Table of Contents
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CHAPTER 1: INTRODUCTION
845 – E ** ** ** *
Interface
845
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Application
E
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NN |
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Phase Currents
Slot J Bank 1/2
P1
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P5
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M1 |
Phase Currents
Slot K Bank 1/2
M5 |
MX |
H1 |
H5 |
R1 |
R5 |
Ground Currents
G1 |
G5 |
Q1 |
Q2 |
Q3 |
Power Supply
Slot B - LV I/O
Slot C- LV I/O
Slot F - HV I/O
Slot G - HV I/O
Slot H - HV I/O
Faceplate
Current Protection
Voltage Monitoring and Protection
Control
Monitoring
Communications
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
Figure 1-3: 845 Order Codes
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A
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L
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H
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N
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R
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S
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N
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R
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S
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A
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N
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A
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L
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N
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F
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A
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M
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G
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S
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M
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A
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N
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P
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B
F
T
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N
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845 Transformer Protection System
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Standard
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Two windings, no voltage
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1A three-phase current inputs (J1) with voltage (J2)
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5A three-phase current inputs (J1) with voltage (J2)
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1A three-phase inputs (K1), 1A three-phase inputs (K2)
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5A three-phase inputs (K1), 5A three-phase inputs (K2)
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5A three-phase inputs (K1), 1A three-phase inputs (K2)
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1A three-phase inputs (K1) - two windings with voltage
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5A three-phase inputs (K1) - two windings with voltage
1A three-phase inputs (K1), 1A three-phase inputs (K2) - three windings
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with voltage
5A three-phase inputs (K1), 5A three-phase inputs (K2) - three windings
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with voltage
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1A ground inputs
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5A ground inputs
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5A, 1A - (NN+MX) or (P5+H1) - In line with Phase Current
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5A (J1) + 1A (K1) + 1A (K2)
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1A (J1) + 5A (K1) + 5A (K2)
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24 to 48 V DC
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110 to 250 V DC/110 to 230 V AC
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None
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6 X RTDS (Pt100, Ni100, Ni120)
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6 X RTDS (Pt100, Ni100, Ni120, Cu10)
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None
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6 X RTDS (Pt100, Ni100, Ni120)
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6 X RTDS (Pt100, Ni100, Ni120, Cu10)
2 Form A (Vmon), 3 Form C, 7 Digital Inputs (Low/High Voltage, Int/Ext
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Supply)
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None
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2 Form A (Vmon), 3 Form C, 7 Digital Inputs (Low/High Voltage, Int/Ext
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Supply)
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7 DcmA O/P + 4 DcmA I/P + 1 RTD
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None (High Voltage I/O)
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10 Digital Inputs + 4 Arc Flash Inputs
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2 Form A (Vmon), 3 Form C, 7 Digital Inputs (Low/High voltage, Int/Ext
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supply)
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Basic = Membrane Keypad
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Standard = Rugged Keypad
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Basic: 87T, 50/87, 50P, 50N, 50G, 51P, 51N, 51G, Transformer Overload
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Standard: Basic + 50_2, 51_2, RGF
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Advanced: Standard + 67P, 67G, 67N (requires voltage selection)
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None
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Standard Protection: 27P, 27X, 59P, 59N, 59X, 81O/U
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Advanced Protection: Standard Protection + 24, 25, 32, 55, 59_2, 81R
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Basic: Setpoint Group Control, Virtual Inputs, Trip Bus, Breaker Control
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Standard: Basic + FlexLogic, 50BF, VTFF
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Advanced HMI = Standard + Tab PBs, Annunciator Panel, Configurable
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SLDs with Bay Control
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Basic: Breakers Coil Monitoring, Breaker Arcing, Harmonics, THD,
B
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Demand, Trip Counters, Harmonic Derating Factor
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Standard: Basic + Breaker Health, Health Report, Thermal Elements,
C
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Tap Changer, Learned Data, Energization and Historical Max Record
A
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Advanced = Standard + Harmonic Detection
M
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M&D = Standard + Dissolved Gas Analysis, Integrated Fault Report
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Standard: Front USB, 1 x Rear RS485: Modbus RTU, DNP3.0, IEC60870-
S
E
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5-103 + 1 x Ethernet (Modbus TCP, DNP)
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Advanced: Front USB, 1 x Rear RS485 + 2 x Ethernet Fiber, MODBUS
1
E
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RTU/TCP, DNP3.0, IEC 60870-5-103/104, 1588, SNTP, OPC UA
1
P
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Advanced + PRP
2
A
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Advanced + IEC 61850
2
E
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Advanced + PRP + IEC 61850
3
A
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Advanced + Extended IEC 61850
3
E
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Advanced + PRP + Extended IEC 61850
845 ORDER CODES
1–9
- Quick Links:
- Typical Wiring Diagrams
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