Reliable Multifunctional Protection Relay Device

Series NST Microcomputer-based Integrated Protection and Measurement & Control Device is mainly applicable to comprehensive protection, automatic control, and measurement in neutral-point ungrounded systems or resistance-grounded systems with a voltage class of 35kV and below. With a high-performance industrial-grade microprocessor as its core, this device is equipped with a high-precision analog sampling module and multi-dimensional protection algorithms. It can achieve comprehensive protection functions including overcurrent, overvoltage, undervoltage, zero-sequence grounding, overload and voltage loss. Tailored to the characteristics of non-directly grounded neutral systems and resistance-grounded neutral systems, it optimizes the grounding fault detection algorithm, which enables rapid and accurate identification of concealed faults such as single-phase grounding, preventing fault escalation from affecting the entire distribution network. Meanwhile, the device is provided with…

Power Quality Control And Protection Alternating Current Contactor Circuit Breaker Molded Case Circuit Breaker