GE 845 - Page 13

CHAPTER 1: INTRODUCTION DESCRIPTION OF THE 845 TRANSFORMER PROTECTION RELAY
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–3
Figure 1-1: Single Line Diagram
894014A3.CDR
Winding 3
Amps
Amps
50/87
87T
Block
3
3
Calculate
Restraint
Amps
Calculate
Operate
Amps
Metering
Transient Recorder
Event Recorder
Fault Report
Data Logger
Calculate
2nd and 5th
Harmonics
Harmonic
Restraint
59N 24
Winding 1
Harmonics
Amps Amps
51N-1
50N-1
51N-2
50N-2
Calculate
3I_0
Calculate
3I_0
Amps
50P-2
51P-2
50P-1
55
51P-1
50BF-1
50G-1
51G-1
87G-1
50G-2
51G-2
87G-2
81R81U 81O
RTD input
67P
67N
3V_0
Amps
Harmonics
50BF-2
AFP
59P 27P 27X
845
Тransformer Protection System
67G-1 67G-2
59X
Winding 2
3
33
T.C.
Tap
Position
OLTC
Failure
3VTs
49
Harmonics
Amps
50P-3
51P-3
50BF-3
VTFF
32
59_2 25
51_2
50_2
LIGHT