high efficiency, low losses and robust insulation performance. Flexible configurations, cooling methods and monitoring options support utility, industrial and renewable projects with grid integration.

Application

• 52kV and below power transformers serve substations, industrial plants and renewable interconnections, stepping voltage between medium-voltage feeders and transmission lines. They enable reliable load growth and network reconfiguration, supporting flexible operating modes, on-load tap control and protection schemes aligned with regional standards.

Advantages

• 52kV and below power transformers offer optimized loss performance, robust short-circuit withstand and precise voltage regulation, reducing lifecycle ownership costs. Standardized designs simplify engineering, streamline maintenance and enhance fleet interchangeability while supporting digital monitoring for grid operators and asset management.

Feature

• The 52kV and below power transformer, the use of company- specific calculation and verification procedures, the transformer core, coils, active part, leading tanks and other components for a full range of optimized design and verification, to ensure product performance. Superior technology equipment, careful selection of materials, and efficient manufacturing make the transformer small, light weight, low loss, low PD, low noise and other characteristics of superior product quality, energy saving and environmental protection, reliable operation and effectively reduce the Product operating costs.

Environmental Conditions

• Type: outdoor

• Ambient temperature: max. Temperature: +50℃; min. temperature: -55℃

• Altitude: ≤1000m (temperature rise shall be corrected when 1000m)

• Relative humidity: ≤90% (25℃)

• Installation place: without corrosive gas and apparent fouling.

Fittings

Standard fittings	Optional Fittings
Primary bushings (OIP / RIP)	RTCC panel
Secondary bushings	Automatic voltage regulator (AVR)
Buchholz relay	Terminal connectors
Off circuit / On-load tap changer	Online dissolved gas analyzer (DGA)
Pressure relief device / explosion vent	Provision of Nitrogen injection fire protection system (NIFPS)
Thermometer	Aircell in Oil conservator
Silica gel breather	Aircell rupturing relay
Drain / Filter valves	Impact recorder
Oil level gauge	Smart breather
Rating & diagram plate	Sudden Pressure Relay
Lifting lugs	Oil filter unit for OLTC
Skid base / roller arrangement	Thermocycle Filter
Winding temperature indicator with alarm and trip contacts	Surge Arrester / Snubber circuit for supply terminals
Oil temperature indicator with alarm and trip contacts
Magnetic Level Gauge

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