Development of a Monitoring System Automatic Power Meter at the "Gunung Salak" Geothermal Power Plant, Sukabumi, Indonesia

kWh meter is a tool measuring device used in PT Indonesia
geothermal power plant "Gunung Salak" to measure the energy
generated generator and its auxiliary engine equipment. kWh
meter devices connect with the LAN network so that it can be
remotely accessed through the corporate network. The protocol
used to access kWh meter data is Modbus TCP and HTTP.
Access to the Modbus TCP protocol has a limited number of
users. With the corporate Server Central office's presence on
standby to fetch data in real-time, access via Modbus protocol
is often impossible. One alternative is using the HTTP protocol.
To access kWh meters via HTTP protocol can be done using a
web browser. The operation field requires real-time data on
kWh meters for plant condition monitoring and generation
monitoring. With a large amount of kWh meter, the time it
takes to perform data retrieval at all meters when using a web
browser for longer, this becomes less effective as the data
cannot be accessed simultaneously. Automatic meter reading
application is one of the solutions used as a bridge to access
multiple kWh meters simultaneously. By implementing
parallel computing with a multithreading method, searching
and retrieving data is faster so that the data displayed in the
client application corresponds to the real-time data on the
measuring instrument kWh meter.
Keywords: appropriate technology, geothermal power plant,
Indonesia, monitoring