Operation Manual 37107F
MFR 3 - Multi Function Relay
© Woodward
Page 5/165
Breaker ................................................................................................................................................... 88
Breaker Logic ............................................................................................................................... 88
Synchronization ........................................................................................................................... 91
Synchronization Time Monitoring ................................................................................................ 92
Dead Bus Start ............................................................................................................................. 93
Breaker Monitoring ...................................................................................................................... 94
Mains Decoupling ........................................................................................................................ 94
Mains Settling Time ..................................................................................................................... 94
Protection ............................................................................................................................................... 95
Mains Power Monitoring .............................................................................................................. 95
Reverse/Reduced Power Monitoring ........................................................................................... 96
Generator Overload Monitoring ................................................................................................... 97
Generator Re-active Power Monitoring ....................................................................................... 98
Time-Overcurrent Monitoring (TOC) ............................................................................................ 99
Inverse Time-Overcurrent Monitoring ........................................................................................ 100
Inverse Time-Overcurrent Monitoring with Voltage Restraint ................................................... 103
Earth Fault Monitoring ............................................................................................................... 105
Generator Load Imbalance Monitoring ...................................................................................... 106
Generator Overfrequency Monitoring ........................................................................................ 107
Generator Underfrequency Monitoring ...................................................................................... 108
Generator Overvoltage Monitoring ............................................................................................ 109
Generator Undervoltage Monitoring .......................................................................................... 110
Mains Frequency Monitoring ..................................................................................................... 111
Mains Voltage Monitoring .......................................................................................................... 112
Mains d
ϕ
/dt Phase/Vector Shift Monitoring ............................................................................... 114
Mains df/dt Rate Of Change Of Frequency Monitoring (ROCOF) ............................................. 116
Mains Decoupling (Selection Between d
ϕ
/dt and df/dt) ............................................................ 116
Battery Voltage Monitoring ........................................................................................................ 117
Discrete Inputs ..................................................................................................................................... 118
Blocking of Operation Mode Selector [D02] .............................................................................. 118
Selection of the Mains Decoupling via Discrete Input [D01] ...................................................... 118
Breaker Logic via Discrete Input [D03] ...................................................................................... 119
Discrete inputs: Setting .............................................................................................................. 119
Discrete Inputs: Text .................................................................................................................. 120
Analog Inputs ....................................................................................................................................... 121
Analog Inputs: Setting ................................................................................................................ 121
Outputs ................................................................................................................................................. 125
Analog Outputs .......................................................................................................................... 125
Relay Manager........................................................................................................................... 126
Pulse Outputs ............................................................................................................................ 127
Drive ..................................................................................................................................................... 128
Delayed Monitoring and Ignition Speed ..................................................................................... 129
Shutdown (Unload and Open GCB) .......................................................................................... 130
Counter ................................................................................................................................................ 131
Maintenance Call ....................................................................................................................... 131
Operating Hours Counter ........................................................................................................... 132
kWh/kvarh Counter .................................................................................................................... 133
Resetting the Counters .............................................................................................................. 133
Real Time Clock ........................................................................................................................ 134
Current Slave Pointer ................................................................................................................ 134
C
HAPTER
7.
C
OMMISSIONING
A
PPENDIX
A.
D
IMENSIONS
...................................................................................................... 137
A
PPENDIX
B.
T
ECHNICAL
D
ATA
.............................................................................................. 138
A
PPENDIX
C.
M
EASURED
Q
UANTITIES AND
A
CCURACY
........................................................... 140
