Rotor heating effects from geomagnetic induced currents

Journal Article · Fri Apr 01 00:00:00 EST 1994 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/61.296248· OSTI ID:6985985

Gish, W B; Feero, W E; Rockefeller, G D ^[1]

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1. Electric Research and Management, Inc., State College, PA (United States)

The heating effects at the end-ring connection areas of the rotor due to the harmonic current generation of a saturating unit transformer from geomagnetic induced currents (GIC) on the transmission system have been calculated from observed data and from EMTP studies sponsored by the Electric Power Research Institute. These calculations show that damage may occur during strong GIC storm activity. This damage can occur from unit transformer saturation or other transformers in the system near the generator. The possibility of damage should be monitored during strong GIC storms through the use of appropriate negative sequence current monitoring and alarms.

• OSTI ID: 6985985
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Vol. 9:2; ISSN 0885-8977
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
ELECTRIC GENERATORS
ROTORS
COMPUTERIZED SIMULATION
HEATING
GEOMAGNETIC FIELD
POWER SYSTEMS
ENERGY SYSTEMS
MAGNETIC FIELDS
SIMULATION
240100* - Power Systems- (1990-)