Zabi na Kabinetar da Duk Daidai don Makofin Sashen Kuliya

【Abstract】 A cikin abubuwa na urbanization, gwamnatin karamin gida shi ne mafi yawan tashar zabe da kuma muhimman tashar energy. Don haka, ya kamata a zaba da jin daidai da marubuta daidai masu karamin karamin high da low voltage distribution cabinets a cikin distribution rooms. Wannan yana taimakawa wajen tabbatar da dalilin rayuwa da inganci a cikin samun karamin karamin gida. Kuma wannan yana ba da taimaki don in bincike daidai da marubuta daidai masu karamin karamin gida ta hanyar zaɓe daidai. Kuma ya kamata a bayyana abubuwan daidai da tsohon abubuwan da ke da muhimmanci don in zaba da kayan aiki da ma'ana a cikin manyan abubuwan da ke da suka samu. Idan an yi a cikin yanayin rubutu mai kyau, abubuwan da ake zaba suna da kyau a yi aiki da ma'ana, kuma suke da muhimmanci ga tushen karkashin energy, tsari da kuma kawo karfi.

【Keywords】 Distribution room; High da low voltage distribution cabinets; Zaɓe daidai

1. Tushen Rubutu

Wadanda samun al'umma da karkashin arziki ya faru da kudin, karamin gida ya zama daya daga cikin muhimman tashar energy a al'adu mai zurfi, kuma ya taimaka wajen bukatar urbanization. Don in iya amfani da karamin gida a cikin hukuma, ya kamata a fadada dalilin rayuwa da inganci a cikin gwamnatin karamin gida. A cikin zaɓe daidai masu karamin karamin high da low voltage distribution cabinets, ya kamata a fadada halin daidai da marubuta daidai masu abubuwan da ke da muhimmanci don in tabbatar da dalilin rayuwa da inganci a cikin samun karamin karamin gida.

2. Zaɓe daidai masu karamin karamin high da low voltage distribution cabinets a cikin distribution rooms

2.1 Zaɓe daidai masu karamin high voltage distribution cabinets

A cikin zaɓe daidai masu karamin high voltage distribution cabinets, ya kamata a yi da damar daidai, kuma a duba manyan abubuwan. Waɗannan sun hada da:

(1) Dalilin Rayuwa

A cikin zaɓe daidai masu karamin high voltage distribution cabinets, ya kamata a duba yanayin rubutu mai kyau, kuma a duba abubuwan da ke da muhimmanci. Ya kamata a duba halin daidai masu karamin high voltage supporting equipment, kuma a tabbatar da dalilin rayuwa a cikin samun karamin karamin gida. Saboda waɗannan withdrawable components a cikin withdrawable cabinets ana iya a kan carts da ke da kyau, kuma wannan yana iya a yi har zuwa idan main circuit ya kasance, ya kamata a zaba da kayan aiki da ma'ana, kuma suke da muhimmanci ga karkashin kawo karfi. Amma, amfani da withdrawable cabinets yana ba da muhimman tashar don civil ground construction. Don in taimaka matsayin carts a nan a nan switchgear, top surface da ke a nan internal rails ya kamata a ci level da consistent da external floor, kuma ake iya koyar da insulation rubber mats don in kara karkashin vibration. Daga baya, medium-voltage withdrawable cabinets sun fi sani da withdrawable cabinets. Idan withdrawable components ana iya a kan carts a nan cabinet, ya kamata a amfani da specialized transport vehicles, kuma ake iya koyar da height da ke a nan base da ke a nan vehicle. Saboda fixed high voltage distribution cabinets da ake amfani da su a nan zaman babban, misali GG-1A, duk component suna iya a kan cabinet. Idan component ce ya kasance, ya kamata a koyar da power down da entire cabinet don in yi maintenance, wanda ya tala tsari da kuma kawo karfi. Saboda haka, a cikin zaɓe daidai masu karamin high voltage distribution cabinets, ya kamata a duba yanayin daidai, kuma a zaba da kayan aiki da ma'ana.

(2) Tsari

A cikin gwamnatin karamin karamin gida, kawo karfi ta hanyar maintenance yana zama alamar daidai masu karamin technical indicators da ke a nan various distribution cabinets, kuma yana zama yanayin research don in bincike daidai. Yanzu, secondary circuits da ake amfani da su a nan commonly used high voltage distribution cabinets ana iya a kan relay protection and control systems. Saboda factors kamar operational reliability of relay coils, contact lifespan, da kuma signal detection sensors, failure rate da ke a nan traditional relay protection systems yana fi kowane, kuma process da ke a nan operation yana fi kowane, wanda ya tala costs da ke a nan maintenance. A shekarun da suka, saboda intelligent comprehensive protector models sun fi sani da computer-intelligently controlled distribution cabinets, suna zama choice da ke a nan configuration projects. Idan initial investment yana fi kowane, amma use of built-in intelligent comprehensive protectors yana taimaka wajen bincike daidai masu karamin high voltage cabinets. Kuma components da ke a nan cabinet suna fi kowane, kuma suke da muhimmanci ga karkashin kawo karfi. Saboda haka, a cikin zaɓe daidai masu karamin high voltage cabinets, ya kamata a duba yanayin daidai, kuma a zaba da intelligent comprehensive protector models da ke da tsari da kuma kawo karfi.

