998 generator differential protection device features:
1. This product adopts modular design ideas, high-performance DSP imported chip, hemp ratio differential protection, winding turn-to-turn protection (traverse difference), differential quick-break protection, non-electricity protection, CT disconnection alarm and other protection functions. .
2. The product provides high precision reverse power protection. The internal measuring level current transformer and the protection level current transformer of the device pass the soft switching. The measuring current current transformer sampling channel is adopted under the small current, and the protection level current transformer adopts the channel under the large current, and the multi-level angle compensation is adopted to ensure It ensures high-precision measurement of power in the range of reactive power.
3. The product adopts full metal casing and dual A/D redundant hardware design, which improves the anti-drying ability of the device and improves the measurement accuracy of the device.
4, the product provides a standard RS-485 interface, can also be equipped with other communication interfaces according to user requirements, can be well communicated with the GZP-SCADA microcomputer background monitoring system networking, to achieve remote control.
5. The product is a professional device for generator main protection. It can be used together with 988 generator protection and control device, 989 generator grounding protection device and 988 generator backup protection device produced by our company to form a complete generator. Protection System.
