The MIFIIPI55E00HI00 is a digital feeder relay belonging to the Multilin MIF II series of General Electric (GE). The following is its detailed introduction:
GE Multilin MIF II Series.
Digital feeder relay (discontinued).
It adopts an advanced 16-bit microprocessor with strong computing capability, enabling it to process various signals and data quickly and accurately, and implement complex protection and control functions.
It features configurable logic, curves, digital inputs/outputs (I/O), and LED indicators. Users can flexibly set the relay's operating mode, protection parameters, etc., according to actual application requirements to adapt to different power system and equipment demands.
Equipped with flash memory, it supports on-site upgrades, allowing users to enhance the relay's performance or add new functions through software updates without replacing hardware.
It has two setting groups, which can be quickly switched according to different operating conditions or fault scenarios, improving the relay's flexibility and adaptability.
Adopting a withdrawable housing design, it facilitates maintenance, inspection, and component replacement, reducing equipment downtime and improving system reliability and availability.
It supports AC/DC power supply, enabling stable operation in different power supply environments and expanding the relay's application range.
It can be accessed via the front-panel keypad or communication links, allowing users to perform local or remote parameter setting, status monitoring, and control. Moreover, it is compatible with the M-series system and can be installed in half-width or full-width 19-inch racks, facilitating integration into the monitoring and management network of the entire power system.
Including phase overcurrent, ground overcurrent time-overcurrent (TOC), and instantaneous overcurrent (IOC) protection. It can promptly detect overcurrent faults in the circuit and trip or alarm according to set parameters to protect equipment and lines from overcurrent damage.
It simulates the thermal characteristics of equipment to provide overheating protection, preventing equipment damage caused by long-term overload or poor heat dissipation.
It has the function of controlling the opening and closing of circuit breakers to realize on-off control of the circuit, cooperate with the execution of protection functions, and ensure timely circuit interruption in case of faults to guarantee system safety.
After the fault is eliminated, it can automatically or manually realize the reclosing of the circuit breaker to restore power supply, improving the reliability and continuity of power supply in the power system.
It can real-time monitor parameters such as circuit current and voltage, perform metering and data processing, provide data support for the operation and management of the power system, and also facilitate fault analysis and diagnosis.
It has a 32-event recording function, which can record the relay's action events, fault information, etc. In addition, it supports analog/digital waveform capture function, which can record waveforms of signals such as current and voltage, providing more detailed and accurate information for fault analysis.
