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6235+7721+6905
Comprehensive Transformer Testing Systems
3 in 1 Comprehensive Transformer Testing System

623x series + 7721+6905 (transformer tester+Impulse/Surge tester+Hipot tester)  3 in 1 comprehensive transformer testing system, the one-stop comprehensive transformer testing system is the only product adopted by major Japanese manufacturers.

6235

  • Basic precision up to 0.1%
  • Test frequency up to 1MHz
  • Synchronous tests with multiple parameter settings
  • Able to test 30 items per second under fastest test speed
  • Optional Meter Mode function
  • High accuracy and stability

7721

  • The fully programmable continuous test
  • Measurement items include Area under curve comparison, Area size comparison, Waveform comparison, Flutter, Corona
  • Automatic Level Control Function (ALC) 
  • 21 Channel test
  • With Multi Winding Test Function

6905

  • Test items include (AC Withstand, DC Withstand, Insulation Resistance)
  • Rise time setting
  • User-friendly interface, easy to operate

Specification

     
Transformer Tester Impulse/Surge Tester Hi-Pot Tester
6235 6236 6237

7721

6905

Max Frequency  Impulse Voltage Output Voltage V
200K Hz 500K Hz 1M Hz  200 ~ 5000V Programmable AC 100V ~5KV, DC 100V~6KV , IR 100V ~ 1000V

6235 Transformer Tester

    
 Measurement Parameters
 Turn Ratio, Phase, L, Q, Leakage L, Balance, ACR, Cp, D, X, Y, DCR, Pin-Short
 Parameters Measurement Ranges
 L, LK  0. 1nH ~ 9999.99H
 C  0.00001pF ~ 999.99mF
 Q, D  0.00001 ~ 99999
 Z, X, R  0.00001Ω ~ 99.9999MΩ
 Y  0.01nS ~ 99.9999S
 θ  -180°~ +180°
 DCR  0.01mΩ ~ 99.999MΩ
 Turn Ratio  0.01 ~ 99999.99turns
Pin-Short  12 pairs, between pin to pin
 Specification
 Memory  64 Files
 LCD Display  320*240 dot-matrix display
 Power Supply  Voltage  90Vac ~ 125Vac or 190Vac ~ 250Vac
  Frequency  48Hz ~ 62Hz
 Dimension (W*H*D)  360x133x420 mm
 Weight  9 kg

7721 Impulse/Surge Tester

    
 Functions
 Total Area 
 Area size comparison
 Waveform comparison
 Flutter
 Corona
 Range
 Test Channel  21 Channels
 Impulse Voltage 200 ~ 5000 V Programmable
 Specification
 Memory  200 Waveform Files
 LCD Display  320*240dot-matrix display
 Power Requirements  Voltage  115 / 230Vac ± 15% 
  Frequency 50 / 60Hz ± 5%
 Dimension (W*H*D)  435x178x525 mm
 Weight  16 kg

6905 Hipot Tester

    
 Test Mode
 AC, DC , IR
 Test Channel
 2 Channel
 Measurement Data
 AC Hi-Pot  100V ~ 5000V AC, 50 / 60Hz, 0.01 ~ 10mA   
 DC Hi-Pot  100V ~ 6000V, 0.01 ~ 5mA   
 Insulation  DC 100 ~ 1000V, 1M ~ 9.99GΩ   
 Arcing  1 ~ 10mA   
 Item   Range  Resolution  Accuracy
 AC Withstand (Output Voltage V)  100V ~ 5000V  10 ±(3% of setting+5V)
 DC Withstand (Output Voltage V)  100V ~ 6000V  10 ±(3% of setting+5V)
 Insulation Resistance (Output Voltage V) 100 ~ 1000Vdc  10 ±(3% of setting+5V)
 Specification
 Memory  30 Sets   
 LCD Display  320*240 graphic 
 Power Requirements Voltage 115 / 230Vac ± 15%
  Frequency  50 / 60Hz ± 5%
 Dimension (W*H*D)  435x133x455 mm
 Weight  15 kg
Datasheet
Video
No relevant audio and video files
Accessories/Fixtures

Standard Accessories

  • Power Cord
  • User Manual
  • HV Test Cable
  • D-Sub footswitch
  • Remote Control Cable

Optional Accessories

  • PC Link Software
  • RS-232 cable
  • Scan Box (F7721)
  • Dual Scan Box (F7721-D)
  • 24V Switch Power Supplier
TOPTOP