Transformer Test Equipment

Transformers are the core equipment of power systems, and their long-term reliable operation is critical to overall grid stability. Efficiency grading, DC resistance, voltage ratio group, and insulation resistance tests are mandatory for transformer out-of-service maintenance.

Traditional testing requires four separate instruments, which are bulky to carry and involve repeated disconnection and reconnection of specialized test leads—wasting substantial manpower, materials, and working hours.

Wrindu has innovatively launched a four-in-one distribution transformer test system that integrates DC resistance, voltage ratio, insulation resistance, and efficiency grading into one compact unit. Powered by a high-capacity lithium battery, it supports single-wiring, multi-test operation, eliminating frequent lead changes and drastically boosting testing efficiency and convenience.

The RDZR-350X Transformer DC Resistance Tester accurately measures DC resistance in large power transformers. It features three-phase testing, magnetic-assisted measurement, and demagnetization functions. With a high-resolution color touchscreen and rotary control, it offers fast, precise, and easy-to-use testing. All measurements can be done in one setup, making it ideal for manufacturing, installation, handover, and preventive transformer testing.

The handheld transformer DC resistance tester is a compact, portable, and easy-to-use device. It can measure both inductive samples, like transformers and reactors, and resistive samples, such as copper bars, wires, and switch contacts. With fast testing speed and high accuracy, it is ideal for a wide range of testing scenarios.

The RDB-ⅡHX Portable Transformer Turn Ratio Tester is an innovative handheld device with a compact design, simple operation, and easy portability. It is mainly used for transformer turn ratio and vector group testing, as well as PT and CT ratio and polarity tests, offering fast measurement speed and high accuracy.

The RDKC-201X Transformer On-Load Tap-Changer Analyzer accurately measures key OLTC parameters, including transition waveform, transition time, instantaneous transition resistance, and three-phase synchronicity.

Its intelligent design, compact size, and lightweight build make it ideal for power supply units and transformer manufacturers to ensure safe operation and improve product quality.

The RDTBT series test bench is designed for testing power transformers, providing accurate no-load, load, and voltage tests with advanced microcomputer control, ensuring transformer reliability.

Elevate safety and reliability with our Capacitance Tan Delta Testing Kits. Automated, high precision, and suitable for challenging environments. Capacitance Tan Delta Testing Kits all have good reviews and feedbacks.

Transformer Load and No-Load Tester for precise measurement of low voltage short-circuit impedance in 35kV+ transformers, featuring advanced microcomputer technology, portable design, and efficiency enhancement.

The Sweep Frequency Response Analyzer evaluates transformers (6kV and above) for faults and accidents. Actively test transformer deformation to prevent power system accidents.