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Friday, July 30, 2010

preparation of monthly reports (Part 2)

This is the last part of the topic under monthly reports. Another report that is being prepared monthly is the Transformer load profile(TLP). The TLP will provide the peak load of the Transformer/s and its corresponding date and time.

Wednesday, July 28, 2010

Testing for grounded DC supply in an Ungrounded DC System

In an ungrounded DC System, the positive and negative terminals are not directly connected to ground while in the Grounded DC System, one of either terminal is connected directly to ground. Usually, this DC System is created when the configuration of the AC voltage source connected to the rectifier is in delta-connection and the junction between the rectifiers is not connected to ground.

Monday, July 26, 2010

preparation of monthly reports (Part 1)

Every last Monday of the month, monthly reports are required in our substation. There are at least nine reports to be submitted at our main office were trends and different values are tallied. I am going to discuss all of the reports that we are required to submit.

Friday, July 23, 2010

substation control room building leaks

we have been experiencing leaks from the cracks of the concrete gutter of our substation control room building. Since the building is still part of the substation, I will discuss some of our corrective actions which may help others or open to suggestions from the readers.

Setting or resetting of Frequency Relay at Electric Power Substation

Yesterday was the scheduled setting of Frequency Relay on our substation. Frequency Relay is a device that monitors the increase and decrease of frequency which can isolate a certain feeder if the frequency is unstable.

Monday, July 19, 2010

How to prepare a Substation Daily logsheet

This is to differentiate the logbook to a logsheet. Normally, the logbook entries consist of phrases and sentences which describe the activities that happen in a substation.

Sunday, July 18, 2010

substation engineers and operators guide: logbook

A logbook is a listing of all events and activities done in the substation. It serves a reference by the operators and engineers and a record book for easy retrieval of historical activities and data.