10kV Three-phase Oil-immersed Low-loss Energy-saving Distribution Transformer
Key attributes
| Brand | ROCKWILL |
| Model NO. | 10kV Three-phase Oil-immersed Low-loss Energy-saving Distribution Transformer |
| Rated voltage | 10kV |
| Rated frequency | 50/60Hz |
| Rated capacity | 400kVA |
| Series | S11 |
Product descriptions from the supplier
Product Description
The 10kV Three-phase Oil-immersed Low-loss Energy-saving Distribution Transformer is a core component of modern power distribution networks, engineered for superior efficiency and reliability. Utilizing advanced core materials and an optimized design, it significantly reduces no-load and load losses compared to standard models. This transformer delivers substantial energy savings and lower operating costs over its lifespan, making it an economically smart and environmentally responsible choice for utilities and industries aiming to enhance the sustainability of their power infrastructure.
Product model
Conditions of use
Key Technical Features
Advanced Low-Loss Core Design:Constructed with high-grade, low-loss amorphous alloy or high-permeability silicon steel core, which dramatically reduces no-load (core) losses, the primary source of energy waste in transformers.
Optimized Energy Efficiency:Meets or exceeds stringent energy efficiency standards (such as IE3, IE4 or Chinese GB Standard). Its design minimizes total ownership cost by prioritizing high performance at both full and partial loads.
Robust Oil-Immersed Construction:The time-tested oil-immersed design provides excellent insulation and heat dissipation, ensuring stable operation, a long service life, and reliable performance under fluctuating load conditions.
Reduced Operating Costs:The significant reduction in energy losses translates directly into lower electricity bills, offering a rapid return on investment and a smaller carbon footprint.
Durable and Reliable Performance:Features a fully sealed tank to prevent oil oxidation, corrugated radiators for effective cooling, and high-quality components to ensure minimal maintenance and maximum uptime.
Performance Parameters: Technical Parameters of S11-30~1600/6~10/0.4 Series Oil-immersed Distribution Transformer
Rated Capacity |
Voltage Combination and Tapping Range |
Connection Group |
No-load Loss (W) |
Load Loss at 120℃ (W) |
Short-circuit Impedance % |
No-load Current % |
Outline Dimensions (Length * Width * Height mm) |
Total Weight (kg) |
Foot Mounting Dimensions (mm) |
||
High Voltage (kV) |
Tapping Range % |
Low Voltage (kV) |
|||||||||
30 |
6 6.3 6.6 10 10.5 11 |
± 5 ± 2×2.5 |
0.4 |
Dyn11 Yyn0 |
100 |
630/600 |
4.0 |
2.3 |
785 * 525 * 920 |
351 |
400 * 450 |
50 |
130 |
910/870 |
2.0 |
820 * 540 * 1000 |
442 |
400 * 450 |
|||||
63 |
150 |
1090/1040 |
1.9 |
850 * 565 * 1057 |
540 |
400 * 500 |
|||||
80 |
180 |
1310/1250 |
1.9 |
860 * 570 * 1125 |
549 |
400 * 500 |
|||||
100 |
200 |
1580/1500 |
1.8 |
910 * 635 * 1110 |
605 |
550 * 550 |
|||||
125 |
240 |
1890/1800 |
1.7 |
1020 * 645 * 1120 |
624 |
550 * 550 |
|||||
160 |
280 |
2310/2200 |
1.6 |
1045 * 675 * 1170 |
784 |
550 * 550 |
|||||
200 |
340 |
2730/2600 |
1.5 |
1105 * 745 * 1195 |
865 |
550 * 550 |
|||||
250 |
400 |
3200/3050 |
1.4 |
1145 * 745 * 1235 |
1018 |
550 * 600 |
|||||
315 |
480 |
3830/3650 |
1.4 |
1185 * 780 * 1290 |
1096 |
550 * 650 |
|||||
400 |
570 |
4520/4300 |
1.3 |
1295 * 835 * 1315 |
1466 |
550 * 650 |
|||||
500 |
680 |
5410/5150 |
1.2 |
1350 * 905 * 1410 |
1534 |
660 * 650 |
|||||
630 |
810 |
6200 |
4.5 |
1.1 |
1465 * 955 * 1475 |
1942 |
660 * 650 |
||||
800 |
980 |
7500 |
1.0 |
1505 * 970 * 1595 |
2186 |
660 * 750 |
|||||
1000 |
1150 |
10300 |
1.0 |
1675 * 1140 * 1625 |
2394 |
660 * 850 |
|||||
1250 |
1360 |
12000 |
0.9 |
1735 * 1205 * 1805 |
3254 |
660 * 850 |
|||||
1600 |
1640 |
14500 |
0.8 |
1935 * 1290 * 1855 |
3800 |
820 * 950 |
|||||
Note: for transformers rated at 500 kva and below, the load loss values above the diagonal lines in the table apply to dyn 11 or yzn 11 connection groups, and the load loss values below the diagonal lines apply to yyno connection groups.
Typical Application Scenarios
Public Utility Grids: Widely used in 10kV distribution substations for stepping down voltage to supply residential communities, commercial districts, and public facilities.
Industrial Power Supply: Serves as a dedicated power source for factories, manufacturing plants, and industrial parks where continuous operation and energy cost control are critical.
Renewable Energy Integration: Functions as a grid-connection point for distributed generation sources like solar and wind farms, where high efficiency is crucial for maximizing energy yield.
