Petroleum Equipment Petroleum... · 2020-02-25 · o The student submits a weekly report about what...

Ministry of Higher Education and Scientific Research

Department of: Petroleum Equipment

College of: Technology Institute in Erbil

University of: Polytechnic

Subject: Electrical Petroleum Equipment

Course Book: Second Year

Lecturer's Name: RONAK AHMAD SAEED

Academic Year: 2019-2020

Directorate of Quality Assurance and Accreditation بھ ڕێوه بھ رایھ تی دڵنیایی جۆری ومتمانھ بھ خشین


1. Course name Electrical Petroleum Equipment 2. Lecturer in charge Ronak Ahmad Saeed 3. Department/ College Petroleum Equipment / Technology Institute in Erbil 4. Contact Email, [email protected] 5. Time (in hours) per week Theory : 1 hours, Practical: 2 hours 6. Office hours 4 hours 7. Course code 8. Teacher's academic profile

Bsc. In Electrical Engineering

MSc. In Electrical Engineering

9. Keywords 10. Course overview: This course will give the principals of the electrical engineering with all the fundamentals of electrical in such a way that they will gain theoretical and practical experience of about the fundamental concepts of electrical and electronic including circuit components, basic DC and AC circuit analysis techniques, transformers and electric motors, the capability to use abstractions to analyze and design simple electronic circuits. 11. Course objective: Students must demonstrate the ability to:

1. Clarify the principals of electrical. 2. Clarify the main electrical laws. 3. Clarify how to apply these principals practically.

12. Student's obligation o Class attendance is important, and attendance will be taken every lecture. o The student submits a weekly report about what have done in the Lab section. For examination, there are semester exam and final exam for the practical and the theory parts. During the class hours there will be some quizzes.

13. Forms of teaching • Theory: Data show, power point, white board, seminar, pictures • Laboratory practice: testing on different theories of electrical circuit.

15. Student learning outcome:

Demonstrate the ability to obtain appropriate service information on electrical circuit construction.

Be able to understand the function and applicability of various type of machine. Basic calculation on electric machines (Basic Electrical Engineering, AC motor, DC

Directorate of Quality Assurance and Accreditation بھ ڕێوه بھ رایھ تی دڵنیایی جۆری ومتمانھ بھ خشین of 12


motor, transformers) works performance.

16. Course Reading List and References‌:

1. Electrical Technology, by B.L.Theraja 2. Introduction Circuit Analysis, by Robert L. Boylestad. 3. Electrical Science, by K.C. Jain 4. Electrical Engineering, by Giorgio Rizzoni. 5. Elements of Engineering Electromagnetic, by Rao 6. Basic circuits (A.M.F.Brooks).pergaman press. 7. Introduction to Electric Circuits (M.Romanwltz) John Willey. 8. Basic Electrical Engineering (Fitzgerald &Rlgginbothan). Mc-Graw-Hill. 9. Electrical Machine, by S. N. Ali 10. Semiconductor devices by S. M. Sze

17. The Topics: Theoretical:

Week Syllabus description No. of Hours

1. Electrical quantities and units, symbol of electrical quantities and the symbol of their units.. Defining the units of voltage, current and resistance and writing their equations.

1

2. Ohm's Law, defining the Ohm's Law, drawing the relationship between the potential difference (V) to the current (I), the equation of Ohm's Law, finding the slop. Solving examples

1

3. Types of connecting resistances, connecting resistances in series and parallel, finding the total resistances, voltages, currents and power. The equations of voltage divider rule. Solving examples.

1

4. AC voltage generation Magnetic force and magnetic circuits 1

5. Electromagnetism, Faraday’s law, Lenz’s law 1

6. Transformer - Construction and Theory Operation 1

7. Classification of Electrical Transformer - Single phase transformer - 1

8. 9. Equivalent circuit Transformer. 1

10. Losses and efficiency of Transformer. 1

11. Parallel connection of single phase transformer. 1

12. Three-phase transformer, Construction, Equivalent Circuit 1



13. parallel connection of three phase transformer and type of cooling 1

14. Three phase induction motors – Construction -Characteristics 1

15. Three-phase-induction-motors-operating-principle 1

16. Starting methods of operation Induction motors. 1

17. Single-phase motors - Construction -Characteristics 1

18. Single-phase motors - Operating-principle 1

19. Types of Single Phase Induction Motors 1

20 Type of speed control induction-motors (V, F,V/F) . 1

21. Faults and methods of repair 1

22.23 Electrical stations (Protection devices ,MCB,MCCB ,CT,VT) 1

24.25. Control systems - Manual and automatic control type of solenoid and valve.

1

26.27. Electrical equipment for petroleum industry, Electrical apparatus that is not suitable for ignition or explosion 1

28. Advantages of distributing electrical power to areas exposed to explosion risk, Hazardous zoning 1

29. Characteristics and distribution plan of power at pumping stations on pipelines and solenoid valve. 1

30. Advantages and arrangements of electric feeding in oil and gas refineries 1

18. Practical Topics:

Week no Syllabus description No. of Hours

1. Lab definition and laboratory equipment ,Defining the working system in laboratory and how to do the report And using the apparatus

2

2. Using multi-meter (Amp, volt, ohm, etc.) and Using (DC) power supply.

2

3. Verification the Ohm's Law practically. 2



4. Connecting resistances in series and parallel. Multifarious exercises.

2

5. Effect of temperature on material resistance 2

6. Load test of single phase transformer with resistive load. 2

7. Open circuit test single phase transformer. 2

8. Short circuit of single phase transformer 2

9 parallel connection of single phase transformer 2

10. parallel connection of three phase transformer 2

11. Open circuit test three phase Induction motors

12. Block rotor test of three phase Induction motors 2

13. Speed and torque three Phase Induction Motors 2

14. Speed and torque single Phase Induction Motors 2

15. Internal and external characteristics single-phase Induction motors 2

16.17. Starting method of three phase Induction motors Delta-star, Auto transformer ,soft starter

2

18.19. Speed control of Induction three-phase motor 2

20.21.22.24.25.26.

