| • This is a comprehensive electrical
engineering experimental system, providing a wide training range |
| for electric motors and control
transformers, as well as the related drive and control technologies. |
| • All motors and generators come with standard aluminium profile mounting base, coupling and foot |
| pad
for easy experimental combination via universal shaft couplings of
same height. |
| • The frame adopts standard aluminum profile with modular experiment panel design, thus, making it |
| easily to build different experiment combination on the flexible two-layer structure. All the upper parts |
| are removable including the experiment module, power supply module and frame support. |
| • All terminals are led out on printed composite panel with 4mm safety socket and connected by |
| full sealing sheathed pluggable connector. The complete unit is movable with lockable truckles on |
| bottom and available for training content extension by using other CHOIEO modular electrical units. |
|
| > TRAINING CONTENT |
| DC Motor |
| • Acknowledge of motor / instrument /
rheostat |
| • Cold resistance measurement of DC
motor/generator armature winding |
| • Starting / speed regulation / direction
control of DC separately excited motor |
| • DC generator no-load / external /
regulating characteristics |
| • DC shunt generator self-excitation and
external characteristics |
| • DC compound generator distinction and
external characteristics |
| • DC shunt motor operating / mechanical /
regulation characteristics and dynamic braking |
| • DC series motor operating / mechanical /
regulation characteristics |
| Asynchronous Motor |
| • Three phase squirrel cage asynchronous
motor working characteristics |
| Motor slip ratio measurement |
| Stator winding cold resistance
measurement |
| Stator winding head/tail end judgment |
| No-load / short circuit / load
experiment |
| • Three phase wound rotor asynchronous
motor starting / speed regulation and torque test |
| • Single phase resistor starting
asynchronous motor |
| Stator winding cold resistance
measurement |
| No-load / short circuit / load
experiment |
| • Single phase capacitor starting
asynchronous motor |
| Stator winding cold resistance
measurement |
| No-load / short circuit / load
experiment |
| • Single phase capacitor running
asynchronous motor |
| Stator winding cold resistance
measurement |
| Effective turns ratio measurement |
| No-load / short circuit / load
experiment |
| • Dual speed asynchronous motor four /
two-pole working characteristics testing |
| Synchronous Motor |
| • Three phase synchronous generator running
characteristics |
| Armature winding cold resistance
measurement |
| No-load / three phase short circuit
experiment |
| Inductive load characteristics |
| External characteristics under
resistance load |
| Regulation characteristics under
resistance load |
| • Three phase synchronous motor |
| Asynchronous starting |
| V type curve under different output
power |
| Working characteristics measurement |
| • Parametric measurement of three phase
synchronous generator |
| Synchronous reactance measurement |
| Negative sequence reactance and
resistance measurement |
| Zero sequence reactance measurement |
| Subtransient / transient reactance
measurement |
| Measurement of Motor
Mechanical Characteristics |
| • Mechanical characteristics of separately
excited DC motor under different running states |
| Mechanical characteristics under
electric running and regenerative braking state |
| Mechanical characteristics under
electric running and reverse braking state |
| Mechanical characteristics under
dynamic braking state |
| • Mechanical characteristics of three phase
asynchronous motor under different running states |
| Mechanical characteristics under
electric running and generating braking state |
| Mechanical characteristics under
electric running and reverse braking state |
| Mechanical characteristics under
dynamic braking state |
| No-load loss curve |
| Single Phase
Transformer |
| • Measure the single phase transformer
ratio and parameter by no-load and short circuit experiment |
| • Draw out the T type equivalent circuit
diagram according to parameters be measured |
| from no-load and short circuit
experiment |
| • Measure the running characteristic of
transformer by resistive / inductive / capacitive load experiment |
| • Parallel operation of transformer
(polarity discrimination, parallel two transformers) |
| Three Phase
Transformer |
| • High / Low voltage winding
discrimination, primary / secondary polarity measurement |
| • Measure the three phase transformer ratio
and parameter by no-load and short circuit experiment |
| • Three phase transformer Y-y12 connection |
| • Three phase transformer Y-y6 connection |
| • Three phase transformer Y-∆11 connection |
| • Three phase transformer Y-∆5 connection |
| • Voltage vector diagram of three phase
transformer under different connections |
| Electric Drive |
| • Inching control circuit |
| • Self-locking control circuit |
| • Inching and self-locking control circuit |
| • Contactor interlock controlled three
phase asynchronous motor forward and reverse control circuit |
| • Button/Contactor interlock controlled
three phase asynchronous motor forward and reverse control circuit |
| • Remote / local / multi-place start stop
control circuit |
| • Automatic round trip control circuit |
| • AC contactor controlled three phase
asynchronous motor sequential starting circuit |
| • Time relay controlled three phase
asynchronous motor sequential starting circuit |
| • Three phase asynchronous motor sequential
starting, reversed sequence stop control circuit |
| • Three phase asynchronous motor Y-Δ
starting control circuit |
| • Reduced voltage starting control circuit
of three phase asynchronous motor with series resistor |
| • Three phase dual speed motor control
circuit |
| • Three phase asynchronous motor dynamic
braking circuit |
| • C620 lathe machine electrical control
circuit |
