Furfuri da sassan kwallon karkashin kungiyar sashe na tsohon kafa na yawan karamin kashi

Bayanin Nema Aiki na Circuit Breaker

Nema Aiki na Gudanarwa – Yanki/Tsakiya

An yi aikin wannan bayanai a yankin, da kuma tsakiyan. A cikin neman gudanarwa, an sake koyar da kyautar spring da kuma an sake gudanar da shi. Don neman a yankin, ana bayar da abokan kontrol mai zama da AC supply zuwa motar na spring charging, sannan an gudanar da circuit breaker ta hanyar switch na TNC. Ana nemo irin cin koyar na closing da kuma tafunfuna motar na spring charging. Idan neman a tsakiya yana iya a kan gida, za a yi baya ta hanyar system na tsakiya; amma idan ba, za a bayar da signal mai yanki zuwa terminal na tsakiya don nemo tafunfuna gudanarwar.

Nema Aiki na Trip – Yanki/Tsakiya

Neman trip operation test tana da shi a yankin, da kuma tsakiyan. A cikin neman gudanarwa, an sake koyar da kyautar spring da kuma an sake gudanar da shi ta hanyar switch na trip. Don neman a yankin, ana bayar da abokan kontrol mai zama da AC supply zuwa motar na spring charging, sannan an gudanar da circuit breaker ta hanyar switch na TNC, a nan ana nemo irin cin koyar na tripping. Neman a tsakiya tana da shi idan gida ta fi sani; idan ta fi sani, za a yi baya ta hanyar system na tsakiya. Amma idan ba, za a bayar da signal mai yanki zuwa terminal na tsakiya don nemo tafunfuna gudanarwar.

Neman Aiki na Protection Trip

Don in yi wannan aiki, ya kamata a zama circuit breaker a cikin gidan. Sannan za a bayar da abokan rated voltage zuwa master trip relay don nemo idan an gudanar da shi da kuma matsayinta koyar na trip.

Neman Aiki na Operating Mechanism na Medium Voltage Circuit Breaker

Hakurin 1 tana nuna wiring diagram schematic na medium voltage vacuum circuit breaker:

Neman Aiki na Emergency Trip

A cikin wannan aiki, ya kamata a zama circuit breaker a cikin charged ko ON. Idan aka saka emergency push button, muna sauka trip da kuma nemo tafunfuna gudanarwar.

Neman Aiki na Auxiliary Switch Operation

Idan circuit breaker tana cikin gidan, za a amfani da continuity tester don nemo auxiliary contacts (NO/NC status). Sannan za a gudanar da circuit breaker da kuma za a duba contact daban-daban ta hanyar continuity tester don nufin cewa an samu sunan NC/NO.

On-Off Indications (Lamp + Flag)

Idan circuit breaker tana cikin gidan, za a nemo lamp da flag indicators na relay. Sannan za a gudanar da circuit breaker da kuma za a duba tafunfuna indicator lamp daban-daban.

Trip / Trip Circuit Healthy Lamp Indication

Sake amfani da relay da kuma nemo indication na trip lamp.

Limit Switch for Spring Charge Motor

A cikin wannan aiki, za a bayar da AC power zuwa motar na spring charging, da kuma muna nemo tafunfuna motar da kuma tafunfuna spring charging. Idan spring tana zama charged, tafunfuna motar ya kamata zama automatically stop.

Test / Service Limit Switch

Wannan aiki tana nemo tafunfuna limit switch na test/service. A lokacin racking out na circuit breaker, za a nemo indicator tana cikin wanda ke test; a lokacin racking in na circuit breaker, za a nemo indicator tana cikin wanda ke service.

Operation Counter

Idan akwai operational counter a cikin circuit breaker, za a yi wannan aiki. Sake amfani da circuit breaker da kuma za a duba changes a cikin counter don tabbatar da number of operations.

Heater / Heater Switch / Thermostat

Bayar da control AC power zuwa heater da kuma nemo idan an amfani da shi daidai.

Function of Illumination & Socket Switch

A cikin wannan aiki, za a nemo tafunfuna internal illumination da socket switch na panel. Sake amfani da limit switch da kuma nemo tafunfuna illumination circuit.

Wadannan neman aiken tana da muhimmanci don neman tafunfuna masu operating mechanisms na medium voltage circuit breaker, don hakkin da kuma ingantaccen equipment.