kw Protective Relaying Training System
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1 kw Protective Relaying Training System LabVolt Series Datasheet Festo Didactic en 220 V - 50 Hz 02/2017
2 Table of Contents General Description 2 Features & Benefits 3 List of Available Training Systems 3 Additional Equipment Required to Perform the Exercises 3 Optional Equipment 3 Available Training Systems 4 Equipment Description 10 General Description The 0.2 kw Protective Relaying Training System is a complete program that extends training in protective relaying beyond the operation and calibrations of individual relays into broader circuit applications. The program provides hands-on training at the system level in Generator Protection, Transformer Protection, and Induction Motor Protection. The 0.2 kw Protective Relaying Training System consists of several modules, which can be divided into five groups: Common Electrical Modules, Power System Modules (Series 3700), Protective Relaying Control Station, Protective Relays (Series 3800), and Additional and Optional Equipment. These modules are described in detail below: Common Electrical Modules Power supply, synchronous generator, induction motor, prime mover / dynamometer, resistive loads, voltmeters, ammeters, and others. Most of these modules are part of the 0.2 kw ElectroMechanical System (EMS), 8001 or Power System Modules, Series 3700 Modules specially designed for training in the protective relaying area, including current transformers, voltage transformers, power transformers, source impedances, a transmission grid, and others. These modules are designed to be installed in an EMS workstation. Protective Relaying Control Station A mobile rack for protective relay operation, including a dc power supply, dc control relays for system studies, and an interconnection panel to facilitate connection of the protective relays to the system to be protected. Protective Relays, Series 3800 Selection of protective relays. Each relay is mounted on a metal panel which facilitates relay installation in the Protective Relaying Control Station. Each relay panel is equipped with fault switches that allow fault insertion for troubleshooting at the system level. The following types of protective relays are available: undercurrent/overcurrent, undervoltage/overvoltage, synchronism check, underfrequency/over-frequency, phase balance, phase sequence, reverse power, and power factor. Additional and Optional Equipment Various modules, such as distribution busses, a ring bus, transmission lines, distribution transformers, protective relays, and reactive loads are available. These modules can be added to the basic 0.2 kw Protective Relaying Training System to allow the instructor to create more elaborate hands-on exercises. The 0.2 kw Protective Relaying Training System courseware consists of a student manual and an instructor guide. The student manual is divided into several units, each consisting of a series of hands-on exercises dealing with one of the fields of protective relaying mentioned above. Each exercise provides a clearly stated objective, a discussion, textbook references, a summary of the exercise procedure, a detailed exercise procedure, a conclusion, and a set of review questions. A ten-question test at the end of each unit allows the student to verify what was learned in the unit. Completion of some exercises in the student manual requires a digital storage oscilloscope and a digital multimeter, which must be purchased separately. 2 Festo Didactic
3 The instructor guide contains the practical results as well as the answers for each hands-on exercise in the student manual. It also contains the answers to the unit test questions in the student manual. The reference textbook provides more elaborate discussions of the theory presented in the student manual. The prerequisites for the 0.2 kw Protective Relaying Training System include: completion of a course in relay operation and calibration, and completion of a course in electric power technology that covers electric power generation, power transformers, and induction motors. The modular structure of the 0.2 kw Protective Relaying Training System, together with the subdivision of student manuals into topical units, enables instructors to choose equipment that matches their