Masu aini da dama a cikin na'ura masu gas SF₆ da kuma abu da ba a yi aiki ba a cikin fadada?

Littattafan ya kategorize hanyoyi a biyu na tsohon nau'o'i: hanyoyin gasar SF₆ da hanyoyin circuit breaker mai ba a yi amfani. Kowane mafi girma a cikin bayanin:

1.Hanyoyin Gasar SF₆

1.1 Nau'in Hanya: Tsayi gasar guda, amma density relay bai tabbatar da shawar da ko siffar alama

Sabab: Density gauge mai yawa (ya'ni, contact bai fadada)
Na'urar & Yadda Ake Iya Kiyaye: Amfani da standard gauge don kiyaye tsayi masu gaskiya. Idan an tabbatar, kara wuce density gauge.

1.2 Density Relay Tabbatar Da Shawar Ko Siffar Alama (amman tsayi ana zama guda)

Sabab 1: Signal crosstalk
Na'urar & Yadda Ake Iya Kiyaye 1: Kasa wiring na shawar da kuma kirkiro contact a density gauge da aka fi. Idan contact ana zama guda, kiyaye signal crosstalk issue.

Sabab 2: Voltage crosstalk
Na'urar & Yadda Ake Iya Kiyaye 2: Kasa wiring na shawar da kuma kirkiro contact a density gauge. Idan contact ana zama guda, kiyaye voltage crosstalk.

Sabab 3: Density gauge mai yawa
Na'urar & Yadda Ake Iya Kiyaye 3: Kasa wiring na shawar da kuma kirkiro contact. Idan an tabbatar da ya fadada idan ba ya yiwuwa, kara wuce density gauge.

1.3 Density Relay Tabbatar Da Shawar Ko Siffar Alama (tsayi ana zama guda)

Sabab: Littafin da ya haɗa a circuit breaker - kamar charging valve, column flange surface, ko sand hole a rotating housing
Na'urar & Yadda Ake Iya Kiyaye: Yi lateral pressure comparison; idan fase guda ne kawai da instrument error ya dace, yi leak detection da kuma kiyaye ita.

1.4 Tsayi Ana Zama Daka

Sabab 1: Overcharging a lokacin da ake samun gas
Na'urar & Yadda Ake Iya Kiyaye 1: Duba records na gas replenishment da kuma kiyaye pressure gauge. Idan an tabbatar, kara gas (tsayi ya ba da zaɓu 0.3 atm above rated, yawanci lamarin).

Sabab 2: Density gauge mai yawa
Na'urar & Yadda Ake Iya Kiyaye 2: Kiyaye tsayi masu gaskiya ta hanyar standard gauge. Idan an tabbatar da babu zama guda, kara wuce density gauge.

Sabab 3: Voltage crosstalk
Na'urar & Yadda Ake Iya Kiyaye 3: Idan tsayi ana zama guda da ba motor operation signal na bayan siffar alama, na'ura secondary circuit da kuma kiyaye issues.

2.Hanyoyin Circuit Breaker Mai Ba A Yi Amfani

2.1 Circuit Breaker Mai Ba A Yi Amfani

Sabab 1: Control power bai energized
Na'urar & Yadda Ake Iya Kiyaye 1: Na'ura relays ta musamman - idan dukana bai de-energized, kara control power.

Sabab 2: Remote/local switch an set zuwa "Local" position
Na'urar & Yadda Ake Iya Kiyaye 2: Na'ura control circuit disconnection signal. Kira selector zuwa "Remote" mode.

Sabab 3: Tsayi mai yawa a opening/closing circuit contacts
Na'urar & Yadda Ake Iya Kiyaye 3: Kirkiro total resistance na trip/close circuit. Dan daɗi component mai yawa da kuma kara repair ko wuce.

Sabab 4: Component mai yawa a trip/close circuit
Na'urar & Yadda Ake Iya Kiyaye 4: Kirkiro resistance na trip/close circuit. Wata component mai yawa da kuma kara wuce.

Sabab 5: Wiring mai yawa a auxiliary switch
Na'urar & Yadda Ake Iya Kiyaye 5: Kirkiro circuit resistance, dan daɗi loose connections, da kuma re-terminate securely.

Sabab 6: Mechanism mai yawa ko auxiliary switch
Na'urar & Yadda Ake Iya Kiyaye 6: Na'ura mechanism da auxiliary switch ta musamman. Kafa plan na kiyaye based on findings.

2.2 Minimum Operating Voltage Ba Ta Da Standards

Sabab 1: Bypassing lockout relay and auxiliary switch contacts for convenience
Na'urar & Yadda Ake Iya Kiyaye 1: Idan ake test coil minimum operating voltage, test ya kamata za a yi waɗannan auxiliary switch S1 and lockout contact, using momentary operation. Yi test a terminal block a circuit breaker control cabinet.

Sabab 2: Insufficient test instrument power
Na'urar & Yadda Ake Iya Kiyaye 2: Idan ake buƙata, duba instrument reliability (kamar check for AC or DC offset). Kara instrument da kuma retest.

Sabab 3: Discrepancy between instrument output voltage and display reading
Na'urar & Yadda Ake Iya Kiyaye 3: Kara ko recalibrate test instrument.

Sabab 4: Test instrument outputs AC component (waveform superposition affects low-voltage accuracy and may burn out coil or resistor; must be <10V)
Na'urar & Yadda Ake Iya Kiyaye 4: Idan ake buƙata, amfani da multimeter a AC voltage range don kirkiro AC component output. Kara instrument idan an tabbatar da ya kasance.

Sabab 5: Test instrument outputs DC component
Na'urar & Yadda Ake Iya Kiyaye 5: Idan ake buƙata, amfani da multimeter a DC voltage range don kirkiro DC component output. Kara instrument idan an tabbatar da ya kasance.

Sabab 6: Transient interference spike superimposed on output pulse, causing abnormally low minimum operating voltage
Na'urar & Yadda Ake Iya Kiyaye 6: Monitor output pulse with an oscilloscope. Tabbatar da issue da kuma kara instrument; compare results with different testers.