Substation Faults and Protection - 8 Angebote vergleichen
| Preise | 2013 | 2014 | 2015 | 2017 | 2019 |
|---|---|---|---|---|---|
| Schnitt | Fr. 13.65 (€ 13.99)¹ | Fr. 13.38 (€ 13.71)¹ | Fr. 16.23 (€ 16.63)¹ | Fr. 13.46 (€ 13.79)¹ | Fr. 15.39 (€ 15.77)¹ |
| Nachfrage |
1
Substation Faults and Protection (2013)
~EN PB NWISBN: 9783656412335 bzw. 3656412332, vermutlich in Englisch, GRIN Publishing, Taschenbuch, neu.
Lieferung aus: Österreich, Versandfertig in 4 - 6 Tagen.
Substation Faults and Protection Technical Report from the year 2011 in the subject Engineering - Power Engineering, grade: A, Atlantic International University (Niger Delta University), course: SFP 673, language: English, abstract: The purpose of this work is to establish the type of faults that may result when substations are sited in the region of the Niger Delta due to the prevailing climatic conditions. This will aimed at ensuring as far as possible a small probability of damage to substation insulations. For most transmission lines, relatively large numbers of yearly flashovers are permitted but such number of insulation damages is absolutely not allowed for substations. Flashover of insulation at substation means a short circuit on the busbar which even with the modern means of relay protection can cause most sever system damages. Substations unlike lines have very low probability of damage therefore a quantitative idea of the probability, the so called index of lightning resistance of a substation is used. It is equal to the calculated number of years during which a voltage dangerous for the substation installation does not occur. For modern high voltage substations, the index of lightning resistance is calculated as hundred or even as thousand years which is a proof of attempts made by designers to ensure the largest degree of lightning resistance of substation (Rao,2008,U.S Dept of Agri.2001,Martinez and Castro 2003). Substations must be protected from the direct lightning strokes and voltage waves travelling from the line as well as switching surges. In transmission lines the induced strokes (indirect strokes) due to lightning are important for 11kv lines only. For high voltage transmission lines (up to 220kv) the surges due direct lightning strokes determine the line insulations design. For extra high voltage (400kv and above) the severity of swiching surges is much more than that due to lightning (Gupta, 2008). Whether external or int, 19.04.2013, Taschenbuch.
Substation Faults and Protection Technical Report from the year 2011 in the subject Engineering - Power Engineering, grade: A, Atlantic International University (Niger Delta University), course: SFP 673, language: English, abstract: The purpose of this work is to establish the type of faults that may result when substations are sited in the region of the Niger Delta due to the prevailing climatic conditions. This will aimed at ensuring as far as possible a small probability of damage to substation insulations. For most transmission lines, relatively large numbers of yearly flashovers are permitted but such number of insulation damages is absolutely not allowed for substations. Flashover of insulation at substation means a short circuit on the busbar which even with the modern means of relay protection can cause most sever system damages. Substations unlike lines have very low probability of damage therefore a quantitative idea of the probability, the so called index of lightning resistance of a substation is used. It is equal to the calculated number of years during which a voltage dangerous for the substation installation does not occur. For modern high voltage substations, the index of lightning resistance is calculated as hundred or even as thousand years which is a proof of attempts made by designers to ensure the largest degree of lightning resistance of substation (Rao,2008,U.S Dept of Agri.2001,Martinez and Castro 2003). Substations must be protected from the direct lightning strokes and voltage waves travelling from the line as well as switching surges. In transmission lines the induced strokes (indirect strokes) due to lightning are important for 11kv lines only. For high voltage transmission lines (up to 220kv) the surges due direct lightning strokes determine the line insulations design. For extra high voltage (400kv and above) the severity of swiching surges is much more than that due to lightning (Gupta, 2008). Whether external or int, 19.04.2013, Taschenbuch.
2
Substation Faults and Protection (2011)
~EN PB NWISBN: 9783656412335 bzw. 3656412332, vermutlich in Englisch, Grin Verlag, Taschenbuch, neu.
Lieferung aus: Deutschland, zzgl. Versandkosten.
Von Händler/Antiquariat, buecher.de GmbH & Co. KG, [1].
Technical Report from the year 2011 in the subject Engineering - Power Engineering, grade: A, Atlantic International University (Niger Delta University), course: SFP 673, language: English, abstract: The purpose of this work is to establish the type of faults that may result when substations are sited in the region of the Niger Delta due to the prevailing climatic conditions. This will aimed at ensuring as far as possible a small probability of damage to substation insulations. For most transmission lines, relatively large numbers of yearly flashovers are permitted but such number of insulation damages is absolutely not allowed for substations. Flashover of insulation at substation means a short circuit on the busbar which even with the modern means of relay protection can cause most sever system damages. Substations unlike lines have very low probability of damage therefore a quantitative idea of the probability, the so called index of lightning resistance of a substation is used. It is equal to the calculated number of years during which a voltage dangerous for the substation installation does not occur. For modern high voltage substations, the index of lightning resistance is calculated as hundred or even as thousand years which is a proof of attempts made by designers to ensure the largest degree of lightning resistance of substation (Rao,2008,U.S Dept of Agri.2001,Martinez and Castro 2003). Substations must be protected from the direct lightning strokes and voltage waves travelling from the line as well as switching surges. In transmission lines the induced strokes (indirect strokes) due to lightning are important for 11kv lines only. For high voltage transmission lines (up to 220kv) the surges due direct lightning strokes determine the line insulations design. For extra high voltage (400kv and above) the severity of swiching surges is much more than that due to lightning (Gupta, 2008). Whether external or internal over voltage, for reliable operations of substation proper protection is necessary. There are factors that may not produce over voltage but are capable of affecting the operation of the equipments as well as lowering the flashover, these are humidity, rain temperature, pressure and to some extent contamination on the surface of insulator and equipments (outdoor). For proper consideration of these factors with the external and internal over voltages, a proper selection of protective devices may be made for the safe operation of substation 2013. 24 S. 210 mm Versandfertig in 6-10 Tagen, Softcover, Neuware, offene Rechnung (Vorkasse vorbehalten).
