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EM-3000 Electrical Machines System

1. Modular design provides flexible experimental requirement

  2. Each Module panel height compatible with DIN A4 standard

  3. Using 4 mm safety sockets and plugs

  4. Each DC/AC power supply equipped with overload protection 

  5. Rotary machine and brake with overheating protection

  6. Adopting digitized and microprocessor-based measuring instrument to provide high-accuracy measurement

  7. Brake with constant speed / constant torque function, easy to operate

  8. Drawing complete T/N curve

  9. Connecting to PC, measuring and drawing characteristic curve available

10. 300W-grade designed equipment suitable for learning the theory and characteristics of electrical machines

11. Stand-alone machine design equipped with two shaft ends and aluminum alloy base for coupling to other machines

12. Training panel uses 5 mm isolation bakelite, printed component symbol, value and function, easy to connect

13. Fully protected system safe to connect various kind of machines

14. Providing powerful computer measuring software for saving graphic file, drawing and printing characteristic curves

15. For the sake of safety, the system normally operates at three-phase 220V. Different line voltages can be adjusted

      by system transformer.

Category: Electrical Machine Power Electronics

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 The electrical machines system leads students to distinguish the mechanical similarities and differences among all electrical machinery. Students study and turn all kind of electrical machinery into circuit models for the foundation. Moreover, it enhances students ability for further application and control. Besides facilitating teaching, it makes students be familiar with a different kind of electrical mechanical test.

1. Single-Phase Transformer

    (1) Polarity test

    (2) Turns ratio test

    (3) Open circuit test

    (4) Short circuit test

    (5) Load characteristic tests

         Resistive load

         Inductive load

         Capacitive load

 

2. Three-Phase Transformer

    Three-phase connections

          Y -Y  connection

          Y -∆  connection

          Y -Z  connection

          ∆-Y  connection

          ∆-∆  connection

          ∆- Z  connection

 

3. DC Machines

    (1) DC permanent-magnet motor

         Connection and motor direction  control

         Torque-speed characteristic

    (2) DC shunt wound motor

         Connection and motor direction control

         Torque-speed characteristic

         Speed control

    (3) DC separately excited generator

         No load saturation characteristic

         Load characteristic

    (4) DC shunt wound generator

         No load characteristic

         Load characteristic

    (5) DC series wound motor

         Connection and motor direction control

         Torque-speed characteristic

         Speed control

    (6) DC series wound generator

          Load characteristic

    (7) DC compound wound motor

         Connection and direction control of DC cumulative-compound wound motor

         Torque-speed characteristic of DC cumulative-compound wound motor

         Speed control of DC cumulative-compound wound motor

         Connection and direction control of DC differential-compound wound motor

         Torque-speed characteristic of DC differential-compound wound motor

         Speed control of DC differential-compound wound motor

    (8) DC compound wound generator

          Load characteristic of DC cumulative-compound wound generator

          Load characteristic of DC differential-compound wound generator

 

4. Induction Machines

    (1) Single-phase induction motor

         Torque-speed characteristic with split-phase winding starting

         Torque-speed characteristic with capacitor starting and running

    (2) Three-phase squirrel cage induction motor

         Connection and motor direction control

         Y-∆ starting

         PF correction

         No-load characteristic

         Blocked-rotor test

         Torque-speed characteristic

    (3) Three-phase rotor winding induction motor

         Connection and motor direction control

         Blocked rotor test

         Torque-speed characteristic

    (4) Three-phase salient pole synchronous motor

         Connection and motor direction control

         Excitation characteristic

         Load characteristic

    (5) Three-phase salient pole synchronous generator

          Armature resistance measurement

          No load saturation and short circuit characteristic

          Load characteristic

          Excitation characteristic

 

Remark : System Transformer is provided at extra charge for the                         area where 3-phase 220 V power is not available.

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