1、 Product Overview

The SND660 series digital protection and measurement device is suitable for the protection and measurement of interval units with voltage levels of 35kV and below. It has complete protection, measurement, control, backup power supply self switching, and communication monitoring functions, providing a complete solution for the protection and control of substations, power plants, high and low voltage distribution, and plant power systems. It can effectively ensure the safe and stable operation of high and low voltage power grids and plant power systems. It can be combined with other protection and automation equipment to form an automation system through communication interfaces. All devices can be installed in a centralized manner through screen grouping, or can be installed on-site in high and low voltage switchgear.

Specific functional division:

▲ SND660F line protection device

▲ SND660T Transformer Protection Device

▲ SND660C capacitor protection device

▲ SND660M asynchronous motor protection device

▲ SND660FB. Line backup self switching protection device

▲ SND660MB bus tie backup automatic switching protection device

▲ SND660P Voltage Transformer Protection Device

2、 Product Features

▲ Adopting a fully sealed structure, it has good seismic and dust resistance performance;

▲ Compact design, small size, light weight, beautiful appearance, easy installation;

▲ Adopting a unique reliability design, with no adjustable components, the device has good stability and strong anti-interference ability;

▲ Fully Chinese LCD display, clear and easy to understand human-machine interface, and extremely convenient operation and setting;

The power supply and control circuit of the device are both AC and DC dual-use;

▲ Equipped with RS485 bus serial communication port and integrated with Modbus standard communication protocol;

▲ With event sequence recording function, it can record 128 events without losing data in case of power failure;

▲ Equipped with comprehensive self checking function, complete abnormal record, event record, operation record, and all information is maintained in case of power failure;

▲ The product has a small and delicate appearance, a reasonable structure, and uses high-quality components and SMT technology, making it have high electrical performance;

▲ Equipped with a complete circuit breaker operation circuit;