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Electric Power Systems Lab
Abstract

The electrical power systems laboratory at the Palestine Technical University Kadoorie designed to directly apply theory learned in lectures to devices that will be studied in the laboratory. The Lab focuses on all aspects of electrical power systems: power generation, transmission and distribution lines, protection systems, electric power management systems and a wide range of electrical measurement systems. Research projects carried out in this laboratory include generation, transmission and distribution of electrical energy and all facilities that guarantee the safe supply of electrical energy. In addition to the monitoring, control and supervision systems that are studied and followed in this laboratory.

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Objectives

The laboratory course is intended to provide practical understanding of power system operation, control and protection. The main goal is to enable students to apply and test theoretical knowledge they mastered in previous years of studies. The laboratory course enables them to develop practical skills in various fields of power engineering in a controlled environment.

The Laboratory covers all phases for the:

  • electrical power generation;

  • electrical power distribution, transformers and high voltage lines (with simulator);

  • use of the power (Load);

  • power factor correction, with batteries of manual or automatic insertion batteries (typical of power factor correction carried out in the final user);

  •  Measurement instruments typical of this field;

  •  Protection devices specific of this field.
    All protection and control devices of the electrical machines are exactly equal to those installed in the industrial units. So, the sequences of control maneuvers in the control stations are exactly equal to those necessary in the industrial units.

Lab Apparatus
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MGS-3/EV 
Synchronous generator-motor set

The generating set consists of a common base, a AC motor (it simulates the turbine or the endothermic motor) and a synchronous generator with rotating inductor coupled between them.

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GCB-3/EV 
Generator Control Board

The Control Module contains all power supply and control devices of the generation set mod. MSG-3/EV and enables to learn and experiment, with real industrial components, on the power production and the related protection systems.

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PCB-3/EV 
Generator Parallel Board

The module for the parallel of an alternator with a second alternator or with the public power network contains the control devices of the triads of voltage and the actuators for the parallel operation It enables to learn and experiment, with real industrial  components, on the methods for setting the alternators in parallel. The different electrical devices installed, partially connected between them and to safety terminals, become operative with extremely simple and quick operations and give the possibility to change the circuit at the user’s need (to include or exclude the devices)

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AVR-E/EV 
Automatic Voltage Regulator

This electronic device makes possible the feeding of the alternators excitation, so to keep constant voltage output with great precision.

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AMT-3/EV 
Variable power supply

a unit providing variable AC and DC inglephase/three-phase voltages, It contains the three-phase voltage variator and the protection devices against overcurrents. It is the natural expansion of the base unit which provides its power supply protected with high sensitivity E.L.C.B. and the emergency halting device. If used autonomously it must be connected to a voltage source protected with high sensitivity E.L.C.B.

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UAT/EV 
Fixed three phase power supply

This power supply unit represents maximum flexibility for the implementation of experimental programs for electrical systems. Provides power for the realization of the Sperim program. of electrical systems together with the vertical frame mod. TSI / EV which supports the various modules.

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SEL-1/EV 
Power transmission lines

The equipment reproduces two high voltage transmission lines with the possibility of varying the parameters. It enables to learn and test the characteristics and management of high voltage distribution networks, with small scale components.

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P-14A/EV
Power transformer

The power transmission with insulated lines (IT system) is completed with a three-phase transformer with different possible connections with the primary and secondary circuits.

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AZ-VIP-5/EV
Digital power analyzer

DIGITAL INSTRUMENTS FOR ELECTRICAL

MEASUREMENTS

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DBB-2E/EV
Advanced Double Bus Bar Systems

Transmission and distribution of electric power is usually carried out over high-voltage (HV) and medium-voltage (MV) lines.

The Panel includes:

  • Two HV lines (featuring concentrated parameters): a MAIN line and an AUXILIARY line

  • Relays to protect the lines and detect their conditions

  • A PLC to manage the logic of the switches of these lines, and to control the Generation Panel PGP-1/EV.

