HUAYI - Model HY331 -3 Phase Protection Relay Tester for Relay Protection Testing

The HY331 3 Phase Protection Relay Tester is designed for evaluating and testing the functionality of both traditional and microcomputer relays, specifically focusing on transformer differential protection and transfer equipment. It aligns with the DL/T624-2010 standard, adopting advanced microelectronics technology to deliver precise and stable measurements. The tester features a user-friendly Windows 7 operating interface, an 8.4-inch true color display, and high-performance embedded control. It provides accurate AC/DC current and voltage outputs, with precision enhanced by a unique self-calibrating software, which negates the need for manual adjustment. Its robust power amplifier ensures reliability for both small and significant currents, while safety and convenience are improved with its heat dissipation design and USB interfaces. Notably, the instrument accommodates laptop integration and supports direct communication without conversion cables, enhancing operational efficiency.