Isbn: 9798211894259 - introduction to power system protection (18 Ergebnisse)

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Zustand: Sehr gut. Zustand: Sehr gut | Seiten: 154 | Sprache: Englisch | Produktart: Bücher | Power system protection systems have three basic components: Instrument transformers, Relays, Circuit breakersThe function of the CT is to reproduce in its secondary winding a current I' that is proportional to the primary current I. The CT converts primary currents in the kiloamp range to secondary currents in the 0-5 ampere range for convenience of measurement.The function of the relay is to discriminate between normal operation and fault conditions. The OC relay in Figure 2 has an operating coil, which is connected to the CT secondary winding, and a set of contacts. When |I'| exceeds a specified ''pickup'' value, the operating coil causes the normally open contacts to close. When the relay contacts close, the trip coil of the circuit breaker is energized, which then causes the circuit breaker to open.System-protection components have the following design criteria:¿ Reliability: Operate dependably when fault conditions occur, even after remaining idle for months or years. Failure to do so may result in costly damages.¿ Selectivity: Avoid unnecessary, false trips.¿ Speed: Operate rapidly to minimize fault duration and equipment damage. Any intentional time delays should be precise.¿ Economy: Provide maximum protection at minimum cost.¿ Simplicity: Minimize protection equipment and circuitry. Since it is impossible to satisfy all these criteria simultaneously, compromises must be made in system protection.The book consists from the following sections:1. Chapter 1: Power System Faults:2. Chapter 2: Instrument Transformers.3. Chapter 3: Overcurrent and Earth Fault Protection Relays.4. Chapter 4: Radial System Protection.5. Chapter 5: Zones of Protection.6. Chapter 6: Differential Relays.7. Chapter 7: Distance Relays.8. Chapter 8: Transformer Protection.9. Chapter 9: Generator Protection.10. Chapter 10: Busbar Protection. 11. Chapter 11: Circuit Breakers.12. Chapter 12: Fuses.13. Chapter 13: References.¿.…

Zustand: Hervorragend. Zustand: Hervorragend | Seiten: 154 | Sprache: Englisch | Produktart: Bücher | Power system protection systems have three basic components: Instrument transformers, Relays, Circuit breakersThe function of the CT is to reproduce in its secondary winding a current I' that is proportional to the primary current I. The CT converts primary currents in the kiloamp range to secondary currents in the 0-5 ampere range for convenience of measurement.The function of the relay is to discriminate between normal operation and fault conditions. The OC relay in Figure 2 has an operating coil, which is connected to the CT secondary winding, and a set of contacts. When |I'| exceeds a specified ''pickup'' value, the operating coil causes the normally open contacts to close. When the relay contacts close, the trip coil of the circuit breaker is energized, which then causes the circuit breaker to open.System-protection components have the following design criteria:¿ Reliability: Operate dependably when fault conditions occur, even after remaining idle for months or years. Failure to do so may result in costly damages.¿ Selectivity: Avoid unnecessary, false trips.¿ Speed: Operate rapidly to minimize fault duration and equipment damage. Any intentional time delays should be precise.¿ Economy: Provide maximum protection at minimum cost.¿ Simplicity: Minimize protection equipment and circuitry. Since it is impossible to satisfy all these criteria simultaneously, compromises must be made in system protection.The book consists from the following sections:1. Chapter 1: Power System Faults:2. Chapter 2: Instrument Transformers.3. Chapter 3: Overcurrent and Earth Fault Protection Relays.4. Chapter 4: Radial System Protection.5. Chapter 5: Zones of Protection.6. Chapter 6: Differential Relays.7. Chapter 7: Distance Relays.8. Chapter 8: Transformer Protection.9. Chapter 9: Generator Protection.10. Chapter 10: Busbar Protection. 11. Chapter 11: Circuit Breakers.12. Chapter 12: Fuses.13. Chapter 13: References.¿.…

