Briefly Introduction
20 PRS-7367
The protection modules are completely separated from other modules, and are independent
in both hardware and software. The protection functions do not depend on the communication
network, so the failure of communication network will not affect the normal operation of the
protection functions.
Mature protection configuration, fast speed and high security performance can meet the
practical requirements. Each protective element is independent, so it is very convenient for
whether adopting the selected protective element.
This device constantly measures and calculates a large amount of analog quantities, such as
phase voltage, phase-to-phase voltage, neutral voltage, phase current, neutral current, active
power, reactive power, power factor and frequency etc.
The human machine interface (HMI) with a small control module (a 320×240-dot LCD, a 9-key
keypad and 19 LED indicators) on the front panel is very friendly and convenient to the user.
This device can communicate with a SAS or RTU via different communication intermediates:
thernet network, RS-485 serial ports. The communication protocol of this device is optional:
IEC61850, IEC60870-5-103, DNP3.0 or ModBus.
This device can detect the tripping circuit of the circuit breaker and monitor the operation
(close or trip) time of a circuit breaker by checking the auxiliary contacts of the circuit breaker.
Complete event recording function is provided: 64 latest protection operation reports, 1024
latest supervision records, 1024 latest control operation records, 1024 latest user operation
records and 1024 latest records of time tagged sequence of event (SOE) can be recorded.
Powerful fault and disturbance recording function is supported: 16 latest fault disturbance
waves, 16 latest start disturbance waves and 4 manual disturbance waves, the duration of a
wave recording is configurable.
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