Sistem na ƙarfin karamin kashi da Kiyasin Ƙarfi na IEE-Business
Akawar da manyan electrical bus system na iya da su, amma zabi wani tushen da ya danganta ne ya gina da tsari voltage, yadda substation ke cikin electrical power system, hanyoyin da ke bukata a cikin tsari da kuma adadin da za a fi sani.
Muhimmanci na da Hakan Yake Da Mu Iya Bincika Wannan Tsarin Bus – Bar Arrangement
Hanyoyin da ke tsari.
Yakin da ake yi a matsayin abubuwan da ake biye.
Kashe da ci gaba a lokacin da ake biye.
Babban da ake bukata a kan yadda za a duba a nan da kuma yadda za a duba a nan.
Yakin da ake buƙata wani babban tushen bus bar arrangement scheme don in ba shi da maƙasuwa mafi girma daga tsari.
Wadannan suna da manyan tushen bus bar arrangement masu amfani da su ga wasu bayanai a nan-
Single Bus System
Single Bus System shine mafi tsari da mafi kyau. A wannan tushen yana da duka feeders da kuma transformer bay suka shiga wani single bus kamar yadda aka nuna.
Abubuwan da Single Bus System Ke Jira
Wannan shine mafi tsari a cikin design.
Wannan shine mafi kyau a cikin abubuwan da ake buƙata.
Wannan shine mafi nasara a cikin yadda ake amfani da shi.
Mahimmanci na da Single Bus System
Wani abu mai mahimmanci a cikin wannan tushen shine, yakin da ake biye waɗannan abubuwan da ke bay ba zai iya faruwa baya ba tare da in kunna feeders ko transformer da ke shiga bay.
Indoor 11 KV switch boards suka da Single Bus Bar Arrangement a gaba-gaban lokaci.
Single Bus System with Bus Sectionalizer
Za a samun abubuwan da suka da su idan an sectionalize wani single bus bar da circuit breaker. Idan akwai incoming da outgoing feeders da suka da su, za a iya haifar da interruption a cikin system.
Abubuwan da Single Bus System with Bus Sectionalizer Ke Jira
Idan wanda ba a cikin system ba, duk loads zai iya samun energy da kuma sectional circuit breaker ko bus coupler breaker. Idan wata section ta bus bar system ke biye, part load of the substation zai iya samun energy da kuma wata section ta bus bar.
Mahimmanci na da Single Bus System with Bus Sectionalizer
Duk da cewa wani single bus system, yakin da ake biye waɗannan abubuwan da ke bay ba zai iya faruwa baya ba tare da in kunna feeders ko transformer da ke shiga bay.
Amfani da isolator don bus sectionalizing ba zai tabbatar da muhimmanci. isolators zai iya amfani 'off circuit' wanda ba zai iya faruwa baya ba tare da total interruption of bus-bar. Saboda haka, za a buƙata bus-coupler breaker.
Double Bus System
A double bus bar system ana amfani da wata uku bus bars da suka da su idan an iya shiga incoming ko outgoing feeders da su.
Saboda haka har feeder ana shiga buses da su a bangaren isolator kamar yadda aka nuna a figure.
Idan an kasa wani isolator, zai iya shiga feeder zuwa bus. Duk buses ana samun energy, da kuma feeders ana divide a biyu groups, wata group ana samun energy daga wata bus, wata group ana samun energy daga wata bus. Amma har feeder a wata lokaci zai iya transfer from one bus to other. Akwai wata bus coupler breaker wanda ya zama close during bus transfer operation. For transfer operation, one should first close the bus coupler circuit breaker then close the isolator associated with the bus to where the feeder would be transferred and then open the isolator associated with the bus from where the feeder is transferred. Lastly, after this transfer operation, he or she should open the bus coupler breaker.
Abubuwan da Double Bus System Ke Jira
Double Bus Bar Arrangement increases the flexibility of system.
Mahimmanci na da Double Bus System
Wannan tushen ba zai iya faruwa breaker without interruption.
Double Breaker Bus System
A double breaker bus bar system ana amfani da wata uku bus bars da suka da su idan an iya shiga incoming ko outgoing feeders da su. Kadan farko shine, har feeder ana shiga buses da su a bangaren breaker, ba isolator ba. Idan an kasa wani breaker da kuma isolator, zai iya shiga feeder zuwa respective bus. Duk buses ana samun energy, da kuma feeders ana divide a biyu groups, wata group ana samun energy daga wata bus, wata group ana samun energy daga wata bus. Amma har feeder a wata lokaci zai iya transfer from one bus to other. Ba zan iya buƙata bus coupler saboda an yi operation by breakers instead of isolators. For transfer operation, one should first close the isolators and then the breaker associated with the bus to where the feeder would be transferred, and then he or she opens the breaker and then isolators associated with the bus from where the feeder is transferred.
One and A Half Breaker Bus System
Wannan shine improvement on the double breaker scheme to effect saving in the number of circuit breakers. For every two circuits, only one spare breaker is provided. The protection is however complicated since it must associate the central breaker with the feeder whose own breaker is taken out for maintenance. For the reasons given under double breaker scheme and because of the prohibitory costs of equipment, even this scheme is not much popular. As shown in the figure that it is a simple design, two feeders are fed from two different buses through their associated breakers, and these two feeders are coupled by a third breaker which is called tiebreaker. Normally all the three breakers are closed, and power is fed to both the circuits from two buses which are operated in parallel. The tiebreaker acts as a coupler for the two feeder circuits. During the failure of any feeder breaker, the power is fed through the breaker of the second feeder and tiebreaker, therefore each feeder breaker has to be rated to feed both the feeders, coupled by the tiebreaker.
Abubuwan da One and A Half Breaker Bus System Ke Jira
During any fault on any one of the buses, that faulty bus will be cleared instantly without interrupting any feeders in the system since all feeders will continue to feed from other healthy bus.
Mahimmanci na da One and a Half Breaker Bus System
This scheme is much expensive due to investment for third breaker.
Main and Transfer Bus System
