Development of improved methods for type testing present day medium voltage circuit breakers for outdoor service

Journal Article · Thu Dec 31 23:00:00 EST 1992 · IEEE Transactions on Power Delivery (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/61.180336· OSTI ID:6502699

Kuznetsov, S B; Spindle, H E ^[1]

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1. PSM High Power Labs., East Pittsburgh, PA (United States)

Many of the standards for required fault current interrupting tests for circuit breakers rated at 15 to 72.5 kV were written for oil breakers or magnetically blasted air circuit breakers. In either case the interrupting medium which is produced by vaporizing, decomposing and ionizing the materials in the immediate vicinity of the arc is gas either mostly hydrogen for oil circuit breakers or air for magnetically blasted circuit breakers. These circuit breakers were primarily limited by the total current flowing through the breaker and by the peak voltage applied to the breaker after interruption. Consequently the test circuit requirements for standards were written to provide a sensible compromise between the system requirements and the capabilities of the testing facilities available. Today vacuum and gas circuit interrupters dominate this entire range of voltages and the entire range of interrupting currents for breakers in this voltage range. This paper examines test methods to cover the switching requirements for new systems and operating methods.

• OSTI ID: 6502699
• 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. 8:1; ISSN ITPDE5; ISSN 0885-8977
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
240200* -- Power System Networks
Transmission & Distribution-- (1990-)
CIRCUIT BREAKERS
ELECTRICAL EQUIPMENT
ELECTRICAL FAULTS
ELECTRICAL TESTING
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
INSULATING OILS
MATERIALS TESTING
NONDESTRUCTIVE TESTING
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
POWER SUBSTATIONS
SWITCHES
TESTING