Prefabricated Electrical Substation Box 4000A Rated Current For Power Distribution
Overview
Hengfengyou offer an environmentally responsible, high efficiency,
safer choice. The units have high-fire-point fluid, providing fire
safety benefits, and a projected life well beyond that of a
traditional mineral-oil transformer. These efficient and
cost-effective transformers use Environmental friendly oil.
Envirotran transformers are manufactured in 50 - 10,000kVA, in
primary voltage classes of 11kV,15 kV, 25 kV and 35 kV.
capacity kVA 50-20,000
Primary Voltage Up to 34,500 V
Secondary Voltage 208-14,400 V
Application
Three-phase, pad-mounted transformers, for use on underground power
distribution systems, are best suited for commercial applications
in public access areas and where underground service is required.
These transformers meet modern design requirements for flexibility
and provide a visually pleasing installation. Construction allows
installation in locations accessible to the general public without
the need for protective fencing or vaults. These units are ideally
suited for apartment buildings, schools, hospitals, shopping
centers, commercial buildings, or industrial sites.
Service condition
-Sealed tank construction
-Special waste disposal considerations
-Insulation temperature limit: 120 °C
-Temperature rise: 65 °C (standard); 55 °C or 55/65 °C (optional)
Special Design Options
-Special sound requirements
-Special altitude requirements
-Retrofit designs
-Highe efficiency requirements
-Special ambient conditions
Applicable Standards
-IEEE C57.12.00—Standard General Requirements for Liquid-Immersed
Distribution, Power, and Regulating Transformers
-IEEE C57.12.34—Requirements for Pad-Mounted, Compartmental-Type,
Self-Cooled, Three-Phase Distribution Transformers, 2,500 kVA and
Smaller: High Voltage, 34,500 GrdY/ 19,920 V and Below; Low
Voltage, 480 V and Below
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.