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Paperback. Zustand: new. Paperback. Power system protection systems have three basic components: Instrument transformers, Relays, Circuit breakers The function of the CT is to reproduce in its secondary winding a current I' that is proportional to the primary current I. The CT converts primary currents in the kiloamp range to secondary currents in the 0-5 ampere range for convenience of measurement. The function of the relay is to discriminate between normal operation and fault conditions. The OC relay in Figure 2 has an operating coil, which is connected to the CT secondary winding, and a set of contacts. When I' exceeds a specified ''pickup'' value, the operating coil causes the normally open contacts to close. When the relay contacts close, the trip coil of the circuit breaker is energized, which then causes the circuit breaker to open. System-protection components have the following design criteria: - Reliability: Operate dependably when fault conditions occur, even after remaining idle for months or years. Failure to do so may result in costly damages. - Selectivity: Avoid unnecessary, false trips. - Speed: Operate rapidly to minimize fault duration and equipment damage. Any intentional time delays should be precise. - Economy: Provide maximum protection at minimum cost. - Simplicity: Minimize protection equipment and circuitry. Since it is impossible to satisfy all these criteria simultaneously, compromises must be made in system protection. The book consists from the following sections: 1. Chapter 1: Power System Faults: 2. Chapter 2: Instrument Transformers. 3. Chapter 3: Overcurrent and Earth Fault Protection Relays. 4. Chapter 4: Radial System Protection. 5. Chapter 5: Zones of Protection. 6. Chapter 6: Differential Relays. 7. Chapter 7: Distance Relays. 8. Chapter 8: Transformer Protection. 9. Chapter 9: Generator Protection. 10. Chapter 10: Busbar Protection. 11. Chapter 11: Circuit Breakers. 12. Chapter 12: Fuses. 13. Chapter 13: References. This item is printed on demand. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.…

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Taschenbuch. Zustand: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Power system protection systems have three basic components: Instrument transformers, Relays, Circuit breakersThe function of the CT is to reproduce in its secondary winding a current I' that is proportional to the primary current I. The CT converts primary currents in the kiloamp range to secondary currents in the 0-5 ampere range for convenience of measurement.The function of the relay is to discriminate between normal operation and fault conditions. The OC relay in Figure 2 has an operating coil, which is connected to the CT secondary winding, and a set of contacts. When |I'| exceeds a specified ''pickup'' value, the operating coil causes the normally open contacts to close. When the relay contacts close, the trip coil of the circuit breaker is energized, which then causes the circuit breaker to open.System-protection components have the following design criteria:¿ Reliability: Operate dependably when fault conditions occur, even after remaining idle for months or years. Failure to do so may result in costly damages.¿ Selectivity: Avoid unnecessary, false trips.¿ Speed: Operate rapidly to minimize fault duration and equipment damage. Any intentional time delays should be precise.¿ Economy: Provide maximum protection at minimum cost.¿ Simplicity: Minimize protection equipment and circuitry. Since it is impossible to satisfy all these criteria simultaneously, compromises must be made in system protection.The book consists from the following sections:1. Chapter 1: Power System Faults:2. Chapter 2: Instrument Transformers.3. Chapter 3: Overcurrent and Earth Fault Protection Relays.4. Chapter 4: Radial System Protection.5. Chapter 5: Zones of Protection.6. Chapter 6: Differential Relays.7. Chapter 7: Distance Relays.8. Chapter 8: Transformer Protection.9. Chapter 9: Generator Protection.10. Chapter 10: Busbar Protection. 11. Chapter 11: Circuit Breakers.12. Chapter 12: Fuses.13. Chapter 13: References.¿.…

