Page 72 - L . V S W I T C H G E A R
P. 72

intelligent
                                                                                            Air Circuit Breaker



                 Air Circuit Breaker







            A circuit breaker is used for switching mecha-
            nism and ƉrotecƟon of the sLJstem͘ Kther as-
            sociated devises and vwcomponents are also
            used for this purpose with circuit breakers
            like fuses͕ relaLJs͕ switches etc͘ Circuit break-
            ers are widelLJ used in industries as well as                              Air Circuit Breaker

            Wower sLJstem for controlling and protecƟon
            of diīerent parts of the circuit like switch-                       The type of circuit breaker, which op-
            gears, Transformers, motors, Generators /                           erates in air (where air-blast as an arc
            alternator etc͘, which leads the sLJstem stable                      quenching medium) at atmospheric
            and reliable͘                                                       pressure, is known to be an Air Circuit
                                                                                Breaker.  Air circuit breaker has com-
            There are diīerent tLJpes                                            pletely replaced by oil circuit breaker. In
            of circuit breakers avail-                                          ĚŝīĞƌĞŶƚ ĐŽƵŶƚƌŝĞƐ͕ ƐƟůů ŝƚ ŝƐ Ă ƉƌĞĨĞƌĂďůĞ
            able in the market and                                              choice to use an Air circuit breaker up to
                                                                                15KV because, there is no chance of oil
            we will discuss one bLJ                                              ĮƌĞ ůŝŬĞ ŝŶ Žŝů ĐŝƌĐƵŝƚ ďƌĞĂŬĞƌ͘
            one in detail͘







                  ConstrucƟon of Air-Circuit Breaker



             1.  K&& ďƵƩŽŶ ;KͿ
             2.  KE ďƵƩŽŶ ;/Ϳ
             3.  DĂŝŶ ĐŽŶƚĂĐƚ ƉŽƐŝƟŽŶ ŝŶĚŝĐĂƚŽƌ                                   ApplicaƟon and hses of
             4.  Energy storage mechanism status indicator
             5.  ZĞƐĞƚ  ƵƩŽŶ                                                         Air Circuit Breaker:
             6. LED Indicators
             7. Controller
             8.  ͞ ŽŶŶĞĐƟŽŶ͕͟ ͞dĞƐƚ͟ ĂŶĚ ͞ŝƐŽůĂƚĞĚ͟ ƉŽƐŝƟŽŶ ƐƚŽƉƉĞƌ             ͻ  /ƚ ŝƐ ƵƐĞĚ ĨŽƌ ƉƌŽƚĞĐƟŽŶ ŽĨ ƉůĂŶƚƐ
                 ;ƚŚĞ ƚŚƌĞĞͲƉŽƐŝƟŽŶ ůĂƚĐŚŝŶŐͬůŽĐŬŝŶŐ ŵĞĐŚĂŶŝƐŵͿ                 ͻ  /ƚ ŝƐ ƵƐĞĚ ĨŽƌ ĐŽŵŵŽŶ ƉƌŽƚĞĐƟŽŶ ŽĨ
             9. User-supplied padlock                                               electrical machines
             10.  ŽŶŶĞĐƟŽŶ ͕͟͞ dĞƐƚ ͞ĂŶĚ͟ ƐĞƉĂƌĂƟŽŶ ͞ŽĨ ƚŚĞ ƉŽƐŝƟŽŶ             ͻ  /ƚ ƵƐĞĚ ĨŽƌ ƉƌŽƚĞĐƟŽŶ ŽĨ ƚƌĂŶƐĨŽƌŵĞƌƐ͕
                 ŝŶĚŝĐĂƟŽŶ                                                          capacitors and generators.
                                   ĞƉĂƌĂƟŽŶ͕ ;  Ϳ dĞƐƚ ; dͿ WŽƐŝƟŽŶ ŝŶĚŝ
             11.  ŽŶŶĞĐƟŽŶ ;  Ϳ ^ĞƉĂƌĂƟŽŶ͕ ;  Ϳ dĞƐƚ ; dͿ WŽƐŝƟŽŶ ŝŶĚŝ-         ͻ  Air circuit breaker is also used in Elec-
                 ĐĂƟŽŶ ĐŽŶƚĂĐƚƐ                                                     tricity sharing system and NGD about
             12. ZĂƚĞĚ EĂŵĞ WůĂƚĞ                                                   15kV
             13. Digital Displays                                               ͻ  Also used in Low as well as High voltage
             14. Mechanical                                                         ĂŶĚ  ƵƌƌĞŶƚƐ ĂƉƉůŝĐĂƟŽŶƐ ͘
                 energy storage
                 handle
             15. ^ŚĂŬĞ ;/EͬKhdͿ
             16. Rocker reposi-
                 tory
             17. Fault trip reset
                 ďƵƩŽŶ




         72
   67   68   69   70   71   72   73   74   75   76   77