This 11/0.4 kV oil-immersed distribution transformer adopts grain-oriented silicon steel core and high-performance winding materials. The sealed oil tank filled with insulating oil provides insulation, heat transfer and arc suppression. The whole machine is designed to cope with outdoor exposed installation, frequent load variation and seasonal temperature changes. It strictly complies with international distribution transformer standards and can be connected to photovoltaic, wind power and conventional grid systems.
Product Parameters
|
Parameter Item |
Specification |
|
Voltage Combination |
11kV / 0.4kV |
|
Capacity Range |
50kVA～2000kVA |
|
Cooling Method |
ONAN Oil Immersed Natural Cooling |
|
Connection Group |
Dyn11 |
|
Impedance Voltage |
4% / 6% (depends on capacity) |
|
Max Temperature Rise |
Winding 65K |
|
Ambient Temperature |
-20℃～+40℃ |
|
Voltage Regulation |
Off-circuit tap changer |
|
Installation |
Pole-mounted outdoor / indoor foundation |
Product Advantages
Clear voltage grade matching
Standard 11/0.4kV ratio directly matches medium-low voltage distribution network, simplifying grid design and on-site commissioning.
Strong environmental adaptability
Sealed oil tank structure resists rain, dust and humidity, suitable for pole-mounted outdoor distribution networks.
Stable under fluctuating load
Optimized magnetic circuit design reduces vibration and noise during load swing, avoiding frequent overheating alarms.
Flexible grid compatibility
Compatible with distributed renewable energy access, supporting micro-grid and off-grid power supply schemes.
FAQ
Q: What is the main application scenario of the 11/0.4 kV oil-immersed distribution transformer?
A: The 11/0.4 kV oil-immersed distribution transformer is mainly used for urban and rural distribution networks, rural electrification projects, pole-mounted power supply, small photovoltaic power stations, residential districts and remote decentralized power supply sites.
Q: Can the 11/0.4 kV oil-immersed distribution transformer be installed directly on utility poles?
A: Yes. The transformer has standard pole-mounted models. With matched mounting brackets and anti-drop accessories, it can be safely installed on power poles for outdoor distribution.
Q: What maintenance work should be done regularly for this distribution transformer?
A: Operators should regularly check the oil level of the 11/0.4 kV oil-immersed distribution transformer, inspect sealing points for leakage, test insulating oil performance, and clean external dust and debris to avoid heat accumulation and insulation deterioration.
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