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American box type substation

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Performance and characteristics: ZGS series combined transformer, namely American box type substation, is the series product developed according to the need of development and renovation of the urban and rural power grid. It combines the transformer body, switchgear equipment, fuse, tap changer and low voltage distribution device, etc, which can meet various configuration requirement, such as electric power measuring reactive power compensation and low voltage branching., etc. ZGS combined transformer, as the independent complete power distribution device in 50 Hz, 6~10kV, 63~1600kVA power grid, not only can be used in outdoors, but also indoors. It is widely used in industrial park, urban residential district, business center, high-rise building and temporary construction site, etc. it has the characteristics like small volume covering small area, easy to place, and easy to simulate for harmonizing with the district environment. It can shorten the length of LV cable to reduce line loss, and also reduce the cost of matched equipment for power supply. Technical parame

Product type Voltage combination Connection symbol NO load loss(W) Load loss(W) No load current(%) Short-circuit impedance(%) Outline dimension(mm)
HV LV Length Width Height
ZGS11-H-100/10 6 63.3±5﹪ 10±2.5﹪ ? 10.5 11 0.4 Yyn0 Dyn11 200 1500 2.1/2.3 4.0 1830 1355 1735
ZGS11-H-125/10 240 1800 2.0/2.2 1830 1365 1735
ZGS11-H-160/10 270 2200 1.9/2.1 1830 1375 1735
ZGS11-H-200/10 330 1600 1.8/2.0 1830 1375 1735
ZGS11-H-250/10 400 3050 1.7/1.9 1830 1405 1735
ZGS11-H-315/10 480 3650 1.6/1.8 1830 1425 1735
ZGS11-H-400/10 570 4300 1.5/1.7 1830 1435 1805
ZGS11-H-500/10 680 5150 1.4/1.6 1830 1445 1860
ZGS11-H-630/10 810 6200 1.3/1.5 1830 1455 1860
ZGS11-H-800/10 980 7500 1.2/1.4 1830 1490 1860
ZGS11-H-1000/10 1150 10300 1.1/1.3 1830 1675 2005
ZGS11-H-1250/10 1360 12000 1.0/1.2 2100 1845 2035
ZGS11-H-1600/10 1640 14500 0.9/1.1

(1)Photovoltaic power generation combined transformer( American type)

Photovoltaic power generation, as one kind of clean energy production, is widely developed at home and abroad. For meeting the growing photovoltaic power generation, based on 35kV combined transformer produced before, ZGS-ZG series combined transformer is developed by ourselves through adopting the advanced technology at home and abroad and considering domestic demand. This product integrates the transformer active part, load switch, HV fuse within the transformer tank, making the transformer oil as the insulation and heat dissipation medium. Oil tank is full sealing construction with the characteristics of small volume, light weight and convenient installation, etc. photovoltaic power generation combined transformer is divided as two-winding type and axial direction double-split type. The latter type adopts the winding project of segmentation winding and taking copper foil for LV winding, can make two LV branches run separately or simultaneously or in parallel, and get widely used in photovoltaic power generation.

construction characteristics of product:

1)ZGS-ZG series photovoltaic power generation combined transformer is made up of HV compartment, transformer main body and LV compartment, arranged as alignment or “L” shape. HV live parts and HV cable is divided by individual compartment, and complete with electromagnetic lock device, easy for installation and maintenance;
2)HV load switch adopts two operating position oil-immersed load switch, 12kV product adopts pull-out fuse plus backup protection, and HV components and transformer active part stay in the same tank.
3)Transformer main body adopts non-segregated construction, HV and LV bushing adopt side outlet, easily connecting with HV and LV electric parts directly, and pull-out fuse is placed on upside of active part, effectively reducing installation space. Radiators are installed on the two sides of transformer main body, having good heat dissipation effect, whose installation type is open or enclosed type;
4)This product is LV double-split transformer that adopts axial direction double-spilt, which not only restricts the short circuit current, but also cuts down the investment for infrastructure. The two LV branches can run separately or simultaneously or in parallel;
5)This product has no leakage, having passing 50kPa/12 hours seal test to ensure no leakage for tank.
6)Equipment enclosure adopts the rigid painting workmanship, and is painted with ultraviolet-proof finish paint which has the strong performance of weather proof in outdoors and can meet the anticorrosion requirement in the area of high altitude, heavy salt fog, etc.
7)Transformer radiator directly connects with the outside air, having good heat dissipation effect.