Single-phase and three phase motors re-winding 2



27.28. Controlling motorize valve. 2

29.30. Qualifying of electrical control panels(contactor, CT, VT, solenoid, pressure switch, Level switch mechanical and electrical )

2

19.Examinations: Q1/A) Define the following: (The Ohm’s Law, Power, Frequency, Permeability, Faraday’s Law)

B) From the equation below i =100 Sin 471 t Find: 1- Im 2- IR.M.S 3- i at( t = 2msec)

Q2/A) Choose the one alternative that best completes the statement or answers the question 1- A kilowatt × hour is a unit of a power b force c. current d. energy 2- A 5 ohm and a 2 ohm resistor are connected in parallel. What is the total resistance? a 10

7 Ω

b 710

Ω

c 106

Ω

d 610

Ω 3-Electric motors works on principle of a capacitors b friction c couple d torque 4- Which of the following is an example of a passive component? a Diode b Transistor c Integrated Circuit d Resistor e All of the above 5- In transformer primary coil is connected to

a Ac source b Dc source



c resistor d inductor

B) 3-phase, 500 kVA, 6000V/400V, 50Hz, delta-star connected transformer

is delivering 300 kW, at 0.8 pf lagging to a balanced 3-phase load connected to the LV side with HV side supplied from 6000 V, 3- phase supply. Calculate the line and winding currents in both the sides. Assume the transformer to be ideal. Q3/ A) Steel circle has length l=(0.47)m and area(4×10 ⁻4 ) m2 , n of turn(60), the magnetic field inside the solenoid is given(500)µwb , Magnetic Field Intensity (1500)(A-T)/m,

) 370= r μ, -7 10Xπ 4= 0μ Permeability( Find : :

1) The Magnetic Field Density (B) 2) Current( I) 3) Reluctance (R) 4) Magnetic Field Intensity (H) 5) Inductance (L)

B) What are the various methods of speed control in three phase induction motors? Q4/A) Explain the work of a control solenoid valve and types of operation? B) A 3Phase, 50Hz 6pole induction motor has a full load percentage

slip of 3% find :

1- Synchronous speed

2- Actual Speed

Answer:

Q1/A) The Ohm’s Law The potential difference across a conductor is directly proportional to the current flowing through the conductor, the temperature of the conductor remaining constant. The constant of proportionality is R, the resistance.



Power Power is defined as the work done per unit time. Unit: Watts (W). Frequency ( f ) is the number of cycles that a sine wave completes in one second. f = 1/T Permeability Is the ability of a material to conduct flux.

Faraday’s Law The amount of voltage emf, induced across a coil is proportional to the product of the number of turns in the coil times the rate of change of the magnetic flux.

B) Solution: i=Im Sin wt 1- Im =100A 2-IR.M.S =0.707Im IR.M.S = 0.707×100 IR.M.S = 70.7A 3- i =100 Sin( 471 ×2×10-3×57.3 ) i =100 Sin53.9 i=100× 0.808 i=80.8 A ------------------------------------------------------------------------------------ Q2/A)

1. d 2. a 3. d 4. e 5. a

B) Solution First note that it is not a bank of single phase transformers. In fact it is a single unit of 3-phase transformer with the name plate rating as 500 kVA, 6000 V/400 V, 50Hz, delta-star connected 3- phase transformer. 500 kVA represents the total kVA and voltages specified are always line to line. Similarly unless otherwise specified, kW rating of a 3-phase load is the total kW absorbed by the load. The



connection diagram is shown in figure.

----------------------------------------------------------------------------------



Q3/A)

B) (i) Control from stator side 1. By changing the supply frequency 2. By changing the number of stator poles 3. By changing the supply voltage (ii) Control from rotor side 1. By inserting resistance in rotor circuit 2. By various ways of cascade connection 3. By injecting EMFs in the rotor circuit. --------------------------------------------------------------------- Q4/A)



B) A solenoid valve is an electromechanical actuated valve to control the flow of liquids and gases. Solenoid valves are amongst the most used components in gas and liquid circuits. The number of applications is almost endless. Some examples of the use of solenoid valves include heating systems, compressed air technology, industrial automation, swimming pools, sprinkler systems, washing machines, dental equipment, car wash systems and irrigation systems

Type of operation


https://tameson.com/central-heating.html

https://tameson.com/compressed-air-valves.html

https://tameson.com/car-wash.html

https://tameson.com/irrigation.html


20. Extra notes: I feel we need to spend more time, we will not have enough time to go through the topics in detail,it will be better to increase the theoretical hours to make more imagination about this subject

21. Peer review This course book is reviewed by (Abubakir Aziz Ahmed). The course book

assessed and approved all content of the Electrical Petroleum Equipment subject as

she admitted the course book well organized and is almost covered the several terms

of Electrical Petroleum Equipment aspects. The elements and fields filled in

appropriate way which is acceptable.

Abubakir Aziz Ahmed M.s.c Electrical engineering


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