Eaton’s Cutler-Hammer FP-4000 Feeder Protection Relay provides
complete 3-phase and ground overcurrent and voltage protection
plus metering. It may be used as primary protection on feeders, mains
and tie circuit breaker applications, and as backup protection for trans
formers, high voltage lines and differential protection. The relay is most
commonly used on medium voltage switchgear applications.
The FP-4000 takes full advantage of its microprocessor technology,
providing the user new freedoms and a wealth of data-gathering
features. The relay performs self-checking of all major hardware and
firmware protection elements to ensure their operation in the event of
a system or component electrical failure or fault. Protection functions
are well suited for main and distribution feeder circuit applications.
Programmable logic control functions make the FP-4000 relay ideally
suited for main-tie-main and main 1/main 2 transfer schemes.
The zone interlocking feature can be utilized for bus protection instead
of an expensive and complicated bus differential (87B) scheme.
The FP-4000 works directly with the Cutler-Hammer Digitrip 3000
and Digitrip MV relays. New breaker failure logic provides faster
remote backup clearing times for stuck breaker operation.
The FP-4000 provides trip and close circuit monitoring and alarming
features. It continually monitors the complete trip and close circuits
for continuity and readiness to trip. Open and close pushbuttons are
conveniently located on the front of the relay for local breaker operation.
Loss-of-vacuum monitoring is activated when the breaker is open.
Residual current is monitored and alarmed if detected.
Eaton operates an independent development center, the ‘Cybersecurity
Center of Excellence’ (CCoE), specifically designed to combat the threats
posed by cyber attacks. All Eaton products are regularly qualified for
secure operation.
The XV-102 devices with an Embedded Linux operating system
seamlessly integrate into Eaton CCoE’s ‘Defense in Depth’ cybersecurity
concept. The devices boot from a write protected memory, and only
operating system software updates signed by Eaton can be installed
on the devices. All device settings and interfaces are secured via
password entries, which also withstand a brute force attack.
Communication channels can be selectively activated and encrypted
for the required tasks. However, cybersecurity and usability are not
mutually exclusive. Guided by the first-boot agent, the prepared
application software and device configuration are installed easily and
efficiently via a USB memory during machine or system commissioning.
The application software and process data can optionally be installed
on an encrypted SD card, and in the event of a device replacement,
the application-specific data can simply be taken over to the replacement
device.

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