HMTX-II Transformer Core Earth Current Tester

HMTX-II Transformer Core Grounding Current Tester

Under normal operating conditions, a transformer core should have only one grounding point. If two or more grounding points occur, a circulating current may form between the transformer core and ground. In severe cases, the current can reach several tens of amperes, causing localized overheating, insulation deterioration, or even damage to the transformer core. Therefore, timely detection of abnormal grounding current is essential for transformer condition monitoring and preventive maintenance.

The HMTX-II Transformer Core Grounding Current Tester is a dedicated instrument for measuring the grounding and leakage current of transformer cores and clamps. It helps engineers quickly identify abnormal grounding conditions and potential hidden faults, providing reliable test data for transformer maintenance and safe operation.

The HMTX-II is widely used for transformer core grounding current testing in substations, power plants, and transformer maintenance facilities. It is suitable for testing transformers, reactors, and other electrical equipment, making it a practical solution for transformer preventive maintenance, condition assessment, and fault detection.

1. Wide measurement range and high resolution.
2. Two control modes: button control and smart touch control.
3.  Equipped with a 3.5-inch, 320×240 true-color LCD touchscreen for easy operation.
4. Built-in high-capacity non-volatile memory capable of storing 400 data sets.
5. Built-in high-precision clock for real-time time display.
6. Supports data storage via USB flash drive.
7. Features a scheduled shutdown function.
8. High-capacity lithium battery provides over 8 hours of standby time on a single charge.