Transients during 138-kV SF6 breaker switching of low inductive currents

Journal Article · · IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/28.231985· OSTI ID:5798169

Elkins, D L ^[1]; Jain, A C ^[2]; McDermott, T E ^[3]; Rees, V ^[4]

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1. Esso Engineering Ltd., Leatherhead (United Kingdom)
2. Esso Production Malaysia, Inc., Kuala Lumpur (Malaysia)
3. Power Technologies, Inc., Wilmerding, PA (United States)
4. Asea Brown Boveri, Hanau (Germany)

This paper discusses the effects of switching low inductive currents with 138-kV SF6 breakers in a petrochemical plant. Switching transients are believed to have contributed to the failure of a 13.8-kV PT and a 13.8-kV air magnetic circuit breaker. The high-frequency transient surge can transfer across a transformer due to transformer capacitances between the high- and low-voltage windings. The electromagnetic transient program system (ETPS) model and different case studies are discussed with the effect of different transformer winding capacitances. The interruption mechanisms of low inductive currents is also described. This analysis demonstrates the need to conduct switching transient studies and the need for surge arresters on transformer secondary terminals under certain system conditions.

• OSTI ID: 5798169
• Journal Information: IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Industry Applications (Institute of Electrical and Electronics Engineers); (United States) Vol. 29:4; ISSN 0093-9994; ISSN ITIACR
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240200* -- Power System Networks
Transmission & Distribution-- (1990-)
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320303 -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Equipment & Processes
CHEMICAL PLANTS
CIRCUIT BREAKERS
ELECTRIC POTENTIAL
ELECTRICAL EQUIPMENT
ELECTRICAL TRANSIENTS
ELECTRONIC CIRCUITS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
INDUSTRIAL PLANTS
MATHEMATICAL MODELS
OPERATION
PETROCHEMICAL PLANTS
SWITCHING CIRCUITS
TRANSFORMERS
TRANSIENTS
VOLTAGE DROP