The AD303B2 serves as a high-performance Relay Protection Tester, independently developed for the performance verification of single-phase relays, miniature current transformers and complete relay protection systems under 35kV voltage class. The tester adopts sturdy aluminum alloy casing and an easy-to-operate PC control panel. Its compact, lightweight structure delivers outstanding portability, perfectly matching on-site testing scenarios including power plants, substations and all kinds of electrical engineering projects.
Recognized as a premium High Quality Relay Tester, this device is fitted with full digital measuring components. It outputs steady dual-channel alternating current and direct current voltage and signals, featuring ultra-high precision and minimal waveform distortion to consistently generate accurate and trustworthy test data. Functioning as a fully Reliable Relay Tester, the equipment is built with triple safety mechanisms covering overload, short-circuit and over-temperature protection. It can sustain stable continuous operation under harsh environmental conditions where temperature fluctuates between -10℃ and 45℃ and relative humidity stays lower than 85%.
In the category of single-phase testing equipment, the AD303B2 ranks among the industry’s top Best Relay Testers. It integrates abundant test modes to satisfy varied calibration requirements of multiple relay types and small current transformers. As a complete Affordable Relay Protection solution, it delivers superior technical performance at a competitive price point. With straightforward operation steps and minimal maintenance expenditure, the device becomes the optimal selection for clients pursuing efficient, precise and budget-friendly relay testing, balancing professional performance and practical usability for long-term daily operation.
Huzhou Aidi Electric Co., Ltd. consistently devotes itself to technological innovation to supply comprehensive testing solutions for global power practitioners. For product consultation and cooperation negotiation, please contact us via the following information: Mobile Phone: +86 13506728162 E-mail Address: 13506728162@139.com