OMEK Power 225 kVA 13.8 kV Transformer Overview
OMEK Power’s 225 kVA transformer is designed as pad mounted style, and ideal for outdoor use. It steps down 13.8 kV primary power to 480Y/277 V secondary power.
Protected by a weatherproof enclosure, uses a dead-front design and self-cooled ONAN system, it can easily cope with harsh outdoor environments.
In addition, our 225 kVA 3-phase pad mount transformer complies with applicable ANSI/IEEE, NEMA, CSA, and DOE efficiency requirements.
Our 225 kVA Pad-Mounted 13.8 kV Transformer Specifications
225 kVA 13.8 kV Oil Filled Transformer
| Specification | Details |
|---|---|
| Rated Power | 225 kVA |
| Primary Voltage | 13.8 kV |
| Secondary Voltage | 480Y/277 V |
| Phase | 3 Phase |
| Frequency | 50, 60 Hz |
| Transformer Type | Pad-Mounted, Compartmentalized, Dead-Front |
| Cooling | ONAN, Self-Cooled |
| Insulating Medium | Mineral Oil |
| Impedance | 5.40% |
| Tap Changer | 5-Position Tap Changer |
| HV Class | 15 kV Class |
| No-Load Loss | 400 W |
| Total Loss at 50% Load | 947 W |
| Load Loss at 100% Load | 2,330 W |
| Total Loss at 100% Load | 2,730 W |
| Enclosure | NEMA 3R, Weatherproof |
| Dimensions | Approx. 1600 × 1600 × 1700 mm |
| Weight | Approx. 1,630 kg |
| Applicable Standards | ANSI/IEEE, NEMA, CSA, DOE |
225 kVA Pad Mounted Transformer Cabinet & Enclosure
This 225 kVA pad-mounted substation integrates a HV compartment on the left, a low-voltage LV compartment on the right, and a 225 kVA step down distribution transformer in one outdoor enclosure, with locking doors.
| Specification | Details |
|---|---|
| Cabinet Material | Coated Steel |
| Base Platform Material | Coated Steel |
| Portability | Lifting lugs, provisions for jacking under base, w/ base construction suitable for using rollers or skidding |
| Housing Type | Compartmental Air-Filled Cabinet w/ Locking Doors, HV Compartment Left, LV Compartment Right, Steel Barrier Separation, HV Door Spring-Loaded Release Pin in LV Compartment |
| Enclosure Rating | NEMA 3R Weatherproof Wiring Cabinet, Sealed Tank |
| Seismic Rating | Yes |
| Paint Type | Weatherproof and UV Resistant Epoxy Coating and Undercoating |
| Finish Color | Bell Green |
| Mounting | Pad Mounted |
| Conduit Opening | Bottom Feed Underground Entry/Exit |
| HV Compartment Base Wireway Dimensions | 20-W x 5-D |
| LV Compartment Base Wireway Dimensions | 16-W x 5-D |
| MV/LV Compartment Cabinet Depth | 20-D |
| Tank Cover Access Handhole | N/A |
| Dimensions | 61-W x 49-D x 69-H |
| Dry Weight (w/o Oil) | 1,463 lb |
| 3,420 lb |
225 kVA 13.8 kV Pad-Mounted Transformer Benefits
225 kVA Transformer Current and Capacity
It depends on the terminal voltage size you require us to customize for you. If your low-voltage side voltage is 480V, OMEK 225 kva 3-phase padmount transformer can provide secondary amps approximately 271A.
But, a kindly reminder, don’t run it at full load for a long time. OMEK recommends use a 315A reserved margin for the main circuit breaker.
Our 225 kVA, 13.8 kV transformer can support a total load of approximately 180 kW, including motors, air compressors, lighting, and production lines.
To ensure long-term stable operation, OMEK recommends keeping the actual load within 70% to 80% of the transformer’s capacity, that is, between 126 kW and 144 kW. This helps slow down insulation aging and significantly extends the transformer’s service life.
Why Choose OMEK's 225kVA Transformer?
Full set of transformer routine and type tests are completed here. Our quality verification assures you.
OMEK transformer workshops are equipped with large transformer lifting and handling equipment. Several transformer warehouses. We have powerful large-scale production ability.
OMEK’s workshop separates the testing center and production area. Workers are protected and ketp away from equipment test area.
