Single-phase transformer (Transformation ratio of single-phase transformer. Idling characteristics. Short-circuit characteristics. Characteristic U = f (I) single-phase transformer with resistive load. Operational characteristics of single-phase transformer with a resistive load. Determination of equalizing current caused by inequality of transformation ratios of parallel single-phase transformers. Effect caused by the inequality of short-circuit voltages of single-phase transformers operating in parallel)
Single-phase autotransformer (Transformation ratio. Short-circuit characteristics. Characteristic U = f (I) under resistive load)
Three-phase transformer (Idling characteristics. Short-circuit characteristics. Checking vector grouping of three-phase transformer. Confirmation of impossibility of parallel operation of three-phase transformers with different vector grouping)
DC generators with separate / shunt excitation (Idling of DC generator with separate excitation. Short-circuit characteristics of DC generator with separate excitation. Characteristics U = f (I), If = f (I) and U = f (I ) of DC generator with separate excitation. Characteristic U=f(I) of DC generator with shunt excitation)
DC motors with separate / parallel / series excitation (Electromechanical (speed) characteristics. Mechanical characteristics. Operational characteristics. Speed control by armature voltage changing. Speed control by changing additional resistance in the armature circuit. Speed control by field current change. Speed control motor with series excitation by shunting field winding. DC motor startup)
Three-phase induction generator (Power characteristics. Ideal idling characteristics. Operational characteristics)
Three-phase squirrel-cage induction motor (Idling characteristics. Short-circuit characteristics. Electromechanical (speed) characteristic. Mechanical characteristic. Operational characteristics. Speed control of three-phase squirrel-cage induction motor by stator voltage changing. Induction motor startup)
Mechanics of drives (Determination of inertia moment of electric drive by method of free run-out. Determination of mechanical characteristic of working mechanism. Drive speed as function of time during transient)
Electric drive using DC motor with separate (parallel, series) excitation (Determination of electromechanical and mechanical characteristics in motor, generator, and braking modes. Speed control by changing resistance in armature circuit of DC motor. Speed control by changing excitation current of DC motor. Speed ontrol by shunting field winding of DC motor with series excitation. Speed control by changing armature voltage DC motor. Armature current and speed as function of time during transient. Definition of energy parameters of electric drive with DC motor. Measuring body temperature of DC motor)
Electric drive using squirrel-cage induction motor (Electromechanical and mechanical characteristics in motor, generator, and braking modes. Speed control by match changing frequency and magnitude of stator voltage. Stator current and speed as function of time during transient. Definition of energy parameters of electric drive with induction motor. Measurement of body temperature of induction motor)
Open-loop control of electric drives (DC drive startup control in function of time (speed, EMF, armature current) and dynamic braking in function of time (speed, EMF). Induction squirrelcage motor control during direct-on-line startup, reverse and dynamic braking in function of time (plugging). Induction wound-rotor motor control during direct-on-line startup in function of time (speed, EMF, stator current), reverse and dynamic braking in function of time (speed, EMF). Synchronous motor control of startup and braking)
Closed-loop control of electric drives (“Thyristor converter - DC motor”. Control characteristics. Current control contour adjustment. Limiter adjustment. Speed control contour adjustment. Determination of static electromechanical and mechanical characteristics. “Frequency converter - induction motor”. Speed control contour adjustment. Determination of static electromechanical and mechanical characteristics)
Electromechanical unit with flywheel (DC machine, induction motor and angular displacement transducer)
Three-phase power supply
Single-phase thyristor converter
Frequency converter
Single-phase power supply
Three-pole breaker
Terminal
Active load
Excitation rheostat of DC machine
Linear reactor
Adjustable autotransformer
Rectifier
Rheostat
Connector
Module of digital signals input/output
Three-phase transformer group
Adjustable three-phase autotransformer
Regulators Module
Current-and-voltage sensors Module
Speed indicator
Two multimeters module
Voltammeter
Multifunctional electrical measuring instrument
Laboratory table with 2-section storage container and 2-level frame
Laboratory table with computer rack and pullout keyboard shelf and 2-level frame;
Laboratory table with storage container for wires and 2-level frame
Accessories Kit
Personal computer with SCADA software
Width х Depth х Height: 2730 х 850 х 1600 mm
Weight: ~200 kg
Power supply: 220 V / 50 Hz
Appliance Class: I
Basic Experiments Guide
