Study on overvoltages due to nonsimultaneous closure by hybrid method
Journal Article
·
· Electr. Eng. Jpn. (Engl. Transl.); (United States)
A new hybrid computer system for the statistical analysis of switching surge behavior consisting of the transient network analyzer (TNA) and a digital computer (used for data processing and control of TNA) was developed. The nonsimultaneous closure of the circuit breaker has a great effect on the maximum overvoltage and little effect on the average of overvoltage but it has a great effect on the standard deviation of overvoltage. The tower flashover probability is greatly dependent on the location of the steel tower. The line flashover probability is greatly dependent on the closing delay time of the circuit breaker. The distribution curve of the switching surge under nonsimultaneous closure is more similar to normal distribution curve than that under simultaneous closure.
- Research Organization:
- Univ. of Tokyo, Japan
- OSTI ID:
- 5653162
- Journal Information:
- Electr. Eng. Jpn. (Engl. Transl.); (United States), Journal Name: Electr. Eng. Jpn. (Engl. Transl.); (United States) Vol. 98:2; ISSN EENJA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
200301* -- Power Transmission & Distribution-- AC Systems
EHV & UHV-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
AC SYSTEMS
CIRCUIT BREAKERS
COMPARATIVE EVALUATIONS
COMPUTERS
DATA
DATA FORMS
DIAGRAMS
EHV AC SYSTEMS
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
EVALUATION
EXPERIMENTAL DATA
FLOWSHEETS
GRAPHS
HYBRID COMPUTERS
INFORMATION
NUMERICAL DATA
OVERVOLTAGE
POWER SYSTEMS
POWER TRANSMISSION LINES
SURGES
SWITCHING CIRCUITS
SYSTEMS ANALYSIS
TABLES
UHV AC SYSTEMS
EHV & UHV-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
AC SYSTEMS
CIRCUIT BREAKERS
COMPARATIVE EVALUATIONS
COMPUTERS
DATA
DATA FORMS
DIAGRAMS
EHV AC SYSTEMS
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
EQUIPMENT PROTECTION DEVICES
EVALUATION
EXPERIMENTAL DATA
FLOWSHEETS
GRAPHS
HYBRID COMPUTERS
INFORMATION
NUMERICAL DATA
OVERVOLTAGE
POWER SYSTEMS
POWER TRANSMISSION LINES
SURGES
SWITCHING CIRCUITS
SYSTEMS ANALYSIS
TABLES
UHV AC SYSTEMS