Prefabricated Electrical Substation Box 4000A Rated Current For Power Distribution
Overview
European type secondary substation integrates 6~10 kV medium voltage switchgears, 6~10 kV/0.4 kV, 1250k V A secondary transformer and low-voltage switchgears into a prefabricated housing. YB-12/0.4 prefabricated substation could be used in power distribution system of both ring main type and radial type grid power supply system. It is applicable in construction sites, factories, mines, oil fields, residential quarters, commercial centers, high-rise buildings, streets and other places.
We have YB-12/0.4-400KVA;YB-12/0.4-500KVA;YB-12/0.4-630KVA
Product Features
Less Space Occupation
Only 1/5~1/4 of space occupation compared to the traditional substation with the same capacity.
Lower Cost
Less cost in construction and both of high voltage and low voltage cabinets, only 1/3~1/2 of the cost of the substation with the same capacity.
Higher quality of power supply
S11/S13 fully sealed oil-immersed power transformer or S C B9 dry type power transformer could be used in this type of substation, thus the no load loss and the noise are lower. Because the substation volume is smaller, it can be mounted near the load center, thus the line loss is decreased, the power supply quality is guaranteed.
Less maintenance
As high as IP43 of the protection level, assuring the functions of anti-dust, anti-rain, small animal resistance and anti-misoperation, leading to higher level of power supply security and reliability; compact internal components, automatic monitoring function is complete, maintenance workload is relatively reduced.
Easy to install and reliable running
Under the condition of prefabrication, after the overall hoisting and fastening the anchors, it can be wired, commissioned, and starting running.
Advantages
Reduced electrical losses as USS can be installed near load centres.
Total economy in cost.
Higher degree of safety and operational reliability is achieved by HT and LT switchgears and protective relays to avoid overloading.
Reduction in logistic cost as USS is delivered as a single unit.
Low civil / foundation cost.
Parameters
Rated
power
(KVA) | High
Voltage
(KV) | H.VTap
range | Low
Voltage
(kV) | Connection
Symbol | Short-Circuit
Impedance
(%) | No-load
Loss
(W) | On-Load
LoSS
(W) | No-load
Current
(%6) | Insulation
Class |
SC(B)
9 | SC(B)
10 | SC
(B) | SC
(B)
10 |
| 30 | 6
6.3
10
10.5
11 | +5%
OR
+2x2.5% | 0.4 | Yyn0
Dyn11 | 4 | 220 | 190 | 750 | 710 | 2.3 | F |
| 50 | 310 | 270 | 1060 | 1000 | 2.2 |
| 80 | 420 | 370 | 1460 | 1380 | 1.7 |
| 100 | 450 | 400 | 1670 | 1570 | 1.7 |
| 125 | 530 | 470 | 1960 | 1850 | 1.5 |
| 160 | 610 | 540| | 2250 | 2130 | 1.5 |
| 200 | 700 | 620 | 2680 | 2530 | 1.3 |
| 250 | 810 | 720 | 2920 | 2760 | 1.3 |
| 315 | 990 | 880 | 3670 | 3470 | 1.1 |
| 400 | 1100 | 980 | 4220 | 3990 | 1.1 |
| 500 | 1310 | 1160| | 5170| | 4880 | 1.1 |
| 630 | 1510 | 1340 | 6220 | 5880 | 0.9 |
| 630 | 6 | 1460 | 1300| | 6310 | 5960 | 0.9 |
| 800 | 1710 | 1520| | 7360 | 6960 | 0.9 |
| 1000 | 1990 | 1770 | 8610 | 8130 | 0.9 |
| 1250 | 2350 | 2090 | 10260 | 9690 | 0.9 |
| 1600 | 2760 | 2450 | 12400 | 11730 | 0.9 |
| 2000 | 3400 | 3050 | 15300 | 14450 | 0.7 |
| 2500 | 4000 | 3600 | 18180 | 17170 | 0.7 |
Product composition
NITIZED SUB STATION CONFIGURATION COMPONENTS
HV Compartment
Extendible & Non Extensible MV Switchgear – Ring Main Unit (RMU)
Vacuum / SF6 Circuit Breaker, RMU & HV Fuse.
RMU & Load Break Switch.
Protection & Metering Devices.
Current & Potential Transformer for Metering / Protection.
Transformer Compartment
Oil Immersed Transformer /
Dry Type Transformer (VPI)
LV Compartment
LV Distribution Board
LT Control Panel with Incomer ACB & Outgoing MCCB
APFC Panel
LV Switch fuse unit
Instrumentation and Metering
Illumination
Internal Lightning & Door Limit Switches, Tailor made enclosures mounted on the transformer under base to provide single lift complete
installation with theft proof design.
Applications
USS (Unitized Sub Stations) / Package Sub Station are ideally suited for new residential and commercial complexes as it can be placed on Ground, partially or totally below / above ground level. Mainly used by Power Utilities, Multiplexes, Hotels, Hospitals, Shopping Malls, Software Parks, Residential Complex, Airport etc.
Service Centre
The shell of the box is made of aluminum-coated zinc steel plate and container manufacturing technology, and the design is beautiful. On the premise of ensuring the reliability of power supply, the shell color of the box-type substation is selected, so that it is easy to be in harmony with the surrounding environment Especially suitable for urban construction.
Such as: Urban residential areas, stations, ports, airports, parks, green belt and other densely populated areas, it can be used as a fixed substation, can also be used as a mobile substation, with decorative and beautifying the environment.
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