Underexcited Operation of Large Turbine Generators on Pacific Gas and Electric Company's System [includes discussion]

Estcourt, V. F.; Holley, C. H.; Johnson, W. R.; Light, P. H.

doi:10.1109/aieepas.1953.4498596

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) Generator Trip During Black Start Testing1

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1954

2015

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Cited by 13 publications

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“…13 shows the MEL assertion for a voltage equal to 0.95 pu of the 13.8 kV nominal voltage of the machine. Notice that the representation of the relay characteristics on the power plane according to (4) uses the magnitude of the positive-sequence operating voltage |V1| and not the nominal voltage magnitude. In (4), Z1 is the positive-sequence impedance of the characteristic in primary ohms, V1 is in primary volts, and the complex power S is expressed in megavolt amperes.…”

Section: ) Generator Trip During Black Start Testingmentioning

confidence: 99%

CFE generator protection guidelines for setting 40 and 64G elements based on simulations and field experience

Sosa-Aguiluz¹,

Guzmán²,

Leon³

2015

2015 68th Annual Conference for Protective Relay Engineers

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This paper presents guidelines developed by Comisión Federal de Electricidad, the national utility of Mexico, to improve and standardize generator protection through a better understanding of generator protection performance during normal operation and fault conditions. Based on the results of simulations and field experiences, we propose setting guidelines and improved protection schemes for loss-of-field (40) and stator ground fault (64G) protection that take advantage of the flexibility of multifunction generator protection relays.

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Section: ) Generator Trip During Black Start Testingmentioning

confidence: 99%