Tadace-tadace na Mafi yin Nuna a Kula da Tashar Jirgin Sifidi-6 a Ingantaccen Kuliya

1 Karkashin da Turanci na Circuit Breakers na SF₆ na Makarantun Kirkiro

Circuit breakers na SF₆ na makarantun kirkiro, wadannan suna cikin abubuwan da suka fi sani a cikin tattalin arziki, karkashinsu da turancinsu suna zama ma'ana mai ban sha'awa don inganta aiki da kyau da kalmomin jirgin arziki. Ana bude da kungiyoyin komponentai na kayayyakin, hakan ya kunshi amma ba shi ne insulatoci, kungiyoyin gagarumin arziki, gas chambers, mekanisumoci, da kuma kungiyoyin kontrola. Insulatocin suna amfani da muhimmanci aikin don tabbatar da za su iya da yake da takam da kisan kirkiro na makarantu; kungiyoyin gagarumin arziki suna gina da kayayyaki masu tsariyar arziki don tabbatar da za su iya haɗa da damar arzikin.

Gas chamber ita ce mafi girman circuit breaker. Ya amfani da abubuwan da suka samu da gas na SF₆ ta kawo da kisan kirkiro don kula da kisan kirkiro da kuma inganta tsariyar insulaci, kuma don haka ya kula da kisan kirkiro da kasa da kalmomi. Gas na SF₆, wanda ake kira sulfur hexafluoride, tsariyar insulaci da kuma kalmomin kisan kirkiro masu kyau suna zama sabbin abubuwa da take da amfani a cikin circuit breakers na makarantun kirkiro. A lokacin da arziki ya koma zuwa zero, gas na SF₆ ya kula da kisan kirkiro da kuma ci ƙarin kisan kirkiro, kuma ya tabbatar da circuit breaker ya iya kula da kisan kirkiro da kasa. Da kuma haka, gas na SF₆ yana da tsariyar hakkin da ya fi dace, wanda ya kula da za su iya kusa da kusan ruwa da abubuwan da ba a yi daidai. Wannan ya zama muhimmanci don inganta nasara da kasa a cikin circuit breaker, kuma don haka ya tabbatar da za su iya aiki da kyau da kalmomi.

A kan karkashin, circuit breakers na SF₆ na makarantun kirkiro suna da mekanisumoci da kungiyoyin kontrola masu ilimi. Waɗannan komponentai suna aiki da dama don tabbatar da circuit breaker ya iya yanke da kwallon adadin aiki na tattalin arziki. Mekanisumoci ya ɗaukar da kula da kisan kirkiro, kuma kungiyoyin kontrola suna ɗaukar da kula da kisan kontrola da kuma inganta tsariyar aikin.

2 Abubuwan Da Duk Firfiruwa a Cikin Circuit Breakers na SF₆ na Makarantun Kirkiro a Jirgin Arziki
2.1 Kusa Da Gas Na SF₆

Kusa da gas na SF₆ ita ce mafi girman abubuwan da duk firfiruwa a cikin circuit breakers na SF₆. Wannan kusa zai haɗa da kalmomin insulaci a cikin circuit breaker, kuma ya haɗa da kalmomin aiki na tsohon. Dalilai da ke faruwa wannan kusa suna kunshi lafiya da kusa da seals, ko kuma ba da shiga da kusa a lokacin da ake shiga. Kusa da gas na SF₆ ba sa kuma kula da kalmomin circuit breaker, amma zai iya haɗa da kalmomin al'adu, domin gas na SF₆ ita ce gas na greenhouse wanda ya haɗa da kalmomin global warming.

2.2 Kwalaye Mekanisumoci

Mekanisumoci ita ce mafi girman circuit breaker wanda ya ɗaukar da kula da kisan kirkiro. Idan mekanisumoci ya fito, zai iya haɗa da kalmomin aiki na circuit breaker. Waɗannan kwalaye suna kunshi energy storage na spring, kusa da hydraulic oil, kusa da compressed air a cikin system na pneumatic, da kuma abubuwan da ba su. Kwalaye mekanisumoci ba sa kuma kula da kalmomin circuit breaker, amma zai iya haɗa da kalmomin aiki na tsohon tattalin arziki.

2.3 Tsurukan Contacts

Idan circuit breaker ya yi aiki da kadan ko kuma ya yi aiki da kasa, contacts (kungiyoyin gagarumin arziki) suna iya tsuruka, wanda zai haɗa da kalmomin gagarumin arziki da kuma kula da kisan kirkiro. Idan tsurukan ya zama mafi yawa, zai iya haɗa da kalmomin heating da burning, kuma zai iya haɗa da kalmomin circuit breaker, kuma ya haɗa da kalmomin aiki na tsohon tattalin arziki.

