Misali na gida da ke faruwa a cikin koguna masu shiga?

A cikin mutanen da shirya kisan gida, ina iya mulki da abubuwa da suka faruwa a kan kisan gida, kisan karami, da kuma kisan harkar. Wannan taka bayyana halayensu, sababobinsu, da kuma yadda ake zaba masu lissafi:

I. Lissafin Abubuwan Kisan Gida
(1) Harkar Dukkanka

Harkar dukkanka ana faruwa saboda dukkancin ba ta fi dace, ci gadi ba ta fi kai, ko kuma asynchrony na uku. Idan cin kammalwar dukkancin ya kama 1.5 koyi cin kammalwar da ke faruwa, wannan za mu kasa tsari a lokacin 40℃. Misali, FW4-10 switch baki da rayuwarsu mai kisan gida na 5 waɗanda ake rarrabe 800A.

Yadda Ake Zaba Masu Lissafi:

• Kare dukkancin da ke silver da majiri mai ammonia 25%-28%, sannan kara neutral Vaseline.

• Saita ci gadin dukkancin mai yawa zuwa ≥150N.

• Kore wani abubuwa da kuma kore kusa zuwa ≤3.3ms/≤5ms.

(2) Faduwar Fusible

Faduwar fusible ana faruwa saboda kudin kisa, kudin karami, ko kuma zabi ba daidai (misali, RN1-10 fuses da rating 2-5000A). Bara fuses bayan ina tabbatar da sababin, kuma inganta cewa kisan gida zan iya kula kisa a cikin "transfer current" range.

(3) Arcing Na Bincike

Abubuwan arcing sun faruwa saboda kudin kisan arcing ko kisan dukkancin da ke kusa. Tuntubi karatu arcing chamber da kuma kisan cylinder seals a kisan pneumatic switches, kuma kare kisan kisa mai karami ba daidai idan an yi amfani da GB/T 3804.

II. Lissafin Abubuwan Kisan Karami
(1) Jamming na Mechanism na Operation

Jamming ana faruwa saboda kudin karami, ci gadi ba ta fi kai, da sauransu. Tabbata jamming via motor current analysis, sannan:

• Tuntu connecting rod torque (M10 bolt 8.8 grade → 20±2N·m).

• Kara molybdenum disulfide grease (drop point ≥300℃).

• Bara springs da ke fatigued da kuma kore spindle angle/crank arm.

(2) Kudin Dukkancin

Kudin dukkancin ana faruwa saboda kisan kudin kisa da kisan arcing. Bara CuW80 contacts idan kudin ya kama 3mm. Tuntubi kudin kadan da kuma inganta synchronism (opening ≤3.3ms, closing ≤5ms) don kula kisa na uku.

(3) Kudin Interlock

Kudin interlock, domin kisan kudin karami, ya faruwa saboda kudin karami. Tuntubi interlock structures da kuma test functions, bara components idan an bukata.

III. Lissafin Abubuwan Kisan Harkar
(1) Harkar Mai Yawan Tsari

Yawan tsari ana faruwa a cikin lokutan da ke da yawan tsari (misali, yanayin kasashen ruwa). Amfani da EPDM seals da:

• Duba da kara nano moisture-proof coatings.

• Bara insulation parts ko oil (inganta breakdown voltage ≥25kV for oil-immersed switches).

(2) Kudin Insulation

Kudin insulation ana faruwa a cikin lokutan da ke da yawan tsari (10℃ rise shortens life by 50%-70%). Tuntubi via tanδ, insulation resistance, da kuma partial discharge (PD ≤10pC). Bara aged parts da kuma amfani da CT scans for epoxy components.

(3) Kudin Insulation Resistance

Test with a 2500V megohmmeter (≥1000MΩ). Tabbata drops via oil analysis da kuma bara/repair faulty parts.