Megger 550005B Single-Phase TTR Test Set, Hand-Cranked

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Megger Mfr # 550005B – Item # EW-20022-73
Works in even harsh conditions
  • Measure turns ratio, excitation current, and polarity of windings
  • Unmatched accuracy (±0.1%) in a portable design
  • Use for testing single phase power and distribution transformers
  • For low-ratio readings up to 129.99:1, or extend to 329.99:1 with optional auxiliary transformer
  • Measures an excitation current range of 0 to 1 A and turns ratio range of 0.001 to 129.999
  • Test frequency is 55 Hz internally generated providing a universal 50/60 Hz test set
  • Designed with turns ratio accuracy of 0.1% (0.8 to 2000); 0.15% (2001 to 4000); 0.25% (4001 to 10,000)
  • 1 year warranty

SPECS & DESCRIPTION

Specifications & Description

  • AC Current Accuracy±0.1%
  • Min Temperature (° F)-5
  • Max Temperature (° F)130
  • Min Temperature (° C)-20
  • Max Temperature (° C)55
  • Dial TypeFour decade dials
  • Length (in)14
  • Height (in)7 1/2
  • Depth (in)12
  • DescriptionSingle-Phase TTR Test Set, Hand-Cranked
  • Warranty1 Year
1 Year Warranty

Key Features

  • Measure turns ratio, excitation current, and polarity of windings
  • Unmatched accuracy (±0.1%) in a portable design
  • Use for testing single phase power and distribution transformers
  • For low-ratio readings up to 129.99:1, or extend to 329.99:1 with optional auxiliary transformer
  • Measures an excitation current range of 0 to 1 A and turns ratio range of 0.001 to 129.999
  • Test frequency is 55 Hz internally generated providing a universal 50/60 Hz test set
  • Designed with turns ratio accuracy of 0.1% (0.8 to 2000); 0.15% (2001 to 4000); 0.25% (4001 to 10,000)
  • 1 year warranty

More About this Item

The single-phase, hand-cranked transformer turns ratio test set is well-suited for use in a variety of harsh environments, particularly for testing in substations, transformer-manufacturing environments, and meter shops.

The excitation voltage is 8 Vrms for testing distribution or power transformers and PTs and 0.5, 1.5, or 8 VAC RMS for testing CTs. The excitation voltage is switched automatically if excitation current exceeds a preset value.

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