High-Precision LV Transformer Impedance and Voltage Test Set
The Three-Phase Transformer Short-Circuit Impedance Tester is a specialized instrument designed for three-phase power transformers, suitable for voltage levels from 10kV to 500kV and capacity from 10kVA to 1000MVA. It adopts three-phase synchronous sampling technology, which can quickly and accurately measure the short-circuit impedance and load loss of three-phase transformers under rated current conditions. This tester is widely used in power grid commissioning, transformer maintenance, and fault diagnosis, effectively improving the efficiency and accuracy of three-phase transformer testing.
Key Features
- Three-Phase Synchronous Sampling: Three independent high-precision sampling channels enable synchronous sampling of three-phase voltage and current, ensuring accurate measurement of three-phase unbalance.
- Fast Test Speed: Completes a full set of three-phase tests in 30 seconds, significantly improving testing efficiency compared to traditional single-phase methods.
- Automatic Phase Compensation: Built-in phase compensation algorithm automatically corrects phase errors caused by wiring and instrument drift, ensuring measurement accuracy.
- Multiple Wiring Modes: Supports Y, Δ, and Z wiring modes, adapting to different connection forms of three-phase transformers with strong versatility.
- Intelligent Fault Judgment: Automatically identifies wiring errors, phase loss, and other faults, displaying prompts on screen to reduce operation errors.
Technical Specifications
| Measurement Items |
Short-circuit impedance (Zk), load loss (Pk), short-circuit voltage (Uk), three-phase unbalance, frequency |
| Voltage Measurement Range |
AC 0-500V (rms), accuracy: ±0.15% FS + 2 digits |
| Current Measurement Range |
AC 0-50A, accuracy: ±0.15% FS + 2 digits |
| Impedance Measurement Accuracy |
±0.3% FS |
| Working Power Supply |
AC 220V ±10% or built-in 12V lithium battery |
| Data Storage |
Support 500 groups of data storage, exportable via USB/Bluetooth |
| Protection Functions |
Overcurrent, overvoltage, low battery, overheating protection |
About Sansion Power Electric
Sansion Power Electric was established in 2005, with over 20 years of experience in R&D, manufacturing and marketing of power electrical testing products. Our products are widely used in power electric, railroad, energy conservation and environment protection, water conservancy, petrochemical industry, aerospace and other fields.
Our facility includes R&D department, instruments manufacturing workshop, HV workshop, sample exhibition room, HV testing laboratory, quality control department, and more. We employ over 80 staff including 20 technical engineers. We have obtained ISO9001 quality system certification and all products strictly conform to international IEC and Chinese state standards.
Frequently Asked Questions
Q1: Is your company a sales company or a manufacturer?
Sansion Power Electric Co., Ltd. is an industrial and trade enterprise, with its own factory, self-produced and self-sold. We were founded in 2005 and have twenty years of production experience. Our company has reliable production lines, test rooms and R&D centers.
Q2: Whether the goods are in stock, whether they can be customized, and how long the delivery time is?
After the goods have been ordered, we can be made to order according to the special requirements of customers by using the latest technology. The delivery time is usually within 10 working days if there are no accidents.
Q3: Is the quality guaranteed?
In order to ensure quality, we use imported components in large quantities. After three times of quality inspection, the goods can be sent out, and the export is uniformly packed in non-fumigation wooden boxes.
Q4: What are the after-sales terms?
We offer free consulting service, one year warranty, and adopt various methods such as email communication, video calls, technology door-to-door, aiming to solve any after-sales problems in a timely manner.
Q5: What are the cooperative countries or regions?
Products have been successfully exported to the United States, French, Brazil, Australia, Spain, Portugal, Oman, Russia, the Netherlands, Indonesia, Bangladesh, Saudi Arabia, Chile, Colombia, Panama, Malaysia and other countries and regions.
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