Range:0.9-10000 For single & three phase transformer Full Protections 10 years experience,exported to Iraq,Indonesia,Chile..

Product Features:

m Test range wide, the highest can reach up to 10000.

m Accurately measures ratio, phase deviation and exciting current

m highest accuracy can up to 0.1%

m Suitable for single phase, three phase and Z-shaped connection transformer.

m Fast test speed, completion TTR test of three-phase transformer within 11 seconds.

m Blind test for turns ratio and groups.

m 8 output terminals, including neutral point

m Data display, storage and output

² LED display test procedure and data.

² Data printing

² 480 groups of data storage

² RS485 for PC remotely controlling the instrument

² USB port for exporting the test data to U disk

m Protection

² Wrong connecting protection for High-voltage terminals and low-voltage terminals.

² Wrong connecting protection for 380V input power supply

² Short Circuit protection for both transformer and its turn-to-turn.

m Small size, light weight.

Technical Specifications:

m Range & Accuracy

Sampling Voltage	AC160V		AC10V
Range	0.9-10000		0.9-200
Accuracy	<500	±0.1%	≤200	±0.3%
	500-3000	±0.2%
	>3000	±0.5%

m resolution: minimum 0.0001

m power supply: AC220V ± 10% ,50±1HZ

m the use of temperature: -20 ° C to 40 ° C

m relative humidity: ≤ 80%, no dew

m Exterior size :360×275×165mm (instrument),

360×275×165mm (test wire box)

m Net Weight: 6 Kg( instrument), 6 Kg(test leads)

instrument test software interface

 

 

If you need remotely control the instrument , you should install the TTR771Test software and USB converter driver on your PC ,then connect the PC with the instrument according to the following diagram.

 

 

PC & instrument connection diagram

 

 

RS485 communication wireCommunication wire with USB converter

Compare with TTR773

m Specifications

	TTR771	TTR773
Range	0.9-10000	0.9-10000
Interface	RS485,USB	N/A
Data Storage	480 groups	50 groups
Input Power	AC220V ± 10% ,50±1HZ	AC220V ± 10% ,50 ±1HZ
Output Terminals	8pcs,including neutral point	6pcs,excluding neutral point
Size and Weight	360mm×275mm×165mm,6Kg	360mm×275mm×165mm,6 Kg

m Applications

TTR773 is one very typical transformer turns ratio test set, widely used for Grid, substation and power plant.

TTR 771 is designed for high-end customers which date upload & analysis functions is required. TTR771 is usually positioned at electrical test vehicles, and controlled by one compute with other test instrument. It is also one part of transformer test table together with transformer resistance tester, transformer tap change test set. and so on.

Order Information

Item Art. No.

TTR771

mInstrument 1 piece

mTest Wires 1 set

m TTR771 Test software disk for PC(for order) 1 piece

m 485 communication wire (for order) 1 piece

m Communication wire with USB converter (for order) 1 piece

m USB converter driver disk(for order) 1 piece

TTR771 Transformer Turn Ratio Test Set/Tester TTR test