• Model NO.：GDB-IV
• Installation：Direct Connected
• Customized：Customized
• Power input：Lithium battery 10AH
• Turns ratio range：1~5000
• Group difference range：1~11
• Turns ratio accuracy：0.2%, 0.5%, 1%
• Turns ratio resolution：0.0001
• Angle resolution：0.01°
• Accuracy of current measurement：1% FS+2digits
• Delivery time：15 working days
• Transport Package：Wooden Case
• Specification：ISO, SGS
• Trademark：HV Hipot
• Origin：Wuhan China
• Production Capacity：5000 Sets,Year

Basic Info.

Model NO. GDB-IV Installation Direct Connected Customized Customized Power input Lithium battery 10AH Turns ratio range 1~5000 Group difference range 1~11 Turns ratio accuracy 0.2%, 0.5%, 1% Turns ratio resolution 0.0001 Angle resolution 0.01° Accuracy of current measurement 1% FS+2digits Delivery time 15 working days Transport Package Wooden Case Specification ISO, SGS Trademark HV Hipot Origin Wuhan China Production Capacity 5000 Sets/Year

Product Description

Product Description

GDB-IV Transformer Turns Ratio Tester is an automatic tester that measures transformation ratio of single phase and three phase transformers, which is suitable for using in power system, transformer manufacturer and railway electrical system. It is suitable to be used for power transformer, phase shifting rectifier transformer, Scott transformer, Inverse Scott transformer.

Features

• 7inch touch screen, full menu.
• It generates 3-phase power or 2-phase power, and output to HV side of transformer.LV side and HV side are sampling at the same time, and group, turns ratio, error and phase error are calculated at last.
• The instrument output 2voltages, which enhance the adaptation of different voltage grade transformer.
• For the transformer with tap changer, after rated parameter is set, the position of tap changer, tap changer ratio of current position can be determined automatically when measuring.
• Fast speed, testing time for one group data is 10s.
• Three-phase(120°) or two-phase(90°) power supply with stable amplitude and constant phase.
• With over-current, over-voltage protection function, over-heat function, reverse connection protection function.
• With 2pcs USB port, one for online and it can be controlled and measured by PC, data can be uploaded and saved by EXCEL file, one for inserting USB disk to save data.

Specifications
 

Power Supply	Lithium battery 10AH
Turns Ratio Range	1-5000
Group testing range	0-11
Accuracy of turns ratio test	1-500 Class 0.1 High voltage 500-2000 Class 0.2 High voltage 2000-5000 Class 0.5 High voltage 1-100 Class 0.2 Low voltage 100-500 Class 0.5 Low voltage
Resolution of angle	0.01°
Accuracy of current measurement	1% FS+2digits
Ambient temperature	-20~40ºC
Ambient humidity	≤85% RH