GE F650BABF2G0LOSHE multi-functional digital controller

GE F650BABF2G0LOSHE is a digital controller or protective relay launched by General Electric. It has functions such as 

protection, control, measurement and monitoring, and is widely used in power systems and industrial automation 

fields.

Specific functions

Protection function: It can be used as the main or backup protection for high-voltage/medium-voltage feeders, busbar

 couplings, transformers and capacitor banks. It can achieve high-speed arc fault detection, support load shedding 

schemes based on voltage and frequency components, and also has distributed generation (DG) interconnection 

protection functions, including active and passive anti-islanding protection.

Control function: By collecting analog quantities and comparing them with the set values, digital signals are output, 

and the control of the equipment is achieved through PLC logic programming. For instance, it can control the opening 

and closing of circuit breakers and also be interlocked with other equipment. For example, the F650 of the C201 

compressor can be interlocked with auxiliary oil pumps and ammonia blowers. When the protection operates, it can 

control the related equipment to trip.

Measurement function: It can measure electrical parameters such as voltage (V), current (I), frequency (Hz), power (W), 

apparent power (VA), and power factor (PF), and can also monitor situations such as current transformer failure and VT

 fuse failure.

Monitoring function: It is equipped with a comprehensive circuit breaker monitoring function, which can monitor the 

stroke of the circuit breaker, the closing coil and the integrity of the circuit. It can also record relevant data through 

high-resolution oscilloscopes and data loggers, and can store hundreds of events with time stamps to help solve faults.

 The trigger points, channels and sampling rates can be programmed and set by the user.

Communication function: Support serial and Ethernet interfaces, embed multiple communication protocols such as IEC

 61850 protocol (supporting Version 2), IEC 60870-5-103, IEC 62439/PRP/HSR, IEEE 802.1d/RSTP, etc., and can conduct

 data exchange with other devices or systems. Realize remote monitoring.

Human-computer interaction function: Equipped with a graphic liquid crystal display (LCD), programmable buttons 

and convenient keys, it is convenient for users to navigate menus and submenus, set parameters and view relevant

 information.

Self-diagnostic function: Equipped with a self-diagnostic function, it can help operators quickly identify and solve 

problems, reduce downtime, and improve production efficiency.

Flexible programming function: Supports programmable design, allowing users to customize programming according 

to different industrial application requirements, providing flexible control strategies to meet various complex 

application needs.