Three-phase Pole Transformer
A reliable team for the expansion and operation of overhead line extensions.
The three-phase pole-type transformer is designed for outdoor operation and is suitable for overhead distribution systems where safety is a determining factor. It is the most common transformer for urban and rural electrification in Mexico due to its ease of installation and the diverse variety of low- and high-voltage connections.
Allowing great flexibility when interconnecting the medium-voltage distribution network to low-voltage consumer services.
Where can I use this Transformer?
This type of transformer is applicable to distribution systems in small, medium and large industries.
General Information
Everything you need to know about this Transformer
Characteristics
• Manufacturing standard: NMX-J-116.
• Connection: Delta - Star or Star - Star.
• Operating frequency: 60 HZ.
• Temperature rise of 65 °C.
• Cooling type: ONAN.
• Mineral-type insulating liquid
• Nominal voltage of 2.5% each (2 up and 2 down). (Dielectric).
• Maximum ambient temperature of 40°C and average ambient temperature of 30°C.
Evidence
• Losses due to load and impedance.
• Ohmic resistance of the windings.
• Insulation resistance.
• No-load losses.
• Applied potential.
• Induced potential.
• Hermeticity.
Accessories
• Tap changer with external operating handle for manual operation without load.
• Characteristics plate.
• Tank ground connection plate.
• Solid porcelain type high voltage nozzle.
• Solid porcelain type low voltage nozzle.
• Hook ears for lifting the assembly.
• Combined drainage and sampling valve.
• Manual pressure relief valve.
• Sliding base.
• Coupling with plug for vacuum filling.
• Wafer-type radiators welded to the tank.
• Throats (if required).
Advantages
• Lower initial cost.
• Hermetically sealed.
• Quick installation.
• Space savings.
• Low maintenance.
• Reliable designs.
Capacities and Voltage
KVA
CLASS 15KV
CLASS 25KV
CLASS 34.5 KV
15
30
45
75
112.5
150
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