The distribution transformer, also known as service transformer, is the transformer that is responsible for providing final voltage transformation within the system of electric power distribution. This transformer steps down the voltage that is used in distribution lines and brings it to a standard required by the customers. The advent of efficient transformers made the distribution of AC power more feasible and realistic.
The distribution transformer is usually mounted on the utility pole and these transformers are referred to as the pole-mount transformers. If the lines of distribution are situated at underground or ground level then distribution transformers are made to mount on the concrete pads, and they are locked in the steel cases The distribution transformers have ratings of under 200 KVA however some national standards might allow units ranging up to 5000 KVA.
The distribution transformer usually don’t tend to operate at full load and thus their design provides maximum efficiency at significantly lower loads. To achieve higher efficiency, the regulation of voltage in such type of transformers must be kept at a minimum. This is why these transformers are designed for having small leakage reactance. The distribution transformers are classified into various types or categories based on various factors like mounting location, insulation type, voltage class, number of phases and basic impulse insulation level. You can visit the company website for more details on the different aspects of the distribution transformer.
The various distribution transformer setups
There are various service providers and distribution transformer manufacturers in the market and Rockwill is one of the prominent names. If you are looking for one of the transformer setup then you can find the whole range of products on the company website. Some of these distribution transformers include H61 distribution transformer, H59 distribution transformer, 11/0.4kv 50kva oil-immersed distribution transformers, 20kv SCB10 cast resin distribution transformer dry type, distribution transformer with amorphous coil low loss and 11KV 3 phase oil immersed distribution transformer amongst others.
Distribution transformer with amorphous coil low loss: This three phase transformer from https://www.cnrockwill.com/ is an amorphous coil distribution transformer and it is standard device with full compliance to IEC60076,GB1094-1996. The amorphous is low loss transformer with the alloy material that uses the novel energy-saving material. This material melts under specific conditions where the use of ultra quick cooling technique and spraying it into cooling rollers for casting thin. Some of the characteristics of the amorphous alloy material are as follows. This material is thin and has high resistivity, which is approximately three times that of silicon steel belt. It has a high frequency and it has a small iron loss at 1.35T.
As far as product features go it has two or three windings and it has no load or on-load voltage tapping charger. The frequency is between 50 and 60hz. The cooling description is ONAN/OFAF/ONAF. The levels of tap charger is 5,7,13 and 17. It has a rating plate and corrugated refrigeration panels. It comes with a thermometer, oil level indicator and oil draining value.