Introduction:

• GDB-D Automatic Z-Type Winding Transformer Turns Ratio TTR Tester is specially designed for three phase transformer in power system, especially for type Z winding and  other transformers whose zero-load current is relatively high.

• GDB-D Automatic Z-Type Winding Transformer Turns Ratio TTR Tester has wide testing range and fast testing speed, favorable repeatability flexible data processing, convenient connection, complete protection, easy learning and convenient operation;

 

Features:

• Applicable to transformers connected in Z type

• Two output voltages are optional and applicable to transformer whose zero-load current is relatively high

• Wide testing range and highest transformation ratio may reach 10000

• Automatically calculate tap position

• Fast speed, which is only 18 seconds for three-phase

• Favorable repeatability

• Automatically save 99 data at most

• Flexible data processing, including retrieval, print, transfer to U-disk, delete and upload to PC computer of testing

• Functions of transformer short-circuit protection and interturn short-circuit protection functions. If there is short circuit, relevant information will be displayed on the LCD screen

• Small size and light weight

 

Specifications:

 

Turns Ratio Range	0.8~10000
Group Difference Range	1~12
Turns Ratio Range Accuracy	0.2 level (180V:0.8~1000) 0.5 level (180V:1000~10000) 0.2 level (10V:0.8~200)
Turns Ratio Resolution	0.0001
Angle Resolution	0.01°
Power Supply	220V±10%, 50Hz±1Hz
Working Temperature	-20℃~40℃
Relative Humidity	≤85%, no condensation
Overall	325mm×278mm×188mm
Instrument Weight	7kg