Transformer Short-circuit Impedance Tester

The low-voltage short-circuit impedance test is a direct method used to assess whether a transformer's windings have been deformed due to short-circuit current impacts during operation or mechanical impacts during transportation and installation. This test is crucial for determining whether a transformer can be put into operation and serves as one of the key factors in deciding whether a disassembly inspection is necessary.

The SMRDL10 transformer short-circuit impedance tester is a next-generation testing instrument independently developed by our company for measuring the low-voltage short-circuit impedance of 35 kV and higher main transformers in both field and laboratory conditions. The instrument features a compact design with powerful functions, including a built-in 2000W adjustable power supply. It employs advanced A/D synchronous AC sampling and digital signal processing technology to ensure accurate measurement data. The tester also has a large-screen color LCD display with Chinese menu prompts, a high-speed thermal printer, and large-capacity internal memory for convenient data storage and printing. Saved data can be transferred to a USB flash drive. Small, lightweight, and easy to carry, this instrument is highly convenient for field use, significantly reducing the workload of testing personnel and improving work efficiency.

1.Three-phase short-circuit impedance measurement:

Displays three-phase voltage, three-phase current, and three-phase power; automatically calculates the percentage of impedance voltage converted to rated temperature and rated current, and the percentage error compared to the nameplate impedance.

2.Single-phase short-circuit impedance measurement:

Measures the short-circuit impedance of a single-phase transformer.

3. Zero-sequence impedance measurement:

Zero-sequence impedance measurement is applicable to transformers with a star connection on the high-voltage side and a neutral point.

4. Direct measurement is possible within the instrument's allowable measurement range. For measurements outside the range, external voltage and current transformers can be connected. The instrument can set the transformation ratio of the external voltage and current transformers and directly display the applied voltage and current values.

5. The instrument uses a large-screen color high-resolution touchscreen LCD with Chinese menus and prompts, making operation simple.

6. Built-in 2000W AC adjustable power supply with automatic voltage adjustment.

7. The instrument has a RS232 interface for external expansion capabilities.

8. The instrument has a built-in printer for printing displayed data.

9. Built-in memory, capable of storing 200 sets of measurement data.

10. The instrument is equipped with a USB flash drive interface for accessing test data.

11.Permanent calendar and clock functions for time calibration.

Our company offers a 24-hour online consultation hotline, where we answer customer questions about product performance, functions, and pricing through phone, email, and online customer service. We also provide customized solutions based on customer needs and offer remote diagnostics, guidance, and maintenance services for faulty products. We promise our customers: to adapt to the market with high-quality products, to respond quickly to their needs, and to provide attentive service that ensures their satisfaction.