Transformer Turns Ratio Meter
Model: TTR-400


Description
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
1)Measures turns ratio, voltage ratio, phase displacement
2)Variable test voltage:0~160V
3)Automatic winding connection identification and vector group detection
4)7" touch screen for easy operation
5)Simplistic user interface for quick test setup
6)Save the test results on-board
7)Download test results via USB interface
8)Print the test results via built-in printer
9)Adopt three-phase precision inverter power supply for more accurate measurement
10)Has high and low voltage reverse connection protection and transformer interturn short circuit protection
11)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: customized(AC220V/230V/120V,50Hz/60Hz optional)
Dimension: 360x290x170mm(14.17x11.42x6.69 in)
Weight: 5.9kg(13.01 lb)
Environmental Conditions
storage temperature: -20ºC~60ºC
humidity: <90%
operating temperature: -10ºC~50ºC
Safety Qualifications and EMC
Safety: designed in accordance with IEC61010-1
EMC: light industrial IEC 61326

HAOMAI ELECTRIC POWER AUTOMATION is established in 1999 and located in Wuhan of China, which is specialized in developing and manufacturing electrical power test and measurement instruments. HAOMAI products are widely used in power grid, petrochemical, metallurgy, railway, coal mine, research institutes and all kinds of large-scale factories or enterprises.mainly focuses on the sales and services of Protection Relay Test System, CT/PT Analyzer, Battery Load Tester, Transformer Testing Equipment, Circuit Breaker Analyzer, Partial Discharge Detector etc. electrical power test and measurement instruments.
 
HAOMAI follows total quality criteria, and always maintains standardized process and procedures for continuous growth. HAOMAI has been certified by ISO 9001:2015, ISO 14001:2015 and OHSAS 18001:2007.
 
HAOMAI builds own RELAYSTAR laboratory and performance test laboratory, and possesses professional production equipment and testing instruments in factory, such as Agilent 34401A 6 1/2 High-precision Meter, FLUKE Multi-meter, EMH Standard Meter, CLOU Standard Power Source, Oscilloscope, Phase Meter, Insulation Test System, High Voltage Dividers, AC High Voltage Generator, Time Calibration Tester, Standard Micro-resistance etc.
 
HAOMAI is China well-known mark recognized and approved by State Administration for Industry & Commerce of People's Republic of China, and enjoys high reputation in domestic and foreign markets.
 
HAOMAI now is the key supplier for SGCC(State Grid Corporation of China) and CSG(China Southern Power Grid). Till 2018 HAOMAI products have been sold to 34 different countries. 
 
HAOMAI always sticks to the faith of "cooperation and sharing", takes the "technology and market" as the direction, "creation and innovation" as the soul, listens to clients carefully, and improves the technology, upgrades the products, optimizes the service and tries all to be the global leader in electrical power test and measurement instruments field.