2024-03-26
500 kva compact substation also can be called 500 kva mini substation. As its name, the 500 kva mini substation has a compact structure design, which has high voltage control unit, low voltage control unit, and transformer unit to tightly connect by copper busbar or cables, that is convenient to install and test.
Conso Electrical Science and Technology Co., Ltd is one of the most professional manufacturer to produce 10 kv to 35 kv compact substation, distribution transformer and vacuum circuit breaker. Conso Electrical has accumulated experience of quality management from transactions of clients since 2006.
What is the purpose of the 500 kva compact substation?
A 500 kva mini substation equips controlling and protecting unit on both primary and secondary voltage side. The purpose of a 500 kva compact substation is to distribute electricity in three phase AC power grid.
A 500 kva compact substation is a miniaturized electrical facility, which has a competitive advantage on testing and installing to electricity users, who need more free space on the limited land usage, such as central business district, and shopping mall.
However, the structure of a 500 kva pad mounted transformer is more reasonable than a 500 kva compact substation on designing, as the 500 kva pad mounted is more convenient to ship.
What is the difference between a 500 kva distribution transformer and a 500 kva compact substation?
Both of 500 kva distribution transformers and 500 kva compact substations play an important role in electricity transmission and distribution. However, a 500 kva compact substation is a comprehensive solution to industrial, residential and commercial electricity demands.
Obviously, a 500 kva compact substation is a facility combined controlling and protecting unit with a 500 kva distribution transformer. Ever more, users could add some extra functions on a 500 kva compact substation such as global positioning, electricity data uploading, and etc.
However, a 500 kva distribution transformer could support multiple options. It could be mounted on electricity poles with low voltage switchgear, surge arrester, cutout fuse and insulators, or installed in a distribution room with high and low voltage panels.
What is the main components in a 500 kva compact substation?
Normally, a 500 kva compact substation equips a 500 kva distribution transformer, primary and secondary voltage control panel, compensation cabinet, DTU panel, and DC panel. The following is the function of each equipment:
A 500 kva distribution transformer: step down or step up voltage from the primary side to the secondary side.
Control panel: distributing electricity through circuit breakers, metering electricity consumption, supporting AC control power, and supporting necessary protection, such as under voltage protection, earthing protection, and over current protection.
Compensation cabinet: increasing available electricity to the 500 kva distribution transformer, reducing the workload to the 500 kva distribution transformer, saving electricity to the terminal user.
DTU panel: monitoring electricity quality, transferring electricity characteristic to data center.
DC panel: supporting direct current power.
What cable is required for a 500 kva compact substation?
Normally, the high voltage switchgear will connect to the distribution transformer through input cables in a 500 kva compact substation. The bellowing table shows the rated current of cables in different working environment:
Mode | YJV, YJLV, YJY, YJLY, YJV22, YJLV22, YJV23, YJLV23, YJV32, YJLV32, YJV33, YJLV33 | YJV, YJLV, YJY, YJLY | |||||||||||
Cores number | Three core | Single core | |||||||||||
Laying | In air | In earth | In air | In earth | |||||||||
Arrangement method of single core |
|
|
Horizontal | Layered | Horizontal | Layered | |||||||
Conductor material | Rated Current (A) | ||||||||||||
Cu | Al | Cu | Al | Cu | Al | Cu | Al | Cu | Al | Cu | Al | ||
Nominal cross-section (mm2) | 25 | 120 | 90 | 125 | 100 | 140 | 110 | 165 | 130 | 150 | 115 | 160 | 120 |
35 | 140 | 110 | 155 | 120 | 170 | 135 | 205 | 155 | 180 | 135 | 190 | 145 | |
50 | 165 | 130 | 180 | 140 | 205 | 160 | 245 | 190 | 215 | 160 | 225 | 175 | |
70 | 210 | 165 | 220 | 170 | 260 | 200 | 305 | 235 | 265 | 200 | 275 | 215 | |
95 | 255 | 200 | 265 | 210 | 315 | 240 | 370 | 290 | 315 | 240 | 330 | 255 | |
120 | 290 | 225 | 300 | 235 | 360 | 280 | 430 | 335 | 360 | 270 | 375 | 290 | |
150 | 330 | 225 | 340 | 260 | 410 | 320 | 490 | 380 | 405 | 305 | 425 | 330 | |
185 | 375 | 295 | 380 | 300 | 470 | 365 | 560 | 435 | 455 | 345 | 480 | 370 |
Take the YB22-10/0.4-S11-500 compact substation as an example, the YJV22-8.7/15-1*35 shall be used as the input cable in the 500 kva compact substation.
How to choose copper busbar for a 500 kva compact substation?
Normally, the low voltage switchgear will connect to the distribution transformer through copper busbar. In a 500 kva compact substation, the engineers of Conso Electrical will take TMY-3*60*6 as the main busbar, and TMY-1*40*4 as natural busbar and PE busbar.
A 500 kva compact substation for sale.
Normally, a 500 kva compact substation would cost about $15000~$25000 on manufacturing. The costs is waving because a 500 kva mini substation is designed according to the electricity demands from clients, such as the metering unit is alternative on primary side or secondary side. In this case, Conso Electrical will not keep storage of compact substations, which means each compact substation sold is brand new in Conso Electrical.
Conso Electrical is one of the original manufacturer to produce 10 kv to 35 kv distribution transformer, compact substation, vacuum circuit breaker in Central industry park of Yueqing, Zhejiang province, China. The factory strictly executes the standard of ISO 9001, ISO 14001, and ISO 45001 since 2006.
Each components of a 500 compact substation will be inquired. Until those components are combined to a 500 compact substation, a series of factory test will run to the 500 kva distribution transformer, primary voltage panel, and secondary voltage panel. Meanwhile, the structure of substation shell will have an extra inquiry by the specialized engineer.
Conso Electrical has the abundant experience to manufacture and supply 10 kv to 35 kv distribution transformer and compact substation to oversea clients. The company aims to develop a stable relationship with clients.