Introduction:
Microcomputer relay protection testers are developed based on the technical specifications (discussion draft) for microcomputer relay protection test equipment issued by the ministry, incorporating extensive user feedback and a comprehensive analysis of the strengths and weaknesses of existing domestic products. By fully leveraging advanced microelectronics technology, a new generation of compact yet highly functional devices has been achieved.
Featuring a large-screen LCD display and an intuitive rotary mouse controller, the tester offers powerful standalone operation capable of performing most routine tests. When connected to a computer, it provides even more advanced functionalities for complex test scenarios.
Compact in size yet high in accuracy, this tester combines the superior performance and advanced features of larger devices with the portability, ease of operation, and high reliability typically found in smaller units. It delivers excellent performance at a reasonable cost, making it an ideal tool for maintenance personnel in the field.
Features:
1、Standard Output Configuration: The device features a standard output of 4-phase voltage and 3-phase current, allowing flexible combination for various protection testing requirements. A single-phase voltage can reach up
to 120V, while a single-phase current can reach 40A (for 10 seconds). The three-phase current can output up to 120A. The fourth-phase voltage Ux is a versatile voltage item that can be configured as 3U0, a synchronization
check voltage, or any user-defined voltage value for output.
2、User-Friendly Standalone Operation: The device supports standalone operation with intuitive controls via a large LCD screen and an ergonomic rotary mouse, all displayed in Chinese. It can perform most on-site testing and
verification tasks, validate various relay and microcomputer protection devices, and simulate complex transient, permanent, and transitional faults for comprehensive testing. Ready to use upon startup, it offers effortless
operation.
3、Dual Operation Modes: When connected to a computer, the device operates via a full Chinese-language software suite on the Windows platform. This enables the execution of complex, highly automated verification tasks,
such as easy testing and scanning of various protection settings. It also supports real-time test data storage, vector diagram display, fault waveform plotting, and on-line report printing.
4、Advanced Software Functionality: The software offers robust capabilities for executing large-scale, highly automated verification projects, including three-phase differential testing, fast bus transfer, backup auto-reclosing
tests, and line protection synchronization checks. It allows effortless testing and scanning, playback of various faults, real-time data storage, vector diagram display, and on-line report printing.
5、Versatile Digital I/O Interface: The device includes 7 contact inputs for three-phase applications and 2 pairs of dry contact outputs. Input contacts are compatible with 0–250V voltage signals and can be automatically
identified. Input and output contacts can be expanded according to user requirements.
6、Large LCD Display: Equipped with a high-resolution 320×240 dot matrix LCD screen, all operations and processes are clearly displayed in Chinese on the interface. The intuitive and clear layout ensures easy navigation and
result viewing.
7、Integrated Protection Features: Designed with an optimized cooling structure, the device incorporates multiple reliable protection measures and a soft-start power function. It also provides fault self-diagnosis and automatic
lockout capabilities for enhanced safety.
8、Independent DC Power Output: The device includes dedicated DC power outputs of 110V and 220V for auxiliary testing requirements.
9、High Cost Performance: As a cross-disciplinary integrated product, it combines advanced technologies from multiple fields. It delivers the performance of large testers at the price of compact units, offering an excellent
performance-to-cost ratio.
