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Features
PCS-9571 fault current limiter product is a complete solution for limiting short-circuit current in AC current system. It integrates a series of AC high-voltage measurement, control and protection principles and experience of NR, and it also combines many years of the running experience of high-voltage flexible DC converter valve and hybrid DC circuit breaker etc. power electronic products. It mainly have the following characteristics:
Comprehensive system-level analysis
Relying on the technical accumulation of many professional directions of NR, design from the aspects of power system temporary and steady-state performance, over-voltage analysis and relay protection etc., and reasonably select the fault current limiter configuration scheme to effectively achieve
the better current-limiting effect.
Equipotential design of fast switch and operating mechanism
The operating mechanism and the fast switch break are at a high potential, eliminating the insulation parts between each other, effectively increasing the opening and closing speed and increasing the mechanical life.
High potential isolation power supply
The isolation transformer is used for high-potential power supply, which does not depend on the system, so the opening and closing operation when the system line is not powered can be realized.
Rapid detection and identification of fault
It can quickly identify line fault for it integrates high-samplingrate current transformer, through the high-speed and high-integration control, the criteria based on line current instantaneous value and slope etc., are adopted.
Compact structure
The primary main device only includes the fast switch and the current limiting reactor, and has a small floor space.
