Effectiveness of pre-insertion inductors for mitigating remote over voltages due to shunt capacitor energization

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/61.252648· OSTI ID:6046316

Bhargava, B ^[1]; Khan, A H; Imece, A F; DiPietro, J ^[2]

---

1. Southern California Edison, Rosemead, CA (United States)
2. GE Industrial and Power Systems, Schenectady, NY (United States). Power Systems Engineering Dept.

Energization of shunt capacitor banks on power systems can potentially create significant over voltages both at the location of the switched bank and at other locations in the system. Pre-insertion resistors have been used for years by the electric utility industry as one method of controlling these capacitor bank energization over voltages. Recently, pre-insertion inductors have been introduced as a cost-effective alternative to pre-insertion resistors. The results of a system study investigating remote overvoltage mitigation methods for shunt capacitor switching have shown that pre-insertion inductors are not always as effective as pre-insertion resistors. A parametric study has been performed to determine the effectiveness of pre-insertion inductors for controlling remote over voltages, such as those at the end of open-ended lines or transformer-terminated lines. The results of the parametric study show that the pre-insertion inductors used for controlling remote over voltages may become completely ineffective for certain system conditions. This finding is explained in terms of the physical phenomena.

• OSTI ID: 6046316
• Journal Information: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States) Vol. 8:3; ISSN ITPDE5; ISSN 0885-8977
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240201* -- Power System Networks
Transmission & Distribution-- AC Systems-- (1990-)
CAPACITORS
COMPARATIVE EVALUATIONS
ELECTRIC COILS
ELECTRICAL EQUIPMENT
EQUIPMENT
EVALUATION
PARAMETRIC ANALYSIS
PERFORMANCE
RESISTORS
SHUNT REACTORS
SOLENOIDS
SURGES
VOLTAGE REGULATORS