
Manual 37351A
MFR 11 Packages - Protection Relay
Page 6/59
© Woodward
Chapter 1.
General Information
Introduction
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The MFR 11 model is a generator or mains protection unit packaged into one compact device. Typical applica-
tions are generators and switchgear equipment that require independent protection architecture. Different pack-
ages offer additional functionality
The detailed model description for the MFR 11 reads as follows:
MFR1110 B/
ABDEF..Z
Packages according to the package list
.
These packages can be found in the manual. Each chapter headline points
out if the described function is standard or part of a package.
Mounting
[B].. Flush-mounting
Current transformer, secondary
[0] = not available
Voltage transformer/PTs, secondary
[0] = not available
[1] = 100 Vac
[4] = 400 Vac
[7] = 690 Vac
Type
Examples:
•
MFR1110B/
MP
(flush mounted, standard unit with 100 Vac PT inputs with
MP Package
[over-/undervoltage,
voltage asymmetry, and over-/underfrequency monitoring, 3 relay outputs])
•
MFR1140B/
G59N
(flush mounted, standard unit with 400 Vac PT inputs with
G59N
Package
[
MP Package
+
phase/vector shift and df/dt ROCOF monitoring, 8 relay outputs, wide-range power supply])