Power Station
DEPARTMENT OF ENGINEERING
ELECTRICAL POWER, COMPUTER & TELECOMMUNICATIONS SECTION
Higher College of Technology, P O BOX 74, Al-KHUWAIR, CODE 133 24473600 Fx 24485364
Second semester
2012-13
Specialization: Electrical power engineering Level: Baccalaureate EEPW4256: Power stations Chapter 1: Load curves & its relevant factors
Prepared by: Jayanna k Lecturer: Electrical power Engineering
Student name: Student ID:
Power stations
Page 1
Chapter 1 Load curves & its relevant factors
Contents: 1.1 Analysis of Load curves 1.2 Important terms & Factors 1.2.1 Connected Load 1.2.2 Maximum demand 1.2.3 Demand Factor 1.2.4 Average Load 1.2.5 Load Factor 1.2.6 Diversity Factor 1.2.7 Plant Capacity Factor 1.2.8 Plant Factor 1.3 Problems on load curves & its factors
References: [1] V.K. Mehta & Rohit Mehta, “Principles of Power System,” Third Edition, S.Chand & Company Ltd., INDIA, 2003, pp.41-55
Power stations
Page 2
1.1 Analysis of Load curves The load on a power station is never constant; it varies from time to time. These load variations during the whole day are recorded half-hourly or hourly and are plotted against time on the graph called daily load curves. Fig.1 shows a daily load curve of a power station.
The curve showing the variation of load on the power station with respect to time is known as a load curve. The curve shows the variation of load with respect to time during the day is known as daily load curve. The monthly load curve can be obtained from the daily load curves of that month. The yearly load curve can be obtained from the monthly load curves of that particular year. The load on power station is varying, being maximum at 6 PM (Fig.1). The daily load curves are important in generation as they provide following information: (i) The daily load curves shows the variations of load on the power station during different hours of the day (ii) The area under the daily load curve gives the number of units generated in
ELECTRICAL POWER, COMPUTER & TELECOMMUNICATIONS SECTION
Higher College of Technology, P O BOX 74, Al-KHUWAIR, CODE 133 24473600 Fx 24485364
Second semester
2012-13
Specialization: Electrical power engineering Level: Baccalaureate EEPW4256: Power stations Chapter 1: Load curves & its relevant factors
Prepared by: Jayanna k Lecturer: Electrical power Engineering
Student name: Student ID:
Power stations
Page 1
Chapter 1 Load curves & its relevant factors
Contents: 1.1 Analysis of Load curves 1.2 Important terms & Factors 1.2.1 Connected Load 1.2.2 Maximum demand 1.2.3 Demand Factor 1.2.4 Average Load 1.2.5 Load Factor 1.2.6 Diversity Factor 1.2.7 Plant Capacity Factor 1.2.8 Plant Factor 1.3 Problems on load curves & its factors
References: [1] V.K. Mehta & Rohit Mehta, “Principles of Power System,” Third Edition, S.Chand & Company Ltd., INDIA, 2003, pp.41-55
Power stations
Page 2
1.1 Analysis of Load curves The load on a power station is never constant; it varies from time to time. These load variations during the whole day are recorded half-hourly or hourly and are plotted against time on the graph called daily load curves. Fig.1 shows a daily load curve of a power station.
The curve showing the variation of load on the power station with respect to time is known as a load curve. The curve shows the variation of load with respect to time during the day is known as daily load curve. The monthly load curve can be obtained from the daily load curves of that month. The yearly load curve can be obtained from the monthly load curves of that particular year. The load on power station is varying, being maximum at 6 PM (Fig.1). The daily load curves are important in generation as they provide following information: (i) The daily load curves shows the variations of load on the power station during different hours of the day (ii) The area under the daily load curve gives the number of units generated in