Three-Phase Winding Ohmmeter TWA25A

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Overview


The Three-Phase Winding Ohmmeter TWA25A is designed for six-winding resistance measurement of both the primary and the secondary transformer windings. This is performed with a one single-step cable setup, with test currents of up to 25 A. Each transformer configuration has a special measurement algorithm which is optimized for the fast stabilization of test results.

Accessories

Included accessories

  • DV-Win PC software
  • Ground PE cable
  • USB cable
  • Built-in Tap Changer Control Unit
  • Tap Changer Control cable set 5 m (16.4 ft)
  • USB flash drive feature
  • Mains power cable
Recommended accessories

  • H winding test cable set, 4 x 10 m (38.8 ft) with TTA clamps
  • X winding test cable set, 4 x 10 m (38.8 ft) with TTA clamps
  • Cable plastic case
  • Transport case
Optional accessories

  • Test shunt 1 mΩ (150 A / 150 mV)
  • H winding test cable set, 4 x 15 m (49.2 ft) with TTA clamps
  • X winding test cable set, 4 x 15 m (49.2 ft)with TTA clamps
  • H winding test cable set, 4 x 20 m (65.6 ft) with TTA clamps
  • X winding test cable set, 4 x 20 m (65.6 ft) with TTA clamps
  • Bluetooth communication module

 

Download

Brochure

Application Notes

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