Protection Relays

for Feeder Protection

Feeder protection ensures the uninterrupted operation of feeders, detecting faults and disturbances and avoiding their propagation to further parts of the electrical network.

Microelettrica solutions for Feeder protection are suitable to meet different needs, from overcurrent and earth-fault protection to additional voltage, frequency and directional discrimination functions, as well as specific standard compliances.

RBW/D

Directional Overcurrent Definite Time
AF  32, 67, 67N

RBW/I

Directional Overcurrent Inverse Time
AF  32, 67, 67N

N-DIN-016

LV relay for CEI-016
F
CEI-016

N-DIN-F

LV Feeder relay
F
AF  46, 49

MC0A

Earth-Fault relay
AF  50N/51N, 51BF, 86

MC20

Basic Feeder Relay
F

MC20-CEI

CEI relay with Directional Earth-Fault
F
AF  67N
CEI-016

MC20-016

CEI-016 relay
F
CEI-016

MC30

Feeder relay MC30
F
AF  49

MC30-R2

Feeder Relay with Autoreclosure
F
AF  49, 74TCS, 79

MC40-SEF2

Feeder Relay with Sensitive Earth-Fault and Autoreclosure
F
AF  49, 64SEF, 79

MC40-SR

Feeder relay MC40
F
AF  49

MC2-30T

Advanced Feeder relay
FF
AF  74TCS

FMR

Complete Feeder relay
FF, VV
AF  51V, 74TCS

FMR-M

Complete Feeder/Motor relay
F, VV, M, Dir
AF  51V, 74TCS

FMR-Ts

Complete Feeder relay with Touchscreen HMI
FF, VV
AF  51V, 74TCS

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Feeder Protection

PROTECTIVE FUNCTION PACKAGES
F   Standard Feeder (ANSI 50/51, 51BF, 50N/51N, 68, 86)
FF   Advanced Feeder (ANSI 46, 49, 50/51, 51BF, 50N/51N, 68, 79, 86)
V   Standard Voltage (ANSI 27, 59, 81, 68, 86)
VV   Advanced Voltage (ANSI 27, 27V1, 59, 59N, 59V2, 68, 81, 86)
M   Motor (ANSI 37, 46, 48, 49, 51LR, 64, 66, 68, 86)
Dir   Directional (ANSI 67, 67N)
AF   Additional Functions
Note: 68, 86 not present in N-DIN series
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PROTECTIVE FUNCTION PACKAGES
F   Standard Feeder (ANSI 50/51, 51BF, 50N/51N, 68, 86)
FF   Advanced Feeder (ANSI 46, 49, 50/51, 51BF, 50N/51N, 68, 79, 86)
V   Standard Voltage (ANSI 27, 59, 81, 68, 86)
VV   Advanced Voltage (ANSI 27, 27V1, 59, 59N, 59V2, 68, 81, 86)
M   Motor (ANSI 37, 46, 48, 49, 51LR, 64, 66, 68, 86)
Dir   Directional (ANSI 67, 67N)
AF   Additional Functions
Note: 68, 86 not present in N-DIN series