budgets while progressively enhancing their systems over time. For power utility users, it is possible to combine their own protective relays with a selection of modules from the 0.2 kw Protective Relaying Training System to obtain equipment setups that correspond to existing one-line and three-line diagrams. Features & Benefits Modular, industrial-grade system approach allowing: selection of areas of interest for study, and tailoring to special training needs equipment selection to match budgets setup of complete power systems/generators feeding various devices such as transformers, transmission lines, and others progressive system enhancement with no replication of equipment Use of many modules from other well-known Electromechanical System (EMS) Wide range of protective relays: undercurrent/overcurrent, undervoltage/overvoltage, synchronism check, underfrequency/overfrequency, phase balance, phase sequence, reverse power, and power factor. Fault insertion capability for troubleshooting at the system level Very safe operation and experimentation Ability of power utility customers to combine their own protective relays with the 0.2 kw Protective Relaying Training System to obtain equipment setups that correspond to existing one-line and three-line diagrams Comprehensive curriculum with detailed lab procedures, exercises, theory, tests, etc. List of Available Training Systems kw Protective Relaying Training System kw Protective Relaying Training System Add-On 8007-A5 Additional Equipment Required to Perform the Exercises 1 1 Dual-Trace Digital Storage Oscilloscope Digital Multimeter Optional Equipment 1 Distribution Transformers Used in one exercise of the courseware. Festo Didactic 3
4 1 Ring Bus Distribution Bus 'A' Distribution Bus 'B' Transmission Grid 'B' Faultable Transmission Line Protective Relay Rack Single-Phase Under/Over Current Relay Single-Phase Under/Over Voltage Relay Phase Sequence Relay Workstation Inductive Load Three-Phase Transmission Line Capacitive Load Three-Phase Power-Factor Meter, 2kW Frequency Meter Three-Phase Full-Voltage Starter Available Training Systems 0.2 kw Protective Relaying Training System The 0.2 kw Protective Relaying Training System extends training in protective relaying beyond the operation and calibrations of individual relays into broader circuit applications. The system provides hands-on training in generator protection, transformer protection, and induction motor protection. The complete system consists of five groups of modules which include Common Electrical Modules, Power System Modules (3700 Series), Protective Relaying Control Station, Protective Relays (3800 Series), and Additional and Optional Equipment. Courseware consists of a Student Manual containing hands-on exercises in each of the module topics along with unit tests, an Instructor's Guide, and a reference textbook. The program requires completion of courses in relay operation and calibration, and electric power technology with coverage of electric power generation, power transformers, and induction motors. For power utility users, it is possible to combine industrial grade protective relays with a selection of modules from the Protective Relaying Training System to obtain equipment setups that correspond to existing one-line and three-line diagrams. 2 Can replace the Mobile Workstation, Festo Didactic
5 Features & Benefits Modular system approach allows: Selection of areas of interest for study. Equipment selection to match budgets. Set-up of complete power systems/generators feeding various devices such as transformers, transmission lines, and others. Progressive system enhancement. Use of many modules from the tried and proven LabVolt Electromechanical System (EMS). Fault-insertion capability for troubleshooting at the system level. All device connections are terminated with 4-mm safety banana jacks mounted on the module front panels. Ability of power utility customers to combine their own protective relays with the 0.2-kW Protective Relaying Training System to obtain equipment set-ups that correspond to existing one-line and three-line diagrams. List of Equipment 1 Source Impedance Current Transformers Current Transformers Voltage Transformers Faultable Transformers Transmission Grid 'A' Interconnection Module Universal Fault Module Protective Relaying Control Station Three-Phase Over Current Relay AC/DC Current Sensitive Relay Three-Phase Under/Over Voltage Relay AC/DC Voltage Sensitive Relay Synchro-Check Relay Under/Over Frequency Relay Phase Balance/Sequence Relay Reverse Power Relay Motor Power-Factor Relay Mobile Workstation Three-Module Workstation Storage Shelves Four-Pole Squirrel-Cage Induction Motor Synchronous Motor/Generator Resistive Load DC Voltmeter/Ammeter AC Ammeter AC Voltmeter Wattmeter / Varmeter Synchronizing Module Power Supply Power Diodes Festo Didactic 5
