Universal Motor Speed Control Manufacturer,Supplier and Exporter in India

Universal Motor Speed Control

Product Code : ILS-EELE-10416

Indian Lab Suppliers supplies the Universal Motor Speed Control (Product ID: 10416) as part of its electronics engineering lab equipment range. It is a trainer that demonstrates half-wave SCR and full-wave triac speed control of a small universal motor.

Quick Answer

The half-wave controller uses an SCR and gives high torque at low speed, working in skip-cycle mode. The full-wave controller uses a triac triggered through a diac; it shows the hysteresis effect in firing and how gate slaving reduces it. Two capacitors set the firing angle, two potentiometers adjust the speed, and a snubber across the triac improves its dv/dt performance and cuts radio-frequency interference. The universal motor is rated 1/12 HP or less, and the unit has a mains switch, fuse and indicator lamp.

Key Specifications

ParameterDetail
MotorUniversal motor, 1/12 HP or less
Half-wave controlSCR, skip-cycle operation, high torque at low speed
Full-wave controlTriac with diac trigger, gate slaving
Firing networkTwo capacitors, two diodes, two potentiometers
SnubberAcross the triac, for dv/dt and RFI
MainsSwitch, fuse and indicator lamp

Where This Is Used

Used in power electronics and drives labs with Study of SCR and A.C. Phase Control (Product ID: 10418) and DV/DT Limitation of SCRs (Product ID: 10417). Mains voltage is present on the board and motor: switch off before touching the circuit and keep clear of the shaft. Related items: Universal Motor Speed Control with Power Supply & Motor (Product ID: 12890). Browse the full Electronics Engineering Lab Equipment range or related Electronics Lab Equipment products.

Frequently Asked Questions

Which devices control the motor?
An SCR for half-wave and a triac for full-wave control.

Why is a snubber fitted?
To limit dv/dt across the triac and reduce RFI.

What size is the motor?
1/12 HP or less.

Related Categories

Electronics Engineering Lab Equipment · Electronics Lab Equipment · Electricity and Magnetism

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