Schneider High Voltage Circuit Breaker

Low voltage ac and dc power circuit breakers used in enclosures ansi c37 13.

Schneider high voltage circuit breaker.

The principle of arc blowing and quenching is mainly to cool the arc and weaken the heat release. Schneider electric c120 modular circuit breakers can handle nominal current ranging from 10 to 125 a and offer a range of breaking capacity and tripping curves b c d. Vihaan enterprise offering 11kv 33kv schneider breaker spares high voltage at rs 15000 piece in vadodara gujarat. Ieee standard for low voltage ac power circuit breakers used in enclosures ansi c37 16.

High voltage circuit breakers need to open 1500v and 1500 2000a arcs. Rated short circuit current 50 ka 40 ka 25 ka 25 ka 25 ka 25 ka 40 ka 31 5 ka. High current high voltage circuit breaker contacts which disconnect large electrical loads and produce arcs are contained within special arcing chambers. Ieee c37 06 standard for ac high voltage cbs rated on a symmetrical current basis.

These may be in air at normal pressure or in a blast of air in sulfur hexafluoride sf6 in oil or another arc extinguishing medium including a vacuum. Low voltage power circuit breakers and ac power circuit protec tors. Therefore arc extinguishing is a problem that must be solved for high voltage circuit breakers. Ieee c37 011 guide for the application of trv for ac hv circuit breakers.

High voltage switchgear breakers complete portfolio for all applications and environments hitachi abb power grids focuses on the continual development of new technologies to increase the eco efficiency availability and reliability of ais substations products and have a century of practical experience to rely on. For instance for a 145kv maximum voltage rated circuit breaker in an effectively grounded system the trv it must handle at rated interrupting rating 40ka or 63ka is 215 000 volts. These arcs can be extended to 2m and continue to burn without extinguishing. Instruction bulletin 44021 996 01 november 1998 middletown oh usa low voltage power circuit breakers types dsii and dslii class 6035.