Misali na Iyakar Gwaji-gwaji na Makarfi a Ingantaccen IEE-Business

A cikin "Habubuwan Da Duk Da Ake Amfani Da Su Don Yawanci Aiki A Kula Da Tashar Kula Na China (Edishin Da Ake Sake Rubuta)" da aka fitar a shekarar 2018, masu aiki da zai iya koyar tushen aiki na kula mai ma'ana, ya maye bayanai masu amfani da hanyoyi, alamun, sako mai yawan kwallon kasa, da sako mai yawan kasa na kayan aiki mai ma'ana, ya tsara tsari na aiki na sakowa, za su iya tabbatar da shi a kan aiki, da kuma bincike alamun halittuwa a matsayin karamin aiki don in ba a faru wasu abu daban-daban.

A cikin babban yanayi na kayan aiki mai ma'ana, misali merging units, intelligent terminals, da measurement and control devices, a cikin kula mai ma'ana, tsari na aiki na sako mai yawan kasa ita ce muhimmanci wajen aiki na kula a lokacin da cuta ta faru.

Tsarin aiki na sako mai yawan kasa a cikin kula mai ma'ana sun hada:

a) Idan an gata aiki na sako mai yawan kasa na protection device, ya kamata a tabbatar da cewa protection device ta shahara a matsayin signal state, da kuma sako mai yawan kasa na soft (misali failure start soft pressure plates) na secondary circuits na related operating protection devices (misali bus differential protection, safety automatic devices, etc.) suka zama withdrawn.

b) Idan primary equipment ta shiga rike, idan an gata aiki na sako mai yawan kasa na bay merging unit, ya kamata a tabbatar da cewa SV soft pressure plates na related protection devices suka zama withdrawn, musamman waɗanda ke jirgin aiki. Idan primary equipment bai shiga rike, bay merging unit maintenance pressure plate zai iya zama engaged bayan related protection devices suka shahara a matsayin signal state ko disabled. Don bus merging units, idan primary equipment bai shiga rike, bay merging unit maintenance pressure plate zai iya zama engaged bayan a yi amfani da tsari na bus voltage abnormality procedures da kuma a yi apply for changes to the corresponding relay protection operation mode as needed.

c) Idan primary equipment ta shiga rike, idan an gata aiki na sako mai yawan kasa na intelligent terminal, ya kamata a tabbatar da cewa "edge (middle) circuit breaker set to maintenance" soft pressure plate na related line protection device suka zama engaged (idandansa). Idan primary equipment bai shiga rike, ya kamata a tabbatar da cewa outlet hard pressure plate na intelligent terminal suka zama withdrawn, da kuma bayan a withdraw protection reclosing function da kuma a engage forced soft pressure plate na corresponding isolation switch of the bus protection as needed, bay intelligent terminal maintenance pressure plate zai iya zama engaged.

d) Bayan an gata aiki na sako mai yawan kasa na devices kamar protection devices, merging units, da intelligent terminals, ya kamata a bincike indicators na device, human-machine interface state change messages, ko input state changes, da kuma a tabbatar da cewa related operating devices bai samu unexpected signals. Ba a yi aiki na biyu ba tun da a tabbatar da cewa aiki ya zama daidai.

Idan primary equipment ta zama da aiki da kuma relay protection system ta zama da aiki, ya kamata a yi aiki da tsari:

• Withdraw the maintenance pressure plates of the bay merging unit, protection device, and intelligent terminal

• Engage the SV soft pressure plates of this bay in related operating protection devices

• Engage the GOOSE receive soft pressure plates of this bay in related operating protection devices

• Engage the GOOSE send soft pressure plates for tripping, reclosing, failure initiation, etc. of the protection device in this bay

• Engage the outlet hard pressure plate of the intelligent terminal in this bay

Idan primary equipment ta shiga rike da kuma ya kamata a withdraw relay protection system, ya kamata a yi aiki da tsari:

• Withdraw the GOOSE receive soft pressure plates (such as failure initiation, etc.) of this bay in related operating protection devices

• Withdraw the GOOSE send soft pressure plates for tripping, closing, failure initiation, etc. in the protection device of this bay

• Withdraw the SV soft pressure plates or bay engagement soft pressure plates of this bay in related operating protection devices

• Withdraw the outlet hard pressure plate of the intelligent terminal in this bay

• Engage the maintenance pressure plates of the protection device, intelligent terminal, and merging unit in this bay