6 1 Timing Belt Connection Lead Set Four-Quadrant Dynamometer/Power Supply 8960-B5 1 Inertia Wheel List of Manuals Manual Description Introduction to Protective Relaying (Student Manual) Introduction to Protective Relaying (Instructor Guide) Electric Power Technology Training Equipment (User Guide) E0 Table of Contents of the Manual(s) Introduction to Protective Relaying (Student Manual) ( ) 1 Generator Protection 1-1 Differential Protection of a Synchronous Generator 1-2 Reverse Power Protection of a Synchronous Generator 1-3 Rotor Earth Fault Protection of a Synchronous Generator 1-4 Loss-of-Excitation Protection of a Synchronous Generator 1-5 Overvoltage Protection of a Synchronous Generator 1-6 Overspeed Protection of a Synchronous Generator 1-7 Overcurrent Protection of a Synchronous Generator 1-8 Generator Synchronization 1-9 Synchronous Generator Protection Scheme 2 Transformer Protection 2-1 Transformer Magnetizing Inrush 2-2 Differential Protection of a Three-Phase Power Transformer 2-3 Restricted Earth Fault Protection of a Three-Phase Power Transformer 2-4 Overcurrent Protection of a Three-Phase Power Transformer 2-5 Three-Phase Power Transformer Protection Scheme 3 Induction Motor Protection 3-1 Stator-Winding Fault Protection 3-2 Overcurrent Protection of a Three-Phase Induction Motor 3-3 Phase Reversal Protection of a Three-Phase Induction Motor 3-4 Phase Unbalance and Undervoltage Protection of a Three-Phase Induction Motor 3-5 Stall Protection of an Induction Motor 3-6 Mechanical Overload/Underload Protection of a Three-Phase Induction Motor Electric Power Technology Training Equipment (User Guide) (38486-E0) 1 General Safety Recommendations 2 System Power Requirements 3 Quick Start Installation Guide 4 Equipment Installation 5 Modules Handling, Installation, and Removal 6 Equipment Maintenance A Connection of the Power Supply to the AC Power Network 6 Festo Didactic
7 B Description,, and Operation of the EMS Modules Additional Equipment Required to Perform the Exercises 1 3 Training on Introduction to Protective Relaying, 1.4 days TF Optional Manual(s) kW Protective Relaying Training System (Manuals on CD-ROM) A0 System System Requirements Maximum Current Typical Current AC Power Network Installation 10 A 1 A per student group AC Power Network Connector NEMA L22-20 Intended Location 3 phases (220/380 V 50 Hz), star (wye) configuration including neutral and ground wires, protected by a 20 A circuit breaker On the floor (stands on casters, except for the Storage Cabinet) 1980 x 3000 x 800 mm (78 x x 31.5 in) 0.2 kw Protective Relaying Training System Add-On 8007-A5 TBE This equipment is an add-on to the 0.2 kw Protective Relaying Training System, It consists of a Source Impedance, a Current Transformer, a Voltage Transformer, a Faultable Transformer, a Transmission Grid 'A', an Interconnected Module, a Universal Fault Module, a Protective Relaying Control Station, a Three- Phase Over Current Relay, a AC/DC Current Sensitive Relay, a Three-Phase Under/Over Voltage Relay, an AC/DC Voltage Sensitive Relay, a Synchro-Check Relay, an Under/Over Frequency Relay, a Phase Balance/Sequence Relay, a Reverse Power Relay, a Motor Power-Factore Relay, a Three-Module Workstation, a Resistive Load, a Three-Phase Wattmeter/Varmeter, a Power Diodes module, Connection Leads, a Four-Quadrant Dynamometer/Power Supply, and an Inertia Wheel. Features & Benefits Modular system approach allows: Selection of areas of interest for study. Equipment selection to match budgets. 3 Optional product training. Price provided on demand. For details and options, contact services.didactic@festo.com. Festo Didactic 7