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HDPR/EV
high speed distance protection relay 

The Impedance / Distance Relay (IR) is used in low, medium and high voltage lines, being one of the most important protection devices against shortcircuits. It is mainly used when the current overload relays do not provide adequate protection; the Impedance / Distance relays can work even when the short-circuit current is low and the overload relays could not operate safely. Additionally, the speed operation of the IR is independent from the short-circuit current value. Basically, it is a relay that senses the current and voltage of the protected line and calculates its impedance Z.

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SR-21/EV
Isolation 
Transformer

Three-phase isolation transformer (to be used with the Module SR-16)

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SR-20/EV
HV power transmission line.

Line Distance simulator (to be used with the Module SR-16)

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SRT-1/EV
Set of protection relays for high-voltage and low-voltage networks

This system has been designed to enable students to connect and apply a wide range of electric, electronic protection relays with circuits of increasing complexity, besides verifying their characteristics.

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C-PF/EV
AUTOMATIC POWER FACTOR CORRECTION SYSTEMS

This panel is designed to test industrial systems with electronic devices for control of power factor correction in low-voltage power consuming devices (voltage of 400 V).

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RPC-1/EV
Reactive power compensation trainer

The Trainer has been developed for the theoretical-practical study of the different components, circuits and measurements of RPC techniques. All the proposed components are real and totally operational. Instruments and electronic boards are of the most advanced available technology.

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PDG-R/EV
STUDY AND TESTING ON DISTRIBUTION SYSTEMS (NEUTRAL CONDUCTOR)

This panel can be used by teachers for their lessons and by students for an easy learning and testing the connection position of neutral conductor in low-voltage distribution systems.

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SEE-1/EV

Simulator of production, transmission and use of electric power

Simulation of a (thermoelectric or thermonuclear) power plant for the production of electric energy, relieved (when necessary, according to the energy demand) by a hydroelectric plant using the water jump between two basins.

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PRMCE-1/EV

MONITORING OF ELECTRIC PARAMETERS WITH DATA NETWORKS

Panel specifically designed for the measuring and monitoring of electrical parameters (including consumption of electrical energy) with SCADA networks.

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RL-2 / EV

VARIABLE LOADS

These loads are assembled in a painted tabletop metallic box with silk-screen-printed fore panel of aluminium alloy and graphic representation of components.

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RL-2k / EV

SINGLE-PHASE - THREE-PHASE R-L LOAD

5 steps of single-phase/three-phase active power and 5 steps of single-phase/three-phase inductive reactive power

Manual
By: Tareq FoQha
Click on the PDF icon to download the file
Videos
By: Tareq FoQha

Distance Relay Experiment

(Single line to ground fault through 20 ohm resistance at 75 km)

Transmission Line Under Single Line to Ground Fault

(Study the behavior of a power transmission line with insulated neutral in condition of ground fault)

Parallel operation of two synchronous generators

(Study the procedures for paralleling two synchronous generators)

Transmission Line Under No load condition

(To study the operation of a power Transmission line in no load condition) Ferranti Effect

Power Factor Correction - Manual Mode

Electrical Power Factor correction installation of a single and three-phase networks with low PF.

Transmission line with

compensated neutral conductor in condition of SLG fault

power transmission line with compensated neutral conductor (Peterson coil) in condition of ground fault.

Advanced Double Bus Bar System - Automatic Mode

-Simulate Main Line Failure
-Simulate Overloaded main/Aux line

Protection of Transmission line using SR14 - Differential Relay

Protection of Transmission line using SR1 - Overcurrent Relay 

Parallel Operation of Synchronous Generator with public main / infinite bus

(Study the procedures for paralleling synchronous generator with public main)

Transmission Line Performance Under Different Load Conditions

(Study the behavior of the Transmission Line Performance Under Different Load Conditions)

Simulator Of Production,

Distribution and use of Electric Energy

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