Paperback. Zustand: new. Paperback. Power system protection systems have three basic components: Instrument transformers, Relays, Circuit breakers The function of the CT is to reproduce in its secondary winding a current I' that is proportional to the primary current I. The CT converts primary currents in the kiloamp range to secondary currents in the 0-5 ampere range for convenience of measurement. The function of the relay is to discriminate between normal operation and fault conditions. The OC relay in Figure 2 has an operating coil, which is connected to the CT secondary winding, and a set of contacts. When I' exceeds a specified ''pickup'' value, the operating coil causes the normally open contacts to close. When the relay contacts close, the trip coil of the circuit breaker is energized, which then causes the circuit breaker to open. System-protection components have the following design criteria: - Reliability: Operate dependably when fault conditions occur, even after remaining idle for months or years. Failure to do so may result in costly damages. - Selectivity: Avoid unnecessary, false trips. - Speed: Operate rapidly to minimize fault duration and equipment damage. Any intentional time delays should be precise. - Economy: Provide maximum protection at minimum cost. - Simplicity: Minimize protection equipment and circuitry. Since it is impossible to satisfy all these criteria simultaneously, compromises must be made in system protection. The book consists from the following sections: 1. Chapter 1: Power System Faults: 2. Chapter 2: Instrument Transformers. 3. Chapter 3: Overcurrent and Earth Fault Protection Relays. 4. Chapter 4: Radial System Protection. 5. Chapter 5: Zones of Protection. 6. Chapter 6: Differential Relays. 7. Chapter 7: Distance Relays. 8. Chapter 8: Transformer Protection. 9. Chapter 9: Generator Protection. 10. Chapter 10: Busbar Protection. 11. Chapter 11: Circuit Breakers. 12. Chapter 12: Fuses. 13. Chapter 13: References. This item is printed on demand. Shipping may be from our Sydney, NSW warehouse or from our UK or US warehouse, depending on stock availability.…

Paperback. Zustand: new. Paperback. Power system protection systems have three basic components: Instrument transformers, Relays, Circuit breakers The function of the CT is to reproduce in its secondary winding a current I' that is proportional to the primary current I. The CT converts primary currents in the kiloamp range to secondary currents in the 0-5 ampere range for convenience of measurement. The function of the relay is to discriminate between normal operation and fault conditions. The OC relay in Figure 2 has an operating coil, which is connected to the CT secondary winding, and a set of contacts. When I' exceeds a specified ''pickup'' value, the operating coil causes the normally open contacts to close. When the relay contacts close, the trip coil of the circuit breaker is energized, which then causes the circuit breaker to open. System-protection components have the following design criteria: - Reliability: Operate dependably when fault conditions occur, even after remaining idle for months or years. Failure to do so may result in costly damages. - Selectivity: Avoid unnecessary, false trips. - Speed: Operate rapidly to minimize fault duration and equipment damage. Any intentional time delays should be precise. - Economy: Provide maximum protection at minimum cost. - Simplicity: Minimize protection equipment and circuitry. Since it is impossible to satisfy all these criteria simultaneously, compromises must be made in system protection. The book consists from the following sections: 1. Chapter 1: Power System Faults: 2. Chapter 2: Instrument Transformers. 3. Chapter 3: Overcurrent and Earth Fault Protection Relays. 4. Chapter 4: Radial System Protection. 5. Chapter 5: Zones of Protection. 6. Chapter 6: Differential Relays. 7. Chapter 7: Distance Relays. 8. Chapter 8: Transformer Protection. 9. Chapter 9: Generator Protection. 10. Chapter 10: Busbar Protection. 11. Chapter 11: Circuit Breakers. 12. Chapter 12: Fuses. 13. Chapter 13: References. This item is printed on demand. Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability.…

Zustand: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. KlappentextPower system protection systems have three basic components: Instrument transformers, Relays, Circuit breakersThe function of the CT is to reproduce in its secondary winding a current I that is proportional to the primary c.…

Taschenbuch. Zustand: Neu. Introduction to Power System Protection | Hidaia Mahmood Alassouli | Taschenbuch | Kartoniert / Broschiert | Englisch | 2026 | Blurb | EAN 9798211894259 | Verantwortliche Person für die EU: Libri GmbH, Europaallee 1, 36244 Bad Hersfeld, gpsr[at]libri[dot]de | Anbieter: preigu Print on Demand. …