Nvis 7036 Ward Leonard Method of DC Machine

Separate terminals of Armature and Field windings are brought out on a terminal box fitted on top of the Motor so that one can connect them separately to the panel and can perform experiment correspondingly.

Reverse connecting Switch is provided to control the speed of DC Motor in either direction. The trainer thus provides explicit understanding of the subject. All protection devices are in built so there is almost no chance of fault or danger to user.

• Features:

- Exclusive and Compact Design
- Electrical Loading Arrangement
- Flexible Shaft Coupling Arrangement
- Provided with Digital Tachometer
- Machine with Class “B” Insulation
- Heavy Duty Base/Channel
- Equipped with Supply Indication Lamps
- Terminals Provided to Use the Optional Externally
- Equipped with Supply Indication Lamps
- Designed by Considering all the Safety Standards
- Diagrammatic Representation for the Ease of Connections
- Product Tutorial

- Mains Supply: Three Phase, 415 V, ±10 %, 50 Hz
- Machines Specification (2 Nos.): Both the Machines are flexibly coupled and mounted on a M.S. channel base acts as a Motor Generator set
- Three Phase Induction Motor acts as a Prime Mover:
            -- Type: Squirrel Cage
            -- Rating: 1 HP (also available with 2 HP and 3 HP)
            -- Voltage Rating: 415 V
            -- RPM: 1440 (No Load)
            -- Insulation: Class 'B'
- DC Machine:
            -- Type: Shunt
            -- Rating: 1 HP
            -- Voltage Rating: 200 V
            -- RPM: 1500 (No Load)
            -- Insulation: Class 'B'
- Extra DC Machine for which the speed can be Controlled using Motor Generator set.
            -- Type: Shunt
            -- Rating: 1 / 2 HP
            -- Voltage Rating: 200 V
            -- RPM: 1500 (No Load)
            -- Insulation: Class 'B'
- Meters used:
            -- Voltmeter (MC): 1 No.
            -- Ammeter (MC): 2 Nos.
- Dimensions (mm): W 600 x D 450 x H 600 (Control Panel)
                                W 600 x D 450 x H 600 (MGset)
                                W 600 x D 450 x H 600 (Motor)
- Weight:
            -- Panel: 18 kg (approximate)
            -- MG Set: 40 kg (approximate)
            -- Motor: 23 kg (approximate)

Study of the speed control of Separately Excited DC Shunt Motor in either direction by Ward Leonard Method.