Instalasi Pembangkit Listrik

Maintenance aims to maintain the efficiency, reliability, and economic lives. During its development, maintenance carried out as follows: 1. Maintenance routine when there is interference or damage. This method can still be used to tools that are not essential role in the operation. 2. Periodic maintenance. Maintenance is done by a certain time period based on statistical manual mill or ...

The first amplifier is called a pilot generator exciter and the main generator exciter amplifier called the second (main amplifier). Main exciter is an alternating current generator with the stator poles. The rotor generates alternating current is rectified by a rotating diode exciter on the main shaft (the shaft with the main generator). Direct current is generated by rotating diode ...

Oil conductivity (k) is highly dependent on the field strength, temperature and contamination. Conductivity values caused by the movement of ions. K measurements can indicate the level of purity of transformer oil. Impurities electrolytic decomposition produces positive and negative ions. Ion mobility is constant only if Ohm’s law applies. If there is a certain field strength in the dielectric field, ...

Relays in generator protection system consists of: 1) Overcurrent Relays Function detects overcurrent flowing in the generator stator coils. Overcurrent may occur in the generator stator coil or coils in the rotor. Flow over the stator coils can also occur due to excessive load on the generator. 2) Differential Relay Function detects disturbances in the generator stator coils and should ...

Telecommunications is a very important means of operation for electrical center, especially if the central electrical work within the system interconnect. Telecommunications facilities that are commonly used in power plants are: 1. Payphones, including: Facsimile, telex, and electronic mail. 2. Power line carrier, for voice and for data transmission, including for the protection of the system. 3. Fibre optics can ...

Figure II.98 shows the diagram of the measurement of the generator and the channel. Magnitude is measured in: 1. Voltage electrical Measurement of the voltage required to maintain the quality of electricity supply should not be terialu low and to keep from damaging the insulation, the voltage required should not be high terialu. 2. Flows Current measurement is necessary to ...