Substation Using the Operators Still Dominate

Substation Power

Substation are still using the operators still dominate most of the electricity system in Indonesia. Operators in implementing its duties in general can be described as follows to record the measurement / metering MW, MX, Voltage, Current. Perform control functions of the PMT / PMS. Do record the alarm that appears when there is an abnormal condition.

In concept substations without operator (GITO) the role of the operator replaced by the application of technology. In line large a GITO must include devices that function as follows:

In the process controls necessary

• description of the single line
• button for execution
• indication button / status on / off.
• position of local / remote.

people improve substation

In the process of monitoring is required:

• Alarm indication
• measurement instruments
• transducer
• terminal block
• miniature circuit breake

In the protection needed:

• over current relay
• ground fault relay
• reclosing relays
• auxiliary relay

GITO for function with reliable, efficient, accurate, it is necessary to consider matters as follows: Structure of a coordinated submit device at ion. The device monitoring, control and protection of integrated and interconnected integrated both hardware and software is essential to maintain reliability or reliability of GITO. Reliable data communication networks, data communication networks, both internally contained in the Parent substation (connection between devices GITO) and communication network between the main substation to the control center should be required to have the availability of reliable and if necessary should be complete with-ack komunikasib network

ups. In addition to a reliable communication network between devices must also use communication protocols and

serial interface standard, this is very useful for planned at a later time if done

integration of devices / new intelligent devices.

Control device on a GITO must be equipped with a blocking signal which will serve to cancel the command execution if the tools are executed are not allowed to perform command open-close. This is particularly useful when done maintenance of the transmission line / Conductor or maintenance of the switching device. Mechanism sequence of switching devices into it important in the process of substation control. Reliability control functions to execute (execute command) is very important in GITO.Sw ITC Hing Controllable devices must show an accurate indication or status. Motor as its main shall be maintained on a regular basis and also monitored all the time.

Data bank which is located in GITO serves to collect the data that was acquired by the devices. The data bank can be used as a back-up SCADA data if the communication between the substation with the Control Center to crash. Besides, as the data storage media, data banks are also designed to function to forward the data control commands from the control center.

In the Bank's own data should also be displayed visually single line diagram, indicate on / off switching devices, alarms that appear. Execute command can also be done in the data bank, so that locally (in GI) also could have done the execution command open - close it remotely.