NEMA, Rossyln, Va., has published SG 4-2009, "Alternating Current High-Voltage Circuit Breakers." The standard, which NEMA published under license from IEEE, Piscataway, N.J., was revised by the ...
ABB has released a new 145-kV high-voltage circuit breaker. The 145PM63-B high-voltage circuit breaker uses a new high-performance interrupter to serve 121-145 kV applications at 40-, 50-, and 63-kA ...
The National Electrical Manufacturers Association (NEMA) has published SG 4-2009 Alternating Current High-Voltage Circuit Breakers. The standard, which NEMA published under license from IEEE, was ...
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