Tests

Tests Applied

The following routine and type tests stipulated by TS 267 are applied to transformers whose assembly is completed and oil filling is completed after drying.

Routine Tests

• Measuring winding resistances
• Checking polarity or connection group
• Measurement of short circuit voltage and load losses
• Measurement of no-load losses and current
• Induced voltage test
• Applied voltage test
• Measuring insulation resistances
• Measurement of Dc Insulation resistance

Special Tests

• Control of oil breakdown voltage
• Measurement of lost angle (tg) (DUBLE experiment)
• Measuring Paint Thickness

Type Tests

• Temperature increase (Warming experiment)
• Temperature increase (heating test)
• Full wave impact test Measurement of audible noise level
• boiler omar test) (for Hermetic Transformers
• Mechanical resistance test against short circuits

(This test is carried out abroad in CESI/ITALY, IPH/GERMANY test laboratories.)

Except for the mechanical strength test against short circuits, all other types of tests are carried out in our company's laboratory.