Speed controller used for energy saving

In a pumping or ventilation installation, the motor, supplied direct from the mains, rotates at its nominal speed. The flow rate can be regulated with manual valve or speed controller. The speed controller enables significant electricity savings to be made, which is not the case of the manual valve. MAQ-WATT demonstrates this phenomenon by comparing the consumption in the two situations.
Educational objectives
• Energy savings by speed controller demonstrated.
• Creation of the configuration of a speed controller with software.
• Using an energy measuring unit.
• Using a clamp ammeter.

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Selected reference MAQ-WATT

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Download (MAQ-WATT_en.pdf)

Download (MAQ-WATT.pdf)

Selected reference MAQ-WATT

2 types of operation are offered:
• Direct supply of the pump with a contactor and regulation of the water flow with manual valve.
• Supply of the pump with controller and regulation of the flow rate by variation of the speed of rotation.
A measuring unit compares, among other things, the 2 powers absorbed.
A float provides a visual indication of the flow rate.

Comprises
• Wheeled frame.
• One surface pump 750W – three-phase 400VAC. Self-priming and protected against dry running.
• A 30-litre water tank makes the model self-contained.
• A manual valve for regulating the water flow.
• A float flow rate indicator.
• A cabinet with top engraved showing the diagram of operation of the system.
• A set of magneto-thermal and RC protection devices.
• A set of switches and indicator lights to select the type of operation required.
• An energy measuring unit with display of P/Q/S/I/U/V/Cosphi.
• Speed controller with software. 1500W – three-phase 400VAC.
Offset control box for controlling the controller from the top of the cabinet.
• 3 safety sockets are available at the output of the speed controller for the connection of your own pump or any other load as a fan (3x 400V / 1.5kW max.)