Von Händler/Antiquariat, buecher.de GmbH & Co. KG, [1].
Technical Report from the year 2011 in the subject Engineering - Power Engineering, grade: A, Atlantic International University (Niger Delta University), course: SFP 673, language: English, abstract: The purpose of this work is to establish the type of faults that may result when substations are sited in the region of the Niger Delta due to the prevailing climatic conditions. This will aimed at ensuring as far as possible a small probability of damage to substation insulations. For most transmission lines, relatively large numbers of yearly flashovers are permitted but such number of insulation damages is absolutely not allowed for substations. Flashover of insulation at substation means a short circuit on the busbar which even with the modern means of relay protection can cause most sever system damages. Substations unlike lines have very low probability of damage therefore a quantitative idea of the probability, the so called index of lightning resistance of a substation is used. It is equal to the calculated number of years during which a voltage dangerous for the substation installation does not occur. For modern high voltage substations, the index of lightning resistance is calculated as hundred or even as thousand years which is a proof of attempts made by designers to ensure the largest degree of lightning resistance of substation (Rao,2008,U.S Dept of Agri.2001,Martinez and Castro 2003). Substations must be protected from the direct lightning strokes and voltage waves travelling from the line as well as switching surges. In transmission lines the induced strokes (indirect strokes) due to lightning are important for 11kv lines only. For high voltage transmission lines (up to 220kv) the surges due direct lightning strokes determine the line insulations design. For extra high voltage (400kv and above) the severity of swiching surges is much more than that due to lightning (Gupta, 2008). Whether external or internal over voltage, for reliable operations of substation proper protection is necessary. There are factors that may not produce over voltage but are capable of affecting the operation of the equipments as well as lowering the flashover, these are humidity, rain temperature, pressure and to some extent contamination on the surface of insulator and equipments (outdoor). For proper consideration of these factors with the external and internal over voltages, a proper selection of protective devices may be made for the safe operation of substation 2013. 24 S. 210 mm Versandfertig in 6-10 Tagen, Softcover, Neuware, offene Rechnung (Vorkasse vorbehalten).
3
Substation Faults and Protection (2013)
EN PB NW FEISBN: 9783656412335 bzw. 3656412332, in Englisch, 24 Seiten, GRIN Verlag, Taschenbuch, neu, Erstausgabe.
Neu ab: 12,99 € (4 Angebote)
Zu den weiteren 4 Angeboten bei Amazon.de
Lieferung aus: Deutschland, Gewöhnlich versandfertig in 2 bis 3 Tagen. Tatsächliche Versandkosten können abweichen.
Von Händler/Antiquariat, Books on Demand GmbH.
Die Beschreibung dieses Angebotes ist von geringer Qualität oder in einer Fremdsprache. Trotzdem anzeigen
Von Händler/Antiquariat, Books on Demand GmbH.
Die Beschreibung dieses Angebotes ist von geringer Qualität oder in einer Fremdsprache. Trotzdem anzeigen
4
Symbolbild
Substation Faults and Protection (Paperback Or Softback)
~EN PB NWISBN: 9783656412335 bzw. 3656412332, vermutlich in Englisch, Grin Publishing, Taschenbuch, neu.
Lieferung aus: Vereinigte Staaten von Amerika, zzgl. Versandkosten, Versandgebiet: DOM.
Von Händler/Antiquariat, BargainBookStores, MI, Grand Rapids, [RE:4].
Substation Faults and Protection (Paperback or Softback), Paperback or Softback.
Von Händler/Antiquariat, BargainBookStores, MI, Grand Rapids, [RE:4].
Substation Faults and Protection (Paperback or Softback), Paperback or Softback.
5
Symbolbild
Substation Faults and Protection (2013)
~EN PB NWISBN: 9783656412335 bzw. 3656412332, vermutlich in Englisch, GRIN Publishing, Taschenbuch, neu.
Lieferung aus: Vereinigte Staaten von Amerika, zzgl. Versandkosten, Versandgebiet: DOM.
Von Händler/Antiquariat, Awesomebooks_Newbooks, DE, Wilmington, [RE:4].
PF.
Von Händler/Antiquariat, Awesomebooks_Newbooks, DE, Wilmington, [RE:4].
PF.
6
Symbolbild
Substation Faults and Protection (2013)
~EN PB NWISBN: 9783656412335 bzw. 3656412332, vermutlich in Englisch, Grin Verlag, Taschenbuch, neu.
Lieferung aus: Vereinigte Staaten von Amerika, zzgl. Versandkosten, Versandgebiet: STOCKNEW.
Von Händler/Antiquariat, Alibris, NV, Sparks, [RE:5].
Trade paperback.
Von Händler/Antiquariat, Alibris, NV, Sparks, [RE:5].
Trade paperback.
7
Symbolbild
Substation Faults and Protection
~EN PB NWISBN: 9783656412335 bzw. 3656412332, vermutlich in Englisch, Grin Verlag, Taschenbuch, neu.
Lieferung aus: Vereinigtes Königreich Grossbritannien und Nordirland, zzgl. Versandkosten, Versandgebiet: EUR.
Von Händler/Antiquariat, Books2anywhere, GLOUCESTERSHIRE, Fairford, [RE:4].
Softcover.
Von Händler/Antiquariat, Books2anywhere, GLOUCESTERSHIRE, Fairford, [RE:4].
Softcover.
Lade…