
–5–
M‑3425A Generator Protection Relay
PROTECTIVE FUNCTIONS (
cont
.)
Device
Setpoint
Number Function
Ranges
Increment
Accuracy
†
Third‑Harmonic Undervoltage, Neutral
Pickup #1, #2
0.10 to 14.00 V
0.01 V
0.1 V or
1%
Positive Sequence
Voltage Block
5 to 180 V
1 V
0.5 V or
0.5%
Forward Under Power Block 0.01 to 1.00 PU
0.01 PU
0.01 PU or
2%
Reverse Under Power Block –1.00 to –0.01 PU
0.01 PU
0.01 PU or
2%
Lead Under VAr Block
–1.00 to –0.01 PU
0.01 PU
0.01 PU or
2%
Lag Under VAr Block
0.01 to 1.00 PU
0.01 PU
0.01 PU or
2%
Lead Power Factor Block
0.01 to 1.00
0.01
0.03 PU or
3%
Lag Power Factor Block
0.01 to 1.00
0.01
0.03 PU or
3%
High Band Forward
Power Block
0.01 to 1.00 PU
0.01 PU
0.01 PU or
2%
Low Band Forward
Power Block
0.01 to 1.00 PU
0.01 PU
0.01 PU or
2%
Time Delay #1, #2
1 to 8160 Cycles
1 Cycle
–1 to +5 Cycles or
1%
Directional Power
Pickup #1, #2, #3
–
3.000 to +3.000
PU
0.001
PU
0.002 PU or
2%
Time Delay #1, #2, #3
1 to 8160 Cycles
1 Cycle
+16 Cycles or
1%
The minimum Pickup limits are
–
.002 and +.002 respectively.
The per‑unit pickup is based on nominal VT secondary voltage and nominal CT secondary current settings. This
function can be selected as either overpower or underpower in the forward direction (positive setting) or reverse
direction (negative setting). Element #3 can be set as real power or reactive power. This function includes a pro‑
grammable target LED that may be disabled.
Loss of Field (dual‑zone offset‑mho characteristic)
Circle Diameter #1, #2
0.1 to 100.0
Ω
0.1
Ω
0.1
Ω
or
5%
(0.5 to 500.0
Ω
)
(
0.5
Ω
or
5%)
Offset #1, #2
–
50.0 to 50.0
Ω
0.1
Ω
0.1
Ω
or
5%
(
–
250.0 to 250.0
Ω
)
(
0.5
Ω
or
5%)
Time Delay #1, #2
1 to 8160 Cycles
1 Cycle
1 Cycle or
1%
Time Delay with
Voltage Control #1, #2
1 to 8160 Cycles
1 Cycle
1 Cycle or
1%
Voltage Control
5 to 180 V
1 V
0.5 V or
0.5%
(positive sequence)
Directional Element
0° to 20°
1°
—
Time delay with voltage control for each zone can be individually enabled.
†
Select the greater of these accuracy values.
Values in parentheses apply to 1 A CT secondary rating.
40
32
27
TN
Содержание M-3425A
Страница 1: ...Instruction Book M 3425A Generator Protection ...
Страница 38: ...This Page Left Intentionally Blank ...
Страница 39: ...800 3425A SP 10MC2 07 12 2001 Beckwith Electric Co All Rights Reserved Printed in U S A 01 67 04 25 03 ...
Страница 43: ...This Page Left Intentionally Blank ...
Страница 57: ...xiv M 3425A Instruction Book This Page Left Intentionally Blank ...
Страница 63: ...M 3425A Instruction Book 1 6 This Page Left Intentionally Blank ...
Страница 73: ...M 3425A Instruction Book 2 10 Path Monitor Primary Metering Status Figure 2 4 Primary Metering Status Screen ...
Страница 95: ...M 3425A Instruction Book 2 32 This Page Left Intentionally Blank ...
Страница 97: ...M 3425A Instruction Book 3 2 Figure 3 2 IPScom Main Screen ...
Страница 103: ...M 3425A Instruction Book 3 8 Path Monitor Primary Metering and Status Figure 3 9 Primary Metering Status Screen ...
Страница 105: ...M 3425A Instruction Book 3 10 Path Monitor Secondary Metering and Status Figure 3 10 Secondary Metering Status Screen ...
