VIND-BY-II Transformer Turns Ratio & Vector Group Tester

VIND-BY-II Transformer Turns Ratio & Vector Group Tester
VIND-BY-II Transformer Turns Ratio & Vector Group Tester - 图片 2
VIND-BY-II Transformer Turns Ratio & Vector Group Tester - 图片 3
VIND-BY-II Transformer Turns Ratio & Vector Group Tester - 图片 4

VIND-BY-II Transformer Turns Ratio & Vector Group Tester

The VIND-BY-II is a high-precision tester designed for transformer and instrument transformer analysis. It features a wide range (up to 10000), intelligent blind measurement, and Z-type transformer testing. With a full-color screen and built-in thermal printer, it ensures efficient and accurate on-site diagnostics.

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PARAMETER

Product Overview
The VIND-BY-II Transformer Turns Ratio (TTR) & Vector Group Tester is an innovative power testing instrument engineered to overcome the limitations of traditional ratio bridges. Utilizing a full three-phase sinusoidal inverter power output with soft-start and soft-stop functions, this device ensures rapid and precise measurements. It is widely used for testing the turns ratio, polarity, and vector group of power transformers, as well as Potential Transformers (PT) and Current Transformers (CT), making it an essential tool for power grid maintenance and substation commissioning.
Technical Specifications
  • Measurement Range: 0.9 ~ 10,000
  • Accuracy:
    • ≤ 500: ±(Reading × 0.1% + 2 digits)
    • 500 and ≤ 3000: ±(Reading × 0.2% + 2 digits)
    • 3000: ±(Reading × 0.3% + 2 digits)
  • Resolution: Ranges from 0.0001 (for low ratios) to 1 (for ratios ≥ 10000).
  • Display: 5.6-inch industrial high-brightness color LCD screen.
  • Physical Dimensions: 325mm (L) × 225mm (W) × 125mm (H); Weight: 3.8kg (excluding test leads).
  • Operating Environment: Temperature -10℃ ~ 50℃; Humidity ≤90% (non-condensing).
Key Functional Features
  • Intelligent Blind Measurement: The device supports “Blind Test” mode, allowing users to accurately measure the turns ratio and group type even when the high/low voltage connection method of the transformer is unknown, significantly improving field testing efficiency.
  • Versatile Application: Beyond standard single-phase and three-phase transformers, it supports specialized testing for Z-type (Zigzag) transformers, PTs, and CTs, catering to a wide range of industrial and power system requirements.
  • Robust Safety Protection: Equipped with comprehensive protection mechanisms including reverse connection protection, output short-circuit protection, and grounding safeguards to ensure the safety of both the operator and the equipment.
  • Convenient Data Management: Features a built-in micro thermal printer for on-site data printing. It also supports internal memory storage and USB flash drive data export, facilitating the management of large volumes of test data.
  • User-Friendly Interface: The high-resolution screen remains clearly visible even under strong sunlight. The intuitive interface allows for easy parameter setup, automatic error calculation, and direct vector group determination.

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