We are committed to supplying products and most importantly, solve your issues, from generation and step up to transmission, distribution, and end-user power supply.
Our 225 kVA transformers have passed international verification of ASTA, CE, ISO, UL, etc. We can satisfy many countries’ mandatory certification requirements.
Your Satisfaction Drives Us Forward
Providing you with reliable and safe transformers is what OMEK is committed to every day. Contact us for a quick quotation right now!
FAQs
Have any questions? We’re here to help you out.
The rated full-load secondary current primarily depends on the secondary voltage. The 13.8 kV rating does not affect the secondary current. Below is a summary of common secondary currents for your reference.
| 225 kVA Transformer | Primary Voltage | Secondary Voltage | Rated current on the secondary side (amps) |
|---|---|---|---|
| 3 phase pad mounted transformer | 13.8 kV (does not change the current on the secondary voltage) | 120/208 V | 624.5 A |
| 120/240 V | 541.3 A | ||
| 240 V | 541.3 A | ||
| 380 V | 341.9 A | ||
| 400 V | 324.8 A | ||
| 415 V | 313.0 A | ||
| 480 V | 270.6 A | ||
| 600 V | 216.5 A | ||
| 690 V | 188.3 A |
225kVA is the rated capacity, which determines the maximum capacity that the transformer can carry. In reality, due to the differences in application scenarios, it can be designed into different structures and different processes.
For instance, there are oil-immersed 225 kVA transformers for outdoor use and dry type transformers 225 kVA suitable for indoor use. In addition, according to different voltage requirements of customers, there are 13.8kV /480V, 10kV/400V, etc.
OMEK can customize it according to your requirements. Contact us and tell us your needs!
Sure. OMEK can not only produce oil-type and dry-type 225 kVA transformers, but also customize them for you based on energy efficiency levels, phase numbers, voltage levels, voltage regulation methods, etc. Send your parameter list now!
If just to install, not including the new 225 kVA pad-mounted transformer unit itself, then the cost is approximately 7,500 USD. The actual cost may vary due to various factors, such as the length of incoming cables, whether civil construction is required, and the power company’s inspection requirements.
If the cost of the new 225 kVA pad-mounted transformer unit is also included, the total cost generally ranges between 20,000 and 40,000 USD.
There are two main variables affecting the cost, one is the cost of the 225 kVA pad-mounted transformer itself, and the other is the distance for cable laying.
If needed, please contact us, and our engineers will provide you with a detailed quotation within 24 hours.
If the parameters you requires for the 225 kVA pad mount transformer are standard, you can inquire manufacturers with strong production capacity and strong warehousing capabilities. There might be available stock for fast delivery.
If you have special customization requirements, you need to look for manufacturers with strong customization capabilities and rich experience.
If you want a 225 kVA pad mounted transformer with better cost performance, you can contact Chinese transformer suppliers, such as from B2B platforms like Alibaba or Made-in-China. However, the price might be slightly higher than that of the original factory. Jinan Omek Electric Power Co., Ltd. is a 100% factory directly from the source. It has multiple branch factories and warehouses worldwide, and has a dedicated engineering team for customized design. It is your reliable partner!
OMEK Power can make 225 kVA pad mounted transformers into three energy efficiency grades as below:
| Efficiency Level | No-load Loss (W) | Load Loss (75℃) (W) |
|---|---|---|
| Level 1 (Tier 1) | 100 | 2400 / 2285 |
| Level 2 (Tier 2) | 130 | 2533 / 2418 |
| Level 3 (Tier 3) | 130 | 2965 / 2825 |
If you have custom requirements for special efficiency ratings, please contact us!
225 kVA pad mount transformers for industrial use can be the most suitable and best if all the following aspects are met:
Overload resistance, dust and moisture resistance, strong short-circuit capacity, IEEE/UL certified, low loss, and convenient for on-site maintenance.
Finally, it also depends on its price. When all the above situations are met, choosing the one with the lowest price is of course the most suitable.
OMEK’s 225 kVA pad mount transformers are suitable for industrial power distribution, and our products offer stable performance with a cost effective solution.
The 225 kVA pad mounted transformer is suitable for scenarios listed as below:
1. Small and medium-sized processing plants with a total equipment power of 100-160kW;
2. Small and medium-sized distributed photovoltaic systems with a power of 150-180kW;
3. Small sewage treatment stations
4. Temporary power supply for construction sites