1–14 350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 1: INTRODUCTION
Metering
NOTE:
Negative values (-) represent lead and positive values (+) represent lag.
CURRENTS
Parameters:...........................................................Phase A, Phase B, Phase C, Neutral, Ground, Sensitive
Ground, Positive Sequence, Negative Sequence, Zero
Sequence, and 2nd Harmonic
Accuracy: ...............................................................See the Inputs section in Chapter 1: Specifications
VOLTAGES
Parameters:...........................................................Wye VTs: AN, BN, CN, Negative Sequence, Zero Sequence
and Auxiliary
Delta VTs: AB, BC, CA, Negative Sequence, Zero Sequence
and Auxiliary
Accuracy: ...............................................................See the Inputs section in Chapter 1: Specifications
Data capture
TRANSIENT RECORDER
Buffer size: ............................................................. 3 s
No. of buffers:.......................................................1, 3, 6
No. of channels:...................................................14
Sampling rate:......................................................4, 8, 16, or 32 samples per cycle
Triggers: ..................................................................Manual Command
Contact Input
Virtual Input
Logic Element
Element Pickup/Trip/Dropout/Alarm
Data: .........................................................................AC input channels
Contact input state
Contact output state
Virtual input state
Logic element state
Data storage:........................................................RAM - battery backed-up
FAULT RECORDER
Number of records:............................................ 1
Content:...................................................................Date and Time, first cause of fault, phases,
Currents: Ia, Ib, Ib, Ig/Isg, In - magnitudes and angles
Voltages: Van, Vbn, Vcn, Vab, Vbc, Vca, Vaux - magnitudes
and angles
System frequency
PARAMETER ACCURACY
(full scale for
CT Input is 3 x CT)
RESOLUTION RANGE
3-Phase Real Power (MW or kW) ±1% of full scale 0.1 MW ± 100000.0 kW
3-Phase Reactive Power (Mvar or kvar) ±1% of full scale 0.1 Mvar ± 100000.0 kvar
3-Phase Apparent Power (MVA or kVA) ±1% of full scale 0.1 MVA ± 100000.0 kVA
3-Phase Positive Watthour (MWh) ±1% of full scale ±0.001 MWh 50000.0 MWh
3-Phase Negative Watthour (MWh) ±1% of full scale ±0.001 MWh 50000.0 MWh
3-Phase Positive Varhour (Mvarh) ±1% of full scale ±0.001 Mvarh 50000.0 Mvarh
3-Phase Negative Varhour (Mvarh) ±1% of full scale ±0.001 Mvarh 50000.0 Mvarh
Power Factor ±0.05 0.01 -0.99 to 1.00
Frequency ±0.05 Hz 0.01 Hz 40.00 to 70.00 Hz
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