Three Phase Triplex Overhead Distribution Transformers

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Three-Phase Distribution Transformer

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Technical Specification Standards And Certificates Advantages And Applications

GENERAL TECHNICAL INFORMATION
• Power Range kVA: 3. 5, 10, 15, 25, 37, 50, 75, 100, 167, 250, 333, 500
• Temperature Rise: 55°C or 65°C
• Cooling type : ONAN, OA,
• Frequency: 50Hz or 60Hz
• Polarity : Additive or Subtractive
• Primary Voltage : 2400V through 34500 GrdY / 19920V
• Secondary Voltage : 120 / 240V, 240 / 480 V, 277V, 600V
• Insulation Class : 2.4Kv~34.5kV (150kV BIL) and below
• Taps: none, or as an option, 4 x 2,5% HV
• HV Bushings: cover and sidewall mounted available

STANDARD FEATURES
−−Core and coils designed for an optimum Total Ownership Cost (TOC)
−−Wound core with step-lap joints for increased efficiency and lower noise levels
−−“Low-high-low” windings for increased short circuit strength, efficiency and thermal strength
−−“Low-high-low” windings for increased short circuit strength, efficiency and thermal strength
−−Computer aided design for mechanical & electrical calculations (C.A.D.)
−−Paint system meeting or exceeding the performance of the IEEE C57.12.28 Standard
−−Lifting lugs meeting all of the requirements of the CSA C2.1-06 and CSA C2.2-06 Standard
−−Multiple cover clamps to ensure proper sealing and to mini-mize water retention on the cover edge
−−Cover or sidewall mounted high voltage bushing(s) as required
−−Low voltage spade or clamp type (basket) terminals as required
−−Provision for surge arrester bracket, bracket available as an option
−−Automatic self-resealing pressure relief valve

OPTIONAL PRODUCT ACCESSORIES
• Cold-Rolled Grain Oriented Silicon Steel Core (CRGO) or Amorphous Metal Core (AMDT)
• Stainless Steel Tanks and Cover
• Extra Creep Bushing
• Surge Arrester Bracket
• The CSP protection package consists of four related components: H.V Fuse Link, Secondary Breaker, Signal light, External Surge Arrester that work • together to provide complete self-contained protection against surge currents, short circuits and overloads.
• Units can be customized to specific requirements

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Three Phase Triplex Overhead Distribution Transformers

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Three Phase Oil immersed Transformer

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Three Phase Oil immersed Transformer

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Listed below are answers to our most commonly asked questions. Don't see your question?Contact our customer service team. We would be glad to assist you.

FAQ

Listed below are answers to our most commonly asked questions. Don't see your question?Contact our customer service team. We would be glad to assist you.

Can a transformer be used outdoors?

Yes, many transformers are designed for outdoor use, but they require waterproofing, dustproofing, and protective enclosures to withstand rain, dust, and temperature changes.

Is transformer noise normal?

A slight humming sound during operation is normal, caused by magnetization of the core and windings. However, if the noise is unusually loud or irregular, inspection is required.

What causes a transformer to overheat?

Common causes of transformer overheating include overloading, inadequate cooling, winding short circuits, or insulation aging. Prolonged overheating can shorten lifespan or cause failure.

How often should a transformer be maintained?

It is generally recommended to have a full inspection once a year, including insulation, cables, cooling systems, and oil quality tests to ensure safety and efficiency.

Can a transformer run continuously?

Yes, transformers are designed for long-term stable operation. As long as they run within rated voltage, load, and temperature limits, they can operate safely and continuously.

What is the main function of a transformer?

The main function of a transformer is to change voltage levels. It can step up voltage for long-distance transmission or step down voltage for safe use in equipment and households.

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