Complete Transformer Substations Voltage
Electric substation – part of the transmission and distribution of electric energy, which is an increase or decrease the value of the voltage using transformers. There are two the form of electrical substations: Distribution and transformer. Distribution substation works at one voltage and serves as a hub for consumers and other stations. At the transformer used transformer to raise or lower the voltage. The most frequent combinations substation. In electrical networks, voltage can vary from 0.110 kW to 1150 kW, although gost 21128-83 permits and lower values voltage.
Converting the voltage usually occurs consistently on several substations, ranging from the power plant, where the voltage is increased to transfer power line to the end of the chain, where it significantly reduced before distribution to consumers. In the field of direct consumption of electricity voltage is lower with complete electrical devices of high voltage to 220, 380 or 660. With the same voltage Electricity is supplied to the jobs and businesses in residential areas. One of the most common complete electrical devices are high voltage transformer substations. Complete transformer substations are to receive electrical power three-phase alternating current (50 Hz) voltage of 6kV or 10kV and converting it into electricity voltage of 0, 4kV. Different power substations installed to supply electricity to small communities or industrial facilities. cft produced in the performance of air or cable bushings and cable or air-cable output. On the outgoing lines are installed circuit breakers.
In the case of air connections to the line of high-voltage substations supplied complete with isolator, which is installed on nearest transmission towers. qft with the unit that protects the unit from overload and short circuit. Surge protection on the high side and low voltage by a spark gap. Block street lighting qft equipped with an automatic on and off by photocells. The inner cabinet qft natural ventilation. All elements are mounted in a single installation and are fully prepared for the connection chain of high and low voltage.