Страница 123: ...M 3425A Instruction Book 3 28 Figure 3 30 View Sequence of Events Recorder Screen ...
Страница 131: ...M 3425A Instruction Book 3 36 This Page Left Intentionally Blank ...
Страница 162: ...4 31 System Setup and Setpoints 4 Figure 4 15 IPScom Relay Setup System Dialog Screen ...
Страница 180: ...4 49 System Setup and Setpoints 4 Table 4 5 Impedance Calculation Figure 4 30 Phase Distance 21 Setpoint Ranges ...
Страница 183: ...4 52 M 3425A Instruction Book Figure 4 32 Volts Per Hertz 24 Setpoint Ranges ...
Страница 187: ...4 56 M 3425A Instruction Book Figure 4 34 Sync Check 25 Setpoint Ranges ...
Страница 202: ...4 71 System Setup and Setpoints 4 Figure 4 50 49 Function Overload Curves ...
Страница 203: ...4 72 M 3425A Instruction Book Figure 4 51 Stator Thermal Protection 49 Setpoint Ranges ...
Страница 215: ...4 84 M 3425A Instruction Book Figure 4 62 Phase Overvoltage 59 Setpoint Ranges ...
Страница 219: ...4 88 M 3425A Instruction Book Figure 4 65 Overvoltage Neutral Circuit or Zero Sequence 59N Setpoint Ranges ...
Страница 236: ...4 105 System Setup and Setpoints 4 Figure 4 77 Residual Directional Overcurrent 67N Setpoint Ranges ...
Страница 239: ...4 108 M 3425A Instruction Book Figure 4 80 Out of Step 78 Setpoint Ranges ...
Страница 242: ...4 111 System Setup and Setpoints 4 Figure 4 82 Frequency 81 Setpoint Ranges ...
Страница 261: ...M 3425A Instruction Book 5 6 Figure 5 5 Mounting Dimensions for GE L 2 Cabinet H3 and H4 ...
Страница 277: ...M 3425A Instruction Book 5 22 Figure 5 14 M 3425A Circuit Board ...
Страница 278: ...Installation 5 5 23 Figure 5 15 M 3425A Circuit Board Expanded I O ...
Страница 280: ...Installation 5 5 25 Figure 5 17 20 Hz Frequency Generator Housing Panel Surface Mount ...
Страница 281: ...M 3425A Instruction Book 5 26 Figure 5 18 20 Hz Frequency Generator Housing Panel Flush Mount ...
Страница 282: ...Installation 5 5 27 Figure 5 19 20 Hz Band Pass Filter Housing Panel Surface Mount ...
Страница 283: ...M 3425A Instruction Book 5 28 Figure 5 20 20 Hz Band Pass Filter Housing Panel Flush Mount ...
Страница 284: ...Installation 5 5 29 Figure 5 21 20 Hz Measuring Current Transformer 400 5 A CT ...
Страница 421: ...D 2 M 3425A Instruction Book Figure D 1 Volts Hz 24 Inverse Curve Family 1 Inverse Square ...
Страница 422: ...Inverse Time Curves Appendix D D 3 Figure D 2 Volts Hz 24 Inverse Family Curve 2 ...
Страница 423: ...D 4 M 3425A Instruction Book Figure D 3 Volts Hz 24IT Inverse Curve Family 3 ...
Страница 424: ...Inverse Time Curves Appendix D D 5 Figure D 4 Volts Hz 24IT Inverse Curve Family 4 ...
Страница 427: ...D 8 M 3425A Instruction Book Figure D 5 BECO Definite Time Overcurrent Curve ...
Страница 428: ...Inverse Time Curves Appendix D D 9 Figure D 6 BECO Inverse Time Overcurrent Curve ...
Страница 429: ...D 10 M 3425A Instruction Book Figure D 7 BECO Very Inverse Time Overcurrent Curve ...
Страница 430: ...Inverse Time Curves Appendix D D 11 Figure D 8 BECO Extremely Inverse Time Overcurrent Curve ...
Страница 437: ...D 18 M 3425A Instruction Book Figure D 15 IEEE Extremely Inverse Time Overcurrent Curves ...
Страница 469: ...F 30 M 3425A Instruction Book This Page Left Intentionally Blank ...
Страница 479: ...H 2 M 3425A Instruction Book This Page Left Intentionally Blank ...
Страница 481: ...This Page Left Intentionally Blank ...