Boundary protection controller

Boundary protection controller

Features of the boundary protection controller: voltage acquisition; current acquisition; have interphase protection, zero sequence protection, telecommand and extended remote-control closing-opening function; fault detection: have short circuit, ground alarm and other detection and active upload function; record for storage fault of events: the current and voltage setting value shall be recorded not less than 20 times at the time of fault; support serial communication and adopt the standard balanced 101 communication protocol; configure a communication module and an external GPRS module when communicating with the master station separately; have power status indication, switch position status, switch energy storage status, phase overcurrent, ground indication, device anomalies, communication indications and other functions; support local constantan value setting, manual closing-opening operation and fault memory; the protective constant value can be set without charge; have local, remote and latch-up protection output switch; electrical interface with military-grade aviation connector or terminal; built-in super capacitor.

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Technical Parameter

Operating Voltage DC48V
Working frequency 50Hz
The operating voltage allows the fluctuation range ±20%
Power consumption <10W
Sampling voltage input range (quadratic) 0~300V
Overcurrent protection current setting range (secondary) 0~5A
Zero sequence protection current setting range (secondary) 0~3A
Overcurrent protection action delay time 0~0.5s
Zero sequence protection action delay time 0~60s
Contact output life ≥50000 times
Power frequency withstand voltage 2.5kV/1min
Impact pressure 5Kv
Electrostatic discharge interference capability IV
Fast transient interference capability IV