Transformer Ratio Tester Yuneng testers  

(Fully automatic-digital display)

Introduction:

Ratio testers using ‘current balancing bridge’ circuits are now out dated. model Ratio tester is a new, fully automatic tester that measures transformation ratio of single phase and three phase transformers using modern electronic techniques and does not require any manual ‘null’ balancing. Ratio testers is micro controller operated user friendly, accurate, small, light weight and reliable tester. Ratio testers incorporates a large LCD screen for display of menu and results. The results can be printed on built-in printer after the test is over. Ratio testers incorporates breakthrough technology and design that gives accurate and reliable results, again and again.

The advantages

• Fully automatic: no manual balancing required
• Test single phase and three phase transformers
• Automatic measure transformer connection group
• Automatic process transformation of group
• Automatic calculation of ratio error
• Isolates test voltage automatically after test
• Test results saved automatically
• Recall and print last 30 test results
• Prints results on built-in printer 

Features

• Micro-controller operated
• Front panel with legend
• Built-in printer
• Can re call stored last 30 tests results.
• Weight: 10 kg

Safety Features

• Automatic cutoff after test
• When data exceeds 30, the last is saved as 30^th

And the 1^stone is deleted.

• Fuse protection for line short circuit
• Fuse protection and reset protection for reverse connection of HV and LV winding 

Description:  

Ratio testers is a new generation, fully automatic, transformer turns ratio tester designed for measuring ratio, ratio error of single and three phase transformers.

The entire test is done automatically and quickly. Operator enters the test parameters and HYG-II takes over; powers up the voltage, balances the bridge, takes the readings, and displays the results on the LCD screen.

Prints test results through its built-in printer. 

A key feature of the Ratio tester is automatic measure transformer connection group.

LV and HV windings are automatically isolated once the measurement is over.

True portability is achieved by the lightweight (only 10 kg), single unit design housing the tester. Ratio testers is encased in an aluminum alloy cabinet.

SPECIFICATIONS:

Power supply: 220V±10%, AC 50 Hz.

Measurement ratio: 1:1000

Display: LCD

Accuracy: 0.2 class

Test voltage: H.V.: 190V AC

              L.V.: 0.19-190v AC  (vary with ratio)

Usage environment: ≤ 40º C.

                   < 85% R.H.

Accessories: Mains cord.

             Connection leads terminated with alligator clips, 8 meters long: 2 numbers.

Operating Manual

Calibration certificate

Dimensions:  480*400*300mm

Package:Wooden case

Weight:15 kg.

Weight of Package: 30 kg.

Oil Testers from Chongqing Yuneng OIl-Filter Manufacturing Co.,LTD