Specifications:

• Electrical Machine System can meet the requirements of the syllabus requirements such as "Motor Drag and Speed Regulation", "Motor and Drag Basic Experiment", "Electrical Science", "Motor and Transformer".
• The device has novel design, reasonable structure and luxurious appearance.
• It is suitable for new or expanded laboratories such as colleges, secondary specialized schools, vocational and technical colleges, etc.
• It provides ideal experimental equipment for setting up experimental courses quickly

Features

• Comprehensive strong: not only can finish "motor drag" experiments and also canfinish single, three-phase transformer experiment, still can expand electrical control
• technology experiment.
• Complete strong: the instrument, special power supply, motor and other experimentalunit and the connecting line are complete.
• Motor rail adopt the stainless steel, plate using 20 mm thick steel plate, the motorrunning noise small, never deformation, to ensure the long-term operation of theequipment.
• Use the "correction DC dynamometer" measuring prime mover output power,completely overcome the previous "eddy current dynamometer" dead zone, big error
• shortcoming. Supporting small motor through special design, its characteristics andparameters can simulate the small and medium-sized motor, students through theexperiment can deepen the understanding of the motor theory.
• Equipped with voltage type and current mode leakage protection, interphase, spaceoverload or short circuit monitoring automatic protection function by the single chip microcomputer.
• Setting with timer and alarm recorder, adapt to the laboratory open teaching, facilitateteacher manage and assess to experiment.

Technical

• Input power: three phase four wire 220V±10% 50Hz
• Working environment: temperature - 10 ~ + 40 relative humidity ? ? < 85% (25 ?)
• Installed capacity: < 1.5 KVA

Configuration

• Bench :Including the desktop, blue column, fascia, skeletal, yin and yang groove profiles, winding cabinets, boxes and other power supply parts and mounting screws, nuts, washers
• Power supply: General control switch, voltmeter, rotary switch, key switch, power indicator, timer and alarm recorder, available in single-phase AC power supply is adjustable and a fixed power supply DC24V
• 3DC measure instrument: AC voltmeter (AC0-450V), AC ammeter (AC0-3A)
• AC measurement instrument: Three-phase voltage regulator, the regulator knob, K4 terminals
• Three phase regulator: Digital voltmeter, rocker switches, potentiometers, K4 terminals to provide power for the armature and field excited DC machine
• Armature excitation power: Digital voltmeter, rocker switches, potentiometers, K4 terminals to provide power for the armature and field excited DC machine
• Light Box loading: Lamp base, lamp
• Change-over switch: Three-position switch, two-position switch
• Single phase transformer operate area: Three single-phase transformers, 12 K4 terminals
• Three phase transformer operate area: A three-phase transformer, 12 K4 terminals
• Resistance loading area: 6 sets of double sliding rheostat
• Motor group: A three-phase AC induction motor, a junction box,6 K4 terminals ,a compound excited DC motor , a junction box,6 K4 terminals ,a the encoder , a tachometer
• Power meter
• Power Factor meter

Training content

• DC motor experiment
• Know the experiment
• DC generator
• DC shunt motor
• DC motor start: string resistance start, step down start
• Method for changing steering of DC motor
• DC motor speed control characteristics experiment: change the string resistance of the armature circuit, the string resistance of the excitation circuit, reduce the armature voltage

Single-phase transformer experiment

• Single-phase transformer ratio K
• Single-phase transformer no-load experiment, measuring transformer no-load data IO, PO and UO.
• Single-phase transformer short-circuit experiment, measuring transformer short-circuit data UK, IK and RK.
• Single-phase transformer load test, measuring transformer load data UZ = f(IZ).

Three-phase transformer experiment

• Determination of the polarity of three-phase transformer windings
• Determination of three-phase transformer connection group

Asynchronous motor experiment

• Test of stator resistance of three-phase wound asynchronous motor
• Three-phase asynchronous motor no-load experiment: measuring no-load voltage U0, current I0, three-phase power P0, draw no-load characteristic curve
• Three-phase asynchronous motor short-circuit experiment: measuring short-circuit voltage UK, current IK, power PK, draw short-circuit characteristic curve
• Determination of parameters of three-phase asynchronous motor
• Mechanical characteristics of three-phase asynchronous motor under various operating condition