Megger 550503 Three-Phase TTR Biddle AVO

For Sale Megger 550503 Three-Phase TTR Biddle AVO. This unit excellent condition and fully tested. Come with warranty 90 days.

The Three-Phase Automatic TTR is designed to measure the turns ratio of power, instrument, and distribution transformers in a substation or manufacturing environment. At 16.5 lbs (7.5 kg), it weighs less than any other commercially available instrument. A rugged and robust design makes this TTR well suited for use in a variety of harsh environments. The TTR is also particularly suited for testing in power transformer manufacturing environments where testing of complex, three-phase substation power transformers can be performed quickly while minimizing the possibility of errors. This new TTR measures the highest turns ratio range in the industry (10,000:1) and also provides the highest accuracy (0.1%).

Key Specifications

• • Electrical Input: 120 V AC ±10%, 50/60 Hz, 100 VA (Cat. No. 550503); optional 230 V AC (Cat. No. 550503-47).
  • Test/Excitation Voltages: 8 V, 40 V, and 80 V RMS, selected automatically or manually.
  • Turns Ratio Range:
    0.8 to 4,000 (at 8 V AC)
    0.8 to 15,000 (at 40 V AC)
    0.8 to 20,000 (at 80 V AC)
  • Turns Ratio Accuracy: ±0.1% (low/mid range).
  • Excitation Current Range: 0 to 500 mA with 3-digit resolution (Accuracy: ±2% of reading + 1 digit).
  • Phase Deviation Range: ±90 degrees (Accuracy: ±3 minutes).
  • Data Storage: Stores up to 200 test records with an RS-232 interface for PC or printer connectivity.
  • Measurement Standard: ANSI/IEEE C57.12.90.