**8.3 Measurements at normal load**

222 Power Quality Harmonics Analysis and Real Measurements Data

Conduct Harmonic measurements at these buildings and monitor and check harmonics

Recommendation and findings are to be clearly drawn out of results and stressing the

Identify the sources and causes of harmonics at such selected locations: use such data in

To conduct harmonic measurement the team members attended intensive lectures and training on Power Quality and measurements. Training focused on how to use the power

Single line diagrams for each of the building under investigate were obtained as shown in Figure 4. Permissions to conduct measurement and open switch boards of the different feeders were also obtained through the university Electrical Maintenance department. The whole Excl file containing total PC's provided by from ITC indicating all the university PC's record and their distributions at the different building and labs etc…The total February

Fig. 4. Building 14 Single Line Diagram and Points of Measurements and switch boards

 Securing the total number of the university PC's and most PC's concentration area. Circulate Questionnaire to major PC users such as ITC to develop a sense where are the major area that may have harmonics as to affect ITC line currents and servers etc… Locate and prepare the building (14, consist of 263 PC's and 58 consist of 280 PC's) switchboard to be able to conduct different measurements being the highest building

containing PC's.

quality analyzer (PQA).

2009 PC's numbers was 6,344.00.

at different loading processing modes and times.

the process of making the appropriate mitigating actions.

mode of operations and size of PC lab.

The measurements have been conducted by the team members of the project according to the following time Table:


\*indicates the point between MPD2 &the transformer 380/208 v

\*\*indicates the point between UPS &the transformer 480/380 v

\*\*\*indicates the point between EPDP & the main feeder 3ф-4w 480v

#### Table 5. Time table of measurements

At the first point shown in the single line diagram (Figure 4), three measurements have been conducted over the three periods as listed in table 5.