8 Set-up of complete power systems/generators feeding various devices such as transformers, transmission lines, and others. Progressive system enhancement. Use of many modules from the tried and proven LabVolt Electromechanical System (EMS). Fault-insertion capability for troubleshooting at the system level. All device connections are terminated with 4-mm safety banana jacks mounted on the module front panels. Ability of power utility customers to combine their own protective relays with the 0.2-kW Protective Relaying Training System to obtain equipment set-ups that correspond to existing one-line and three-line diagrams. List of Equipment 1 Source Impedance Current Transformers Current Transformers Voltage Transformers Faultable Transformers Transmission Grid 'A' Interconnection Module Universal Fault Module Protective Relaying Control Station Three-Phase Over Current Relay AC/DC Current Sensitive Relay Three-Phase Under/Over Voltage Relay AC/DC Voltage Sensitive Relay Synchro-Check Relay Under/Over Frequency Relay Phase Balance/Sequence Relay Reverse Power Relay Motor Power-Factor Relay Three-Module Workstation Resistive Load Wattmeter / Varmeter Power Diodes Connection Lead Set 8951-D0 1 Four-Quadrant Dynamometer/Power Supply 8960-B5 1 Inertia Wheel List of Manuals Manual Description Introduction to Protective Relaying (Student Manual) Introduction to Protective Relaying (Instructor Guide) Electric Power Technology Training Equipment (User Guide) E0 Table of Contents of the Manual(s) Introduction to Protective Relaying (Student Manual) ( ) 8 Festo Didactic
9 1 Generator Protection 1-1 Differential Protection of a Synchronous Generator 1-2 Reverse Power Protection of a Synchronous Generator 1-3 Rotor Earth Fault Protection of a Synchronous Generator 1-4 Loss-of-Excitation Protection of a Synchronous Generator 1-5 Overvoltage Protection of a Synchronous Generator 1-6 Overspeed Protection of a Synchronous Generator 1-7 Overcurrent Protection of a Synchronous Generator 1-8 Generator Synchronization 1-9 Synchronous Generator Protection Scheme 2 Transformer Protection 2-1 Transformer Magnetizing Inrush 2-2 Differential Protection of a Three-Phase Power Transformer 2-3 Restricted Earth Fault Protection of a Three-Phase Power Transformer 2-4 Overcurrent Protection of a Three-Phase Power Transformer 2-5 Three-Phase Power Transformer Protection Scheme 3 Induction Motor Protection 3-1 Stator-Winding Fault Protection 3-2 Overcurrent Protection of a Three-Phase Induction Motor 3-3 Phase Reversal Protection of a Three-Phase Induction Motor 3-4 Phase Unbalance and Undervoltage Protection of a Three-Phase Induction Motor 3-5 Stall Protection of an Induction Motor 3-6 Mechanical Overload/Underload Protection of a Three-Phase Induction Motor Electric Power Technology Training Equipment (User Guide) (38486-E0) 1 General Safety Recommendations 2 System Power Requirements 3 Quick Start Installation Guide 4 Equipment Installation 5 Modules Handling, Installation, and Removal 6 Equipment Maintenance A Connection of the Power Supply to the AC Power Network B Description,, and Operation of the EMS Modules Additional Equipment Required to Perform the Exercises 1 4 Training on Introduction to Protective Relaying, 1.4 days TF System System Requirements Maximum Current Typical Current AC Power Network Installation 10 A 1 A per student group AC Power Network Connector NEMA L phases (220/380 V 50 Hz), star (wye) configuration including neutral and ground wires, protected by a 20 A circuit breaker 4 Optional product training. Price provided on demand. For details and options, contact services.didactic@festo.com. Festo Didactic 9
10 Intended Location Installed in the workstation of the 0.2 kw Protective Relaying Training System, Equipment Description Source Impedance x 546 x 711 mm (74.5 x 21.5 x 28.0 in) TBE The Source Impedance consists of three inductors, one for each phase of a three-phase AC power network, installed in a half-height EMS module. An additional resistor, of small resistance value, is connected in series with each inductor to keep the reactance-resistance (X/R) ratio of the source impedance close to that of the synchronous generator. The Source Impedance module is designed to limit the short-circuit current drawn from the ac power source when response of protective relays is being tested. Ratings Impedance 137 Ω, 84 Nominal Phase Current Line-to-Line Voltage 0.5 A 380 V 155 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 9.3 kg (20.5 lb) Current Transformers The Current Transformers consist of a set of six instrument-type current transformers installed in a half-height EMS module. Each transformer is equipped with a switch, mounted on the front panel, that allows the secondary winding to be shortcircuited. Current transformer ratios have been carefully selected to match the power equipment with the protective devices. CT1 to CT6 Current Ratio Primary Impedance 0.5:5 A 13.7 Ω 10 Festo Didactic
