Primary Voltage: 7.2KV / 11KV / 13.2KV / 13.8KV / 34.5KV / 46KV or other
Secondary Voltage: 208Y/120V to 14,400V or other
Rated Power: 1000 KVA
Connection Type: Dyn11 / YNyn0 or other
Standards: ANSI/IEEE, CSA/CAN, DOE
Certifications: UL, cUL, CSA, SGS
This 1000 kVA three phase pad mounted transformer is specially designed for urban power grids, reducing energy consumption and improving power supply quality. More importantly, this transformer is widely used around the world.
CHBEB holds full certifications including UL, cUL, CSA and SGS, and also provides OEM/ODM services. If you have any inquiry needs, please contact us.
The 1000KVA Three Phase Pad Mounted Transformer has high operational stability and excellent noise control, making it suitable for areas with high noise sensitivity such as schools and hospitals.
It has good expandability, making it convenient to increase loads or upgrade equipment according to future power requirements.
The internal configuration is flexible and can adapt to complex power grid environments. It can reserve a certain amount of redundant capacity to handle peak electricity demand and future business development in large commercial or small industrial applications, ensuring the stability and reliability of power supply, meeting diversified power requirements, and providing reliable power protection for different application scenarios.
The 1000KVA Three Phase Pad Mounted Transformer is suitable for applications with high requirements for power supply reliability, such as commercial areas, residential areas, hospitals, tunnels, subways, and other locations.
In terms of technical parameters, the 1000KVA Three Phase Pad Mounted Transformer can withstand shock with a horizontal acceleration of 0.4m/s² and a vertical acceleration of 0.15m/s² in terms of vibration resistance. However, it should be noted that the installation altitude should be ≤1000m to avoid affecting insulation performance due to reduced air density.
The installation location should be away from areas with severe vibration, chemical corrosion, and explosion risks. For example, in bridge and road construction projects, the compact design of the 1000KVA Three Phase Pad Mounted Transformer can save space. In rail transit projects, the moisture resistance of the 1000KVA Three Phase Pad Mounted Transformer can handle the high humidity challenges of underground environments.
| Parameter | Details |
| Product Type | Three Phase Oil Immersed Pad Mounted Transformer |
| Rated Capacity | 1000 kVA |
| Number of Phases | Three Phase |
| Rated Frequency | 50Hz / 60Hz |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Insulating Medium | Mineral Insulating Oil (Vegetable Oil Optional) |
| Winding Material | Copper Winding (Recommended) / Aluminum Winding |
| HV Rated Voltage | 6.6kV, 10kV, 11kV, 12.47kV, 13.8kV (Project Based) |
| LV Rated Voltage | 400V / 415V / 480V / 480Y/277V |
| Voltage Ratio | Configured According to System Voltage |
| Recommended Vector Group | Dyn11 (Universal Export) |
| HV Connection Method | Loop Feed / Radial Feed |
| LV Output Method | LV Bushing or LV Circuit Breaker Output |
| HV Voltage Regulation | De-Energized Tap Changer (DETC) |
| Tap Range | ±2×2.5% (Common) or ±5% |
| Impedance Voltage | 5%~6%, Recommended 5.75% |
| No-Load Current | ≤1.5% |
| Voltage Regulation Rate | ≤4% |
| Efficiency | ≥98% (Design Dependent) |
| Temperature Rise | Top Oil Temperature Rise 55K; Average Winding Temperature Rise 65K |
| Insulation Class | Class A Oil Immersed Insulation |
| Duty Type | Continuous Operation |
| Noise Level | Approx. 55~60 dB |
| Protection Degree | IP54 / IP55 |
| Enclosure Material | Galvanized Steel Sheet, Stainless Steel Optional |
| Enclosure Structure | Integrated HV Compartment + Transformer Compartment + LV Compartment |
| Installation Method | Outdoor Pad Mounted Installation |
| Grounding Method | Enclosure Grounding, HV and LV Side Grounding |
| Ambient Temperature | -25℃ ~ +40℃ (Standard) |
| High Temperature Design | Middle East Region Can Be Designed for +50℃ |
| Altitude | ≤1000m (Derating Required for High Altitude) |
| Corrosion Protection | C3 Standard; C4-C5 Recommended for Coastal / Desert Environments |
The dimensions of a 1000kVA Three-Phase Pad-Mounted Transformer are generally 3-4 meters in length, 2-2.5 meters in width, and 2.2-2.8 meters in height. These dimensions are determined by considering requirements such as equipment compactness and maintenance convenience.
For large high-voltage power box transformers, such as those with a 35kV voltage level, the dimensions will be larger. The length may reach 5-7 meters, the width 3-4 meters, and the height around 3-4 meters. This is mainly because high-voltage equipment has a larger volume and requires sufficient space to ensure safety distances and operation and maintenance requirements.
According to the structural type, there are also differences between prefabricated box substations and on-site assembled box substations. Prefabricated box substations emphasize overall transportation and installation convenience, so their design is relatively compact. Generally, the overall length does not exceed 5 meters, the width is 2-3 meters, and the height is 2.5-3 meters.
According to different application scenarios, such as power box transformers used in urban residential communities, the dimensions are relatively smaller in order to reduce occupied space and impact on the surrounding environment. Common box transformers used in residential communities have a length of 2-3 meters, a width of 1.2-1.8 meters, and a height of 1.8-2.2 meters, which can meet power supply requirements while adapting to the available community space.
Power box transformers used in industrial plants are relatively larger because they need to meet higher power load requirements and contain more internal equipment. The general dimensions are 4-6 meters in length, 2.5-3.5 meters in width, and 2.5-3 meters in height, providing space for various high-capacity electrical equipment.
From the perspective of materials, power box transformers with stainless steel enclosures have basically the same dimensions as those with ordinary carbon steel enclosures. However, stainless steel has higher strength, which can make the enclosure design thinner to some extent. For example, small stainless steel box transformers may have a length of 2-2.5 meters, a width of 1-1.5 meters, and a height of 1.5-2 meters.
For power box transformers used in high-altitude areas, due to thinner air and changes in heat dissipation conditions, larger heat dissipation space is required to ensure normal operation. Therefore, their dimensions are appropriately increased. Normally, compared with box transformers used in conventional areas, the length increases by 0.5-1 meter, the width increases by 0.3-0.5 meter, and the height increases by 0.2-0.4 meter.
For power box transformers used in coastal areas, factors such as moisture resistance and salt spray corrosion protection need to be considered. In addition to strengthening protective measures, the dimensions may also be adjusted. Generally, medium-sized coastal box transformers have a length of 3-4 meters, a width of 1.8-2.2 meters, and a height of 2-2.4 meters.
There are also differences between the dimensions of old power box transformers and new energy-saving box transformers.
Due to technical limitations, old box transformers usually have relatively loose equipment layouts, and their overall dimensions are generally larger. New energy-saving box transformers adopt compact design technologies, such as smaller transformers and other equipment, significantly reducing the overall size. Small energy-saving box transformers may have a length of 1.5-2 meters, a width of 0.8-1.2 meters, and a height of 1.5-1.8 meters.
If you have any questions about dimensions, please feel free to contact us. We will provide professional technical support and help solve your product selection issues.
