Transformer Turns Ratio Meter
Model: TTR-400
Transformer Turns Ratio Meter TTR-400 is designed to measure the
voltage ratio and turns ratio of singe phase or three-phase
distribution transformers or power transformers in a substation or
manufacturing environment according to test standard IEC 60076 and
IEEE C57.12.90.
Main Features
●Measures turns ratio, voltage ratio, phase displacement
●Variable test voltage: 0~160V
●Automatic winding connection identification and vector group test
●7” touch screen for easy operation
●Simplistic user interface for quick test setup
●Save the test results on-board
●Download test results via USB interface
●Print the test results via built-in printer
●Adopt three-phase precision inverter power supply for more
accurate measurement
●Has high and low voltage reverse connection protection and
transformer interturn short circuit protection
●Supplied in a compact and rugged case for portability
Technical Data
◇Test Standard: IEC60076 and IEEE C57.12.90
◇Ratio Measurement
range: 0.9-10000
accuracy: ±0.1% @ 0.9-500
±0.2% @ 501-2000
±0.5% @ 2001-10000
◇Phase Angle Measurement
range: ±180°
accuracy: ±0.1°
resolution: 0.01°
◇Test Voltage:0~160V
◇Internal Data Storage: up to 1000 data sets
◇Built-in printer for printing test results directly
◇Power Supply: AC220V/230V±10%,50Hz/60Hz
◇Dimension: 360x290x170mm(14.17x11.42x6.69 in)
◇Weight: 5.9kg(13.01 lb)
◇Environmental Conditions
storage temperature: -20℃~60℃
humidity: <90%
operating temperature: -10℃~50℃
◇Safety Qualifications and EMC
Safety: designed in accordance with IEC61010-1
EMC: light industrial IEC 61326
Transformer Turns Ratio Meter TTR-400 is powerful tool for testing
voltage ratio and turns ratio of power transformers.
Transformer Turns Ratio Meter TTR-400 is also calibrated in the
third party laboratory accredited under ISO/IEC 17025.
The Calibration Report is shown as below.