Infrastructure Projects: Provides reliable power for key infrastructure such as water pumping stations, railway systems, and airports, ensuring operational stability and energy savings.
Related Products
-
6.6kV Three-phase Power Distribution Transformer
-
H61 HV/LV distribution transformer
-
Energy Efficient Medium Voltage Transformers
-
100kVA Step Down All Copper 3 Phase Dry Type Distribution Transformer
-
1000kVA 11kV 3 Phase Oil-immersed distribution transformer three-phase
-
15kV Three-phase Oil-immersed Power Distribution Transformer
-
12kV 24kV 33kV Three Phases Transformer Pad Mounted HV/LV Plug-In Distribution Transformer
Related Knowledges
-
How to Handle Overheating of Busbar Isolating SwitchesOverheating of Busbar Isolating Switches: Causes and Handling ProceduresOverheating of busbar isolating switches is a common electrical equipment defect. If not addressed promptly, the situation can severely deteriorate during a system short circuit—when high short-circuit current flows through the overheated point, potentially causing contact melting or even destruction of the switch.When overheating of a busbar isolating switch is detected, follow these steps for safe handling: Report the defeFelix Spark11/08/2025 -
Manual or Electric Isolator Not Opening? Here’s What to DoIsolating Switch: Definition and OverviewAn isolating switch (or disconnector) is a switching device primarily used for isolating power sources, switching operations (bus transfer), and making or breaking small-current circuits. It has no arc-quenching capability.When in the open position, there is a specified insulation distance between contacts and a clearly visible disconnection indicator. When in the closed position, it can carry the normal operating current and, for a specified duration, thGarca11/08/2025 -
Why Capacitor Bank Isolators Overheat & How to FixCauses of High Temperature in Isolating Switches of Capacitor Banks and Corresponding SolutionsI. Causes: OverloadThe capacitor bank is operating beyond its designed rated capacity. Poor ContactOxidation, loosening, or wear at contact points increases contact resistance. High Ambient TemperatureElevated external environmental temperatures impair the switch’s ability to dissipate heat. Inadequate Heat DissipationPoor ventilation or dust accumulation on heat sinks hinders effective cooling. HarmonFelix Spark11/08/2025 -
Analysis of Isolating Switch Applications in Generator Neutral Grounding Resistor CabinetsApplication of Isolating Switches in Generator Neutral Grounding Resistor CabinetsIsolating switches are commonly installed in NS-FZ generator neutral grounding resistor cabinets. They provide a clearly visible disconnection point, ensuring the safety of maintenance and testing personnel. However, as high-voltage devices without arc-quenching capability, isolating switches must only be operated when the circuit is de-energized—i.e., under no-load conditions.The primary function of an isolating sEcho11/08/2025 -
Centralized vs Distributed Solar Power: Key DifferencesDifferences Between Centralized and Distributed Photovoltaic (PV) Power PlantsA distributed photovoltaic (PV) power plant refers to a power generation system that consists of multiple small-scale PV installations deployed across various locations. Compared to traditional large-scale centralized PV power plants, distributed PV systems offer the following advantages: Flexible Layout: Distributed PV systems can be flexibly installed based on local geographic conditions and electricity demand—in divEcho11/08/2025 -
Selection Principles and Considerations for Low-Voltage Electrical ApparatusHow to Select Low-Voltage Electrical Apparatus: Two Key Principles and Four Important ConsiderationsWhen selecting low-voltage electrical devices, two fundamental principles must be followed: safety and economy. Additionally, there are several critical factors to consider. Those unfamiliar with the process should refer to the guidelines below.I. Two Core Principles for Selecting Low-Voltage Electrical Apparatus Safety PrincipleThe selected low-voltage devices must operate accurately and reliablyJames11/08/2025
Related Solutions
-
PMU High precision distribution line protection automation systemPMU distribution line protection automation system is a new line distribution automation system.for slove presentproblem especially of earth fault. which is base on a Distribution Network Synchronous Phasor Measurement-μPMU.PMU (phasor measurement unit), A stand-alonedevice or module. The voltage/current samplingdata are all with a BDS/GPS timestamp accurateto US level.Basic functions:• Phasor: amplitude, phase Angle,• Frequency (f) and Frequency Variation (△f/△t)&muRockwill11/28/2024 -
Intelligent Operation Solution for 12kV Vacuum Circuit Breakers: Integrating Real-time Monitoring & Lifetime OptimizationⅠ. Equipment Operation & MaintenanceIntelligent Monitoring System IntegrationMulti-parameter Real-time Monitoring: Embedded sensors (temperature, displacement, Hall effect current sensors) track contact temperature rise, mechanical characteristics (opening/closing speed, overtravel), coil current, and partial discharge signals. Data undergoes preprocessing via edge computing prior to cloud upload.Lifetime Prediction Model: Dynamically evaluates remaining lifespan using electrical wear dataRockwill06/10/2025 -
SF6 Circuit Breaker Solutions for Outdoor Installation (Anti-Pollution & Seismic Resistance)I.Core Challenges in Outdoor InstallationIn high-voltage transmission and distribution systems, SF6 circuit breakers are exposed to complex outdoor environments for extended periods, facing the following critical issues:Pollution & Insulation DegradationDust, salt fog, and industrial pollutants in outdoor environments easily adhere to equipment surfaces. In coastal or industrial areas, pollution levels may reach Class IV, resulting in insufficient creepage distance and triggering flashoRockwill05/12/2025
