|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||307/64 ; 307/113 ; 335/161|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 68 인용 특허 : 0|
An automatic transfer switch having two sets of phase switches, one set for connection between a normal source of power and a load, and the other set for connection between an emergency power source and the load. The transfer switch includes two pairs of neutral switches, one pair for connection in parallel between the normal source neutral and the load neutral, and the other pair for connection in parallel between the emergency source neutral and the load neutral. The phase switches can operate to provide an “open transition”transfer, wherein the phase ...
An automatic transfer switch for transferring an electrical load from a normal source of electric power to an emergency source of electric power, and vice versa, comprising: (a) a first set of phase switches for connection between the normal source and a load, (b) a second set of phase switches for connection between the emergency source and the load, (c) first and second neutral switches for connection between a normal source neutral conductor and the load neutral conductor, (d) third and fourth neutral switches for connection between an emergency sourc...