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Step Down Power Distribution transformer
Step down Power Distribution transformer Description
Step down Power Distribution transformer convert high voltage power to a low voltage. This makes the power level suitable to the requirements of each device connected to the power systems at household or business locations. Power circuits for homes carry 230V -110V, but some features require as little as 16V. So step-down transformers are needed to reduce the voltage to the lower power level.
Additionally, separate circuits in electrical systems within homes and businesses usually share the same frequency. But often, the voltage needs differ. Therefore, smaller step-up or step-down transformers are included in the design of many household appliances.Step-up and step-down transformers can be either single-phase or three-phase transformers, depending on the type of power supply used. Step-up and Step-down transformers serve different purposes and are designed in many configurations, depending upon the needs of each specific situation.
Pad-mounted transformer
|
Power Rating |
45kVA~6000kVA |
|
Primary Voltage Ratings |
up to 35kV |
|
Secondary Voltage Ratings |
up to 24.94kV |
|
H.V. Tap Range |
±2×2.5% or others |
|
Connection Type |
Delta/Wye |
|
Winding Conductor |
Copper or Aluminum |
|
TYPE |
Loop feed / Radial feed |
|
Configuration |
Live front / dead front |
|
BIL |
30-150kV |
|
Standards |
ANSI, IEEE, DOE, CSA, NEMA, UL |
|
Application |
Residential Areas, Hotels, Single Family Houses, Parks, Distribution Systems |
|
Oil Type |
Mineral Oil or Biodegradable Natural Vegetable Oil, Non PCB Fluid |
|
Finish Color |
Bell Green |
|
Enclosure Rating |
NEMA 3R Weatherproof Wiring Cabinet, Sealed Tank |
Pole Mounted Transformer
|
Key attributes |
|
|
Industry-specific attributes |
|
|
Product |
Single Phase Oil Filled Pole Mounted Transformer |
|
Phase |
Single |
|
Coil Number |
Autotransformer |
|
Other attributes |
|
|
Place of Origin |
Zhejiang, China |
|
Model Number |
Single phase transformer |
|
Rated capacity |
From 10kva to 333kva |
|
High Voltage |
34.5kV and below |
|
Low Voltage |
120/240/277/480V |
|
Frequency |
50/60Hz |
|
Standard |
IEC, ANSI, IEEE, CSA |
|
Vector group |
Ii0, Ii6 |
|
Material |
Aluminum/Copper |
|
Application |
Rural power grid, Remote mountainous areas, scattered villages, Agricultural production, lighting, Power consumption, Railway, Urban power grid |
|
Type |
Oil-immersed Transformer |
|
Feature |
Low Loss |
The following table is the standard parameter of the conventional pole mounted transformer.
|
CAPACITY (kVA) |
η(%) |
ε(%) |
Io(%) |
CORE LOSS (W) |
COPPER LOSS (W) |
DIMENSION(MM) |
OIL (L) |
TOTAL W.T (kg) |
||
|
W |
D |
H |
||||||||
|
10 |
97.2 |
3 |
1.9 |
45 |
180 |
440 |
520 |
940 |
30 |
100 |
|
15 |
97.3 |
3 |
1.8 |
58 |
215 |
450 |
530 |
970 |
30 |
130 |
|
25 |
97.5 |
2.8 |
1.7 |
82 |
295 |
500 |
580 |
980 |
40 |
180 |
|
37.5 |
97.7 |
2.6 |
1.6 |
110 |
400 |
520 |
600 |
1000 |
40 |
220 |
|
50 |
98.1 |
1.9 |
1.5 |
140 |
490 |
540 |
630 |
1060 |
45 |
280 |
|
75 |
98.2 |
1.8 |
1.4 |
200 |
700 |
590 |
670 |
1100 |
55 |
380 |
|
100 |
98.3 |
1.7 |
1.3 |
260 |
900 |
680 |
680 |
1120 |
60 |
450 |
|
167 |
98.4 |
1.6 |
1.2 |
450 |
1500 |
710 |
800 |
1190 |
80 |
580 |
|
250 |
98.5 |
1.5 |
1.1 |
650 |
2250 |
980 |
950 |
1350 |
215 |
980 |
|
333 |
98.6 |
1.4 |
1 |
800 |
3000 |
1040 |
960 |
1400 |
240 |
1100 |
Test Item
√ Winding Resistance Test
√ Insulation Resistance Test
√ Voltage Ratio Error Test
√ Short-circuit Impedance Test
√ No-load Loss (Wattage) Test
√ Load Loss (Wattage) Test
√ Induced Voltage Withstand Test
√ Separate Source Voltage Withstand Test
√ Pressure Integrity Test Test
Distribution Transformer Pictures
Distribution Transformer Packaging
Frequently Asked Questions (FAQ)
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