Portable Transformer Turns Ratio Meter: A High-Precision Solution for Testing Transformer Turns Ratio and Vector Groups

DESCRIPTION / TECHNICAL SPECIFICATIONS

Accurate and Efficient Transformer Testing Solution for Industrial Applications

In industrial operations, manufacturing plants, and electrical power systems, the reliability of power and distribution transformers is critical to maintaining stable power supply and uninterrupted production lines. The Transformer Turns Ratio Meter is a portable testing instrument specifically engineered to accurately measure the turns ratio, vector group, and winding connection of power and distribution transformers.

Core Functionality and High-Precision Operating Principle

This testing instrument operates by applying a low-voltage AC test signal to the transformer winding and automatically comparing the induced voltage on the secondary winding with the primary voltage to calculate the turns ratio with high precision. In addition to ratio measurement, the device reliably verifies transformer polarity and phase displacement.

Benefits for Production Efficiency and Maintenance Reliability

Integrating the Transformer Turns Ratio Meter into your testing workflow significantly enhances diagnostic speed and operational efficiency for electrical engineers and field technicians. It enables rapid identification of critical issues, including:

• Detecting internal winding faults accurately.
• Identifying incorrect tap changer settings.
• Uncovering manufacturing defects prior to deployment or energization.

With these capabilities, the instrument serves as an essential solution during transformer commissioning, preventive maintenance, and rigorous quality inspection across transformer manufacturing facilities, workshops, and industrial plants.

Key Advantages and Technical Specifications

Built to meet demanding industrial testing standards, the Transformer Turns Ratio Meter combines wide measurement capabilities with a rugged, portable form factor:

• Wide Testing Range: Covers a broad transformation ratio testing range of 0.8 to 10000, alongside a group testing range of 0 to 11.
• High Resolution and Multi-Class Accuracy: Delivers a transformation ratio resolution of 0.0001 with exceptional testing accuracy across ranges: class 0.1 (HV: 0.8200), class 0.2 (HV: 2001000), class 0.5 (HV: 100010000), and class 0.2 (LV: 0.8100).
• Compact and Portable Design: The host machine features an overall dimension of 325mm × 280mm × 190mm and weighs only 6.9 kg, allowing convenient transport for on-site field testing and workshop inspections.
• Reliable Environmental Adaptability: Operates on a standard 220V±10% (50HZ±1Hz) power input and performs dependably within a service temperature range of -20°C to 40°C and relative humidity of ≤85% (non-condensing).
• Complete Ready-to-Use Package: Supplied with a comprehensive set of standard accessories to support immediate operation, including 1 Host unit, 1 Test wire set, 1 Power cord, 1 U-Disk, 1 Ground line, 1 roll of Printer paper for immediate on-site result printing, 6 Fuses (3 pieces each of 2A and 1A), 1 Instruction manual, 1 Inspection report, and 1 Certificate.

Consult with Our Specialists Today

Ensure the safety, compliance, and performance of your electrical assets with high-precision testing equipment. Contact our technical team today to request detailed specifications, discuss your specific transformer testing requirements, or obtain a competitive quotation for your facility.