2-2 F35 MULTIPLE FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
PRODUCT DESCRIPTION CHAPTER 2: PRODUCT DESCRIPTION
2
The F35 uses flash memory technology that allows field upgrading as new features are added. Firmware and software are
upgradable.
The following single-line diagram illustrates the relay functionality using American National Standards Institute (ANSI)
device numbers.
Table 2-1: ANSI device numbers and functions supported
Figure 2-1: Single-line diagram
Table 2-2: Other device functions
Device number Function Device number Function
27P Phase undervoltage 51N Neutral time overcurrent
27X Auxiliary undervoltage 51P Phase time overcurrent
32N Wattmetric zero-sequence directional 51_2 Negative-sequence time overcurrent
49 Thermal overload protection 52 AC circuit breaker
50DD Disturbance detector 59N Neutral overvoltage
50G Ground instantaneous overcurrent 59P Phase overvoltage
50N Neutral instantaneous overcurrent 59X Auxiliary overvoltage
50P Phase instantaneous overcurrent 79 Autoreclose
50_2 Negative-sequence instantaneous overcurrent 81U Underfrequency
51G Ground time overcurrent
Function Function Function
Breaker arcing current (I
2
t) Disconnect switches Non-volatile selector switch
Breaker control DNP 3.0 or IEC 60870-5-104
communications
Oscillography
Breaker flashover Ethernet Global Data protocol Setting groups (6)
Breaker restrike Event recorder Teleprotection inputs and outputs
Cold load pickup Fault detector and fault report Time synchronization over IRIG-B or IEEE
1588
Contact inputs (up to 120) FlexElementsâ„¢ (16) Time synchronization over SNTP
Contact outputs (up to 72) FlexLogic equations Transducer inputs and outputs
Control pushbuttons IEC 60870-5-103 communications User-definable displays
CyberSentryâ„¢ security IEC 61850 communications User-programmable LEDs
Data logger IEC 62351-9 data and communications
security
User-programmable pushbuttons
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