Electronic Devices on Discrete Components for Industrial and Power Engineering

69829fm.pdf......Page 1
Electronic Devices on Discrete Components for Industrial and Power Engineering......Page 2
Author......Page 4
Contents......Page 5
Preface......Page 7
Appendix D: High-Voltage Triacs......Page 0
1.1 SEMICONDUCTING MATERIALS AND P-N-JUNCTION......Page 9
1.2 THE TRANSISTOR’S PRINCIPLE......Page 15
1.3 SOME TRANSISTOR KINDS......Page 17
1.4 BIPOLAR TRANSISTOR GENERAL MODES......Page 26
1.5 TRANSISTOR DEVICES IN SWITCHING MODE......Page 32
1.6 THYRISTORS......Page 39
1.7 CONTROL OF THYRISTORS ON DIRECT CURRENT......Page 47
1.8 CONTROL OF THYRISTORS ON ALTERNATING CURRENT......Page 51
1.9 DIAC, TRIAC, QUADRAC…......Page 52
2.1 WHAT IS IT?......Page 56
2.2 POLARIZED AND MEMORY REED SWITCHES......Page 61
2.3 POWER REED SWITCHES......Page 67
3.1 HV REED RELAYS FOR LOW CURRENT DC CIRCUITS......Page 69
3.2 HV REED RELAYS FOR HIGH CURRENT APPLICATIONS......Page 77
3.3 RELAY RESPONDING TO THE CURRENT CHANGING RATE......Page 80
3.4 DIFFERENTIAL HV REED RELAY......Page 81
3.5 REED-BASED DEVICES FOR CURRENT MEASUREMENT IN HIGH POTENTIAL CIRCUITS......Page 82
3.6 SPARK-ARRESTING CIRCUITS FOR REED RELAYS......Page 84
4.1 SWITCHING DEVICES......Page 88
4.2 GENERATORS, MULTIVIBRATORS, PULSE-PAIRS......Page 102
4.3 TIMERS......Page 109
4.4 LOGIC ELEMENTS......Page 112
4.5 OVERCURRENT AND OVERVOLTAGE PROTECTION MODULES......Page 116
4.6 VOLTAGE STABILIZERS AND REGULATORS......Page 122
4.7 OTHER FUNCTIONAL MODULES FOR AUTOMATIC DEVICES......Page 129
5.1 UNIVERSAL OVERCURRENT PROTECTIVE RELAY......Page 135
5.2 SIMPLE VERY HIGH-SPEED OVERCURRENT PROTECTION RELAY......Page 144
5.3 THE NEW GENERATION UNIVERSAL PURPOSE HYBRID REED – SOLID-STATE PROTECTIVE RELAYS......Page 158
5.4 AUTOMATIC HIGH-VOLTAGE CIRCUIT BREAKERS......Page 167
5.5 HIGH SPEED VOLTAGE UNBALANCE RELAY......Page 171
5.6 IMPULSE ACTION PROTECTIVE RELAY......Page 173
6.1 POWER SUPPLY OF MICROPROCESSOR-BASED PROTECTIVE RELAYS AT EMERGENCY MODE......Page 176
6.2 INCREASING RELIABILITY OF TRIP CONTACTS IN MICROPROCESSOR-BASED PROTECTIVE RELAYS......Page 184
7.1 ARC PROTECTION DEVICE FOR SWITCHBOARDS 6 – 24 KV......Page 199
7.2 AUTOMATIC-RESET SHORT CIRCUIT INDICATOR FOR 6 – 24 KV BUS BARS......Page 201
7.3 HIGH-CURRENT PULSE TRANSDUCER FOR METAL-OXIDE SURGE ARRESTER......Page 203
7.4 CURRENT TRANSFORMERS’ PROTECTION FROM SECONDARY CIRCIRCUIT DISCONNECTION......Page 209
7.5 A SINGLE-PHASE SHORT CIRCUIT INDICATOR FOR INTERNAL HV CABLES IN MEDIUM VOLTAGE SUBSTATION......Page 213
7.6 GROUND CIRCUIT FAULT INDICATOR FOR UNDERGROUND HV CABLE NETWORK......Page 216
7.7 HV INDICATORS FOR SWITCHGEARS AND SWITCHBOARDS......Page 220
Appendix A1: High-Speed Miniature Reed Switches......Page 226
Appendix A2: High-Voltage Vacuum Reed Switches......Page 233
Appendix A3: Mercury Wetted Reed Switches......Page 244
Appendix A4: Industrial Dry Reed Switches......Page 250
Appendix B1: High-Voltage Bipolar Transistors......Page 280
Appendix B2: High-Voltage Darlington Transistors......Page 331
Appendix B3: High-Voltage FET Transistors......Page 339
Appendix B4: High-Voltage IGBT Transistors......Page 349
Appendix C: High-Voltage Thyristors......Page 365
Appendix D: High-Voltage Triacs......Page 386
Appendix E: Bilateral Voltage-Trigger Switches......Page 398