2000 kVA Oil-Immersed Distribution Transformer

2000 kVA Oil-Immersed Distribution Transformer is specified for 2000 kVA (2 MVA) oil-immersed distribution service. It uses 11kV / 22kV / 33kV primary voltage. It uses ONAN (Standard) / ONAF (Optional +25%) cooling. Engineering details address critical Power Backbone for High-Demand Nodes, construction, application context, and electrical data for project selection.

Critical Power Backbone for High-Demand Nodes

For this 2000 kVA rating, critical power backbone for high-demand nodes affects how the transformer is selected, protected, and operated in the field.

• Is a powerhouse engineered for large-scale industrial loads and critical infrastructure.
• Delivering a massive continuous current of approximately 2886 Amps (at 400V), this rating is typically deployed as the primary incomer for facilities where power interruption is not an option, such as Tier 3 data centers or continuous-process chemical plants.
• As a heavy-duty oil immersed transformer, its thermal mass provides a significant advantage over dry-type equivalents.
• The large volume of mineral oil acts as a thermal buffer, allowing the transformer to withstand temporary overload spikes (e.g., during multiple motor startups) without rapid temperature escalation.
• 2000 kVA oil immersed transformer powering critical infrastructure and chemical processing plants.

Short-Circuit Management: The 6% Impedance Standard

The short-circuit management: the 6% impedance standard details below highlight design choices that matter during continuous distribution service.

• At 2 MVA, the potential fault current can exceed the breaking capacity of standard Low Voltage circuit breakers.
• To mitigate this risk, the 2000 kVA model is optimized with a Short Circuit Impedance (Uk) of 6.0% (standardized upgrade from the 5% used in smaller units).
• Fault Limitation: This higher impedance acts as a choke, restricting the short-circuit current to manageable levels (< 50kA), thereby protecting your downstream switchgear and busbars from catastrophic mechanical failure.

Stray Loss Control & Magnetic Shielding

These stray loss control and magnetic shielding points connect the electrical rating with grid conditions, downstream equipment, and maintenance expectations.

• In a high-capacity 2000 kva oil filled transformer, the leakage flux from the windings can induce eddy currents in the tank walls, causing local overheating.
• Internal Shielding: To prevent this, we install magnetic shunts (packets of silicon steel laminations) on the inner tank walls.
• This channels the stray flux safely, reducing tank losses and preventing the paint from peeling due to localized hot spots.

Installation & Connectivity

Application guidance links the transformer rating with the substations, industrial loads, and site conditions where it is normally used.

• Installing a 2 MVA unit requires specific engineering considerations due to the sheer magnitude of the current: Busbar Trunking Interface: Cable connection is virtually impossible at 2900 Amps.
• The LV throat of this transformer is fitted with a custom flange designed to mate directly with Copper Busbar Trunking Systems (BBT), ensuring a low-resistance connection to the Main Distribution Board.
• Vibration Isolation: Due to the massive core weight, the unit is typically mounted on anti-vibration pads or rails to prevent 100Hz structure-borne noise from transmitting into the building foundation.

Electrical and Mechanical Data

The electrical data summarizes the main values needed for project comparison and project comparison.

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