6.1 Frequency-supervised R.O.C.O.F Implementation 231
6.2 Frequency-supervised R.O.C.O.F Logic 232
6.3 Application Notes 232
6.3.1 Frequency-Supervised R.O.C.O.F Example 232
6.3.2 Setting Guidelines 233
7 Average Rate of Change of Frequency Protection 234
7.1 Average R.O.C.O.F Protection Implementation 234
7.2 Average R.O.C.O.F Logic 235
7.3 Application Notes 235
7.3.1 Setting Guidelines 235
Chapter 12 Power Protection Functions 237
1 Chapter Overview 239
2 Reverse Power Protection 240
2.1 Reverse Power Implementation 240
Chapter 13 Monitoring and Control 241
1 Chapter Overview 243
2 Event Records 244
2.1 Event Types 244
2.1.1 Opto-input Events 245
2.1.2 Contact Events 245
2.1.3 Alarm Events 245
2.1.4 Fault Record Events 250
2.1.5 Security Events 250
2.1.6 Maintenance Events 251
2.1.7 Protection Events 251
2.1.8 Platform Events 251
3 Disturbance Recorder 252
4 Measurements 253
4.1 Measured Quantities 253
4.1.1 Measured and Calculated Currents 253
4.1.2 Measured and Calculated Voltages 253
4.1.3 Power and Energy Quantities 253
4.1.4 Demand Values 254
4.1.5 Frequency Measurements 254
4.1.6 Other Measurements 254
4.2 Measurement Setup 254
4.3 Opto-input Time Stamping 255
5 CB Condition Monitoring 256
5.1 Application Notes 256
5.1.1 Setting the Thresholds for the Total Broken Current 256
5.1.2 Setting the thresholds for the Number of Operations 256
5.1.3 Setting the thresholds for the Operating Time 257
5.1.4 Setting the Thresholds for Excesssive Fault Frequency 257
6 CB State Monitoring 258
6.1 CB State Monitoring Logic 259
7 Circuit Breaker Control 260
7.1 CB Control using the IED Menu 260
7.2 CB Control using the Hotkeys 261
7.3 CB Control using the Function Keys 261
7.4 CB Control using the Opto-inputs 262
7.5 Remote CB Control 262
7.6 CB Healthy Check 263
7.7 CB Control Logic 264
8 Pole Dead Function 265
P24xM Contents
P24xM-TM-EN-2.1 vii
To Next Page
Loading...
