Which tests can be performed on DTRs before and immediately after installation?

Distribution Transformers (DTRs) are critical components in the power distribution sector, responsible for stepping down high voltage to usable levels for end consumers. To ensure their reliability, efficiency, and longevity, various tests are conducted before and immediately after installation. These tests help in detecting any manufacturing defects, transportation damages, or installation errors.  

### Pre-Installation Tests (Factory and Site Testing)  

1. Routine Factory Tests:  
   - Resistance Measurement of Windings: Measures the DC resistance of primary and secondary windings to ensure proper conductor connections and ______ _____ _________ ________ _________ ______ ____ __________.
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