Amsa da PM Actuators Mai Yawan Inganci? Kari Taurari da Fadada Na

Kasuwanci na kungiyar da ake amfani da su wajen taimaka masu karamin sana'a ta gida da ke tsara da inganci. Idan akwai abubuwa daban-daban da suka da muhimmanci, ba a yi tabbacin abubuwan da suka fi yawa ba. Misali, idan akwai karfi mai yawa a cikin gasar, akwai karfin zabe da suka da damar zuwa 8% a gasar, wanda ya nuna cewa nau'o'in kasuwanci ba su iya dogara abubuwan da suka da su ba.

Aiki na kungiyar da ake amfani da ita a matsayin kungiyar da ake amfani da shi a matsayin permanent magnet actuator (PMA) sun hada da alama da ake amfani da su don karamin sana'a, coil da ake amfani da shi don kudin, da kuma coil da ake amfani da shi don bude. Yana ci gaba da halaitaccen kungiyoyi, kungiyar da ake amfani da shi don kudin da kuma kungiyar da ake amfani da shi don kasa da ake amfani da shi a matsayin spring-operated mechanisms, wanda ya haɗa da kungiyar mai tsawo da abubuwan da suka da su biyu. Ana amfani da alama don kudin da kuma kasa da ake amfani da shi a matsayin electromagnetic actuation da permanent magnetic latching da electronic control. Amma, saboda hanyar aiki mai kyau da ake buƙata don kudin da kuma kasa, ana bukatar capacitor mai kyau don adadin energy.

An kategorize PMA mechanisms a matsayin abubuwa daban-daban, musamman single-stable da bi-stable, da kuma single-coil ko dual-coil configurations, ba a bayyana abubuwan da suka da muhimmanci a kan abubuwan da su ba.

Bi-stable permanent magnet mechanism an amfani da alama a matsayin kudin da kuma kasa da ake amfani da shi don kasa. Kudin da kuma kasu ake amfani da shi an samun shi tare da amfani da excitation coils masu kudin da kuma kasa don kudin da kuma kasa da ake amfani da shi a matsayin moving iron core. A cikin hanyar da sama, bi-stable type yana da kudin mai kyau. Abubuwan da suka da kyau sun haɗa da kudin mai kyau, wanda yake ci gaba da amfani da kudin mai kyau, yana ci gaba da amfani da kudin mai kyau, da kuma kusan damar controller. Da kuma, an buƙata capacitor mai kyau—typical 100V/100,000μF electrolytic capacitor can support reclosing operations. Amma, initial opening speed of a bi-stable PMA vacuum circuit breaker yana da kasa mai kyau da average speed over full contact travel.

Single-stable permanent magnet mechanism an amfani da alama don kudin da ake amfani da shi don kasa, inda ake amfani da spring don kasa. Kudin an samun shi tare da amfani da closing coil don kudin da ake amfani da shi a matsayin moving core, tare da kudin da ake amfani da shi don kasa a matsayin spring. Kasu an samun shi tare da amfani da kasa a matsayin spring.

Saboda single-stable PMA an amfani da spring don kasa, initial opening speed and average opening speed masu kyau da bi-stable type, wanda yana da kasa mai kyau da kasa da ake amfani da shi. Amma, saboda an buƙata energy a matsayin spring don kasa, kudin mai kyau yana da kasa mai kyau da bi-stable mechanism a cikin hanyar da sama.

AMVAC permanent magnet actuated vacuum circuit breaker yana da maximum rated voltage of 27kV. 15kV model yana da rated current up to 3000A, short-circuit breaking current of 50kA, da kuma short-circuit making current of 130kA.

Daga Baka Yana Iya Dogara?

1. Cost-Effectiveness (Value for Money)

PMA circuit breakers suna da abubuwan da suka da su biyu, kungiyar mai tsawo, da electromagnetic force characteristics well-matched to vacuum interrupters. Suna da mechanical endurance exceeding 100,000 operations—significantly higher than the 30,000 operations typical of spring mechanisms. Wannan yana haɗa su da abubuwan da ake amfani da su a matsayin kudin da kuma kasa da ake amfani da shi. Electronic control suna taimaka wa automation. Amma, high-quality PMA breakers suna da cost mai kyau. Saboda haka, ana amfani da su a matsayin premium applications abroad, such as in petrochemical plants and offshore platforms, where maintenance-free operation, high reliability, and improved power continuity are critical.

2. Quality Concerns

PMA breakers sun buƙata abubuwan da suka da muhimmanci, including capacitors, permanent magnets, electromagnets, and electronic circuits. Comparing low-end PMA breakers with standard spring mechanisms is unfair and misleading. Using inferior capacitors or other components compromises overall product quality. Unlike spring-operated mechanisms, which allow individual component replacement and repair, PMA mechanisms are difficult and costly to repair. This high replacement cost further hinders the widespread adoption of PMA circuit breakers.