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Question:

What is the maximum current of the 800KVA transformer? What is the current? Is how to calculate, ask you master

What is the maximum current of the 800KVA transformer? What is the current? Is how to calculate, ask you master

Answer:

This type of capacity of the transformer for the distribution transformer, that is, step-down transformer. Voltage combination to 10 / 0.4 for multi-purpose. Transformer high side current 46.19A, low side current 1154.73A. Rated capacity = 1.732 * rated voltage * rated current
10KV / 0.4KV, 800KVA Transformer rated current is: High pressure side, I = 800 / (1.732 * 10) = 46.2A Low pressure side, I = 800 / (1.732 * 0.4) = 1154.7A Low side of the economic current is about: 1154.7 * 70% = 808.3A
The current of the transformer is determined by the load. 800KVA distribution transformer, the general high side is 10KV, low side is 0.4KV. Transformer rated current = capacity / (root 3 * rated voltage) 800KVA, high voltage side rated current = 46.2A. Low side = 1152A. Transformer has no load loss and load loss. When the no-load loss is equal to the load loss, the transformer is the most efficient. The general efficiency of the highest load in the 60 ~ 70% or so.

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