2.4 Kwalaye Switches Na Biyan Da Kungiyoyin Protection

Switches na biyan suna amfani don kula da kalmomin circuit breaker, kuma kungiyoyin protection suna amfani don kula da kalmomin damage da ke faruwa da faults. Idan waɗannan komponentai sun fito, zai iya haɗa da kalmomin circuit breaker ya bangare da kalmomin protection na tsohon tattalin arziki, kuma ya haɗa da kalmomin aiki na tsohon tattalin arziki.

2.5 Abubuwan Da Over - voltage

Over - voltage zai iya faruwa a lokacin da circuit breaker ya kula da kisan kirkiro, kuma wannan zai iya haɗa da kalmomin damage da ke faruwa a cikin abubuwan da ke aiki. Don kula da wannan impact, an yi amfani da devices na over - voltage protection kamar arresters. Measures na over - voltage protection suna zama muhimmanci don inganta aiki da kasa da kalmomin tattalin arziki da kuma kalmomin equipment.

2.6 Aging Ko Kuma Kwalaye Komponentai Na Mechanical

A lokacin da aiki da kasa ko kuma a cikin environment da ba da kyau, komponentai na mechanical na circuit breaker suna iya aging, deform, da kuma abubuwan da ba su. Kwalaye komponentai na mechanical zai iya haɗa da kalmomin aiki na circuit breaker, kuma zai iya haɗa da kalmomin safety accidents.

3 Maintenance and Repair Measures for Common Faults of High - voltage SF₆ Circuit Breakers in Substation Maintenance
3.1 Maintenance and Repair for SF₆ Gas Leakage

Don inganta aiki da kasa a cikin equipment na SF₆ gas, ana bukata da amfani da ultrasonic leak detectors ko halogen leak detectors. Duk waɗannan suna zama tools da suka fiye don kula da kisan gas leakage. Regular inspections zai iya kula da kalmomin potential leakage points, kuma a zai iya yi measures da za su iya kula da kisan gas leakage da za su iya haɗa da kalmomin environment da kuma equipment.

A cikin maintenance na daily, status na seals suna buƙata da kula da kalmomin. Idan signs na aging ko kuma kwalaye seals an samu, an buƙata da zai iya replace immediately. A lokacin da ake replace seals, sealing process requirements da manufacturer ya bayar da su suna buƙata da ake amfani don tabbatar da new seals zai iya correct install da kuma play their proper sealing effect, kuma don haka ya tabbatar da sealing performance da kuma operation safety na equipment.

A cikin monitoring process, idan decrease a pressure na SF₆ gas an samu, wanda zai iya zama sign na gas leakage, measures zai iya kula da kalmomin replenish the gas to ensure that the equipment can maintain a normal working pressure range. A lokacin da ake replenish the gas, high - purity SF₆ gas da take da standards zai iya amfani don kula da kalmomin insulation performance na equipment da ba da kyau. Amma, a lokacin da gas - filling process, introduction na impurities zai iya kula da kalmomin control to ensure the purity of the gas, kuma don haka ya tabbatar da stable operation na equipment da kuma extend its service life.

3.2 Maintenance and Repair for Operating Mechanism Failure

Don inganta aiki da kasa a cikin operating mechanism, spring energy storage situation zai iya buƙata da kula da kalmomin regular check to ensure that the spring has sufficient energy reserves. For equipment with hydraulic operating mechanisms, oil level na hydraulic oil zai iya buƙata da kula da kalmomin careful check to see if it is at an appropriate level, and the oil quality should be evaluated to ensure that it meets the standard requirements. Once the oil level is found to be insufficient or the oil quality deteriorates, measures should be taken immediately to replenish or replace the hydraulic oil to maintain the normal operation of the system.

For equipment with pneumatic operating mechanisms, regular inspections are essential. This includes monitoring the pressure of compressed air to ensure it is within a safe and effective range, and checking the integrity of sealing components to prevent air leakage, which may lead to a decrease in equipment performance or operational failure. Through these preventive measures, the stability and reliability of the pneumatic system can be ensured.

To maintain the efficient operation of the operating mechanism, regular cleaning and lubrication of mechanical components are of great importance. Cleaning can remove accumulated dirt and impurities to prevent them from causing wear or blockage to the equipment; appropriate lubrication can reduce friction between components and reduce the risk of operational failures.

3.3 Maintenance and Repair for Contact Wear

To ensure the safe and stable operation of electrical equipment, the wear condition of contacts must be carefully checked during each maintenance. During the inspection, precise measuring tools should be used to measure the thickness of the contacts to ensure it is within the specified allowable range. Once the wear amount of the contacts is found to exceed the specified allowable range, to prevent possible failures and hazards, the worn contacts must be replaced immediately.

