Pole mounted transformers are electric utility distribution transformers that are mounted on an electrical service pole (wood or concrete) and are usually at the level of the overhead cables. Pole mounted transformers are the common breadbox transformers used for converting distribution voltage to the 120/240 volt power used by homes and low-volume commercial installations.
Pole mounted electrical transformer are used in extensive rural area. These transformers range from 16 kVA to 100kVA and transform 11,000 to 33,000 volts down to a low voltage of 400 volts. Pole mounted transformers are reasonably small in size and mass so that it is easy to install them on single pole structures, and larger units on two-pole structures, approximately 5 meters above the ground. This makes the transformers inaccessible, reducing the risk of injury to animals and people and minimizing vandalism.
Single Phase Pole Mounted Transformer Parameters
| Number of Phase | Single Phase |
| Winding Type | Two Winding |
| Rated Capacity | 200kVA |
| High Voltage | 10/11kV |
| Low Voltage | 0.4kV |
| Tapping Range | ±2x2.5% |
| Impedance Voltage | 4% |
| Load Loss | 2.73/2.6kW |
| No-load Loss | 0.34kW |
| No-load Current | 1.0% |
| Frequency | 50/60Hz |
| Connection Group | Yyn0/Dyn11 |
| Cooling Method | ONAN |
| Coil Material | Aluminum/Copper |
| Size | 1240x780x1360mm |
| Weight | 910kg |
Pole distribution transformer Feeature
Advantages:
Pole mounted transformer reduce the risk of injury to residents.
When you place transformer on the ground, they must be enclosed in a protected area because people who do not understand the risks can access that area. The transformer mounted high above will not be disturbed by the locals, and there is little chance that someone will climb up and mess up the transformer and get hurt.
Compact: pole mounted transformer are extremely compact and don't take up precious ground space.
Disadvantages:
Pole-mounted transformer might be more difficult to maintain.
One of the immense damages to a transformer mounted on a pole is that when something goes wrong, you have to ask specific electrical companies to work with the know-how to access the transformer on the pole and do the work. On the ground, accessibility is easy, so maintenance is less likely to be overlooked and if something goes wrong they can be done faster.
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GNEE Electrical Group Co., Ltd. is a technology-based enterprise specializing in the research and development, production, sales and service of dry-type transformers, power transformers, high and low voltage switchgear and related products. Our factory can provide a full range of distribution transformers.
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