Drying Endpoints for Active Parts: Time Alone Is Not Acceptance
A drying endpoint should indicate that the ap…
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Vacuum Drying versus Vapour-Phase Drying: What the Buyer Should Verify
Vacuum drying and vapour-phase drying are pro…
阅读全文Aramid Insulation in Transformers: Define the Actual High-Temperature Scope
Aramid insulation can be part of a high-tempe…
阅读全文Thermally Upgraded Paper: Ratings Depend on the Insulation System
Thermally upgraded paper is a specified insul…
阅读全文Degree of Polymerization: What a Paper Sample Can Represent
When measured by IEC 60450, the reported quan…
阅读全文Transformer Paper Moisture: Why Oil Samples Are Only Part of the Evidence
An oil sample measures the liquid at a partic…
阅读全文Transformer Liquid Environmental Claims: Define Test Method and Conditions
Terms such as biodegradable, biobased, non-ha…
阅读全文Ester-Filled Transformers: Interpreting Dissolved-Gas Results with the Right Basis
Dissolved-gas analysis must be interpreted fo…
阅读全文Retrofill Projects: Why Replacing the Liquid Is a Design Review
Retrofilling replaces the insulating liquid i…
阅读全文Transformer Oil Compatibility when Topping Up
A top-up introduces a second material into an…
阅读全文Transformer Fluid Fire Point: Liquid Property versus Installation Approval
A fluid's fire point is a property measured u…
阅读全文Inhibited and Uninhibited Mineral Oil: Specify the Maintenance Philosophy
The distinction between inhibited and uninhib…
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