WEBVTT

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More tightening is not always better for

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a transformer core.

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Too little restraint allows laminations and joints

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to move.

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Too much pressure,

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or uneven pressure,

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can bend sheets and introduce harmful stress.

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The useful range comes from the core

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design.

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There is no universal clamping pressure for

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every core.

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The frame and pressure plates must spread

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the load across the packet.

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Apply the specified bolt torque or band

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tension in the defined sequence,

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and keep the record.

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Protect the insulation and cut edges during

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assembly.

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Recheck where the design and process require

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it.

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The aim is repeatable,

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controlled clamping, verified on the finished core.