Table of Contents
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CHAPTER 1: INTRODUCTION
845 – E ** ** ** H
Interface
845
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Language
E
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Phase
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Currents
P1
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Slot J Bank
P5
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1/2
Phase
M1 |
Currents
M5 |
Slot K Bank
1/2
MX |
H1 |
H5 |
R1 |
R5 |
Ground Currents
G1 |
G5 |
Q1 |
Q2 |
Q3 |
Power Supply
Slot B - LV IO
Slot C- LV IO
Slot F - HV IO
Slot G - HV IO
Slot H - HV IO
Faceplate
Current
Protection
Voltage Monitoring and Protection
Control
Monitoring
Communications
Fiber Optic Connector
Wireless Communication
Security
Future Option
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
Figure 1-3: Order Codes
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N G
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H
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N
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R
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N
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R
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A
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N
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A
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N
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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
S
P
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N
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845 Transformer Protection Relay
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English
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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
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windings with voltage
5A three-phase inputs (K1), 5A three-phase inputs (K2) - three
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windings with voltage
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1A ground inputs
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5A ground inputs
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5A (J1/K1), 1A (K1/K2)
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5A (J1) + 1A (K1) + 1A (K2)
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1A (J1) + 5A (K1) + 5A (K2)
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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 (Low Voltage I/O)
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None
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6 X RTDS (Low Voltage I/O)
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2 Form A, 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,
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Int/Ext Supply)
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None (High Voltage I/O)
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Color Graphical Display
Basic: 87T, 50/87, 50P, 50N, 50G, 51P, 51N, 51G, Transformer
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Overload
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Standard configuration: Basic + 50_2, 51_2, RGF
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Advanced: Standard + 67P, 67G, 67N (requires voltage selection)
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None
Standard Voltage Monitoring & Protection: 27P, 27X, 59P, 59N,
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59X, 81O/U
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Advanced Voltage Monitoring & Protection: Basic Voltage
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Monitoring & Protection + 24, 25, 32, 55, 59_2, 81R
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Basic control: Setpoint Group Control, Virtual Inputs, Trip Bus,
B
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Breaker Control
F
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Standard control: Basic control + FlexLogic, 50BF, VTFF
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Basic monitoring: Breakers Coil Monitoring, Breaker Arcing,
B
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Harmonics, THD, Demand, Trip Counters, Harmonic Derating
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Factor
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Standard monitoring: Standard + Breaker Health, Winding
C
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Hottest Spot, Aging Factor, Loss of Life, Tap Changer
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Standard = Front USB, 1x Rear RS485: Modbus RTU, DNP3.0,
S
E
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IEC60870-5-103 + 1 x Ethernet Copper (Modbus TCP)
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Advanced = Front USB, 1x Rear RS485 + 2 x Ethernet Fiber,
1
E
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Modbus RTU/TCP, DNP3.0, IEC 60870-5-103/104, 1588, SNTP
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P
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Advanced communications + PRP
2
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Advanced communications + IEC 61850
2
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Advanced communications + PRP + IEC 61850
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None
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ST, Multi-mode 850 nm
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None
W
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WiFi 802.11
B
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Basic security
A
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Advanced security: CyberSentry Level 1
N
Not Available
845 ORDER CODES
892800C1.PDF
1–9
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