For contacts with only slight wear, the surface flatness can be restored through professional grinding methods. However, during the grinding operation, the depth and force of grinding must be strictly controlled to avoid excessive material loss of the contacts due to over - grinding, which may affect the normal performance and service life of the contacts. Therefore, the grinding work should be carried out by experienced technicians to ensure the accuracy and safety of the operation.

To effectively extend the service life of contacts, it is advisable to optimize the operation frequency of the circuit breaker to reduce unnecessary frequent operations. Frequent operations not only accelerate the wear of contacts but may also cause premature aging of other components of electrical equipment. Therefore, reasonably planning and adjusting the operation frequency and avoiding unnecessary operations are important measures to improve the service life of contacts and ensure the stable operation of equipment.

3.4 Maintenance and Repair for Auxiliary Switch and Protection Circuit Failure

①Inspection of Auxiliary Switches
To ensure the normal operation and safety of equipment, regular and detailed inspections of auxiliary switches are of great importance. This process includes a thorough inspection of the contact condition of the switch to ensure good contact and no looseness or corrosion. If problems such as poor contact or wear are found during the inspection, measures should be taken immediately to adjust or replace the switch to avoid possible equipment failures or safety accidents.

②Testing of Protection Circuits
The protection circuit is a key component to ensure the safe operation of electrical equipment. Therefore, regular and comprehensive testing of the protection circuit is essential. This test aims to ensure that the protection circuit operates reliably and in a timely manner, and can quickly cut off the power supply in case of abnormal situations to prevent equipment damage or personal injury. If the test results show that there are problems with the protection circuit, such as calibration deviation or component damage, calibration should be carried out immediately or the damaged components should be replaced to ensure the normal function of the circuit.

3.5 Maintenance and Repair for Over - voltage Problems

To ensure the safe and stable operation of the power system, it is recommended to install arresters near the circuit breaker. This can effectively prevent damage to the equipment caused by operating over - voltage due to lightning strikes or other reasons, thereby extending the service life of the equipment and ensuring its normal operation.

To further improve the operation efficiency and safety of the power system, it is advisable to optimize the operation mode of the circuit breaker. In particular, it should be noted that when the system voltage fluctuates greatly or the system load changes sharply, the operation of the circuit breaker should be avoided to prevent equipment failures or safety accidents caused by improper operation.

3.6 Maintenance and Repair for Aging or Damage of Mechanical Components

Comprehensive inspections should be carried out on the mechanical components of the circuit breaker, including but not limited to transmission shafts, connecting rods, bearings, etc. During the inspection, special attention should be paid to the wear degree, cracks, deformation, and other phenomena of the components. Once signs of aging or damage are found, replacement or repair should be carried out immediately to prevent the further expansion of the failure.

For key components such as transmission shafts and connecting rods, regular lubrication treatment should be carried out to reduce wear and extend the service life. At the same time, for vulnerable parts such as bearings, their operating status should be regularly checked to ensure smooth rotation and no abnormal noise or heating. When necessary, new bearings should be replaced to ensure the normal operation of mechanical components.

For the mechanical components of the circuit breaker, load tests should also be regularly carried out to simulate operations under actual working conditions to test their performance and reliability. Through these tests, potential problems can be promptly detected, and corresponding maintenance measures can be taken to ensure the stability and safety of the circuit breaker under various working conditions.

For all maintenance and repair work, detailed records should be made, including information such as the model of the replaced component, maintenance time, and operating personnel. These records have important reference value for subsequent maintenance work and fault analysis, helping to improve maintenance efficiency and the operational reliability of the circuit breaker.

3.7 Other Maintenance Measures

To ensure the stable operation of the power system, the operating temperature of the circuit breaker should be regularly checked to prevent equipment damage caused by overheating. This step is crucial for ensuring the normal operation of the equipment and extending its service life.

To maintain the normal working state of the circuit breaker, regular cleaning of its casing is essential. By removing dust accumulation on the surface and preventing corrosion and other problems, the adverse effects of these factors on the equipment performance can be effectively avoided, ensuring the safety and reliability of the power system.

With the continuous progress of technology, timely technical transformation of the circuit breaker is an effective means to improve its performance and reliability. By analyzing the operating conditions and historical data of the equipment, necessary technical upgrades can be carried out in a targeted manner to ensure that the circuit breaker can meet the requirements of modern power systems.

4 Conclusion

In the substation maintenance work of the power system, the maintenance and troubleshooting of high - voltage SF₆ circuit breakers are of great significance. Through regular inspections and appropriate maintenance measures, the occurrence of faults can be effectively prevented, ensuring the safe and stable operation of the power system. In this process, technicians should strictly follow the operation procedures, use advanced detection equipment and technologies, and continuously improve the quality and efficiency of maintenance to provide a solid guarantee for the reliable operation of the power system.