Cable Impedance and Unequal Sharing between Parallel Transformers
Cable or busduct impedance between each trans…
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Parallel Transformers with Different X/R Ratios
Different X/R ratios can produce different re…
阅读全文Circulating Current from Tap Mismatch in Parallel Transformers
A tap mismatch creates a secondary no-load vo…
阅读全文Unequal Transformer kVA Ratings in Parallel: Predicting Load Sharing
Unequal kVA transformers can share load accep…
阅读全文Parallel Transformers: A Pre-Connection Compatibility Checklist
Before transformers are paralleled, confirm r…
阅读全文Grounding Transformer plus Auxiliary Winding: Combining Functions Carefully
Combining a grounding transformer with an aux…
阅读全文Grounding Study Inputs for a Transformer-Fed LV System
A transformer-fed low-voltage grounding study…
阅读全文Earthing Switches and Transformer Neutral Disconnects: Define the Scope
Earthing switches and neutral disconnects def…
阅读全文Neutral Insulation Levels: Uniform versus Nonuniform Winding Insulation
Neutral insulation may be uniform with the li…
阅读全文Transformer Zero-Sequence Impedance: What to Request from the Manufacturer
Zero-sequence impedance is not interchangeabl…
阅读全文Two Neutral Grounding Points: Circulating-Current Questions
Two intentional neutral grounding points can …
阅读全文Ungrounded Systems: Transformer Questions for Ground-Fault Studies
An ungrounded system does not mean ground fau…
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