Three-Phase Power Supply Unit Manufacturer,Supplier and Exporter in India

Product Code : SCL-EI-10734

The three-phase power supply unit is an electrical engineering teaching apparatus used for demonstrating three-phase AC supply, phase sequence, line voltage, phase voltage and balanced-load concepts. It is designed for colleges, polytechnics, vocational institutes, physics laboratories and electrical training rooms that require controlled three-phase output for supervised practical work.

Product Description

The three-phase power supply unit provides a laboratory source for experiments involving three-phase circuits, star and delta connections, phase relationship, load balancing and motor demonstrations. It helps students understand how three alternating voltages are separated by phase angle and used in practical electrical systems.

This product belongs in the Electronic Instruments range and is suitable for advanced electrical training setups. It can be used alongside related power and AC-circuit teaching products such as SEG Electrical Extension Induction and Alternating Voltage and the Electrical Engineering Experiment Kit, subject to compatibility verification.

Key Features

• Three-phase teaching output: Supports practical study of 3-phase AC circuits and phase sequence.
• Electrical training use: Suitable for college, polytechnic and vocational laboratory demonstrations.
• Balanced-load experiments: Helps students compare load behaviour across three phases.
• Motor demonstration support: Can support compatible three-phase motor experiments when ratings are verified.
• Clear measurement practice: Useful for measuring line voltage, phase voltage and current distribution.
• Capacity by electrical output: Capacity is defined by confirmed voltage, current and phase output, not volume.
• Safety-first design requirement: Protection, earthing, insulation and overload details must be confirmed before use.

Technical Specifications

What's Included in the Kit

• 1 three-phase power supply unit
• Mains input lead or power cord
• Output leads or safety terminals
• Fuse, MCB or protective accessory
• User manual or experiment guide, if supplied

Applications / Uses

• Demonstrating three-phase AC supply in electrical engineering laboratories.
• Teaching line voltage, phase voltage and phase sequence.
• Supporting star and delta connection experiments.
• Studying balanced and unbalanced load behaviour.
• Using with compatible AC circuit equipment and power products such as AC/DC power supply 24 V 10 A.
• Comparing three-phase supply concepts with single-phase and low-voltage supplies such as Power supply unit 1-12 V / 6 A AC/DC.

How to Use the Three-Phase Power Supply Unit

1. Place the unit on a dry, stable and insulated laboratory bench.
2. Confirm the input supply, output voltage, current rating, earthing and protection details.
3. Keep the output switched off before making any circuit connections.
4. Connect the R, Y and B phases, neutral and earth only as shown in the verified wiring diagram.
5. Attach the approved load, meter, motor or training module within the rated limits.
6. Switch on the supply and observe phase sequence, voltage readings and load response.
7. Switch off the output before changing loads, terminals or circuit connections.

Safety note: Three-phase electrical equipment must be used only under qualified teacher or technician supervision. Do not bypass earthing, overload the unit, open the enclosure or connect unverified loads.

Care & Maintenance

• Keep the unit dry, ventilated and free from dust, moisture and metal particles.
• Inspect cables, terminals, switches, fuses and enclosure before each practical session.
• Store test leads separately to prevent insulation damage.
• Remove damaged units from use until checked by a qualified technician.

Why Choose Lab Glassware Manufacturer

Lab Glassware Manufacturer supplies laboratory glassware, scientific instruments, physics apparatus, electronic instruments, lab experiment setups, science kits, mathematics kits, didactic models and STEM equipment for educational and institutional buyers. The brand supports schools, colleges, universities, distributors and export customers with classroom and laboratory products. Buyers can source this unit with related electrical training apparatus from the Electronic Instruments category.

Frequently Asked Questions

What is a three-phase power supply unit used for?

A three-phase power supply unit is used to demonstrate three-phase AC circuits, phase sequence, star-delta connections, line voltage, phase voltage and load behaviour in electrical laboratories.

Is this suitable for school physics labs?

It is more suitable for advanced school labs, colleges, polytechnics and vocational electrical training rooms. Use must be supervised by a trained teacher or technician.

What ratings should be confirmed before ordering?

Confirm input voltage, output voltage, output current, frequency, terminal type, protection features, earthing arrangement, enclosure type and certification documents.

Can it be used for motor demonstrations?

Yes, only if the motor voltage, current and connection type match the verified output rating of the power supply unit.

Does it include overload protection?

Overload protection is not confirmed. Add details such as fuse, MCB, current limiting, thermal protection or short-circuit protection only after checking the final datasheet.

Can students wire circuits directly?

Students should wire circuits only under teacher supervision, with the output switched off and after the circuit diagram has been checked.

Request the three-phase power supply unit for electrical engineering training, or browse more laboratory power supplies in our Electronic Instruments category.

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