After electric power is generated by a power plant, then the power is transmitted (transmitted) through the transmission network. From the transmission network then distributed to the consumers of electricity through power distribution network. In PTL it usually generates electrical energy at medium voltage, ie generally between 6-20 kv, in large power systems or if PTL is far away from the user, then the voltage needs to be transmitted through the transmission line from the medium voltage to high voltage even extra high voltage .
At the generator voltage generated by the generator is 16 KV then increase the voltage through step-up transformer in GITET until the voltage becomes
500 KV, then it is channeled through SUTET to get to consumer of high voltage consumer, before the user consumes high voltage voltage first derived from TET to TT which is about 150 KV, the voltage is lowered through step-down transformer which is in Substation.
After that electricity is channeled through the SUTT to the consumer of the Medium Voltage user, before the user's consumption, the voltage is relegated back by the Substation via a step-down transformer, from about 20 KV.
Approaching the common electric power consumption center, the electric energy supplied through the JTM voltage is lowered, from TM to TR by the step-down transformer at the distribution station, the voltage is 220 and 380 volts, which is then distributed to the user by a distribution substation via JTR.
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