Distribution Transformer Diagram
Mounting location pole pad underground vault type of insulation liquid immersed or dry type number of phases single phase or three phase voltage class basic impulse insulation level bil.
Distribution transformer diagram. The secondary star configuration allows for a 3 phase and neutral dy1 supply providing line and phase voltages and currents. This material does not replace the extensive training. This type of 1 1 transformer is classed as an isolation transformer as both the primary and secondary windings of the transformer have the same number of volts per turn. The power available is 3 phase 240 volts line to neutral.
A three phase transformer is built for a specific connection and voltage transformation and the unit will have a nameplate with the internal connections shown. All work on this equipment should be performed only by qualified specialists. The efficiency of a transformer is the ratio of the power it delivers to the load to the power it absorbs from the supply. The purpose of the grounding electrode and grounding electrode conductor is to connect the separately derived system transformer grounded conductor or equipment to ground earth to limit the voltage imposed by line surges and to stabilize the transformer secondary voltage to ground during normal operation photo 3.
Distribution transformers are classified into different categories based on factors such as. The square d distribution transformer is designed to supply power throughout the building. Ge provides a broad array of distribution transformers to support a variety of applications. All of eaton s transformers are specifically designed to meet federal energy efficiency requirements for voltage transformation as near as practically possible to the load for economy and distribution of power.
The transformer permits multiple voltages to be leveraged in the design of the system. 3 phase distribution transformers generally have a delta triangular connected primary winding and a star wye connected secondary winding. Most commercial and industrial loads require a three phase transformer to transform the three phase distribution voltage to the ultimate utilization level. Our product lines include pole and pad mounted single and three phase solutions as well as primary and secondary substation transformers cast coil transformers.
Distribution transformers highly reliable state of the art distribution solutions. I need a 3 phase distribution transformer 10 15 kva to provide 120 volts power to appliances. Energized transformers and live distribution lines present the risk of electrical shock.