China Professional Handheld Transformer Turns Ratio Tester Manufacturer Customized Portable TTR Testing Solution for Global Power Industry

The SXBB Three Phase Transformer Turns Ratio Tester is designed for engineers who require accurate transformer measurement during commissioning, inspection and maintenance.

Transformer ratio testing is a fundamental electrical test used to verify transformer winding parameters and ensure correct operation.

With advanced three-phase sine-wave inverter technology, SXBB provides stable testing signals and accurate measurement results.

The transformer turns ratio represents the relationship between winding turns:

N1/N2 = U1/U2

By comparing measured voltage ratio with rated ratio, engineers can evaluate transformer manufacturing quality and operational condition.

The three-phase output improves testing efficiency for complex transformer structures.

The intelligent system automatically calculates ratio values and reduces manual calculation errors.

The measurement range reaches:

0.9~10000

Supporting various transformer applications.

Used for:

• High voltage transformers
• Distribution transformers
• Special transformers

Verify voltage transformer ratio accuracy.

Measure current transformer ratio and polarity.

SXBB includes:

• Reverse connection protection
• Output short circuit protection

These functions improve operator safety during testing.

Quality inspection before shipment.

Routine transformer condition assessment.

Commissioning and acceptance testing.

• Measuring range: 0.9~10000
• Accuracy: ±0.1%~±0.3%
• Power supply: AC220V±10%
• Frequency: 50/60Hz
• Temperature: -10℃~50℃

It verifies whether transformer winding parameters meet design requirements.

It can help detect incorrect connections and abnormal transformer conditions.

Yes.