11 Apparent Power 5 VA Accuracy ±2% 155 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 13.0 kg (28.6 lb) Current Transformers protective devices. The Current Transformers consists of a set of six instrument-type current transformers installed in a half-height EMS module. Each transformer is equipped with a switch, mounted on the front panel, that allows the secondary winding to be shortcircuited. Current transformer ratios have been carefully selected to match the power equipment with the CT1 to CT3 Current Ratio 1:5 A Primary Impedance 2.7 Ω Apparent Power 5 VA Accuracy ±2% CT4 to CT6 Current Ratio 2.5:5 A Primary Impedance 0.65 Ω Apparent Power 5 VA Accuracy ±2% 155 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 13.0 kg (28.6 lb) Voltage Transformers The Voltage Transformers consists of a set of six instrument-type voltage transformers installed in a half-height EMS module. Voltage transformer ratios have been carefully selected to match the power equipment with the protective devices. VT1 to VT6 Voltage Ratio Apparent Power 380:120 V 8 VA Festo Didactic 11
12 Accuracy ±2% 155 x 287 x 440 mm (6.1 x 11.3 x 17.3 in) 10.2 kg (22.4 lb) Faultable Transformers TheFaultable Transformers consists of three single-phase power transformers installed in a full-height EMS module. Each transformer has multiple primary and secondary windings. Fault taps are wired to switches or banana jacks on the front panel for insertion of winding-to-earth5 and winding-towinding faults via current-limiting resistors. A current sensor is provided to observe the waveform of the primary current on transformer magnetizing inrush. T1 to T3 Primary Voltag Secondary Voltage Apparent Power Faults Fault Insertion T1 and T3 T2 Current Sensor Current Resistance 220/440 V 22/220/440 V 120 VA 3 (primary-earth, secondary-earth, primary-secondary) Through switches Remote 3 A 0.2 Ω 308 x 287 x 440 mm (12.1 x 11.5 x 17.3 in) 21.5 kg (47.3 lb) 12 Festo Didactic
13 Transmission Grid 'A' The Transmission Grid 'A' consists of a transmission grid installed in a fullheight EMS module. This module is used to open and close an ac power circuit under normal conditions or to interrupt this circuit under fault or abnormal situations. It can also be used for the connection of EMS motor/ generator sets and loads as well as the protective relaying equipment for transmission grid protection. The transmission grid is opened at intervals by eleven three-pole relays with normally open (NO) contacts. These relays can be operated by switches located on the module front panel or through the action of dc control relays or protective relays as part of a protection scheme. The module has a dc bus, energized from an external dc power supply, to distribute power to the relay coils. Interconnection Module The Interconnection Module consists of three sets of twelve 4 mm safety banana jacks and three multiplecontact connectors mounted on the front panel of a full-height EMS module. Three interconnection cables, supplied with the module, are used to connect the banana jacks on the Interconnection Module to the banana jacks on the interconnection panel of the Protective Relaying Control Station, 3806, via the multiple contact connectors. This provides an efficient means of interconnecting the electrical power system (EMS system) to the relays installed in the protective relaying control station. Ratings Voltage Current 450 V 5 A 308 x 287 x 440 mm (12.1 x 11.5 x 17.3 in) 6.9 kg (15.2 lb) Festo Didactic 13
