General Purpose Transformers

Types of General Purpose Transformers Offered by Bruce Electric

At Bruce Electric, we offer one of the extensive collections of energy-efficient general purpose distribution transformers. These dry type general purpose transformers are used in the final phase of power distribution and are designed to convert high grid voltage to low voltage. We provide these transformers in the following configurations in 15, 30, 45, 75, and 150 KVAs.

• Single-Phase Transformers: These transformers feature a primary and secondary winding, and are designed to handle single-phase AC voltages. We provide single-phase transformers for powering lighting and household applications in residences and commercial facilities.
• Three-Phase Transformers: These transformers feature three primary and secondary windings, designed to transmit three-phase power. We offer three-phase transformers for high-power applications in industrial facilities.

Working Principle and Construction of General-Purpose Transformer

General purpose transformers operate on the principle of electromagnetic induction, where an alternating current in the primary winding generates a varying magnetic field that induces a voltage in the secondary winding. The core is usually made of laminated silicon steel to minimize energy losses due to eddy currents and hysteresis.

The primary and secondary windings are made of copper or aluminum wires and insulated to prevent short circuits. These windings are wound around the core to ensure efficient magnetic coupling. The transformer may be enclosed in a protective casing to provide isolation and shield from environmental factors. Cooling mechanisms, such as air ventilation or fans, are integrated to dissipate heat generated during operation. This construction ensures that the transformer can step up or step down voltage levels efficiently, maintain safety, and enhance the reliability and longevity of electrical systems in various applications.

Benefits of Using Dry Type General Purpose Transformers

There are several benefits of using new, used, and reconditioned general purpose transformers we offer.

• General purpose transformers enhance power distribution efficiency by reducing energy losses during transmission.
• They provide reliable voltage regulation, ensuring the safe and efficient operation of electrical devices.
• They offer robust insulation and protection, improving the safety and longevity of electrical systems.
• These transformers require minimal maintenance which results in lower operational costs.
• They support versatile applications, suitable for residential, commercial, and industrial environments.
• They protect electronic equipment from voltage spikes and surges.
• They offer a compact and flexible design, making installation easier in constrained spaces.
• These transformers help in reducing harmonic distortion in electrical networks.

Applications of General Purpose Transformers

Due to its versatility and reliability, our general purpose transformers are suitable for a broad spectrum of applications such as:

• Residential Areas: They are used to step down high voltage levels to safely operate household electrical systems.
• Commercial buildings: Our single-phase transformers are used in commercial facilities for lighting systems, general power distribution, and powering HVAC units. They help maintain voltage consistency across the devices.
• Industrial settings: We provide three-phase general purpose transformers that offer stable power supply required for operating equipment, machinery, and production lines.
• Educational Institutions: Our transformers are used to power laboratory equipment, classroom technology, and campus facilities.
• Healthcare Facilities: We have delivered single-phase and three-phase transformers to various clinics and hospitals. These devices help deliver a stable power supply to medical equipment.
• Retail Outlets: Our single-phase transformers are used in various retail outlets to support refrigeration, lighting, and electronic systems.

Tips to Choose the Right Dry Type General Purpose Transformer

Choosing the right general purpose transformers involves considering many factors to ensure optimal performance and safety. The below discussed are a few of the common factors to consider:

• Voltage Requirements: Determine the required voltage transformation: step-up or step-down.
• Power Rating: Assess the power capacity needed, measured in kilovolt-amperes (kVA).
• Operating Environment: Consider the application environment: indoor or outdoor use.
• Cooling Method: Choose the necessary cooling method: air-cooled or liquid-cooled.
• Regulatory Compliance: Evaluate the transformer’s efficiency and regulatory compliance.
• Safety Features: Check for features like protective enclosures and insulation levels for enhanced safety and reliability.

FAQs

• How do I determine the correct kVA rating for my general purpose transformer?

Calculate the total load in kilowatts (kW) and consider the power factor, then choose a kVA rating at least 20% higher to accommodate surges and future expansion.

• What maintenance practices are recommended for extending the life of a general purpose transformer?

You must perform regular visual inspections, clean, check connections, measure insulation resistance, ensure ventilation, and periodically test oil in liquid-cooled transformers.

• How do protective enclosures enhance the safety and functionality of general-purpose transformers?

Enclosures protect against dust, moisture, and physical damage, enhancing safety by preventing accidental contact and reducing electrical shock and fire risks.

• How does the efficiency of a general purpose transformer impact energy consumption and cost?

Higher efficiency of general purpose transformer helps reduce energy losses, lower electricity consumption, and boost cost savings.