46971 Electrical Machine Workbench offers an excellent platform for teaching of electrical machines over a unique modular designed control unit. It provides flexibility for the students to carry out experiments over AC and DC machines using a large selection of Industry standard inbuilt components. There is an additional facility to make wireless connection on workstation with computer and to monitor real time electrical parameters using computer interfacing software. Users can also observe a real time graph between any of the AC and DC electrical parameters on computer.

Tesca WorkBench comprises of separate AC and DC measuring sections equipped with all the necessary instruments such as digital meters, facility to connect AC and DC supplies along with protection devices such as fuses, MCB’s, indicators, etc. There are multiple buses provided on the WorkBench to make external connections while performing AC and DC machines experiments.

The design of the control unit ensures to get the highest quality practical experience to users. All the necessary protective measures are taken to avoid any fault or danger.

Features

1. Equipped with measurement facilities for experimentation on AC machines, DC machines and transformers.
2. Separate AC and DC measuring sections.
3. Rust free powder coating paint on external of WorkBench.
4. Standard BS-10 terminals, and patch cords for safety.
5. Terminals are provided to obtain three phase fixed as well as variable AC and DC supplies with suitable protection.
6. High quality digital tachometer for RPM measurement which is also interfaced with DAQ (Data Acquisition System).
7. Motors provided with standard mechanical loading arrangement facility.
8. Motors with aluminum cast brake-drum/pulley with heat suppression facility.
9. Machines with class B insulation.
10. Flexible shaft coupling arrangement (Lovejoy) for motor generator (MG) sets.
11. Machines are provided with heavy duty base/channel with suitable interconnection.
12. Machines are provided with suitable protections such as MCB's, fuses. Motor generator (MG) sets provided with coupling protective cover.

Object

1. Single phase capacitor start induction motor.
2. Study of running and reversing phenomenon in a single phase capacitor start induction motor.
3. Study of single phase capacitor start induction motor.
4. Study of no load test of single phase capacitor start induction motor
5. Study of block rotor test of single phase capacitor start induction motor.
6. Study of slip test of single phase capacitor start induction motor

Three Phase Squirrel Cage Induction Motor

1. Study of running and reversing phenomenon in a three phase squirrel cage induction motor.
2. Study of no load test in a three phase squirrel cage induction motor
3. Study of block rotor test in a three phase squirrel cage induction motor.
4. Study of slip test in a three phase squirrel cage induction motor.
5. Study of load test in a three phase squirrel cage induction motor.

DC Shunt Wound Motor

1. Study of separately excited DC shunt wound motor.
2. Study of self excited DC shunt wound motor
3. Study of running and reversing phenomenon of dc shunt wound motor.
4. Study of speed control of self excited DC shunt wound motor by flux field current control method.
5. Study of speed control of self excited DC shunt wound motor by armature control method.

Universal Motor

1. To study speed control of universal motor in DC mode.
2. To study speed control of universal motor in AC mode.

PMDC Motor

1. To study PMDC motor and operation through lead acid battery.

Three Phase Synchronous Motor

1. To study operational working of three phase synchronous motor at no load.
2. To study V and Inverse V curve of three phase synchronous motor at no load.

Technical Specifications

Electrical Measuring Instruments

AC Ammeter (4 nos.)

• Type : Digital
• Range : 10A

AC Voltmeter (4 nos.)

• Type : Digital
• Range : 450Vrms

DC Ammeter (4 nos.)

• Type : Digital
• Range : 20A

DC Voltmeter (4 nos.)

• Type : Digital
• Range : 300V

Single Phase Wattmeter (2 nos.)

• Type : Digital
• Range : 4kW

DC Supply (for excitation purpose only)

• Voltage : 300V ± 10%
• Current : 2Amp

DC Power Supply

• DC output voltage (fixed) : 220V ± 10%, 2A
• DC output voltage (variable) : 220V ± 10%, 12A

Protective devices

• Three Phase MCB (TPN) : 2 nos.