14 Universal Fault Module The Universal Fault Module consists of control relays, adjustable time delay relays, contactors, a solid-state relay (SSR), current-limiting resistors, and an inductor, all installed in a fullheight EMS module. These components allow faults to be inserted into the electrical power system (EMS system) for training in protective relaying applications. Typical faults include line-to-line and line-to-earth resistive faults as well as resistive and inductive faults. Winding Inductive Fault Nominal Voltage 380 V Apparent Power 100 VA Line-to-Line Fault Type Resistive Resistor Ratings 500 Ω, 500 W Line-to-Earth Fault Type Resistive Resistor Ratings 200 Ω, 500 W Shunt Resistance 100 Ω Power 100 W 10 A at 120 V ac 10 A at 240 V ac Relay K1 Contact Ratings 25 A at 250 V ac Solid-State Relay (SSR) Maximum Current 25 A ac Maximum Voltage 250 V ac Relay TD1 Time Delay Range 0.1 to 3 s Relay SST1 Time Delay Range 0.1 to 10 s Relay SST2 Time Delay Range 0.6 to 60 s 308 x 287 x 440 mm (12.1 x 11.5 x 17.3 in) 12.4 kg (27.3 lb) 14 Festo Didactic
15 Protective Relaying Control Station power supply is used to energize the relay coils. The Protective Relaying Control Station is a standard 48 cm (19 in) rack, mounted on castors, that forms the basis of a typical protective relaying control station. Two sets of dc control relays, a dc power supply, and an interconnection panel are mounted on the rack. The two sets of dc control relays (six relays per set) allow basic contacts of protective relays (either normally open or normally closed contacts) to be converted into multiple normally open (NO) / normally closed (NC) contacts to actuate ac circuit breakers (contactors) in the electrical power system. Two of the dc control relays have adjustable time delay. The dc The interconnection panel consists of three sets of twelve 4 mm safety banana jacks mounted on a standard 48 cm (19 in) panel. Three multiple contact connectors, also mounted on the panel, allow connection of cables from the Interconnection Module, A set of metal rails and three standard 48 cm (19 in) blank panels are supplied with the Protective Relaying Control Station. The metal rails are used to mount the protective relays in the control station. Customers can use the three blank panels for mounting their own protective relays in the control station. DC Power Supply Input Voltage Input Current Output Voltage Output Current Control Relays 1 Coil Voltage Contact Ratings Control Relays 2 (CR1 to CR4) Coil Voltage Contact Ratings Control Relays 2 (TD1) Coil Voltage Contact Ratings Time Delay Range Control Relays 2 (TD2) Coil Voltage Contact Ratings Time Delay Range Interconnection Panel Voltage 220 V 50 Hz 3.5 A 120 V 5 A 120 V dc 3 A at 150 V dc; 10 A at 240 V ac 120 V dc 3 A at 150 V dc; 10 A at 240 V ac 120 V dc 0.5 A at 120 V dc; 10 A at 240 V ac 0.1 to 10 s 120 V dc 0.5 A at 120 V dc; 10 A at 240 V ac 0.6 to 60 s 450 V Festo Didactic 15
16 Current 15 A 1890 x 546 x 711 mm (74.5 x 21.5 x 28.0 in) kg (236.1 lb) Three-Phase Over Current Relay The Three-Phase Over Current Relay is a protective relay that is sensitive to overcurrent conditions in three-phase power systems. It trips when the current in any one of the three phases exceeds the current setpoint. Current setpoint and time delay adjustments are provided along with two sets of contacts. Ratings Nominal Input Current Maximum Input Current Current Setpoint Range Time Delay Range Output Contacts Auxiliary Supply Voltage Burden 5 A ac, each phase 200% of nominal input current 40% to 120% of nominal input current 0.5 to 10 s DPDT: 0.5 A at 120 V dc; 5 A at 240 V ac 220 V ac 4 VA 203 x 229 x 184 mm (8.0 x 9.0 x 7.2 in) 1.5 kg (3.3 lb) 16 Festo Didactic
17 AC/DC Current Sensitive Relay The AC/DC Current Sensitive Relay is a protective relay that is sensitive to either alternating current (ac) or direct current (ac). It can be set to respond to either undercurrent or overcurrent conditions. Current setpoint and hysteresis adjustments, ac/dc and undercurrent/overcurrent selection switches are provided along with a single set of contacts. Ratings Current Metering Ranges Maximum Input Current Current Setpoint Range Hysteresis Range Output Contacts Auxiliary Supply Voltage Burden 4 to 60 ma; 40 to 600 ma; 0.4 to 6 A 200 ma for the 4-60 ma range800 ma for the ma range8 A for the A range same as selected current metering range 5% to 50% of selected current metering range SPDT: 0.5 A at 120 V dc; 8 A at 250 V ac 220 V ac 2.5 VA 203 x 229 x 171 mm (8.0 x 9.0 x 6.7 in) 1.0 kg (2.2 lb) Three-Phase Under/Over Voltage Relay Festo Didactic 17
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