GE 745 TRANSFORMER MANAGEMENT RELAY User Manual

8-76 745 Transformer Management Relay GE Power Management
8.3 MODBUS MEMORY MAP 8 COMMUNICATIONS
8
xxxx 0000 0000 0001 1 = Percent Differential
xxxx 0000 0000 0010 2 = Inst Differential
xxxx 0000 0000 0011 3 = W1 Phase Time OC
xxxx 0000 0000 0100 4 = W2 Phase Time OC
xxxx 0000 0000 0101 5 = W3 Phase Time OC
xxxx 0000 0000 0110 6 = W1 Phase Inst 1 OC
xxxx 0000 0000 0111 7 = W2 Phase Inst 1 OC
xxxx 0000 0000 1000 8 = W3 Phase Inst 1 OC
xxxx 0000 0000 1001 9 = W1 Phase Inst 2 OC
xxxx 0000 0000 1010 10 = W2 Phase Inst 2 OC
xxxx 0000 0000 1011 11 = W3 Phase Inst 2 OC
xxxx 0000 0000 1100 12 = W1 Neutral Time OC
xxxx 0000 0000 1101 13 = W2 Neutral Time OC
xxxx 0000 0000 1110 14 = W3 Neutral Time OC
xxxx 0000 0000 1111 15 = W1 Neutral Inst 1 OC
xxxx 0000 0001 0000 16 = W2 Neutral Inst 1 OC
xxxx 0000 0001 0001 17 = W3 Neutral Inst 1 OC
xxxx 0000 0001 0010 18 = W1 Neutral Inst 2 OC
xxxx 0000 0001 0011 19 = W2 Neutral Inst 2 OC
xxxx 0000 0001 0100 20 = W3 Neutral Inst 2 OC
xxxx 0000 0001 0101 21 = W1 Ground Time OC
xxxx 0000 0001 0110 22 = W2 Ground Time OC
xxxx 0000 0001 0111 23 = W3 Ground Time OC
xxxx 0000 0001 1000 24 = W1 Ground Inst 1 OC
xxxx 0000 0001 1001 25 = W2 Ground Inst 1 OC
xxxx 0000 0001 1010 26 = W3 Ground Inst 1 OC
xxxx 0000 0001 1011 27 = W1 Ground Inst 2 OC
xxxx 0000 0001 1100 28 = W2 Ground Inst 2 OC
xxxx 0000 0001 1101 29 = W3 Ground Inst 2 OC
xxxx 0000 0001 1110 30 = W1 Restd Gnd Fault
xxxx 0000 0001 1111 31 = W2 Restd Gnd Fault
xxxx 0000 0010 0000 32 = W3 Restd Gnd Fault
xxxx 0000 0010 0001 33 = W1 Restd Gnd Trend
xxxx 0000 0010 0010 34 = W2 Restd Gnd Trend
xxxx 0000 0010 0011 35 = W3 Restd Gnd Trend
xxxx 0000 0010 0100 36 = W1 Neg Seq Time OC
xxxx 0000 0010 0101 37 = W2 Neg Seq Time OC
xxxx 0000 0010 0110 38 = W3 Neg Seq Time OC
xxxx 0000 0010 0111 39 = W1 Neg Seq Inst OC
xxxx 0000 0010 1000 40 = W2 Neg Seq Inst OC
Table 8–7: 745 DATA FORMATS (Sheet 5 of 35)
FORMAT
CODE
APPLICABLE BITS DEFINITION
xxxx 0000 0010 1001 41 = W3 Neg Seq Inst OC
xxxx 0000 0010 1010 42 = Underfrequency 1
xxxx 0000 0010 1011 43 = Underfrequency 2
xxxx 0000 0010 1100 44 = Frequency Decay 1
xxxx 0000 0010 1101 45 = Frequency Decay 2
xxxx 0000 0010 1110 46 = Frequency Decay 3
xxxx 0000 0010 1111 47 = Frequency Decay 4
xxxx 0000 0011 0000 48 = Overfrequency
xxxx 0000 0011 0001 49 = 5th Harmonic Level
xxxx 0000 0011 0010 50 = Volts-Per-Hertz 1
xxxx 0000 0011 0011 51 = Volts-Per-Hertz 2
xxxx 0000 0011 0100 52 = W1 THD Level
xxxx 0000 0011 0101 53 = W2 THD Level
xxxx 0000 0011 0110 54 = W3 THD Level
xxxx 0000 0011 0111 55 = W1 Harmonic Derating
xxxx 0000 0011 1000 56 = W2 Harmonic Derating
xxxx 0000 0011 1001 57 = W3 Harmonic Derating
xxxx 0000 0011 1010 58 = Hottest Spot Limit
xxxx 0000 0011 1011 59 = Loss-Of-Life Limit
xxxx 0000 0011 1100 60 = Analog Level 1
xxxx 0000 0011 1101 61 = Analog Level 2
xxxx 0000 0011 1110 62 = W1 Current Demand
xxxx 0000 0011 1111 63 = W2 Current Demand
xxxx 0000 0100 0000 64 = W3 Current Demand
xxxx 0000 0100 0001 65 = Transformer Overload
xxxx 0000 0100 0010 66 = Logic Input 1
xxxx 0000 0100 0011 67 = Logic Input 2
xxxx 0000 0100 0100 68 = Logic Input 3
xxxx 0000 0100 0101 69 = Logic Input 4
xxxx 0000 0100 0110 70 = Logic Input 5
xxxx 0000 0100 0111 71 = Logic Input 6
xxxx 0000 0100 1000 72 = Logic Input 7
xxxx 0000 0100 1001 73 = Logic Input 8
xxxx 0000 0100 1010 74 = Logic Input 9
xxxx 0000 0100 1011 75 = Logic Input 10
xxxx 0000 0100 1100 76 = Logic Input 11
xxxx 0000 0100 1101 77 = Logic Input 12
xxxx 0000 0100 1110 78 = Logic Input 13
xxxx 0000 0100 1111 79 = Logic Input 14
xxxx 0000 0101 0000 80 = Logic Input 15
Table 8–7: 745 DATA FORMATS (Sheet 6 of 35)
FORMAT
CODE
APPLICABLE BITS DEFINITION

GE 745 TRANSFORMER MANAGEMENT RELAY Specifications

General

Brand	GE
Model	745 TRANSFORMER MANAGEMENT RELAY
Category	Relays
Language	English