(3) Yanayin Daidai

Yanzu, high voltage distribution cabinets suna da domestic da imported products. Domestic high voltage distribution cabinets suna da price mai kyau, performance da ke da kyau, da kuma kawo karfi. Amma, suke da size mai yawa, kuma suke da space mai yawa. Saboda haka, idan distribution room yana da space mai yawa, ya kamata a duba size da ke a nan distribution cabinet a cikin zaɓe. Idan budget yana da kyau, ya kamata a zaba da imported compact products, kuma suke da muhimmanci ga karkashin construction da kuma kawo karfi. Imported high voltage distribution cabinets suna da price mai yawa, amma performance da ke da kyau, da kuma size mai kyau. Components da ke a nan cabinet suna da arrangement mai kyau, amma maintenance yana fi kowane. Saboda haka, a cikin zaɓe daidai masu karamin high voltage distribution cabinets, ya kamata a duba yanayin daidai, kuma a zaba da kayan aiki da ma'ana. Kuma a cikin zaɓe daidai masu karamin high voltage distribution cabinets, ya kamata a duba number of input power branches and load branches based on the nature of the load.

2.2 Zaɓe daidai masu karamin low voltage distribution cabinets

(1) A cikin zaɓe daidai masu karamin low voltage distribution cabinets, ya kamata a duba technical parameters, kuma a zaba da kayan aiki da ma'ana based on predetermined parameters. Ya kamata a duba spatial area da installation location, da kuma reserved space for the low voltage distribution cabinets. Aka bi da analysis daidai masu data da ke a nan current and main busbar peak current da ke a nan peak power supply periods. Kuma a cikin zaɓe, ya kamata a duba maximum rated current, functional unit form, da kuma enclosure protection level of the distribution cabinets.

(2) A cikin zaɓe daidai masu karamin low voltage distribution cabinets, ya kamata a duba functional requirements of components. Based on actual conditions, ya kamata a duba factors kamar installation methods, functional modules, ease of maintenance, da kuma operating environment temperature. Ya kamata a duba selection of circuit breakers to ensure the main busbar has functions such as grounding protection, memory, and three-stage protection with early warning. Additionally, low voltage distribution cabinets should support selective interlocking in specific areas, possess interlocking operation functions at different levels, and enable modular operation of various functional accessories.

2.3 Considerations for Protection Functions of Distribution Cabinets

Distribution cabinets must adapt to different usage environments in the power system and have effective automatic protection functions. Generally, high and low voltage distribution cabinets use fuses as protective components. If the current exceeds the set value, the fuse heats up and melts the fusible element, disconnecting the circuit to protect it from damage caused by overcurrent. Distribution cabinets primarily protected by fuses and valve-type surge arresters are relatively low-cost in the market. However, since fuses have low sensitivity to overload protection and are mainly used as short-circuit protection components in circuits, such cabinets are only suitable for use under conditions of stable loads and good power quality. For scenarios with large and complex loads, distribution cabinets with high and low voltage circuit breakers as protective components must be considered to ensure the safety of the power distribution system. When optimizing protective components for distribution cabinets, both cost and safety performance should be key considerations. In terms of cost, protective components such as fuses and valve-type surge arresters are inexpensive and require lower initial investment but offer incomplete protection. The addition of circuit breakers, especially modern vacuum circuit breakers or sulfur hexafluoride circuit breakers, which can handle higher overload conditions and have high overcurrent sensitivity, can address faults such as overloads and short circuits. Although these are more expensive, they provide comprehensive protection. Therefore, based on the overall project budget, high and low voltage distribution cabinets with circuit breakers as protective components should be selected whenever funds allow.

3. Conclusion

In the optimal selection of high and low voltage distribution cabinets for distribution rooms, it is essential to first gain a detailed and in-depth understanding of the comprehensive performance and parameters of various equipment models. Then, based on actual conditions, suitable distribution cabinets should be selected to ensure operational reliability, economic applicability, and simplified maintenance. In summary, the selection principles should align with the requirements of being scientific, rational, economical, user-friendly, easy to maintain, and having good performance. This effectively guarantees the reliability, safety, and efficiency of distribution room operations, ensuring the normal functioning of the power system.