Operation environment:
1)Altitude≤2000m;
2)Ambient temperature: highest temperature +42℃, lowest temperature -40℃
3)Humidity:day average relative humidity is not more than 95%; month average relative humidity is not more than 90 ℃;
4)Wind speed:outdoor wind speed is not more than 45m/s2;
5)Anti-seismic: horizontal acceleration is not more than 0.4m/s2l;
6)Gradient in installation site: not more than 3°
7)Installation ambient: ambient air is not polluted by corrosion and inflammable gas, and there is no strenuous vibration;
8)When the above environment requirement is exceed during purchasing, to consult with us is available.

(2)Combination type transformer use for wind power generation(American box-type substation)

product description

The product is the combination of step-up transformer active part, switchgear, fuse, tap changer and relevant auxiliary equipment, because that switchgear and fuse are placed in tank, dimension is small and structure is similar with box-type substation imported from America, so it is called American Box-type Substation Use For Wind Power Generation by intra-industry people. It is divided into two type: one is uniform insulation segregated type product and the other is non-segregated type product whose HV outlet adopts dry type bushing

Product structure characteristic

1)Uniform insulation segregated combination type transformer, whose 12KV and 40.5KV side outgoing line adopt uniform insulation cable prefabricated contacts and contactable plug-in type arrester, making no HV live parts exposed for the total product, high protection level and safety and reliable.
2)In addition to above mentioned characteristic, transformer and HV components are also placed in two independent box, so that oil pollution problem is solved and separated repair for HV components and transformer can be done.
3)12KV product is protected by plug-type fuse and backup protection while 40.5KV product is protected by plug-type fuse full range protection fuse.
4)Each box body should be performed full sealing test for 50kPa/12 hours, and leakage will not occur.
5)Non-segregated combination type transformer, whose HV outgoing line adopts dry type bushing and connection is convenient, can realize that more incoming and outgoing line circuit for HV and low cost.
6)Equipment enclosure is painted with ultraviolet-proof finishing coat by using strict painting workmanship, which makes outdoor weather fastness performance be strong.
7)Because that transformer has no independent enclosure, heat dissipation is very good.

operation condition
1)altitude:≤ 2000m;
2)environment temperature:max : +42℃,mini: -40℃
3) humidity:daily average relative humidity is not more than 95%;monthly average relative humidity is not more than 90%;
4) wind speed:outdoor wind speed is not more than 45m/s ;
5) shockproof:0.4m/s2 horizontal acceleration is not more than 0.4m/s2;
6) gradient for installation site: not more than 3°;
7) installation environment:ambient environment is not polluted by corrosive and combustible gas, installation site is not suffered strenuous vibration
8)When the above environment requirement is exceed during purchasing, to consult with us is available.
(3) American box-type substation
1)The product structure is divided into alignment arrangement and triangle arrangement, the former, whose HV compartment is more wide, can perform ring network power supply or dual power supply connection; the latter, LV compartment is more wide, can accommodate 5~6 units LV cabinets. Inner operation corridor can be designed as per your requirement.
2)Box body frame is made of welding box iron and angle iron, which has higher mechanical strength. Enclosure material kinds for Box body has 2m m aluminium alloy plate, new type anticorrosion color steel composite plate, stainless steel plate, multi-purpose plant fiber reinforced cement across press plate, glass fiber, specialty fiber and specialty cement plate, etc to choose for you, whose corrosion ability is very good. It can be performed surface colouration to match with ambient environment.
3)The product has good thermal insulating and venting measures. The thermal insulating layer, made up of 50mm new type flame-resistant material, is placed between the interlay of tank cover and can prevent sun solar radiation effectively. The automatic control axial flow fans are placed on the top and below the bottom of transformer compartment, ensuring transformer run with full load in high temperature season.
4)The door lock out of box, adopts the weatherproof, anti-blocking and anti-corrosive special door lock, which can be fixed in the open position after the door opened.
5)The outer door frame is equipped with the special rubber shim, and the bottom cable inlet hole is equipped with tower-ship rubber ring, all of which can be weatherproof, dustproof and stop small animals, ensuring electric equipment run well.
6)Rail or wheels can be set in transformer department, easy for transformer installation and exchange.
7)There is two doors in transformer department, inner-mesh door adopts open type, metal mesh adopts stainless steel mesh with mesh hole diameter ≤ 8mm, ensuring patrol staff safe.
8)
HV incoming line project is divided into cable below incoming and overhead incoming, LV outgoing line is usual cable below outgoing. The American box type substation has following illustrative figures:
Alignment arrangement enclosure

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